Quarkus Experts in Berlin
in minutes from over 15,000 CVs with the power of AIHire experts who build fast Java services, native images, and cloud-ready APIs with Quarkus and Red Hat Quarkus. Get precise matching with vetted, available freelancers.
Meet FRATCH Experts in Berlin, who have recently used Quarkus
Wolfram Knan
Last position:
AI / Machine Learning Engineer (Projects & Applied AI) at UNIVERSITÉ PARIS 1 PANTHEON-SORBONNE & LIORA
- Designed and implemented a hybrid recommendation system (content-based + collaborative filtering)
- Built end-to-end ML pipelines including data processing, feature engineering, model training, and evaluation
- Developed RAG-based LLM systems using LangChain and vector databases for semantic search and knowledge retrieval
- Established MLOps workflows with MLflow for experiment tracking, versioning, and deployment readiness
- Implemented deep learning models (computer vision & classification) using PyTorch and TensorFlow
Ola Van Dunen
Last position:
IT Lecturer
- IT training in theory and practice for IT specialists in application development and system integration
Qaiser Abbasi
Last position:
Freelance Lead DevOps Engineer at Schwarz Gruppe Produktion
Bootstrapping a CloudOps team and building a multi-cloud provider backend for a low-code Internal Developer Platform (IDP) with env zero
Introducing user story mapping, ADRs, milestones, and backlog management
Designing and developing core APIs, setting up CI/CD pipelines, OpenTofu/Terraform scripts
Representing and communicating the team with third-party stakeholders (e.g. env zero)
(Cross-)team coaching on DevOps, software design, Terraform, Golang, and agile practices
Olaf Nouvortne
Last position:
Frontend Engineer at Danaher/Hach Lange GmbH
- Developed a SolidJS frontend UI for a spectrometric water analysis system on an ARM-based embedded Linux platform
- Prototyped UI in TypeScript React/Nx with LitElements and MQTT integration
- Built production UI using SolidJS, SUID, i18next, Ajv, MQTT.js, C3.js
- Refined requirements with UX team and water analysis system engineers
- Defined and documented system architecture, MQTT message formats, frontend architecture, and development setup
- Set up frontend system from scratch, implemented domain-oriented type system, UI components, and application state
- Managed MQTT pub/sub services and schema-based message validation in frontend
- Coached two junior frontend developers
- Worked in an agile remote team using JIRA, Git, and Bitbucket
Khaled Mohamed
Last position:
Senior/Staff Backend Engineer at Heycar (Mobility Trader GmbH)
- Heycar is a leading automotive platform redefining the used car market through intelligent data pipelines, multi-tenant services, and dealer-focused tooling. I led initiatives across backend architecture, data ingestion, and identity management to enhance scalability, reliability, and developer productivity.
- Ingestion Platform: Designed a unified ingestion platform with YAML-based configuration, enabling new dealer data pipelines to be onboarded without code changes, cutting setup time from ~2 months to 2-3 days and improving scalability by 40%.
- Keycloak Leadership: Acted as the company's Keycloak expert, scaling it for multi-tenant identity management and extending functionality with custom plugins and delegated admin APIs.
- Back-Office Tooling: Developed a back-office application integrated with Salesforce, enabling dealers to manage inventory, convert leads, and handle support requests in real time.
- Multi-Tenant Migration: Collaborated across backend teams to migrate Heycar's core services into a unified multi-tenant cluster, ensuring high availability.
- Frontend CI Optimization: Optimized monorepo delivery by implementing CircleCI dynamic config with NX, deploying only affected UI projects and drastically cutting build times.
- Observability & Mentorship: Enhanced monitoring and release reliability while mentoring backend engineers and improving code review standards.
Mario Ellebrecht
Last position:
Developer and Consultant at Freelancer
Discover over 15,000 top freelancers
Statistics of experts using Quarkus
Aggregated from the professional profiles of matched freelancers.
Experience
23 years (Germany: 19 years)
Position duration
2.7 years (Germany: 1.8 years)
Positions per freelancer
16 (Germany: 14)
Top business areas
Information Technology, Product Development, Research and Development
Top industries
Information Technology, Education, Automotive
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
100% (Germany: 94%)
Certifications per freelancer
1 (Germany: 4)
Most common languages
German, English, French
Speak two or more languages
100%
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 Quarkus
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
Fast Java services
Quarkus is a Java framework for lean services and cloud-ready back ends. It fits API layers, event-driven systems, and work that needs quick startup and low memory use. Teams often choose it for modern JVM delivery and for native builds when deployment speed matters.
What experts deliver
- REST and GraphQL services
- Kafka, messaging, and event handling
- Container-ready builds and native images
- Testing, debugging, and performance tuning
Strong specialists know how to shape a service for production, not just make it run locally. They can connect Quarkus to databases, security, observability, and build pipelines without adding heavy layers.
Ecosystem and tools
Quarkus works well with standard Java skills and the wider Jakarta EE and MicroProfile ecosystem. Common work includes Maven or Gradle setup, Hibernate ORM, RESTEasy Reactive, SmallRye, and OpenShift-friendly delivery. Many projects also need secure config, health checks, and tracing.
When companies bring help
Berlin teams often look for Quarkus expertise when they need to modernize Java systems, launch new services, or move workloads into containers. It is also useful when internal teams know Spring well but need a specialist to compare Quarkus with Spring Boot and pick the right path.
What strong specialists do
A good Quarkus professional writes clear, testable code and understands the runtime, not only the framework API. They think about startup time, memory use, build configuration, security, and integration contracts early. They also explain trade-offs in plain terms so product and engineering stay aligned.
Typical project fit
- New microservices and API back ends
- Migration from older Java stacks
- Cloud and container platform work
- Production hardening and support
For Berlin-based work, some teams want on-site collaboration at the start, then remote delivery after the architecture is set. Others hire remote specialists for focused short-term tasks such as native packaging, integration fixes, or release support.
Frequently asked questions
Not sure where to start with Quarkus? These answers cover the essentials.
Quarkus is used to build Java services that start quickly and use resources efficiently. Companies choose it for APIs, microservices, event-driven systems, and cloud deployments where packaging and startup behavior matter. It is also a strong fit for native images and container-based delivery.
Quarkus is often weighed against Spring Boot when teams want modern Java with better startup time and a smaller runtime footprint. Spring Boot has a larger general audience, while Quarkus is often chosen for cloud-native and native-image work. The right choice depends on the existing stack, delivery goals, and team comfort.
Bring in a Quarkus specialist when a service must be moved into production fast, a Java estate needs modernization, or a native build has to be stabilized. Companies also call in help when they need a clean setup for security, observability, or database integration. It is a good fit when internal teams know Java but lack framework depth.
A strong Quarkus expert usually knows Java well and is comfortable with Maven or Gradle, REST APIs, testing, Docker, and cloud deployment. Skills in Kafka, Hibernate, PostgreSQL, security, and observability tools are often valuable too. For many projects, knowledge of Kubernetes or OpenShift helps a lot.
Yes, Quarkus can work well for migration when the target is a slimmer service or a cloud-ready runtime. The best candidates are modules that can be split cleanly and do not depend on heavy legacy behavior. A freelancer should first review coupling, build tooling, and integration points before proposing a path.
Yes, Quarkus work is often well suited to remote delivery because most tasks center on code, build pipelines, and system design. In Berlin, teams may still want some on-site time for workshops, kickoff sessions, or stakeholder alignment. Clear documentation and good communication matter more than physical presence for most phases.
Look for Quarkus work that shows production thinking: clean service boundaries, solid tests, secure defaults, and sensible build choices. A strong specialist can explain why a certain extension, runtime mode, or packaging approach was chosen. Good signals also include experience with monitoring, error handling, and deployment troubleshooting.
Red Hat Quarkus is the enterprise distribution and branding behind the project many people simply call Quarkus. Searchers often use both names, but the core framework and ecosystem are the same. A capable freelancer should understand the project itself as well as how it is used in Red Hat and OpenShift environments.
The average hourly rate of freelancers in Berlin, Germany who have used Quarkus in their recent projects is 83 €, which corresponds to a daily rate of about 667 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used Quarkus in their recent projects, 100% hold at least a Bachelor's degree.
On average, freelancers in Berlin, Germany who have used Quarkus in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 2.7 years.
The most common languages among freelancers in Berlin, Germany who have used Quarkus in their recent projects are German (100%), English (100%), and French (50%).
The most common industries among freelancers in Berlin, Germany who have used Quarkus in their recent projects are Information Technology (100%), Education (67%), and Automotive (50%).
The most common business areas among freelancers in Berlin, Germany who have used Quarkus in their recent projects are Information Technology (100%), Product Development (100%), and Research and Development (83%).
Main locations of FRATCH Experts, who have recently used Quarkus
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.
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!

Hamburg
Munich