Clojure Experts in Germany
matched in minutes from over 15,000 CVs with the power of AIHire experts who build Clojure services, ClojureScript front ends, and data-heavy systems on the JVM. Get help with REPL-driven delivery, functional design, and production support from vetted, available freelancers.
Meet FRATCH Experts in Germany, who have recently used Clojure
Niko Schmuck
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.
Wolfgang Oellinger
Last position:
Fullstack Software Developer at Gematik
Development of the frontend of DEMIS (German Electronic Reporting and Information System for Infection Protection)
Technologies: Angular, Typescript, Single-SPA MicroFrontend, Java, Docker, Kubernetes, Postgres, REST
Prototype development of a compiler from HL7 FHIR to AngularFormly
Hendrik Levering
Last position:
Senior Modernization Engineer – Legacy Web App Performance & Refactoring (Energy Sector) at Levering IT GmbH
Re-architected a web application that had grown over years, modularizing tightly coupled components
Reduced response times from several seconds to <50 ms
Removed performance bottlenecks
Simplified architecture so internal teams can implement features on their own again
Andreas Steffan
Last position:
Lead Developer at Software
- Extended the document management system with a standard CMIS (Content Management Interoperability Services) interface
- Implemented CMIS core services like navigation, access rights, search, CRUD operations, and versioning in Java
- Implemented based on RESTful / OpenAPI services
- Delivered as a fat-jar and native container image
- Deployed on-premises and serverlessly as an Azure Container Application using Terraform
- Improved team autonomy through infrastructure engineering and short feedback loops
- Established observability with OpenTelemetry, Azure Monitor, and Azure Logic Apps
- Introduced Terraform and trunk-based development processes
- Ensured quality with BDD tests in C# using SpecFlow and Testcontainers
- Created Azure DevOps pipeline integration tests
- Introduced cloud deployment processes
- Trained staff in cloud and Terraform
Felix Bruckner
Last position:
Data Consultant & Technical Lead DataVerse at Lufthansa Technik AG
- Technical consulting for greenfield development of AVIATAR 2.0
- Designing data pipelines and data architecture within the DataVerse Data Lake
- Planning and implementing Data Lake zones, data governance, data retention, and recovery strategies
- Collaboration with the Data Architecture and Platform Team for infrastructure scaling and design
- Close cooperation with stakeholders across Lufthansa Technik, including requirements management
- Hands-on development of data pipelines using Spark Structured Streaming and Databricks
- Proofs of Concept (PoCs) for Graph-Links and real-time analytics
- Provisioning data for AI and ML projects (e.g., predictive analytics)
- Technical design and implementation of near-real-time pipelines based on business requirements
Vineeth Sathish
Last position:
Sr. Software Engineer at COCOLI.com
- Spearheaded general planning, prioritization, feature development and performance improvements of the Ruby on Rails e-commerce application; introduced continuous application profiling (monitoring for N+1s, p95s exceeding the threshold) and profiling memory for unexpected slowness, improved P95 latency from ~800ms to 500ms of the slowest endpoints.
- Introduced StatsD and Grafana dashboard to monitor and correlate business and developer metrics for early developer intervention, reducing the response time for broken vendor feeds from weeks to days.
- Integrated generative AI for improving product curation workflow, which improved curation time from hours to minutes.
- Introduced data warehousing using GCP as a datastore and Metabase as a visualizing tool, enabling teams to migrate from complex Excel files to robust SQL-backed dashboards.
- Designed and implemented standard webhooks and Shopify app for faster onboarding of product suppliers into the platform, which reduced vendor onboarding from weeks to hours.
- Deployed the website to Austria, Italy, Netherlands, France and Belgium regions.
- Translated the website to English and automated the curation process to translate to English, reducing curation time from 10 to 3 minutes.
Duc Tu Le Anh
Last position:
Freelance Software Developer at Source Group International - on behalf of Christoph Kroschke Holding GmbH & Co. KG
- Technologies used: Ubuntu Linux, IntelliJ, Gitlab CI/CD, Java 17, Kotlin, TypeScript, Angular, Maven, Spring Boot, PostgreSQL, Hibernate, JUnit, Mockito, Docker, AWS, Keycloak, Kafka
- Designed and developed a new in-house project in a microservice landscape
- Backend with Java/Spring Boot and frontend with TypeScript/Angular
- Deployed the microservices on AWS Fargate
Eli Romm
Last position:
Senior Backend Engineer at Bettermile
- Backend services development in Kotlin with Spring Boot using AWS CDK.
- Design and architecture of new features.
Jens Grassel
Last position:
Shijou GmbH
- Software architecture and backend development for a marketplace solution / eCommerce retail
- Used Scala, Python, http4s, Next.js, Elasticsearch, PostgreSQL, AWS
Discover over 15,000 top freelancers
Statistics of experts using Clojure
Aggregated from the professional profiles of matched freelancers.
Experience
21 years
Position duration
1.6 years
Positions per freelancer
15
Top business areas
Information Technology, Product Development, Business Intelligence
Top industries
Information Technology, Transportation, Retail
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
100%
Master's degree or higher
43%
Certifications per freelancer
1
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 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 Clojure
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
Clojure systems
Clojure is a functional language for the JVM, with a strong focus on immutable data, simple syntax, and interactive development. Companies use it for back-end services, event processing, APIs, data pipelines, and tools that need clear state handling and reliable concurrency.
What experts deliver
Clojure specialists usually work on greenfield services, hardening existing code, or extending a ClojureScript front end.
- API design and service development
- Refactoring legacy JVM code into smaller modules
- Event-driven and asynchronous workflows
- Browser apps with ClojureScript
Ecosystem
The stack often includes Leiningen or tools.deps, Ring, Compojure, Integrant, and libraries for JSON, HTTP, messaging, and testing. Strong professionals know how these pieces fit together and how to keep dependencies small, readable, and stable over time.
When to bring help
Freelance expertise helps when a team needs to rescue a slow codebase, add new services without creating state bugs, or review architecture before a release. It also helps when a German company wants a short-term specialist who can work remotely, join an internal JVM team, or support an English-speaking product group.
What strong specialists do
Strong Clojure professionals write code that is small, explicit, and easy to test. They use data first, push side effects to the edges, and keep a clean boundary between business logic and infrastructure.
Hiring signals
Look for clear experience with immutable data, REPL-based workflows, and production debugging on the JVM. Good experts can explain trade-offs between simplicity, performance, and maintainability, and they can move between Clojure and ClojureScript when the project needs both.
Frequently asked questions
Not sure where to start with Clojure? These answers cover the essentials.
Clojure is used for services, APIs, background jobs, data pipelines, and systems that need safe concurrency. Teams also use it for ClojureScript front ends when they want shared language concepts across the stack.
Clojure is usually chosen when a team wants a more functional style, less boilerplate, and stronger data-oriented design. Java and Kotlin are common alternatives, but Clojure often fits better for teams that value fast interactive development and simpler state handling.
Clojure and ClojureScript share the same language ideas, but they target different runtimes. Clojure runs on the JVM, while ClojureScript compiles to JavaScript for browser or Node-based work.
A strong Clojure specialist usually also knows the JVM ecosystem, HTTP APIs, testing, data modeling, and basic deployment work. For front-end work, ClojureScript, JavaScript interop, and browser tooling matter as well.
A small change set may only need a focused specialist, but a messy service or platform upgrade needs someone who understands architecture and production risks. Clojure work is often easiest when the freelancer can read existing code quickly and make small, safe changes.
Yes, most Clojure work can be done remotely because the language is text-based and pairs well with REPL-driven collaboration. For teams in Germany, occasional on-site workshops can help at the start, but day-to-day delivery is often remote-friendly.
Look for clean code, good tests, and the ability to explain design choices without jargon. A strong Clojure professional should show how they handle state, errors, and boundaries around external systems.
Ask whether the freelancer has shipped production Clojure systems, worked with the same ecosystem your codebase uses, and handled debugging in live environments. It also helps to ask how they structure collaboration with your internal team and how they document decisions.
The average hourly rate of freelancers in Germany who have used Clojure in their recent projects is 102 €, which corresponds to a daily rate of about 815 € based on an 8-hour working day.
Of the freelancers in Germany who have used Clojure in their recent projects, 100% hold at least a Bachelor's degree and 43% hold at least a Master's degree.
On average, freelancers in Germany who have used Clojure in their recent projects have 21 years of professional experience, with a single engagement typically lasting around 1.6 years.
The most common languages among freelancers in Germany who have used Clojure in their recent projects are German (100%), English (100%), and French (33%).
The most common industries among freelancers in Germany who have used Clojure in their recent projects are Information Technology (100%), Transportation (67%), and Retail (67%).
The most common business areas among freelancers in Germany who have used Clojure in their recent projects are Information Technology (100%), Product Development (89%), and Business Intelligence (56%).
Main locations of FRATCH Experts, who have recently used Clojure
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
