MicroProfile Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used MicroProfile
Sercan Tatar
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 matchmaking platform that connects relatives of people in need of care directly 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 the 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 a solo 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 via presigned URLs for verification of 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 placement process.
- Building 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.
Rainer Langbehn
Last position:
Senior IT Consultant, Senior Software Architect, Senior Software Developer, Senior DevOps Engineer at Techniker Krankenkasse
Automation of the database major / minor releases for the TKeasy project
Concept for database major / minor release automation
As-is analysis
Evaluation of Redgate Flyway functionality
Concept creation
Products: Redgate Flyway, GitHub, Quest, Erwin Data Modeller, Oracle, Atlassian Jira, Atlassian Confluence
Skills: Docker, Continuous Delivery, Continuous Integration, Redgate Flyway, Major Releases, Minor Releases
Mykhaylo Khazanovych
Last position:
Lead Developer Backend, Frontend, BPMN / Administrator at Main Customs Office, Department for Digital Affairs
- Development of backend, frontend and BPMN processes in the Atlas Centralised Clearance for Import project
- Definition and implementation of REST, JMS and SOAP endpoints
- Implementation of database access with JPA
- Implementation of BPMN processes with Camunda
- Frontend implementation with React
- Configuration of JBoss via CLI
- Conducting code reviews
- Participation in communities of practice for developers and architects
- Implementation of frontend-backend communication with WebSockets
Timo Heck
Last position:
Software Developer at Continentale Krankenversicherung AG
- Implementation of a REST-based web service for querying contract, claims, customer, and sales data as part of the Dialogmanager project.
- Data release is done in compliance with CoC requirements and individual user permissions from IAM (Identity and Access Management).
- Implementation using JBoss EAP 8.1 (JakartaEE 10) and Java 21 as well as JAX-RS, CDI, Microprofile-Config, Microprofile-OpenAPI.
Ingo Dettling
Last position:
Analytics at BaFin - Federal Financial Supervisory Authority Frankfurt
- Introduction of methods for developing and automated deployment of cloud-native software and machine learning applications in OpenShift clusters
- Development of various programs in Python
- Technologies: Kubernetes, OpenShift, Kustomize, ArgoCD, Tekton, Docker, PodMan, Airflow, IntelliJ, PyCharm, Git, Bitbucket, Jira, Confluence, Python
Dirk Bolte
Last position:
Senior Software Developer at congstar
- Mobile app backend development for end-customer mobile management
- Implementation of authentication methods
- Conversion of a monolith into microservices
- Operational support
- Technologies: Kotlin, Quarkus, Microprofile, Jackson, MariaDB, Redis, JSON, XML, SOAP, Maven, Git, GitLab CI, Splunk, Grafana, Jenkins, Kubernetes, Helm, Terraform, Microservices
Oliver Langer
Last position:
Developer, Architect at libri GmbH
- Role: Developer, Architect
- Technologies: java, typescript, golang, spring (boot, web, security, data), Angular, AWS (OpenSearch, Aurora, SNS/SQS, CloudWatch, EC2, IAM), Kubernetes, Terraform, Helm, OAuth, Keycloak, CI/CD, gradlew, Liquibase, Test Driven Development, shell scripting
Christian Stellwag
Last position:
Senior Java Developer at Freelance
- Numerous projects as a Senior Java Developer or Team Lead in the technical domain, banking sector, public sector, etc. Please ask for a detailed project list. My contact: office(at)stellwag.it
Bela Bocsak
Last position:
Full Stack Lead Developer, Backend Architect at Telefonica (O2)
The software supports the complete planning and approval of antennas for mobile telephony.
The system was implemented using an event-driven microservice architecture for cloud-native deployment with Quarkus on the backend, Kafka for communication, and Angular for the frontend. Services run on Kubernetes in Google Cloud. A special challenge was synchronizing with the legacy system still used by some users.
Jan Mönnich
Last position:
Interface project at HR Solutions GmbH for Rhineland-Palatinate / BAMF at HR Solutions GmbH
- Developed an adapter from the central foreigner register to an internal application
- REST, JSON, OpenAPI, Spring Boot, Vue, Java, Maven, XAusländer
- Jira/Confluence/GitHub, Scrum+Kanban
Allal Kharaz
Last position:
Java Senior Full Stack Developer at Insurance ÖRAG
- Further development of a policy administration system (contract/claims) for the legal expenses insurer ÖRAG.
- My role: Senior Software Developer.
- The team consists of 12 developers.
- Technologies used: Java 8/21, Java EE, Quarkus, WebLogic, JPA, RabbitMQ, JTA, CI, CD, Jenkins, DB2, Maven, Jenkins, GIT (bitbucket) later GitLab, Junit, Elasticsearch, Mockito, Jira, SonarQube, Scrum, React, Workflow
- Migration and modernization of legacy systems: rewrote C and C++ code in Java to improve maintainability, scalability, and performance. Refactored Python into Java, including optimization and integration into modern architectures.
- Study on the use of AI (Codex) for implementing a Java feature. The goal is to compare the time spent and productivity of AI-supported development with a classic implementation by a developer. The results should show how strongly the use of AI affects development time and efficiency.
- Development of the following tariff calculators for the years 2024/2026: private, companies, doctors, farmers, owner-occupied G + H, landlords, traffic, club, top managers, sales representatives, special criminal law, savings bank, municipal, BayGT, doctors, Dehoga
Discover over 15,000 top freelancers
Statistics of experts using MicroProfile
Aggregated from the professional profiles of matched freelancers.
Experience
28 years
Position duration
2.5 years
Positions per freelancer
19
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Government and Administration, Banking and Finance
Certification focus areas
Information Technology, Project Management, Accounting
Bachelor's degree or higher
89%
Master's degree or higher
44%
Doctorate
22%
Certifications per freelancer
2
Most common languages
German, English, French
Speak two or more languages
91%
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 Germany 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 Germany using MicroProfile
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
MicroProfile basics
MicroProfile is a Java ecosystem for building portable cloud-native services on Jakarta EE runtimes. It focuses on the parts teams need most in distributed systems: configuration, health checks, metrics, fault tolerance, and API documentation.
What specialists deliver
- MicroProfile REST services for backend systems
- Health and readiness endpoints for operations
- Config profiles for different environments
- Fault-tolerant calls between service layers
- OpenAPI and observability setup
Tooling and stack
Strong professionals know the main MicroProfile specs and how they fit together with Jakarta EE, CDI, JAX-RS, and JSON-B. They also work with runtimes such as Open Liberty, Quarkus, WildFly, and Payara when teams need a compact cloud deployment model.
When companies need help
Bring in freelance expertise when you need to start a new service, stabilize an older Java system, or move from mixed application-server code toward a cleaner MicroProfile setup. In Germany, this often fits teams that need remote support for distributed delivery or short on-site workshops in the local language.
What strong experts do
Good specialists write clear service boundaries, set sane defaults, and make runtime behavior easy to trace. They know how to keep health, metrics, and configuration consistent across services, and they understand the tradeoffs between framework convenience and runtime portability.
Signs to look for
- Builds with MicroProfile and Jakarta EE in production
- Knows Eclipse MicroProfile and its current specs
- Can explain config, metrics, and fault tolerance clearly
- Has experience with cloud-native Java runtimes
- Delivers clean documentation for operations and handover
Frequently asked questions
What clients ask us most about MicroProfile — answered in short.
MicroProfile is used to build cloud-native Java services that need portable configuration, health checks, metrics, and resilient HTTP communication. Teams choose it when they want Java-based APIs that are easier to run and observe across different runtimes. It is a strong fit for service backends, integration layers, and modernized enterprise systems.
Eclipse MicroProfile is built on top of Jakarta EE and adds a focused set of cloud-native specifications. Jakarta EE gives the broader enterprise Java base, while MicroProfile adds practical features such as fault tolerance, health, and metrics. Many projects use both together in the same runtime.
Bring in MicroProfile expertise when a team needs to start quickly, clean up existing service code, or add operational features without rewriting the whole stack. A freelancer is also useful when internal Java experts know the business domain but need support with runtime selection, spec usage, or production hardening. This is common in Germany when teams need short, focused support around ongoing delivery.
A strong MicroProfile specialist usually also knows Jakarta EE, CDI, JAX-RS, JSON-B, and container-based deployment. Practical experience with observability, REST API design, security, and testing matters as well. If the project runs on Open Liberty, Quarkus, WildFly, or Payara, that background is especially valuable.
MicroProfile and Spring Boot both support modern Java services, but they come from different ecosystems. Spring Boot is often chosen for its broad ecosystem and fast application startup path, while MicroProfile is attractive when teams want a standards-based Java approach with portable cloud-native specifications. The better choice depends on the existing stack and runtime strategy.
A small proof of concept may only need a specialist who knows the core specs and can set up one service cleanly. Production work usually needs someone who has handled configuration, observability, failure handling, and deployment concerns before. If the system is distributed, the project benefits from someone who has seen those patterns under load.
Yes, MicroProfile work is often remote-friendly because most tasks are code, configuration, and review driven. For Germany-based teams, remote collaboration works well when requirements are clear and the specialist can join planning, testing, and handover sessions. On-site time still helps for architecture workshops or legacy system discovery.
Look for clear service design, practical use of MicroProfile specs, and evidence that the person can explain choices in simple terms. Good answers mention how they handled config, health, metrics, fault tolerance, and testing in real systems. Strong candidates also show they can support a handover, not just write code.
The average hourly rate of freelancers in Germany who have used MicroProfile in their recent projects is 94 €, which corresponds to a daily rate of about 752 € based on an 8-hour working day.
Of the freelancers in Germany who have used MicroProfile in their recent projects, 89% hold at least a Bachelor's degree, 44% hold at least a Master's degree, and 22% hold a doctorate.
On average, freelancers in Germany who have used MicroProfile in their recent projects have 28 years of professional experience, with a single engagement typically lasting around 2.5 years.
The most common languages among freelancers in Germany who have used MicroProfile in their recent projects are German (100%), English (82%), and French (27%).
The most common industries among freelancers in Germany who have used MicroProfile in their recent projects are Information Technology (100%), Government and Administration (82%), and Banking and Finance (73%).
The most common business areas among freelancers in Germany who have used MicroProfile in their recent projects are Information Technology (100%), Product Development (100%), and Project Management (64%).
Main locations of FRATCH Experts, who have recently used MicroProfile
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.
Berlin Hamburg Munich Cologne Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover 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
