MicroProfile Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used MicroProfile
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 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 L.
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
Timo H.
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.
Allal K.
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
Ingo D.
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 B.
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 L.
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 S.
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
Mykhaylo K.
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
- Performing code reviews
- Participating in communities of practice for developers and architects
- Implementation of frontend-backend communication with WebSockets
Bela B.
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 M.
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
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 19 Sep 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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
MicroProfile 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%)
- Government and Administration (82%)
- Banking and Finance (73%)
- Insurance (64%)
- Healthcare (55%)
- Telecommunication (55%)
- Automotive (45%)
- Transportation (45%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What MicroProfile Does
MicroProfile is a set of specifications for building cloud-native Java applications. It extends Jakarta EE with APIs for configuration, fault tolerance, health checks, metrics, distributed tracing and REST client communication. Companies use it to create modular services that can run consistently across containers and Kubernetes environments.
Core Specifications
MicroProfile specialists work across the APIs that make distributed Java services easier to operate:
- Config for externalized and environment-specific settings
- Fault Tolerance for retries, timeouts, bulkheads and fallbacks
- Health, Metrics and OpenTelemetry for service visibility
- REST Client and OpenAPI for connected, documented APIs
Runtimes and Tooling
MicroProfile runs on Jakarta EE-compatible runtimes such as Open Liberty, Payara, WildFly and Helidon. Strong professionals understand the differences in packaging, configuration and deployment between runtimes. They also use Maven or Gradle, Docker, Kubernetes, CI/CD pipelines and observability tools to move services from development into reliable operation.
Typical Project Work
Companies bring in freelance expertise when a Java system is being split into services, modernized for containers or prepared for a Kubernetes platform. Typical deliverables include:
- Designing service boundaries and REST contracts
- Implementing resilient service-to-service communication
- Adding health, metrics, tracing and operational configuration
- Migrating Jakarta EE workloads to a cloud-native runtime
- Creating deployment manifests and delivery pipelines
When Specialist Help Matters
MicroProfile expertise is valuable when distributed systems expose problems that ordinary application development does not. A company may need help choosing specifications, setting safe timeout and retry policies, tracing requests across services or preventing configuration drift. In Germany, remote collaboration is common, while regulated or complex enterprise work may still benefit from on-site workshops and clear German or English communication.
What Strong Experts Bring
The best professionals connect API knowledge with production judgment. They test failure behavior rather than only successful requests, understand container resource limits and secure service communication, and can explain trade-offs between runtimes and deployment models. Look for practical evidence in architecture decisions, automated tests, observability design and incident-ready documentation.
Frequently asked questions
What clients ask us most about MicroProfile — answered in short.
MicroProfile is used to build cloud-native Java microservices with standardized APIs for configuration, resilience, health checks, metrics, tracing and REST communication. It is especially useful when services must run in containers and integrate with Kubernetes-based operations.
MicroProfile complements the Jakarta EE ecosystem, while Spring Boot provides the Spring ecosystem and its own conventions and libraries. The right choice depends on existing platform skills, runtime preferences, portability needs and the services already used by the company.
MicroProfile work usually requires strong Java and Jakarta EE knowledge alongside REST, Maven or Gradle, Docker and Kubernetes. Useful adjacent skills include OpenTelemetry, CI/CD, OAuth-based security, messaging with Kafka or AMQP, automated testing and cloud operations.
MicroProfile projects need a professional who can design and operate distributed services, not only call the APIs. The required depth depends on the scope, but production work should include resilience behavior, observability, deployment, testing and integration with the chosen Jakarta EE runtime.
MicroProfile specialists can work remotely when service contracts, deployment environments and review practices are well documented. Teams in Germany should clarify time-zone overlap, German or English communication, access to internal systems and whether workshops or release activities require on-site attendance.
MicroProfile is supported by runtimes including Open Liberty, Payara, WildFly and Helidon, with differences in packaging, Jakarta EE support and operational features. A suitable professional can compare these options against the company’s container platform, licensing context and existing Java estate.
MicroProfile quality is visible in clear service boundaries, predictable failure handling and useful operational signals. Ask to review how the professional tests timeouts and fallbacks, documents configuration, traces cross-service requests and prepares deployments for controlled recovery.
MicroProfile assignments often involve more than implementation: specialists may need to align Jakarta EE versions, runtime behavior, Kubernetes settings and platform observability. Before starting, clarify the target runtime, required specifications, delivery pipeline, security model and ownership of production support.
The average hourly rate of freelancers in Germany who have used MicroProfile in their recent projects is 93 €, which corresponds to a daily rate of about 740 € 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
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Philipp Thomaschewski
FRATCH CEO
