
Oracle WebLogic Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used Oracle WebLogic
Sercan T.
Last position:
Co-Founder & Lead Software Architect at Pflege-Pfad
- Focus: System architecture, cloud-native platforms, microservices, API design
- Product: Pflege-Pfad is a digital placement platform that directly connects relatives of people in need of care with verified care services and caregivers – without an agency and without ongoing fees.
- Business analysis & process design:
- Analysis of the German care market and identification of the key pain points of both target groups.
- Modeling of core business processes: registration, verification, care request, application, placement, and rating.
- Definition of the business model as a freemium/premium model with optional contact unlocking.
- Creation of user stories and requirements documentation for relatives, care services, and administrators.
- Design of trust and quality assurance mechanisms with document upload, admin review process, and rating system.
- Coordination with stakeholders and validation of product decisions with potential users.
- Technical implementation:
- Design and implementation of the entire platform architecture as the sole developer.
- Design and implementation of a REST API with Spring Boot and Kotlin, including JWT-based authentication.
- Development of the frontend as a single-page application with Angular 17.
- Implementation of the AWS infrastructure with EC2, RDS PostgreSQL, S3, CloudFront, and IAM.
- Document upload with AWS S3 using presigned URLs to verify care services.
- Email notifications via Resend API.
- AI-supported care service search via OpenAI API.
- Implementation of complete user flows such as registration, login, password reset, and the placement process.
- Development of an admin panel for user and care service management as well as analytics.
- CI/CD with GitHub Actions and containerized deployments with Docker.
- End-to-end tests with Playwright.
Technologies: Kotlin, Spring Boot 3, Spring Security, JWT, JPA/Hibernate, PostgreSQL, Angular 17, TypeScript, RxJS, AWS (EC2, ECS, S3, CloudFront CDN, RDS PostgreSQL, IAM), nginx, GitHub Actions, Playwright, Maven, Git, OpenAI API, Resend API, Docker, Scrum, i18n (DE/EN/TR), Kiro, feature flag architecture.
Will O.
Last position:
Solution Architect at Polizei Behörde Stuttgart
Designed a migration strategy for WLS applications to BKA Cloud and Stack IT
Created a hybrid cloud for internal testing and development with Kubernetes
Transformed the IT landscape from an outdated monolithic architecture to a cloud-based architecture
Integrated new CI/CD processes using Azure Pipelines
Quadrupled the processing throughput for personnel security checks
Migrated personnel security screening applications to Docker-based applications
Implemented CI/deployment pipelines using Azure DevOps
Environment: Java Springboot, Kubernetes, Oracle Weblogic, OpenID, Camunda, JUnit, TOGAF
Marcus B.
Last position:
Java and Quarkus Expert at Large German energy service provider
- Modernization of a large-scale Java enterprise application*
The project is modernizing a complex enterprise application that has grown over many years. The existing Spring-based legacy system runs on Java 8, OSGi, and Eclipse RCP and is being gradually migrated to a modern, maintainable architecture with Java 25 and Quarkus.
Marcus works on analysis, architecture, refactoring, and implementation. One focus is on untangling historically grown structures and dependencies and on building a clean, sustainable Java and Quarkus technology stack.
Tools & technologies: Java 8, Java 25, Quarkus, Hibernate ORM with Panache, EclipseLink, OSGi, Eclipse RCP, Maven, JUnit, Mockito, REST, JSON, Git, Eclipse IDE, IntelliJ IDEA Ultimate, Jira, Confluence
Minh D.
Last position:
Project Manager / Business Analyst / Application Manager at Finance and Insurance
Introduction of 5 different process applications for different teams
Release planning: scope and time management
Resource/capacity planning
Conducting Sprint Planning / retrospectives
Increment planning (several sprints)
Preparation of Steering Committee meetings / reporting to the Board
Coordination / alignment with external suppliers / deliveries
Resource planning for multiple projects
Coordination with business department and development team
Identification of best practices with IBM BAW
Cost control and planning for the project team and external service providers
Collection of KPIs using LogScale
Analysis of application errors with LogScale / Queries
User Story definitions / coordination of requirements with the business department and development team
Testing and defect tracking
UI/UX design of applications
Preparation and moderation of Brown-Paper workshops
Test concept, test data, test organization, test execution
Collection of team velocity / metrics
Test execution
Script for automated testing
Test organization with business department and IT
Recording and prioritization of defects
Establishment and operation of the application
Establishment of application monitoring with LogScale Dashboards
Checking health endpoints with PowerShell
Post Mortem analysis
Establishment of Incident Management
Establishment of Problem Management
Analysis of errors using LogScale Queries and Dashboard
Pre-processing of data for AI
Evaluation using AI language models (Meta Llama 3.3 LLM and deepset Haystack) and RAG
Installation of runtime environments for LLMs (Large Language Model)
Evaluation of various LLMs
Installation of RAG (Retrieval Augmented Generation) and integration with LLM
Extraction of unstructured data with LLM and RAG
Project based on IBM BAW (Business Automation Workflow), Websphere Liberty, Domea, d.3, REST, LogScale (formerly Humio), Swagger, Powershell, JIRA, Confluence, Lucom Interaction Platform (LIP), Mattermost, Jabber
Niko S.
Last position:
Developing Architect, Technical Lead "gridlytics" at HH Energienetze
- Building a data integration platform for high, medium, and low voltage assets for contextual analysis of time series with master data from the SCADA control system (IEC 60870 104), INIS, and SAP.
- Responsibility for the architecture and implementation of the solution, as well as sparring partner for the Product Owner.
- Use of Kotlin, Spring Boot, Maven, TimescaleDB, PostgreSQL, liquibase, Elements IoT, Docker, Kubernetes, Grafana, Python, jupyter, and various API gateways.
Burhan D.
Last position:
Enterprise Architect & Solution Architect at DB Netz AG
With project PRIZMA, DB will modernize its infrastructure on the one hand, and develop a fail-safe IT landscape on the other hand, which can be restored quickly and securely in case of a disaster.
- Capture current architectures of existing systems as well as methodical consulting and development of target architectures
- Deepen and maintain the building plan / target IT landscape
- Implement technical architecture concepts & architecture descriptions
- Implement migration concepts for updating and further developing the platform and information systems
- Assess submitted improvement suggestions as part of the project
- Capability management: identify capability gaps, develop target visions, and support transformation planning within the enterprise architecture.
- Create a compatibility matrix of the components in use and compare dependencies of specific versions
- Create an IT concept for extending the platform with the following topics: hardware and software requirements, security, licensing, high availability, load balancing, backup & recovery, update strategy, monitoring integration, etc.
- Coordinate with business architects as well as technical architects from the cross-functional architecture area of the PRISMA program for the topics (backup, Active Directory, monitoring, Citrix, and business applications ...)
- Status meetings and alignment of project planning with the Release Train Engineer / Project Manager
- Advise the Release Train Engineer / Project Manager in identifying project risks
- Advise the System Architect Engineers in steering the implementation of the concept
- Implement the IT concept
- Document the infrastructure
Label: MS Project, LINUX, Windows, ORACLE, Java, REST, SharePoint, Microsoft Exchange, UML, Enterprise Architect, BPMN, AZURE, AWS, V-MODEL, Micro Service, VisualStudio, SAP S/4HANA, SCRUM(SAFE), ESB (TIBCO), Python, Innovator, LeanIX (TOGAF), Ansible, Ansible Tower, Ansible Automation, ROBOT, SpringBoot
Olaf K.
Last position:
CIO Advisor・IT Strategy・Tech/IT Due Diligence・Enterprise Architecture・IT Governance・AI Transformation・ex-BCG Platinion at Kiese IT
- -- ENGLISH Version (Deutsche Version unten) ---
Experience
- Ex-BCG Platinion: 14 years as Manager & Chief IT Architect, leading large-scale IT transformations in complex group structures
- 20+ years of C-level consulting across AI/IT strategy, enterprise architecture, IT organization, transformation, M&A due diligence, project recovery, and interim management
- IT leadership experience with cross-functional, intercultural teams of up to 100+ people
- Hands-on background in software engineering, IT architecture, and project management
- Fortune Europe 500 focus; numerous international projects; SME and start-up experience
Core services:
- IT strategy, enterprise architecture (EAM), target architectures and roadmaps
- PE/M&A/carve-out IT/tech due diligence, asset valuation, cost estimation
- GenAI transformation, process automation, and AI governance
- IT reorganization, target operating model (TOM), agile transformation
- IT governance, development and ITSM process optimization (BizDevOps, SAFe)
- Review and recovery of critical large-scale IT programs
- Planning and steering of transformation programs and IT project portfolios
- IT vendor and platform selection (RfI / RfP)
- Coaching & Interim management
Industries (selection): Insurance, financial services & banking, energy & utilities, telecommunications, retail & consumer goods, logistics, media, industry & engineering, healthcare, professional services
Projects (selection):
M&A Buy-side IT/Tech Due Diligence of an Acquisition in the Energy Sector (Utility, Smart Home) — AI-augmented with Anthropic Claude
AI Initiative for LLM-Based Optimisation and Automation of Sales and Billing Processes
Interim management Enterprise Architecture & group target architecture/roadmap development (METRO)
Reorganization: Design and introduction of agile IT target operating model at international wholesale group (METRO)
Design and implementation of agile BizDevOps target operating model (E.ON Grid Solutions)
Platform/vendor selection for renewal of core insurance solution of start-up (ELEMENT Insurance)
Establishment of project assurance capability and review/recovery of critical transformation projects (ERGO)
Enterprise architecture management and development of divisional/solution architectures (Deutsche Post DHL)
Strategic pricing architecture decisions in digital sales application landscape (E.ON Energie)
IT due diligence: Architecture evaluation and monetary valuation of IT assets (ProSiebenSAT.1 Media)
Interim management of group-wide security/compliance programme (ERGO)
Enabling an application landscape for different sales organizations and product structures (E.ON Energie)
Realignment of business/IT strategy and InsurTech platform selection (RfI, RfP) (nexible, ERGO Digital Ventures)
Stabilization/optimization of an agile/SAFe business/IT DevOps landscape transformation (Lufthansa AirPlus)
Process optimization and design/management of digitization and robotics introduction in power plants (RWE Nuclear)
BSS target architecture development for fixed/mobile networks convergence (Deutsche Telekom)
Optimization of IT organization model and methodology in application development and testing (Deutsche Telekom)
Evaluation of fulfillment of a general contractor agreement for run-off/migration of contract portfolios (ERGO)
-- DEUTSCHE Version (English version above) ---
Experience
- Ex-BCG Platinion: 14 years of strategy and implementation of large-scale IT transformations in complex corporate structures (Manager & Chief IT Architect)
- 20+ years of C-level-adjacent IT consulting: IT strategy, enterprise architecture, IT organization, transformation, due diligence, project recovery, and interim management
- IT leadership responsibility for cross-functional, intercultural teams of up to 100+ people
- Solid hands-on experience in software development, IT architecture, and project management
- Focus on Fortune Europe 500, numerous international projects; SME and start-up experience
Industries: insurance · financial services & banking · energy · telecommunications · retail & consumer goods · industry & engineering · logistics · media · healthcare
Services (focus areas):
- IT strategy, enterprise architecture (EAM), IT landscape target visions and roadmaps
- M&A/carve-out IT/tech due diligence, asset valuation, and cost estimation
- GenAI transformation, process automation, and AI governance
- IT reorganization, target operating model (TOM), agile transformation
- IT governance, development and ITSM processes (BizDevOps, SAFe)
- Review and recovery of critical large-scale IT projects
- Planning/steering of transformation programs and IT project portfolios
- IT service provider/platform selection (RfI, RfP)
- IT project management (agile, classic, hybrid)
- Coaching & interim management
Projects (selection):
- M&A buyer-side IT/tech due diligence of an acquisition in the energy sector (utility, smart home) — AI-augmented with Anthropic Claude
- AI initiative for LLM-supported optimization and automation of sales and billing processes
- Interim management of Enterprise Architecture and development of group target architecture in wholesale (METRO)
- Reorganization: design and introduction of an agile IT target operating model (TOM) at an international wholesale group (METRO)
- IT reorganization: introduction of an agile BizDevOps target operating model (TOM) at an energy group (E.ON Grid Solutions)
- Platform selection / vendor selection for renewal of the core insurance solution of a B2B2C start-up (ELEMENT Insurance)
- Process optimization, digitalization, and introduction of robotics in power plants (RWE Nuclear)
- Assessment of fulfillment of a general contractor agreement for run-off/migration of life insurance portfolios (ERGO)
- Business/IT strategy and InsurTech platform selection for a digital insurer/start-up (nexible, ERGO Digital Ventures)
- Enabling an energy application landscape for multiple sales units (E.ON Energie)
- Strategic architecture decisions in price management of a digital sales application landscape at an energy group (E.ON Energie)
- Stabilization/optimization of an agile DevOps IT transformation in business travel and payment management (Lufthansa AirPlus)
- Interim management in a group-wide security and compliance program of a global insurer (ERGO)
- Building project assurance capability as well as review and optimization/recovery of critical IT projects in an insurance group (ERGO)
- Building enterprise architecture management and development of domain and solution architectures for a logistics group (Deutsche Post DHL)
- M&A IT due diligence – evaluation and valuation of IT assets in the media sector (ProSiebenSAT.1 Media)
- Development of BSS target architecture and roadmap for fixed/mobile convergence (Deutsche Telekom)
- Optimization of IT governance/organization and methodology in application development and testing at a telecommunications group (Deutsche Telekom)
Kai P.
Last position:
Oracle Project Management and DBA at Scope Solutions AG
PROFILE Senior Oracle specialist, consultant and DBA with many years of experience in planning, architecture, installation, migration, operations, performance tuning and troubleshooting of large Oracle database environments. Focus on Oracle Database 19c and enterprise architectures with RAC, Active Data Guard, Golden Gate, Exadata, RMAN and CDB/PDB. Experience in heterogeneous enterprise environments on Linux, AIX, Solaris, HP-UX and Windows, as well as in cloud and migration projects. Over many years, worked as a technical consultant, DBA, architect and project manager for banks, insurers, energy providers, public institutions, industry, automotive and aviation. Combining technical Oracle expertise with operations concepts, migration, project planning, documentation and customer consulting.
ORACLE FOCUS AREAS
- Oracle Database 19c – installation, upgrade, patch/RU management, operations and troubleshooting
- Oracle Database 21c / 23ai / 26ai – knowledge of current Oracle release lines
- Oracle RAC, Active Data Guard, Data Guard, Oracle GoldenGate
- CDB / PDB, multitenant architectures and enterprise database operations
- Oracle Exadata and highly available database environments
- RMAN – backup, restore, recovery, migration and disaster recovery scenarios
- Data Pump (EXPDP / IMPDP), Transportable Tablespaces (TTS) and database-based migrations
- Performance analysis, SQL / PL/SQL, tuning, troubleshooting and capacity planning
- Oracle Enterprise Manager / monitoring and technical operational support
- Oracle Security: Wallet, TDE, Database Vault, VPD / RLS
- Oracle DWH / BI: OBIEE, ODI, OWB and Discoverer
- Oracle Applications / E-Business Suite and Oracle-based application environments
CURRENT PROJECTS
Scope Solutions AG, Basel / CH | 08/2023 – ongoing Oracle Project Management and DBA
- Installation, maintenance and regular upgrades of Oracle database systems with a focus on Oracle 19c.
- Patch and release management including OPatch and Release Updates; operations on RHEL 8.x, SLES 15.x and Windows.
- DBA support for customers in DACH and Europe and support of production, load test and other CDB/PDB environments.
- Technical operating processes and documentation via Confluence; support and service requests via My Oracle Support / Metalink.
Federal Employment Agency, Nuremberg | 04/2022 – 10/2023 Oracle Operations Support / DBA
- Operations and regular upgrades of Oracle-19c database systems on SLES 15.x.
- DBA for around 2,100 PDBs on RAC and Exadata in production, integration, load test and other environments.
- Configuration management via ARS Remedy; workflows and technical documentation via Jira and Confluence.
- Operations support and processing of service requests via My Oracle Support / Metalink.
Federal Statistical Office, Wiesbaden | 09/2021 – 03/2022 Oracle Operations and Architecture – 2022 Survey
- Merging data into a central Oracle-19c database system.
- Design of import/export procedures for the central data structure.
- KPI and performance architecture for analyses.
- Training employees in Oracle performance and DBA topics.
E.ON Digital Technology, Landshut / KKI | 03/2019 – 12/2021 Oracle Operations, Architecture and DBA
- Patch concepts, technical documentation, installation, database administration and operations of Oracle 12c/19c.
- AIX 7.x, LPAR administration including VIO server and software distribution with NIM.
- Performance monitoring and monitoring.
- Backup and restore with TSM / IBM Spectrum Protect and Oracle RMAN.
- Installation of Enterprise Manager 13c with WebLogic Server 12.1x; employee training.
KaPe Munich – various end customers in DACH / Europe | ongoing / various projects Oracle DBA, architecture, migration, DWH consulting and project management
- Many years of consulting and operational DBA work in various Oracle architectures.
- DWH/CRM platforms: planning, analysis, performance and tuning, as well as business analysis.
- RAC, Data Guard, Transportable Tablespaces, RMAN and Oracle 11g/12c in enterprise environments.
- Customer projects including Burda, Deka, E.ON, Otto Group and Augsburger Allgemeine.
AXA, Germany / Europe | 09/2018 – 02/2019 Oracle DB Operations and Migration – Cloud Architectures
- Planning, methodology and execution of Oracle database migrations to IBM Private Cloud / Spectrum and AWS Public Cloud.
- Creation of Oracle databases in the cloud with SLES and Terraform templates.
- Technical architecture work and cloud KPIs.
RWE / SÜWAG / Syna, Germany | 07/2016 – 09/2018 Oracle DB Migrations 11g/12c and Project Management
- Design, planning and execution of Oracle database migrations 11g → 12c with platform and architecture changes.
- Windows Server 2012/2016 and setup and migration of Enterprise Manager/WebLogic-based monitoring environments.
- Use of Data Guard, TTS, EXPDP/IMPDP and RMAN based on analysis of application requirements.
- Performance and tuning for Oracle 11g/12c.
MTU Aero Engines, Munich | 01/2016 – 03/2017 Oracle DBA / Requirements Engineer
- Operations and development of Oracle 11g/12c databases and application workflows.
- Interfaces to SAP via BAPI.
- Design and management of APPS modules with Visual Basic / Visual Studio and PL/SQL; version control with SVN.
UBIS (HVB), Munich | 04/2012 – 08/2015 Oracle Operations, Architecture, DBA and Project Management
- Oracle-based operations and migration of MUREX and Sophis trading platforms.
- Oracle Security, Wallet, Tablespaces, RAC, Data Guard, Database Vault, GoldenGate and DWH.
- Project management for Oracle DWH migrations and release changes from 10g to 11gR2.
- Migration OWB 11gR2 → ODI 12c and introduction of Oracle Database 12c.
- Platforms: Red Hat, AIX and Solaris.
WWK Deutschland a.G., Munich | 09/2010 – 03/2012 Oracle DB and HP-UX → Linux Migration
- Architecture, planning, operations concept and migration of 104 databases from an HP-UX cluster to Red Hat Linux.
- Single Instance with Veritas Cluster and 2-node RAC 11.2.0.2; four Data Guard databases.
- Project management for OWB/DWH migrations (>1 TB), including tuning, PL/SQL, mappings and metadata.
Allianz Deutschland, ACAS Stuttgart | 03/2010 – 09/2010 Technical DWH Project Manager
- DWH project for processing European ETL data sources.
- Business analysis and requirements management for automated loading processes.
- OWB, PL/SQL, SQL*Loader, Oracle Advanced Security / TDE, Oracle BI and Database Vault.
NETMA, Munich-Taufkirchen | 08/2007 – 02/2010 Oracle Specialist and DBA for Oracle Applications 11i
- Operations of Oracle 9i/10g and Oracle Applications 11.5.10.
- Design and development of APPS modules with PL/SQL and SVN.
- Oracle RAC, Enterprise Manager, Oracle Application Server and migration tests.
- Platforms: AIX, SLES, Windows and HP-UX.
BT Germany, Munich | 11/2007 – 04/2008 Oracle DB Migration
- Migration from Oracle 8i to 10gR2 in a Solaris cluster environment.
- Preparing offers, project planning and process planning.
Itellium (KQ), Nuremberg | 02/2007 – 08/2007 Oracle DWH Specialist
- Design and analysis of a DWH focusing on master data and logistics.
- Oracle Designer, OWB, Oracle Database, ETL, PL/SQL and External Tables; data volumes up to approx. 5 TB.
Oracle Deutschland GmbH, Munich | 10/2006 – 02/2007 and further assignments Oracle Specialist / Consultant – Data Migration and DWH
- Consulting for customers such as Volkswagen, GE Money Bank, WeKa, KSB, Swisscom and British Telecom.
- Migration Discoverer EUL4 → EUL5i, database optimization, Data Guard and web/database analysis.
- Performance and tuning on Solaris and Linux.
HaSpa, Hamburg | 07/2006 – 10/2006 Oracle Specialist / Consultant – Data Migration and DWH
- Setup of an Oracle-10gR2 environment for banking applications.
- Data transfer from DB2 / OS390, architecture, sizing, tuning and performance.
- Data preparation and integration with OWB.
AUDI, Ingolstadt | 02/2005 – 06/2006 Oracle Consultant and DBA
- Operations, installation and maintenance of Oracle 9i/10g and IAS 10g.
- RMAN, Oracle RLS, Oracle HTMLDB, Veritas Cluster, Solaris and AIX / HACMP.
- Database cloning and migration 9i → 10g; approx. 200 systems up to 4.5 TB.
Photocolor, Kreuzlingen / CH | 11/2003 – 01/2005 Project Manager / Oracle
- Implementation, configuration, technical support and acceptance of an Oracle ERP/CRM solution.
- Oracle Applications, Oracle 9i, Solaris, HP-UX, OWB and Mercury TestDirector.
- Project scope approx. 2 TB; reporting to management.
ZPD NRW, Duisburg | 05/2003 – 10/2003 Oracle Consultant
- Consulting, PL/SQL training and project planning for a nationwide Oracle Forms integration.
- Oracle on HP Superdome / HP-UX; data volume 1.2 → 2.5 TB, sizing up to 5 TB.
Messe München GmbH | 11/2002 – 05/2003 Project Manager / Oracle
- MIS/DWH solution with OWB, Discoverer, Oracle 11i / 9i and RAC.
- Architecture, design, integration, troubleshooting and consulting for data volumes of 1.5–2 TB.
Aria SA Integration, Geneva / CH | 09/2002 – 11/2002 Oracle DBA and Consultant
- Oracle 8.1.7.4 / 9i; merging the Stuttgart and Geneva databases via replication.
Santhosh K.
Last position:
Freelance Software Engineer at Zalando SE
- Drive migration of enterprise authorization platform from Styra DAS to open-source OPA via Skipper (Zalando's Golang-based ingress proxy) integration
- Optimise k8s resources and integrate native Prometheus metrics with OPA
- Migrate from internal monitoring solution to Prometheus CRs + Dash0
Tech Stack: Java/Kotlin, Golang, Python, Spring Boot, AWS, Kubernetes, Docker, OpenTofu, Prometheus, Grafana
Rashmi K.
Last position:
Service Lifecycle Manager at Vodafone Group Services GmbH
Ensured 99%+ platform availability across Android, iOS, and web, maintaining zero customer-impact and zero P1 incidents through proactive monitoring and risk mitigation.
Led Incident, Problem, and Change Management with offshore operations and vendors, driving rapid issue resolution and improving product stability.
Partnered with QA teams and international OpCos to validate defects, reproduce issues, and enhance product quality using real-time customer insights.
Managed end-to-end lifecycle activities including platform migrations, infrastructure upgrades, certificate renewals, and integrations (Identity, API, Messaging).
Established operational excellence and governance by designing service support models, leading Early Life Support (ELS) and post-launch stabilization, delivering KPI reporting, and ensuring seamless transition from project to service management.
Product: Secure Net - Classic, Converged & Home Wifi Protect
Product Description: The all-in-one digital security service that helps keep you and your family safe online when using the Vodafone (Mobile and Broadband) network. Get alerts if your personal information shows up anywhere it shouldn't, whilst we find and block malicious content across all your devices using.
Clients: Vodafone OpCos - Spain, Italy, UK, Ireland, Greece, Turkey, Germany, Portugal, Romania
Role & Location: Service Manager for Lifecycle and Operations at Düsseldorf, Germany
Worked with/on: ITSM Remedy, Jira, Confluence, Splunk, Dynatrace, Tableau, Mongo DB, Google Analytics, App Follow
Vitaliy R.
Last position:
DevOps GitOps (temp) at Signal Iduna
- Responsible for Openshift/Kubernetes on-prem administration and developer support.
- Developed URP infrastructure automation with Python, Ansible, Kustomize and ArgoCD, Argo Workflow/Events stack.
- Wrote smoke and load tests for URP infrastructure utilizing Python, Kustomize and ApplicationSets.
- Helped to set up and deploy URP infrastructure in Google Cloud, GKE.
- Set up monitoring for URP and ArgoCD stack with Splunk Cloud.
- Performed system administration tasks across RedHat Linux, Kubernetes/Openshift, ArgoCD, GitLab, Bitbucket Enterprise, Kafka and MongoDB.
Mustafa K.
Last position:
Senior Network Design and Engineer at Helaba
Designed and specified the technical network integration of a new business critical application system (MUREX) in the capital market area in a complex interface and outsourcing environment.
Created component specifications, catalog of measures and implementation plan.
Ensured proper integration of developed results in accordance with the bank’s framework: IT compliance, IT security, change and release management.
Selected and integrated a new service provider for the bank; moved critical bank applications to the provider.
Designed, implemented and supported the new Cisco network and Fortinet security setup at the service provider data center.
Acted as technical interface between bank, service providers and consulting partners.
Supported and further developed the network and security infrastructure (clients, servers, networks); performed error analysis and implemented solutions within agreed service levels.
Analyzed and diagnosed all security and network failures, glitches and malfunctions.
Initiated continuous enhancements to guarantee efficient resource utilization and acceptable response times to users.
Provided network support in financial service organization and operational change preparation on production banking network infrastructure for both large and small projects within strict change management discipline.
Designed, defined, tested, governed and improved engineering standards.
Performed role of network architect for medium-large projects involving team resources.
Kyu-Wang L.
Last position:
Software Architect & Lead Software Engineer at Landesamt für Steuern Niedersachsen
The goal of BIENE is to provide a unified tax collection program for all federal states.
Tax collection involves collecting the taxes that have been assessed. This includes, for example, taking due dates into account, recording incoming and outgoing payments, and initiating reminders or refunds. Limitation periods and payment reminders are also important. BIENE handles all payment transactions with banks and accounting.
Set up the architecture and coordinated the provision of development and test environments at the Hannover site
Installed and configured the environments on Linux servers (Apache Kafka, PostgreSQL)
Interface coordination: coordinated and aligned the connection of software products from other departments and their test data
Migrated the application server, JDK, and Maven project structure
Coordinated environments and managed builds
Implemented external interfaces
Delivered business requirements
Designed and implemented RESTful APIs and OpenAPI specifications
Designed and implemented a microservice architecture
Set up and maintained CI/CD pipelines
Deployed applications on OpenShift
Created technical documentation and diagrams
Worked with SQL databases (Oracle and PostgreSQL)
Set up authentication and authorization for the application and users
Containerized the application (automated deployment through the CI/CD pipeline)
Jan M.
Last position:
Founder, Senior Solution Architect, Team Lead, Senior DevOps Engineer at CreArt IT GmbH
- Hands-on solution architect
- Digital product development - SaaS
- Strategic consulting on software architecture, cloud migration, and DevOps processes
- Coaching SE developers and IT architects
Luca P.
Last position:
ERP Program Manager at Fiserv
The customer is undergoing a comprehensive transformation. All SAP ECC landscapes worldwide are being migrated to SAP S/4HANA, with the goal of introducing a standard template worldwide.
The program also includes the “RISE with SAP” migration and modernization program, which may involve migrating the landscapes of selected country installations to the SAP Private Cloud.
On the stakeholder side, the program reporting line extends to the company’s executive board and that of the implementation partner.
Fiserv Germany’s ERP landscape currently includes several non-standard SAP tools and applications that extend the functionality of the ECC environment and can often be integrated into downstream systems. As part of the transition to SAP S/4HANA, it is essential to assess the core functionality, integration points and future viability of these applications in order to determine their alignment with the target architecture.
The focus of the work is on providing expert advice and assessment to define the scope, strategy and roadmap for transitioning Fiserv Germany’s SAP ECC system to SAP S/4HANA.
The recommended best practices from SAP are followed and a structured approach is used to ensure a smooth transition with minimal disruption while maximizing business value.
This assessment forms the basis for a successful SAP S/4HANA transformation and ensures alignment with industry best practices, regulatory compliance and future scalability.
Migration Strategy Definition – assessment of available transition approaches based on business objectives, technical feasibility and SAP Best Practices.
Technical Readiness Assessment – conducting a system analysis to assess compatibility, custom code impact, data volume management, integration points and infrastructure readiness for SAP S/4HANA.
Business Process Impact Analysis – reviewing the latest business process documentation to define the scope and effort required to implement the necessary functions in SAP S/4HANA and to identify opportunities for process optimization.
Roadmap for Non-SAP Systems and Applications – assessment of third-party and legacy applications regarding their integration with SAP S/4HANA and recommendation of consolidation, migration or replacement strategies.
Deployment & Implementation Planning – defining a phased approach for implementation, including project schedules, risk mitigation strategies and key milestones aligned with business priorities.
This transformation takes place in phases: the Discovery phase leads to the Explore phase, which is followed by the Design phase and finally implementation.
Program management
Change management
Requirements management
Transition management
Stakeholder management
Risk management
Comprehensive coordination
Discover over 15,000 top freelancers
Statistics of experts using Oracle WebLogic
Aggregated from the professional profiles of matched freelancers.
Experience
25 years

Position duration
2.6 years

Positions per freelancer
17

Top business areas
Information Technology, Product Development, Quality Assurance

Top industries
Information Technology, Banking and Finance, Transportation

Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
90%
Master's degree or higher
63%
Doctorate
8%

Certifications per freelancer
3

Most common languages
German, English, Spanish

Speak two or more languages
96%
Based on our profile pool as of 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Germany are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging within that range.
Discover detailed Oracle WebLogic rate benchmarks:
Explore rate insightsAverage rates of experts in Germany using Oracle WebLogic
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Oracle WebLogic experts industry focus
See which industries our matched freelancers work in most often — every figure is calculated live from the freelancers on FRATCH.
- Information Technology (100%)
- Banking and Finance (76%)
- Transportation (49%)
- Government and Administration (47%)
- Automotive (43%)
- Insurance (43%)
- Retail (43%)
- Telecommunication (43%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Enterprise Java Runtime for Mission-Critical Systems
Oracle WebLogic Server is an enterprise-grade Java EE and Jakarta EE application server designed for distributed transactional workloads. It provides high availability, clustering, and enterprise messaging infrastructure. Organizations rely on it to host core banking software, manufacturing backends, and public sector portals that require zero unplanned downtime.
Core Workloads and Enterprise Use Cases
- Hosting large-scale Java EE and Jakarta EE core business services
- Managing asynchronous transactional messaging using enterprise JMS subsystems
- Orchestrating Oracle Fusion Middleware architectures including SOA Suite
- Operating enterprise deployments across hybrid data centers in Germany
Tooling, Automation, and Ecosystem Integration
Experienced professionals configure environments using WebLogic Scripting Tool scripts, Enterprise Manager, and WLST automation. Modern deployments combine traditional bare-metal setups with WebLogic Kubernetes Operator to automate lifecycle operations. Integration targets include Oracle Database instances, RAC topologies, LDAP directory services, and enterprise monitoring stacks.
Why Organizations Engage External Specialists
- Upgrading legacy WebLogic 11g or 12c installations to supported 14c releases
- Remediating security alerts, applying quarterly patch sets, and hardening domains
- Migrating on-premises domains to Oracle Cloud Infrastructure or container platforms
- Troubleshooting thread deadlocks, JVM garbage collection, and JDBC connection pool bottlenecks
Enterprise Requirements in the German Market
Enterprise environments across German automotive, insurance, and banking sectors enforce strict compliance guidelines. Freelance assignments frequently demand strict data privacy adherence and bilingual delivery in German and English. Engagements typically operate on a remote model with planned on-site presence for cutover windows and production migrations.
Benchmarks of Seasoned Platform Professionals
Strong specialists demonstrate deep command of JVM performance tuning, memory profiling, and cluster high availability configurations. They resolve silent transaction timeouts, design resilient disaster recovery topologies, and write reproducible infrastructure automation. Their expertise bridges legacy infrastructure maintenance with modern cloud containerization strategies.
Frequently asked questions
The facts hiring teams ask for most often when it comes to Oracle WebLogic.
A qualified Oracle WebLogic professional holds comprehensive experience with domain configuration, JDBC data source tuning, and enterprise JMS architecture. They automate routine administration using WLST scripting and apply quarterly CPU patches reliably without service disruption.
While Apache Tomcat serves basic servlet workloads and Quarkus targets container-native microservices, WebLogic Server provides a complete Jakarta EE application server runtime. It delivers advanced enterprise clustering, distributed transaction management via two-phase commit, and deep integration with the wider Oracle technology portfolio.
Yes, seasoned professionals utilize the WebLogic Kubernetes Operator to manage domain lifecycles, rolling restarts, and dynamic scaling on Kubernetes. They package existing Java EE applications into container images while preserving enterprise security and logging standards.
Proficiency with Oracle WebLogic Server requires solid knowledge of Oracle Database, JVM memory tuning, Linux system internals, and network load balancing. Experience with Oracle Fusion Middleware, SSL certificate pipelines, and Ansible infrastructure automation is also highly valuable.
Upgrading older domains to modern supported releases requires a specialist with deep knowledge of JDK version compatibility and deprecated Java EE APIs. An experienced Oracle WebLogic specialist evaluates custom application libraries, updates JDBC drivers, and validates cluster failover before production cutovers.
Most Oracle WebLogic initiatives in Germany operate remotely for daily administration, performance tuning, and automation scripting. However, regulated German industries like banking and energy often request brief on-site appearances during crucial go-live weekends or initial security audits.
Specialists analyze thread dumps, JVM garbage collection logs, and connection pool utilization within Oracle WebLogic. They identify stuck threads, memory leaks, and backend latency using tools like JFR, VisualVM, and Oracle Enterprise Manager.
Technical documentation and architecture scripting for WebLogic are handled in English. However, many enterprise organizations in Germany prefer German language skills for cross-functional alignment with internal system teams and change management boards.
The average hourly rate of freelancers in Germany who have used Oracle WebLogic in their recent projects is 94 €, which corresponds to a daily rate of about 755 € based on an 8-hour working day.
Of the freelancers in Germany who have used Oracle WebLogic in their recent projects, 90% hold at least a Bachelor's degree, 63% hold at least a Master's degree, and 8% hold a doctorate.
On average, freelancers in Germany who have used Oracle WebLogic in their recent projects have 25 years of professional experience, with a single engagement typically lasting around 2.6 years.
The most common languages among freelancers in Germany who have used Oracle WebLogic in their recent projects are German (100%), English (96%), and Spanish (13%).
The most common industries among freelancers in Germany who have used Oracle WebLogic in their recent projects are Information Technology (100%), Banking and Finance (76%), and Transportation (49%).
The most common business areas among freelancers in Germany who have used Oracle WebLogic in their recent projects are Information Technology (100%), Product Development (85%), and Quality Assurance (64%).
Main locations of FRATCH Experts, who have recently used Oracle WebLogic
Our freelancers and interim experts are at home across the DACH region — available on-site in the major business hubs or fully remote. Choose a location to discover matched specialists, local market insights and up-to-date availability.
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