Quarkus Experts in Berlin
matched in minutes by AIHire experts who deliver fast-starting Java microservices, native executables and Kubernetes-ready applications with Quarkus, GraalVM and Jakarta EE. FRATCH connects you with precise, vetted and available freelancers without slowing your project down.
Meet FRATCH Experts in Berlin, who have recently used Quarkus
Wolfram K.
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 V.
Last position:
IT Lecturer
- IT training in theory and practice for IT specialists in application development and system integration
Qaiser A.
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 N.
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 M.
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 E.
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
24 years (Germany: 20 years)
Position duration
2.7 years (Germany: 1.8 years)
Positions per freelancer
16 (Germany: 15)
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 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Berlin are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging 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 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Quarkus 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%)
- Education (67%)
- Automotive (50%)
- Healthcare (50%)
- Manufacturing (50%)
- Media and Entertainment (50%)
- Aerospace and Defense (33%)
- Banking and Finance (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What Quarkus Does
Quarkus is a Kubernetes-native Java framework for building services that start quickly and use memory efficiently. It combines familiar Java standards with build-time optimization, making it suitable for containers, serverless workloads and event-driven systems. Teams use it for REST APIs, microservices, background workers and cloud-native applications.
Core Capabilities
Quarkus specialists work across the full application lifecycle, from project setup to production operations.
- Design REST endpoints with RESTEasy Reactive and Jakarta REST
- Build persistence layers with Hibernate ORM, Panache and Hibernate Reactive
- Connect Kafka, messaging systems, databases and external APIs
- Package applications for containers, Kubernetes and OpenShift
Ecosystem And Tooling
The framework fits naturally into the Java ecosystem and supports Jakarta EE, MicroProfile and Eclipse Vert.x. Experts often combine Quarkus with Maven or Gradle, Docker, Kubernetes, OpenShift, GraalVM and observability tools. They also work with PostgreSQL, MongoDB, Redis, Kafka and cloud services, selecting extensions that keep configuration consistent across environments.
When To Bring In Specialists
Freelance expertise helps when a team is moving an existing Java service to containers, replacing a heavier runtime or creating a new platform for distributed workloads. It is also valuable when native compilation, startup behavior, reactive execution or Kubernetes deployment creates risks that general Java experience does not cover.
- A Spring-based service needs a Quarkus migration strategy
- Native builds fail because of reflection or extension configuration
- Production services need clearer tracing, metrics and health checks
- A platform team needs repeatable Kubernetes or OpenShift delivery
What Strong Experts Deliver
Strong professionals understand both application code and the runtime around it. They choose between imperative and reactive approaches deliberately, manage configuration profiles securely and test container behavior before release. They can explain build-time versus runtime behavior, limit unnecessary extensions and keep local development close to production conditions.
Working In Berlin
Berlin teams use Quarkus in software products, digital services, mobility, commerce and industrial environments where Java reliability must fit modern cloud operations. Local professionals may collaborate on-site, remotely or in a hybrid setup. Clear technical English is common, while German can help when specialists work closely with local stakeholders and regulated business teams.
Frequently asked questions
Not sure where to start with Quarkus? These answers cover the essentials.
Quarkus is used to build Java services that run efficiently in containers, Kubernetes clusters and serverless environments. Common deliverables include REST APIs, microservices, event consumers, scheduled workers and applications connected to relational or NoSQL databases.
Quarkus and Spring Boot both support production Java applications, but they make different runtime trade-offs. Quarkus emphasizes build-time processing, fast startup and efficient container execution, while Spring Boot offers a broad, mature ecosystem and familiar conventions for many enterprise teams.
A strong Quarkus freelancer should understand Java, Jakarta EE or MicroProfile, REST APIs, persistence and automated testing. Kubernetes, Docker, Kafka, GraalVM, OpenShift and observability skills are valuable when the work reaches production.
The right level depends on the risk and scope of the work. A migration, native compilation effort or reactive architecture benefits from a specialist who has solved those issues in production, while a straightforward service may suit a professional with solid Java and cloud experience plus focused Quarkus knowledge.
Quarkus can integrate with established Java code, standards and libraries, but migration still requires careful review. Teams should assess framework assumptions, reflection, configuration, threading, persistence behavior and dependencies that may not support build-time optimization.
Quarkus work is well suited to remote collaboration because source control, containerized environments, CI pipelines and observability provide a shared technical workflow. Berlin teams should agree on overlap hours, documentation standards and whether German-language communication is needed for stakeholder work.
Quarkus is often considered when a team values its Jakarta EE, MicroProfile, Vert.x, Kubernetes and OpenShift integrations. Micronaut can also deliver efficient cloud services, so the decision should reflect existing Java skills, required integrations, testing needs and the target deployment environment.
Ask a Quarkus specialist to explain a real service design, including extension choices, configuration, testing, startup behavior and deployment. Strong answers cover failure handling, security, metrics, tracing and the difference between optimizing a benchmark and operating a reliable production system.
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 24 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.
Hamburg 
Munich Request a free demo
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Philipp Thomaschewski
FRATCH CEO
