Will O.-Solution Architect
Check rate
Experience
Solution Architect
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Transformed the IT landscape from an outdated monolithic architecture to a cloud-based architecture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
Solution Architect
Theben Haigerloch
Automated data transfer processes
Created new API interfaces for CRM and ERP systems
Implemented a secure data transfer platform between networks using Kafka
Integrated new artifacts, data objects and processes into the IT landscape
Reduced the processing time for customer orders from approximately 3 weeks to a few days
Environment: Java Springboot, Docker, Kubernetes, Kafka, Camunda, TOGAF
IT Consultant
Bundesdruckerei Berlin
Converted and reengineered interconnected MicroApps
Performed data migration and schema protection for Java MicroApps
Authenticated portal users through PKI and Keycloak processes
Automated authentication API testing with JUnit and Cucumber
Migrated all MicroApps from an Oracle database platform to a PostgreSQL database
Optimized the GitLab pipeline and created new processes
Environment: Kubernetes, Java, GitLab, Bash, Helm, JUnit, Kibana, Liquibase, Kustomize
IT Consultant
Bundesamt für Migration Nürnberg
Extended existing reporting and updating processes for individuals
Introduced user authorization through PGP/PKI encryption
Developed a new WebService retry mechanism in the OSB pipeline
Performed a gap analysis of business process functions in the IT landscape
Improved outdated personal data update processes
Integrated new application deployment processes
Environment: JDeveloper, Java, Oracle Service Bus, BPEL, SOAP WebServices, WebLogic, PKI
Solution Architect/Developer
DeutscheBahn Frankfurt
Integrated new processes into OpenShift clusters and introduced a new security model in the IT landscape
Implemented event tracking and external interface connections with Java Delegates
Connected to backend services through Swagger UI
Implemented a new Camunda-based application for recording station events
Environment: Eclipse, Java, Springboot, Camunda, DMN, Camel, OpenAPI
Solution Developer/Architect
IBM Böblingen
Development of a new NoSQL database solution for packages, snapshots, and transformation rules
Creation of Liquibase scripts to implement new RDBMS data structures
Implementation of test plans with JUnit
API services for signing and releasing RPM binary files using PGP encryption
Implementation of new REST API applications for service support in Docker-based Springboot applications
Environment: Eclipse, OpenShift, Java Springboot, Liquibase, Ansible, Cloudant, Jenkins, JUnit
API Developer
Schwarz IT Neckarsulm
Development of container-based (Docker) Springboot API applications
Implementation of supplier contract processes using Camunda composites
Creation of multistage Docker containers and implementation of Azure pipelines
Database schema coordination for the Lidl Big Data Lake with Liquibase Java microapps
Setup of a new OpenShift cluster with all required applications for the API
Environment: OpenShift, Java, Azure DevOps, Docker, Liquibase, Kibana, Kustomize
Solution Architect
Raiffeisen Bank St. Gallen, Schweiz
EDI data transmission and router assignment for document receipt
Approval and validation of orders through BPM processes
Design and implementation of an internal API hub using a REST interface
Introduction of a new Kubernetes-based data transmission application
Environment: Kubernetes, Java, Seeburger BIS, Camunda
Solution Architect
Würth Stuttgart
Development of API endpoints for price requests, availability checks, and orders for external partners
Implementation of API interfaces
Creation of order and purchase documents using Jasper Reports
Setup of a new OpenShift cluster API for external partners
Environment: Eclipse, OpenShift, Java, Spring, Camel, Seeburger BIS
Cloud Architect
Allianz Stuttgart
Development of a new IT landscape architecture for migrating legacy applications to the AWS cloud
Conversion of JCL jobs into Bash/Cron jobs
Porting of Cobol to Java programs
Implementation of monitoring using Java-based APIs and Prometheus
Setup of a private AWS cloud with OpenShift clusters and Java applications
Environment: Eclipse, OpenShift, AWS, Java Springboot, Terraform, CloudFormation
Solution Architect
Rhätisches Bahn Chur, Schweiz
Interface design for CAD document transfer
Migration of OSB composites to Apache Camel/Springboot applications
Database revision control and validation using Liquibase MicroApps
Implementation of embedded human workflows for document processing and modification
Provision of a Swagger-based user interface for API management
Introduction of a new OpenShift cluster with extended APIs
Environment: Eclipse, Oracle OSB, Apache Camel, OpenShift, Liquibase
Solution Architect
Bundesamt für Migration Nürnberg
Implementation of a Coherence data grid cache
Creation of interfaces between the big data warehouse and data grid storage
Design of REST microservices for data transfer interfaces
Authentication concept based on OIM and Java Spring
Introduction of a new middleware layer for capturing and storing biometric asylum seeker data
Environment: Eclipse, Oracle Cloud, Oracle Coherence, Spring Cloud, Spring Security, REST/JSON Microservices, Camel
Technical Solution Architect
Carglass Köln
Security and exception handling process design
Design, implementation, and testing of SOA composites
Setup of the development environment and adapter configuration
Integration between Oracle EBS 12 and a third-party negotiation application
Environment: Oracle SOA Suite 11g, Oracle EBS 12
Technical Solution Architect
Ascena Retail Group Columbus, OH
Development of training measures for integrating new legacy applications
Design of WebServices and SLAs for external consumer applications
Data view configuration and design of a new canonical data model
Provision of interfaces for third-party applications
Environment: Eclipse, Oracle SOA Suite 11g, Spring
Technical Lead
CoverOregon Portland, OR
Design and implementation of the enrollment suite
Development, testing, and deployment of health carrier interfaces
Design and implementation of artifact encryption/decryption processes
Design of endpoint security procedures and governance integration
Establishment of an external partner portal interface system
Environment: Eclipse, Oracle SOA Suite 11g, Jenkins, OPA, OID, OAM, Spring Beans, Java WebServices
Technical Lead
Oregon Health Exchange Salem, OR
Design of interfaces between WebCenter Portal and external healthcare providers
Process design for security and exception handling
Establishment of B2B partner agreements and document exchange
Architecture design for connectivity with the federal hub
Creation of a strategy and roadmap for the external partner portal
Environment: Eclipse, Oracle SOA Suite 11g, Oracle B2B, Spring Beans, Java WebServices, WebLogic
Enterprise Architect
American Airlines Dallas, TX
Requirements gathering and analysis for flight initiation and lifecycle
Design of interfaces between the passenger reservation system and Flight Operation/Control System
Execution of functional gap analyses and BPM ISA implementation
Planning of the SOA roadmap and implementation, including canonical data model
Development of a new application landscape for flight initiation and FOS
Environment: Oracle SOA Suite 11g, igniteXML, IBM Process Server, DataPower
SOA Developer
Qualcomm San Diego, CA
Creation of middle-tier services with OSB
Integration of legacy applications through REST services
API test automation with JUnit
Implementation of WebServices using Coherence and JAX-WS
Environment: Oracle SOA Suite 11g, WebLogic, Ant, Oracle Coherence, Java WebServices
SOA Developer
CenterPoint Energy Houston, TX
Conversion of JCAPS code to SOA Suite using JDeveloper and Spring Context Composites
Development of EDI-to-XML document interfaces through B2B and Spring Beans
Implementation of B2B partner agreements and document exchange
Integration of EBS R12 with SOA Gateway for incoming invoices
Environment: Oracle SOA Suite 11g, WebLogic, Ant, B2B, EBS R12
IT Technical Consultant
Edgen Murray Boca Raton, LA
Analysis of data gaps, business processes, and enterprise architecture
Architecture design of a workflow-based data collection system for high availability
Identification and documentation of BPM receiving processes
Environment: Oracle BPEL, Oracle EBS R11, BPM
SOA Architect
US Steel Pittsburgh, PA
Design of AP interfaces to EBS
Implementation of token-based security with SAML, SSO and LDAP
Integration of the SOA Gateway with SOA Suite for proof of concepts
Environment: Oracle SOA Suite 11g, Oracle WebLogic 10.3, Oracle EBS R12, OIM
SOA Developer/Architect
CCC IS Chicago, IL
Resolution of timeout issues in production between OWSM and ESB
Design of reprocessing processes
Architecture design for a new Geico interface
Environment: Oracle SOA Suite 10g, Oracle B2B
SOA Architect
CoServ Corinth, TX
Conducted health checks for integration projects
Developed roadmaps and strategies for upcoming projects
Developed BPM-based electronic service order systems
Implemented SOA Suite administration plans and dehydration cleanups
Monitored health and performance using BAM
Environment: Eclipse, Oracle SOA Suite 11g, BAM, Oracle Service 10.3, WebLogic
SOA Architect/Developer
LCRA Austin, TX
Integration of PeopleSoft 9 with Maximo 7 Financials for POs, personnel, members, PRs, vouchers, invoices, receipts, work orders and charts of accounts
Data structure gap analysis and business process documentation
Design, implementation and deployment of BPEL processes
Continuous testing and system integration
Migration of BPEL processes from 10g to 11g
Introduction of new interfaces via Oracle SOA Suite
Environment: Eclipse, Oracle SOA Suite, WebLogic, IBM DB2, OIM, OID, OAM
IT Consultant
Physician Capital Group Houston, TX
Design of BAM data structures, dashboards and report implementation
Development of BPEL processes for data collection and XML transformations
Environment: Oracle SOA Suite 10g, BAM
IT Consultant
Lifelock Tempe, AZ
Development of BPEL/OSB processes for main orchestration
Design of bulk enrollment strategies
Exception handling strategies with Human Workflow and Business Rules
Implementation of an integration interface to Salesforce
Introduction of a new bulk enrollment process
Environment: Oracle SOA Suite 10g, Oracle Service Bus, WebLogic
SOA Developer/Architect
Ethan Allen Danbury, CT
Analysis of data gaps and business processes using BPM tools
Implementation of an automatic inventory update process using Oracle Service Bus
Creation of a BPEL process repository for order fulfillment processes
Development of a new Oracle SOA Suite-based interface between the customer portal and JD Edwards ERP
Environment: Oracle SOA Suite, Oracle Database, BPEL, WebLogic, IBM DB2
Project Manager, SOA Architect
Cargill/Zucarmex Navolato, Mexico
Gathering requirements and designing training programs
Aligning the IT landscape with the business model
Migration of a custom ERP system to Oracle EBS (General Ledger, Accounts Payable, Accounts Receivable, HR, Financial Reporting)
Implementation of Subversion repositories via WebDAV server
Conversion of legacy modules to MVC standards using Oracle ADF, JDeveloper 10.1.3.4 and JSF
Conversion of monolithic applications to loosely coupled architecture
Integration of SOA-based APIs and WebServices
Optimization of applications through new IT architecture
Environment: Eclipse, Oracle SOA Suite, BPM, TOGAF
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Government and Administration, Retail, Manufacturing, Insurance, Healthcare, and Utilities.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Operations, Product Development, Supply Chain Management, Project Management, and Strategy.
Summary
I have built a strong profile as a solution architect with extensive experience in transforming IT landscapes across various sectors, including government, transportation, banking, and healthcare. I design clear migration strategies, modern cloud architectures, and secure APIs that deliver tangible improvements such as increased throughput and reduced processing times.
My work spans diverse technologies like Java Springboot, Kubernetes, Docker, and various CI/CD tools. I am known for reengineering legacy systems, integrating modern security, and returning measurable benefits through efficient digital transformations.
Skills
Digital Process Management
Technical Project Manager – Implementing Business Processes From An Integration Perspective
Technical Lead / Analyst – Designing/Adapting Processes Using Bpmn
Soa Developer / Architect
Solution Architect – Transforming Legacy Applications
Converting Monolithic Applications To Object-Oriented Architectures
Optimizing Legacy Business Processes By Embedding New Technologies
Enterprise Architecture
Cloud Landscape Development, Application Transformation And Adaptation
Creation And Analysis Of Togaf Diagrams/Models
Business Process Optimization/Redesign
Soa/Cloud Architect
It Landscape Development, Embedding New Architectures/Technologies, Determining Impact Analysis
Development Of Scalable And Secure Cloud Foundations
Microservices
Development And Implementation Of Java Microservices/Web Services With Rest Or Soap Interfaces
Support For Openapi And Swagger
Container Applications
Deployment Of Multistage Containerized Applications With Docker/Podman
Preparation Of Service, Image And Router Deployment In Helm Script Implementation
Application Security
User Authentication Through Oidc/Openid And Jwt Tokens
Security Authorization Through Oauth2
Implementation Of Sso Practices With Saml/Tokens
Devops Deployment
Development Of Ansible/Azure/Gitlab Pipeline Scripts
Creation Of Cloud Component Infrastructure Using Terraform Scripts
Jenkins Script Implementation For Application Installation
Creation Of Helm Chart Scripts For Kubernetes/Openshift Clusters
Big Data Middleware
Electronic Document Processing On Big Data Platforms
Development Of Document And Data Architectures With Sql/Nosql Database Systems
Kubernetes Cloud Applications
Development And Implementation Of New Kubernetes Ecosystems
Monitoring Of Kubernetes Clusters And Cloud Applications With Kibana And Rancher
Test Automation
Creation Of Test Plans With Junit, Cucumber And Pipelines
End-To-End Test Implementation With Mockito Support
Jdeveloper
Sql Developer
Eclipse
Java 21 Se/J2ee
Spring/Springboot
Docker
Podman
Maven
Gradle
Rhel 9
Ubuntu 22
Oracle Rdms Database
Mongodb
Apache Hadoop
Jira
Twiki
Confluence
Alfresco
Aws
Azure
Stackit
Apache Camel
Apache Kafka
Camunda
Kubernetes
Glassfish
Weblogic
Jboss/Wildfly
Languages
Education
University of Arizona
Master of Science, Schwerpunkt in Optimale diskrete Control · Electrical Engineering and Information Technology · Tucson, United States
Certifications & licenses
MID GmbH · Stuttgart, Germany
Oracle SOA Suite 12c Zertifiziert
Oracle University · Munich, Germany
Statistics
Experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Will is based in Esslingen, Germany and can operate in on-site, hybrid, and remote work models.
Will speaks the following languages: Spanish (Native), German (Advanced), English (Advanced).
Will has at least 17 years of experience. During this time, Will has worked in at least 15 different roles and for 27 different companies. The average length of individual experience is 1 year and 7 months. Note that Will may not have shared all experience and actually has more experience.
Based on recent experience, Will would be well-suited for roles such as: Solution Architect, IT Consultant, Solution Architect/Developer.
Will's most recent position is Solution Architect at Polizei Behörde Stuttgart.
In recent years, Will has worked for Polizei Behörde Stuttgart, Theben Haigerloch, Bundesdruckerei Berlin, Bundesamt für Migration Nürnberg, and DeutscheBahn Frankfurt.
Will is most experienced in industries like Government and Administration, Retail, and Manufacturing. Will also has some experience in Healthcare, Insurance, and Agriculture.
Will is most experienced in business areas like Information Technology, Operations, and Product Development. Will also has some experience in Project Management, Supply Chain Management, and Strategy.
Will has recently worked in industries like Government and Administration, Information Technology, and Manufacturing.
Will has recently worked in business areas like Information Technology, Product Development, and Operations.
Will holds a Master in Electrical Engineering and Information Technology from University of Arizona.
Will has 2 certificates. These include: ArchiMate® und die Nutzung des MID Innovator and Oracle SOA Suite 12c Zertifiziert.
Will is immediately available part-time for suitable projects.
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Average rates for similar positions
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 18 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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