Quarkus Experts in Hamburg
matched in minutes from over 15,000 CVsHire experts who deliver fast-starting Java services, native executables with GraalVM and container-ready applications for Kubernetes. FRATCH finds precise matches with vetted, available freelancers who fit your technical needs.
Meet FRATCH Experts in Hamburg, who have recently used Quarkus
Niko S.
Last position:
Developing Architect, Technical Lead "gridlytics" at HH Energienetze
- Building a data integration platform for high, medium, and low voltage assets for contextual analysis of time series with master data from the SCADA control system (IEC 60870 104), INIS, and SAP.
- Responsibility for the architecture and implementation of the solution, as well as sparring partner for the Product Owner.
- Use of Kotlin, Spring Boot, Maven, TimescaleDB, PostgreSQL, liquibase, Elements IoT, Docker, Kubernetes, Grafana, Python, jupyter, and various API gateways.
Daniel S.
Last position:
Senior Software Engineer at energielenker solutions GmbH
- Designed and implemented a Python-based ETL pipeline with the Dagster framework to transform raw energy data from heterogeneous sources using InfluxDB and visualizations in Grafana
- Defined time-based and dependency-based jobs
- Deployed to managed Kubernetes clusters using Helm
- Integrated InfluxDB Cloud
- Prepared data for use in Grafana, including cleaning, normalization, and time-based resampling in Python
- Developed dashboards and visualizations in Grafana
- Developed unit tests with mocking using pytest
- Set up a CI/CD pipeline in GitLab
Technologies: Python, Dagster, InfluxDB, Grafana, pandas, pytest, REST, CI/CD, GitLab, Container, Kubernetes, Helm, Docker, Cloud
Rainer D.
Last position:
Enterprise Architecture Management / Backend Software Developer at Polizei Hamburg
- Several projects in a police context
- Model and document police procedures/projects with Archimate (as-is/to-be) in the context of P20 (BKA)
- Create software architectures with microservices
- POC development with Springboot/Docker/Kubernetes
- Project size: 10 people
- Enterprise architecture management with Togaf and Archimate
- Backend software development Springboot
- DevOps with Kubernetes
- Implemented using: Java 17/21, Springboot 3, P20 architecture, Togaf, Archimate
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
Mark P.
Last position:
Full-Stack Software Developer, Product Data Import at Otto (GmbH & Co KG)
- Manage and operate the product data import services for the Otto merchant
- Enhance and maintain the backend systems
- Optimize and maintain AWS infrastructure
- Build a new product data import API
- Design and plan stories and features
- Conduct code reviews to ensure code quality and best practices
- Analyze and fix bugs
- Technologies: Java, Spring Boot, Kafka, AWS, Fargate, Terraform, MongoDB, Mongo Atlas, OpenAPI, GitHub, GitHub Actions, GitHub Copilot, Akhq, Debezium, JUnit, Test Containers, Hexagonal Architecture
Christian H.
Last position:
Software Developer / Lead Developer at dpa (Deutsche Presse Agentur GmbH)
- Contributed to the development of the Rubix editorial system
- Implemented various microservices based on Java, AWS S3, AWS SQS, AWS SNS, and Spring Boot, deployed to AWS ECS and AWS Fargate
- Designed and developed AWS Lambdas using TypeScript
- Used PostgreSQL in an AWS RDS Aurora cluster and AWS DynamoDB
- Implemented continuous deployment with GitLab pipelines
- Built an Infrastructure as Code environment with AWS CDK
- Set up and maintained a monitoring platform using AWS CloudWatch
- Developed various frontend components with Vue.js
- Designed the microservice architecture applying Domain Driven Design and GraphQL interfaces
Johannes E.
Last position:
Libri GmbH
- Operation and further development of the inventory system for booksellers (Quimus). It is an in-house development by Libri that is sold to customers as Software as a Service. The software is developed in an agile way by two developer teams (about 5 developers each). The software consists of around 25 Java microservices that mainly communicate via messaging and share a common Angular frontend. The application runs on Kubernetes in AWS.
- Technologies used: Java 17 & 21, Spring Boot 2 & 3, Hibernate, MySQL, Spring Cloud AWS, Lombok, AWS SQS, AWS SNS, AWS RDS, AWS S3, DynamoDB, Kubernetes, Docker, OpenSearch, Hibernate Search, Liquibase, Gradle, Terraform, Helm, GitLab CI, Keycloak OAuth2, TypeScript, Angular
- My focus until December 2023: Connecting additional POS systems to the inventory system. Connecting the data warehouse for report display. Extending existing features (goods receipts, invoicing, item management, ...). Operations and DevOps tasks.
- Focus from January 2024: Extracting the product search from the inventory system into a global service to use in other applications. Integrating the product search into the booksellers' online shops (also run by Libri). Importing and providing digital items in the product search.
Frank W.
Last position:
Fullstack Software Developer at Goodright GmbH
- Built backend APIs using Quarkus, Kotlin, MongoDB, Docker Compose and NGINX
- Developed frontend with React, TypeScript and Ant Design
Discover over 15,000 top freelancers
Statistics of experts using Quarkus
Aggregated from the professional profiles of matched freelancers.
Experience
24 years (Germany: 19 years)
Position duration
1.9 years (Germany: 1.7 years)
Positions per freelancer
23 (Germany: 15)
Top business areas
Information Technology, Product Development, Business Intelligence
Top industries
Information Technology, Retail, Banking and Finance
Certification focus areas
Information Technology, Product Development, Business Intelligence
Bachelor's degree or higher
71% (Germany: 94%)
Master's degree or higher
43% (Germany: 53%)
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 19 Sep 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Hamburg 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 Hamburg 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 19 Sep 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%)
- Retail (88%)
- Banking and Finance (63%)
- Transportation (63%)
- Energy (50%)
- Media and Entertainment (50%)
- Healthcare (38%)
- Manufacturing (38%)
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 fast, resource-efficient applications. It combines familiar enterprise Java standards with build-time optimization, quick startup and low memory use. Teams use it for REST services, event-driven backends, microservices and serverless workloads.
Core Applications
Quarkus supports backend systems that must start quickly, scale flexibly and run efficiently in containers. Typical projects include:
- REST APIs with Jakarta REST and JSON processing
- Event-driven services with Kafka or reactive messaging
- Microservices deployed on Kubernetes and OpenShift
- Native executables built with GraalVM
Ecosystem and Tooling
Strong Quarkus work spans the Java ecosystem as well as cloud infrastructure. Relevant components include Hibernate ORM with Panache, Hibernate Reactive, SmallRye, RESTEasy Reactive, Agroal and security integrations with Keycloak or OpenID Connect. Professionals also work with Maven or Gradle, Docker, Kubernetes, OpenShift, GraalVM and observability tools such as OpenTelemetry.
When Expertise Helps
Companies bring in freelance expertise when an existing Java service needs a cloud-native redesign or when a new platform must meet strict startup and resource requirements. In Hamburg, this can support logistics, commerce, media and industrial systems that run across private infrastructure and public cloud environments. Experts can also help teams establish reliable local, remote or hybrid delivery practices.
Delivery Responsibilities
A Quarkus specialist may shape service boundaries, select blocking or reactive APIs and connect applications to databases, messaging systems and identity providers. The work can include migration from Spring Boot or traditional Java runtimes, native-image configuration, test automation, CI/CD pipelines and Kubernetes deployment manifests. Clear technical documentation makes the result easier for internal teams to operate.
Signs of Quality
Look for professionals who can explain why Quarkus fits the workload rather than treating it as a default framework. Strong specialists understand build-time augmentation, dependency behavior, native compilation limits and production observability. Useful evidence includes:
- A working approach to startup and memory constraints
- Practical Kubernetes and container delivery experience
- Tests covering APIs, persistence, messaging and security
- A clear plan for migration, rollout and ongoing support
Frequently asked questions
Not sure where to start with Quarkus? These answers cover the essentials.
Quarkus is used to build Java services for containers, Kubernetes, serverless environments and event-driven systems. It is well suited to REST APIs, microservices and applications that benefit from fast startup and efficient resource use.
Quarkus and Spring Boot both support production Java applications, REST APIs, security and data access. Quarkus emphasizes build-time processing, container efficiency and native compilation, while Spring Boot offers a broader, mature ecosystem that may be the better fit for existing Spring-based systems.
A strong Quarkus expert usually understands Java, Jakarta EE APIs, Maven or Gradle, relational databases and automated testing. Kubernetes, Docker, Kafka, OpenShift, GraalVM, OpenTelemetry and identity standards such as OAuth2 and OpenID Connect are also valuable for end-to-end delivery.
Quarkus work benefits from solid Java and backend experience, especially when the project involves reactive execution, native images or production migration. The right level of expertise depends on whether the assignment is a focused service build, a platform modernization or an operationally critical rollout.
Quarkus projects are often suitable for remote or hybrid collaboration because source code, containers and deployment pipelines can be shared digitally. On-site work in Hamburg may still help when the expert must coordinate closely with operations, security or domain teams.
Ask a Quarkus specialist to explain the trade-offs between JVM and native execution, blocking and reactive APIs, and build-time and runtime configuration. Review a concrete delivery example, testing strategy and approach to monitoring rather than relying only on framework familiarity.
Quarkus can replace parts of a traditional Java application-server setup for services designed around containers and independent deployment. The migration still requires careful review of APIs, transactions, messaging, security, application packaging and operational assumptions.
Freelancers choose Quarkus because it brings familiar Java skills into cloud-native delivery with strong tooling for containers and Kubernetes. Its build-time model and GraalVM support create interesting technical work, while knowledge of Jakarta EE and the wider Java ecosystem remains transferable.
The average hourly rate of freelancers in Hamburg, Germany who have used Quarkus in their recent projects is 97 €, which corresponds to a daily rate of about 773 € based on an 8-hour working day.
Of the freelancers in Hamburg, Germany who have used Quarkus in their recent projects, 71% hold at least a Bachelor's degree and 43% hold at least a Master's degree.
On average, freelancers in Hamburg, Germany who have used Quarkus in their recent projects have 24 years of professional experience, with a single engagement typically lasting around 1.9 years.
The most common languages among freelancers in Hamburg, Germany who have used Quarkus in their recent projects are German (100%), English (100%), and French (13%).
The most common industries among freelancers in Hamburg, Germany who have used Quarkus in their recent projects are Information Technology (100%), Retail (88%), and Banking and Finance (63%).
The most common business areas among freelancers in Hamburg, Germany who have used Quarkus in their recent projects are Information Technology (100%), Product Development (100%), and Business Intelligence (88%).
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.
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Philipp Thomaschewski
FRATCH CEO
