Oracle Database Experts in Essen
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Meet FRATCH Experts in Essen, who have recently used Oracle Database
Alwin G.
Last position:
IT Interim Manager & AI Strategist
- AI product development: Design of an AI-supported GRC platform to automate compliance processes.
- AI expertise: Strategic deepening in Agentic AI and GenAI as a core asset for modern IT governance
- IT interim management and strategic consulting
Boris Solos
Last position:
Generalist expert for software development at Mercor
- Training the AI models, evaluating images and texts for UI/UX, turning the provided data into insights via OpenAI Feather as part of the machine learning workflow
Technologies: OpenAI Feather
Thomas Von Prondzinski
Last position:
Consulting and project work in fixed asset inventory at tvp-interim
- Independent planning, coordination and operational counting of fixed asset inventories at SGS sites across Germany
- During the count, clarification of differences and booking of the new inventory in the fixed assets of the respective site and company
Jens Schneeweiß
Last position:
Network Technology at ISP, Internet Service Provider, BGP Peering
- Optimization of the transmission media of the data links in the Ruhr area
- Configuration/expansion of switches and routers for an autonomous system AS
- Improve the network protocols used Layer 2/3 (OSI model), RSTP, broadcast, etc.
- Laying cables, crimping, antennas, routers, switches
- Maintenance, expansion, selection and prioritization of troubleshooting measures for network monitoring (PRTG, The Dude)
- Organization and new connection of another BGP peering, data center, NGN fiber optic
- VPN IPSec site connections for 6 sites with PFSense, Fritzbox
- Configuration of WLAN devices (Mikrotik, UBNT
Label: TCP/IP, VLAN, BGP, OSPF, MPLS, VPLS, routing protocols, WLAN, EoIP, PPPoE, routing, SNMP, DHCP, DNS, NAT, native IP, VLAN, Ethernet, VoIP., switches and routers from: Nortel, Cisco, MikroTik, UBNT., network management systems: The Dude, PRTG, UISP
Adem Susam
Last position:
IT Consultant (Test Manager) & CEO at Trikolon Consulting GmbH
- Development and implementation of test concepts for complex, multi-layered systems
- Creation of regular management reports and presentations for stakeholders and clients
- Technical and disciplinary leadership of international test teams (coordination, coaching, resource planning)
- Responsibility for quality assurance across multiple test levels (unit, integration, system, and acceptance tests)
- Design of test cases and test plans in Azure DevOps; ensuring traceability and coverage
- Use of BDD approaches (Gherkin/Cucumber) to prepare test automation
- Building a test automation architecture with Playwright and integrating new tests into CI/CD pipelines
- Performing API tests (REST) and tests for mobile/PWA applications
- Setup and maintenance of test environments across multiple stages (integration, QA, UAT, pre-production)
- Test data management (synthetic and production-like data), ensuring consistency and reproducibility
- Collaboration with DevOps teams for containerization (Docker/OpenShift) and CI/CD integration
- Working under SAFe & Scrum, closely coordinating with product owners and DevOps teams
- Active participation in PI plannings, sprint reviews, and retrospectives
- Promoting an agile QA culture through coaching and knowledge sharing
- Introducing scalable test automation with Playwright → significant reduction of manual testing efforts
- Increasing test transparency through clean defect and reporting management in Azure DevOps
- Improved release quality through an end-to-end QA strategy and automated regression tests
- Strategic leadership of Trikolon Consulting GmbH and responsibility for finance, personnel, and business development
Asım Yurduseven
Last position:
Freelance BI/DWH/ETL Specialist at Akbank
- Setting architectural standards for Informatica Power Center development teams
- Maintenance-performance-health for DWH (Exadata) environments
- Qlik Sense / BO reports architectural standards
- Implementing best practices in ETL tasks
- Documentation ETL standards on Confluence
- Dynamic Data Masking rules for GDPR/KVKK regulations by using Informatica DDM tool
- DWH Data model Power Designer
- Upgrade Qlik Sense versions
- Merge all Informatica server's repository databases on one Oracle DB
Nguyen Nam Tran
Last position:
Finance + Project Management Advisor
- Operational and financial support for the start-up build of a medical care center brand in Germany with 11–25 planned locations
- Designing a scalable site rollout model including a standardized ramp-up (go-live, capacity, FTE plan, revenue/cost projections)
- Developing an operating model and making TCO/make-or-buy decisions
- Building site business cases (revenue mix, cost structure, break-even, sensitivities) to prioritize the expansion pipeline
- Setting up liquidity and financing planning, including deriving funding requirements
- Establishing a reporting structure for transparency on performance and scaling progress
- Implementing budgeting and forecasting (rolling forecast, scenario analyses) for operational control of the medical care center build
- Standardizing employment contract templates and supporting the hiring setup
Gernot Lang
Last position:
Founder and Managing Director at Softwerk/Ruhr GmbH
- Architecting and developing SaaS platform for graphical definition and execution of pandas data processing pipelines
- Developed POlyglott, an open-source Python CLI tool for translation workflow management featuring PO file parsing, quality linting with glossary enforcement, and DeepL API integration for machine translation
- Developed web application for material compliance management (EU REACH) using Django and modern web technologies
- Built automated infrastructure platform using Proxmox, Terraform, and Ansible — VM provisioning, configuration management, internal DNS, and fleet-wide security hardening across multiple subnets
Andreas Adam
Last position:
IT-Application Manager at IHK-GfI
- Gathering, analyzing, specifying, and prioritizing requirements for the 'Archive and Delete' module of the Chambers of Industry and Commerce in a Scrum team
- Capturing and specifying screen/form designs, functionality, and data types in Confluence, as well as creating user stories in Jira
- Preparing PowerPoint presentations for the 'Archive and Delete' module
- Coordinating and supporting the Chambers of Industry and Commerce in the implementation of the module
- Writing SQL scripts for an Oracle database
- Technologies used: Scrum, Confluence, Jira, MS Office, Postman, JavaScript, REST API, JSON, DBVisualizer, SQL
Dmitrii Suhanov
Last position:
Senior Developer/Team Lead at Devexperts
Project Livebash (2021-12-01–2023-12-31)
Development and design of the core system
Code reviews
Developer management
CI/CD
Client communication
Leading epics
Speaking at conferences
Managing the production system
Interviewing project developers
Outcome: production system
Technologies and tools: Java 11, Java 17, Kotlin, Spring Boot, TeamCity, Gradle, AWS DynamoDB, JUnit, Mockito, Docker, Docker Compose, AWS SQS, AWS EC2, AWS S3, AWS MediaLive, Ethereum, Postman
Project Robinhood (2024-01-01–2024-05-31)
Customization and development of product features for specific clients
Interviews with project developers
Technologies and tools: Java 17, Java RX, Kotlin, Spring Boot, TeamCity, Gradle, JUnit, Mockito, Docker, Docker Compose, PostgreSQL
Projects Sway, Tickmill, Pepperstone, UCapital (2024-06-01–present)
Customization and development of product features for specific clients
Bug fixes
Porting tickets from the product
Feature development
Technologies and tools: Java 17, Java RX, Kotlin, Spring Boot, TeamCity, Gradle, JUnit, Mockito, Docker, Docker Compose, PostgreSQL
Kamal Tarik Rana
Last position:
Design and development of a requirements verification tool based on the INVEST principle at Ranasoft Internet Technologies
- Design of requirement verification based on the INVEST principle
- Implementation of the prediction model with scikit-learn and BERT
- Implementation of the web client with ReactJS and FastAPI
- Adaptation of the T5 model to improve user story generation according to the INVEST framework
- Certification of NLP and scikit-learn
- Technologies: Python, NLP, Scikit-Learn, BERT, T5, ReactJS, FastAPI, Cursor Visual Paradigm, Visual Studio, Draw.io, NSIS, vite, Electron
Marcel Dicks
Last position:
Software Developer / IT Tester at Continentale Krankenversicherung a.G.
Analysis, online COBOL software development and testing of dialog and batch programs in the Kranken Leistung (KL) project
Error analysis, bug fixing and ticket resolution (change requests and defects)
Documentation in collaboration with the contact office and the mathematics department
IT skills: Siemens Fujitsu BS2000, CCOM Emulation, Micro Focus Visual COBOL I and II, Eclipse IDE, UDS database system, Atlassian Confluence and Jira, ZULIP, UNIFY
Benjamin Wennmacher
Last position:
SAP Basis at IT Baden-Württemberg (BITBW)
- SAP Basis operations for complex SAP system landscapes (ABAP and Java stacks)
- Administration, monitoring, and optimization of SAP systems with regard to availability, performance, and stability
- Planning and execution of data center moves as well as migrations of SAP systems and databases
- Handling of incidents, changes, and problems according to ITIL processes, including root cause analyses
- Creation of technical concepts, operations documentation, and implementation plans
Technologies: SAP NetWeaver, ITIL processes, technical migrations
Michael Lang
Last position:
Project Manager (Interim) at medi GmbH
- Contract negotiations with Infor
- Implementation of Infor LN Cloud "Finance" in 10 countries in Europe within 6 months
- Implementation (ongoing) of materials management, purchasing and sales in 16 countries worldwide
Alain Gérard Ename
Last position:
Business Analysis / Requirements Engineering at 1&1
- Creating the functional specification for a dashboard solution for E2E management in the 5G deployment team in an Open RAN architecture
- Developing dashboards and reports with Power BI Desktop (data connection using Power Query, KPI calculations with DAX, publishing to Power BI Service)
- Developing solutions with Power Apps
- Integrating Power BI reports into Dynamics 365 Business Central
Discover over 15,000 top freelancers
Statistics of experts using Oracle Database
Aggregated from the professional profiles of matched freelancers.
Experience
24 years
Position duration
1.8 years (Germany: 3.1 years)
Positions per freelancer
18 (Germany: 15)
Top business areas
Information Technology, Project Management, Product Development
Top industries
Information Technology, Banking and Finance, Manufacturing
Certification focus areas
Information Technology, Project Management, Quality Assurance
Bachelor's degree or higher
84% (Germany: 87%)
Master's degree or higher
53% (Germany: 54%)
Certifications per freelancer
4 (Germany: 3)
Most common languages
German, English, French
Speak two or more languages
100% (Germany: 97%)
Based on our profile pool as of 30 Aug 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Essen are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows how many freelancers charge within that range.
Average rates of experts in Essen using Oracle Database
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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
Enterprise data core
Oracle Database is used for systems that need strong consistency, secure transactions, and reliable uptime. Companies bring it in for finance, logistics, CRM, reporting, and other workloads where data integrity matters more than simplicity.
What specialists deliver
- Schema design and SQL optimisation for Oracle Database
- PL/SQL procedures, packages, and job automation
- Backup, restore, replication, and disaster recovery setup
- Migration from older Oracle versions or from other databases
Ecosystem and tooling
Strong experts work across Oracle Enterprise Manager, RMAN, Data Pump, SQL*Plus, and common client tools. They also understand partitioning, indexing, AWR and ASH reports, and how Oracle options affect design choices.
When companies need help
Freelance expertise is often needed during migrations, slow-query investigations, release work, or recovery planning. Teams in Essen also bring in specialists for hybrid setups, remote support, and projects that must fit German-speaking internal IT processes.
What good experts know
A solid Oracle Database specialist reads execution plans, spots locking problems, and keeps storage, memory, and statistics aligned with workload needs. They write careful SQL and PL/SQL, and they know when a change should be tested first in a safe environment.
Business fit
Oracle Database still runs many core applications where downtime is costly and auditability matters. Companies look for experts who can stabilise legacy estates, support upgrades, and keep critical data services predictable without overcomplicating the stack.
Frequently asked questions
What clients ask us most about Oracle Database — answered in short.
Oracle Database is usually used for core business data where transactions, security, and uptime matter. It fits finance, order processing, reporting, and applications that need strong consistency across many users. Many teams also use Oracle Database for large shared schemas and long-lived enterprise systems.
Oracle Database is often chosen for deep enterprise features, mature tooling, and demanding operational needs. PostgreSQL is usually preferred for open-source flexibility, while Microsoft SQL Server often fits Microsoft-heavy environments. The right choice depends on licensing, existing skills, and how critical the workload is.
A strong Oracle Database specialist usually brings SQL, PL/SQL, indexing, backup and recovery, and performance tuning. Useful adjacent skills include Linux, shell scripting, monitoring, and migration planning. For many projects, knowledge of Data Pump, RMAN, and Oracle Enterprise Manager is also important.
Hire a Oracle Database expert when the work is high risk, time sensitive, or outside the day-to-day scope of the internal team. Typical cases include upgrades, slow systems, recovery drills, and migration work. External support is also useful when you need a fresh look at long-running performance issues.
Many Oracle Database tasks can be done remotely, especially tuning, SQL review, and migration planning. On-site work can help when access is restricted, a cutover is sensitive, or business users need close coordination. In Essen, teams often mix remote delivery with on-site workshops when needed.
A Oracle Database project that touches production systems usually needs someone who has handled similar work before. Simple query support may need less depth, but tuning, recovery, and upgrades call for proven hands-on experience. The more critical the system, the more important real incident and migration experience becomes.
Look for clear examples of solved problems, not just long tool lists. A good Oracle Database specialist can explain why a change was made, how it was tested, and what the rollback plan is. Ask for past work on execution plans, recovery, monitoring, and production-safe change management.
They usually point to the same product family: Oracle Database. Searchers also use Oracle DB or Oracle when they are looking for the database layer rather than the wider Oracle software stack. For hiring, it helps to be specific about the version, the surrounding systems, and the exact task.
The average hourly rate of freelancers in Essen, Germany who have used Oracle Database in their recent projects is 98 €, which corresponds to a daily rate of about 782 € based on an 8-hour working day.
Of the freelancers in Essen, Germany who have used Oracle Database in their recent projects, 84% hold at least a Bachelor's degree and 53% hold at least a Master's degree.
On average, freelancers in Essen, Germany who have used Oracle Database in their recent projects have 24 years of professional experience, with a single engagement typically lasting around 1.8 years.
The most common languages among freelancers in Essen, Germany who have used Oracle Database in their recent projects are German (100%), English (100%), and French (24%).
The most common industries among freelancers in Essen, Germany who have used Oracle Database in their recent projects are Information Technology (90%), Banking and Finance (62%), and Manufacturing (62%).
The most common business areas among freelancers in Essen, Germany who have used Oracle Database in their recent projects are Information Technology (95%), Project Management (81%), and Product Development (71%).
Main locations of FRATCH Experts, who have recently used Oracle Database
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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Frankfurt 
Stuttgart 
Dusseldorf 
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Dortmund 
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Dresden 
Hanover 
Nuremberg Request a free demo
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FRATCH CEO
