Jakarta EE Experts in Berlin
in minutes from over 15,000 CVs with the power of AIHire experts who build Jakarta EE services, modernize Java enterprise systems, and stabilize application server deployments. Get fast, precise matching with vetted, available freelancers.
Meet FRATCH Experts in Berlin, who have recently used Jakarta EE
Syed Abdul
Last position:
Senior Software Engineer at Giant Eagle
- Designed and developed AI-powered document processing solutions using Python, OCR, NLP, and Large Language Models (LLMs) to automate extraction, validation, and classification of financial documents, reducing processing time by 75%.
- Built intelligent multi-stage workflow automation pipelines integrating AI services, machine learning models, and enterprise systems to streamline financial operations and improve data quality.
- Developed reusable AI-driven transformation frameworks capable of processing structured and unstructured document formats (XML, CSV, JSON, TXT, DAT) and normalizing them into unified business schemas.
- Designed and developed Python-based REST APIs and backend services supporting enterprise finance applications and high-volume data processing workloads.
- Built scalable data synchronization pipelines between Oracle CFIN and SQL databases, incorporating machine learning models for cash-flow forecasting and AP/AR anomaly detection.
- Architected and deployed Apache Airflow workflows to orchestrate AI-powered data pipelines, automating end-to-end processing from document ingestion through financial system integration.
- Led the migration of critical enterprise integrations from MuleSoft to Python-based services, improving maintainability, performance, and operational flexibility while preserving complete data integrity.
- Managed the full API lifecycle including solution design, implementation, documentation, deployment, monitoring, and production support for mission-critical financial systems.
- Collaborated directly with finance stakeholders to identify business challenges, define solution requirements, and deliver measurable operational improvements through automation and AI-driven workflows.
- Worked closely with cross-functional engineering and business teams to rapidly iterate on features, improve processes, and drive successful adoption of AI-enabled solutions.
- Provided technical leadership through architecture reviews, technology decisions, code reviews, and engineering best practices across integration and automation initiatives.
- Mentored developers, established coding standards, and contributed to improving software quality, maintainability, and delivery effectiveness across projects.
- Provided production support during critical month-end and quarter-close financial processes, performing root-cause analysis and implementing rapid fixes to ensure system reliability and data accuracy.
Abhiroop Basu
Last position:
Software Engineer III at Foundry Digital
- Developed and deployed microservices in Kotlin and Spring Boot, integrated AWS Secrets Manager to secure credentials and decreased network calls using Spring cache.
- Refactored Kafka consumer using Spring Kafka with semaphore-based backpressure to cap records and keep heap memory stable under spikes; switched to batch upserts to cut down on database invocations; added Testcontainers integration tests for Kafka and database to pave the way for future changes.
- Automated the financial reconciliation workflow in Spring Boot (Kotlin) using Spring Scheduler, transactional boundaries, JPA/Hibernate on MySQL, and Flyway migrations, saving the accounts team 16+ hours per week.
- Designed and dockerized payments end-to-end test framework in Robot (Python) with reusable keyword libraries and profiles; integrated with GitLab CI (JaCoCo XML and HTML reports) to accelerate releases and lift code coverage to 80%.
- Implemented end-to-end observability on Datadog by instrumenting services with Datadog APM, correlating metrics and logs, provisioning dashboards, and creating monitors with burn-rate alerts and anomalies to harden reliability and give stakeholders clear visibility.
Ola Van Dunen
Last position:
IT Lecturer
- IT training in theory and practice for IT specialists in application development and system integration
Ursula Raab
Last position:
Sabbatical with Training at Own Sabbatical
Igor Kazarnovskiy
Last position:
Freelance Software Developer
Mohamed Keita
Last position:
Interim Senior Camunda & BPMN Consultant, Spring Boot & Java Backend Developer at GEMA/IT4IPM GmbH
- Subject matter expert for the client on modeling and developing Camunda BPMN 2.0
- Development of new features and APIs, and coordination of tasks
- Design and development of RESTful APIs with Swagger (code first)
- Creation of target designs, high-level concepts, and requirement specifications
- Analysis and evaluation of alternative solution approaches
- Integration of external IT systems (ANUBIS, SES, ZPS) via Google GCP Pub/Sub and RESTful web services
- Pair programming, code reviews, and collaboration with API product owners
- Consulting on transforming legacy BPMN workflows and configuring Camunda BPM
- BPMN and DMN modeling and implementation in short iterations
- Operational support, bug fixing, and knowledge documentation
- Use of TDD, static code analysis with SonarQube, and integration tests
- Automation of test cases in Java and analysis of stack traces/logs on GCP-PROD
- Identification and execution of test data and documentation of test results
Nikunjkumar Parmar
Last position:
Senior Java Backend Developer at Questax Professionals GmbH
- Provide the Price Listing Service Team Price for all cars and vans in different markets
- Adjust market-specific requirements like taxes, government subsidies, campaigns
- Import, synchronize and store new prices for all new and existing cars in Redis datastore
- Support our product and handle on-call duties
- Daily operations, developing new features, bug fixing
- Pair programming, code reviews, mob programming
- Develop POCs for new ideas
- Maintain and extend the backend
- DevOps tasks
- Perform Kubernetes updates
- Adjust and further develop Kubernetes resources
- Develop and customize Helm charts
- Adjust and update ArgoCD
- Maintain, adjust and further develop CI/CD pipelines
Olaf Titel
Last position:
CTO, Partner, Agile Coach, Product Owner at fluidx digital GmbH
- Development and launch of a browser-based platform for camera streaming, augmented reality (AR), and visual computing
- Device-independent camera streaming for smartphones, tablets, desktop PCs, as well as VR and AR headsets
- Ensuring GDPR-compliant hosting in Open Telekom Cloud and other sovereign cloud providers
- Intuitive visual and collaborative features to boost efficiency and seamlessly integrate into existing enterprise software
Sandeep Girase
Last position:
Software Engineer at ACL Digital
- Developed high-performance APIs for SDK backend on JavaEE Web, iOS, and Android, improving application performance and scalability by 30%.
- Led system design, tech stack planning, and development, ensuring 98% uptime with strong code quality and automated tests.
- Implemented CI/CD pipelines with Jenkins and GitHub Actions, reducing release cycle time by 40%.
- Deployed cloud-native applications on AWS EC2 instances, ensuring 99% uptime and optimized performance.
- Delivered clean code with full unit, component, and integration test coverage, reducing defects by 25%.
- Collaborated across engineering, QA, and product teams to deliver secure, reliable solutions.
- Mentored team members, increased development efficiency by 20%, automated routine tasks, and contributed to hiring, growing team capacity by 15%.
Anusha Ramanan
Last position:
Full-time parenting (Career Break) at Full-time parenting (Career Break)
Neil Parsonage
Last position:
Software Engineer at AKDB
- Maintenance, enhancement, modernization, and testing of the OK.VERKEHR specialized application, a monolithic Enterprise Java solution (approx. 3.5 million LOC) for vehicle registration and driving license authorities
- Design, development, testing and maintenance of end-to-end workflows (dialogs, backend services and persistence layer, test suite) for new driver's license applications, modifications/extensions of licenses, management of parking permits and truck driver cards
- Development and maintenance of web services for communication between local road traffic authorities and the Federal Motor Transport Authority (Kraftfahrt-Bundesamt), FAER register, TÃœV inspection centers and driving schools
- Performance optimization and targeted refactoring for the future migration to a cloud architecture and addition of a new web client (Vaadin)
- 3rd-level support for customers in production
Dirk Ulrich
Last position:
Developer at Future Training & Consulting GmbH
Training course with exam for Spring Certified Professional.
- Environment: Spring Boot 3, Spring Framework 6, IntelliJ
Robert Hänsel
Last position:
Senior Software Engineer at Zalando SE
Michael Okuboyejo
Last position:
Software Engineer at Zalando SE
Discover over 15,000 top freelancers
Statistics of experts using Jakarta EE
Aggregated from the professional profiles of matched freelancers.
Experience
19 years (Germany: 22 years)
Position duration
2 years (Germany: 2.2 years)
Positions per freelancer
12 (Germany: 15)
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Banking and Finance, Automotive
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
100% (Germany: 91%)
Master's degree or higher
56% (Germany: 51%)
Certifications per freelancer
2 (Germany: 3)
Most common languages
German, English, French
Speak two or more languages
71% (Germany: 96%)
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 Berlin 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 Berlin using Jakarta EE
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 Java
Jakarta EE is the current name for the Java enterprise stack once known as Java EE. It is used for secure business back ends, APIs, workflow systems, and large internal applications. Companies choose it when they need structured, long-lived software that fits complex business rules.
What it covers
- REST and SOAP services
- Transactions and security
- Persistence and data access
- Messaging and integration
- Application server setup
A strong specialist knows how these parts fit together and how to keep them maintainable over time.
Where it fits
Jakarta EE is common in banking, insurance, public sector systems, and other environments that value stable enterprise Java. In Berlin, it often appears in teams that run mixed landscapes with legacy services, modern APIs, and shared business platforms. The work is usually about keeping core systems reliable while changing them safely.
When to bring in help
Companies bring in freelance expertise when a platform needs a migration from older Java EE code, help with Eclipse GlassFish, WildFly, or other application servers, or support for performance and security issues. It also helps when a team needs extra hands for delivery, testing, or release work on a live system. Short engagements are common when the scope is clear.
What strong experts do
Strong Jakarta EE professionals read existing code quickly and understand the runtime, deployment model, and integration points. They work cleanly with CDI, JAX-RS, JPA, and messaging, and they document decisions that matter later.
- Review architecture and dependencies
- Fix deployment and configuration issues
- Refactor enterprise modules safely
- Support testing and release checks
Skills that matter
The best specialists bring deep Java knowledge and practical experience with containers, build tools, and secure service design. They know the difference between a quick patch and a change that will hold up under load. For Berlin-based teams, clear communication in English is often enough, but the ability to work with local stakeholders on site can matter for sensitive systems.
Frequently asked questions
What clients ask us most about Jakarta EE — answered in short.
Jakarta EE is used for enterprise Java systems that need clear structure, transactions, security, and stable deployment. It fits internal business applications, service layers, and integration-heavy back ends. Many teams use it when they want proven Java standards rather than a lightweight web stack.
Jakarta EE focuses on standard enterprise APIs and application-server style runtimes, while Spring Boot leans on convention, starters, and a broader framework ecosystem. The right choice depends on the codebase, hosting model, and how much standardization the team wants. In many companies, the answer is not either-or, because both can appear in different parts of the landscape.
A strong Jakarta EE specialist usually brings solid Java, SQL, HTTP APIs, and application-server knowledge. CDI, JPA, JAX-RS, messaging, security, and testing tools are common parts of the job. If the system is old or heavily integrated, experience with migration work and production debugging matters a lot.
A Jakarta EE project with a clean scope may only need someone who can solve one clear problem, such as a deployment issue or a service refactor. Larger modernization work needs deeper system knowledge because small changes can affect transactions, persistence, and security. The more critical the system, the more you want someone who has shipped similar work before.
Yes, much of the Jakarta EE work can be done remotely because the main tasks are code, configuration, and review. On-site time in Berlin helps when the system is sensitive, the access setup is strict, or the team wants close collaboration with stakeholders. Many projects use a mix of both.
Look for clear explanations of how they handled deployment, persistence, transaction boundaries, and production issues in past work. A good Jakarta EE professional can talk about trade-offs, not just tools. They should also be comfortable with tests, documentation, and safe changes in live enterprise systems.
Yes, Jakarta EE is still relevant when a company wants standard Java APIs, predictable runtime behavior, and long-term maintainability. It is especially strong in environments that already run enterprise Java or need compatibility with existing application servers. For greenfield work, the choice depends on architecture goals and the wider stack.
Before bringing in a Jakarta EE freelancer, prepare access to the codebase, build setup, deployment details, and a short description of the business problem. It also helps to list the application server, database, and any external systems involved. The clearer the environment, the faster the specialist can deliver useful work.
The average hourly rate of freelancers in Berlin, Germany who have used Jakarta EE in their recent projects is 92 €, which corresponds to a daily rate of about 733 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used Jakarta EE in their recent projects, 100% hold at least a Bachelor's degree and 56% hold at least a Master's degree.
On average, freelancers in Berlin, Germany who have used Jakarta EE in their recent projects have 19 years of professional experience, with a single engagement typically lasting around 2 years.
The most common languages among freelancers in Berlin, Germany who have used Jakarta EE in their recent projects are German (93%), English (79%), and French (21%).
The most common industries among freelancers in Berlin, Germany who have used Jakarta EE in their recent projects are Information Technology (100%), Banking and Finance (50%), and Automotive (43%).
The most common business areas among freelancers in Berlin, Germany who have used Jakarta EE in their recent projects are Information Technology (100%), Product Development (86%), and Quality Assurance (57%).
Main locations of FRATCH Experts, who have recently used Jakarta EE
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.
Hamburg 
Munich 
Cologne 
Frankfurt 
Stuttgart 
Dusseldorf 
Nuremberg Request a free demo
Get in touch with the FRATCH team and we will get back to you within 4 hours.
Would you rather directly get in touch?
We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
