Apache Kafka Experts in Stuttgart
matched in minutes from over 15,000 CVsHire experts who design event-driven architectures, connect Kafka with cloud and data platforms, and build reliable streaming pipelines. FRATCH matches you quickly and precisely with vetted, available freelancers for your Apache Kafka project.
Meet FRATCH Experts in Stuttgart, who have recently used Apache Kafka
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.
Salim C.
Last position:
Cloud / Systems Architect
- Development and introduction of operations processes
- Preparation of complete documentation packages (including incident management and operations support) to meet compliance requirements
- Introduction of a workshop on IaC (Infrastructure as Code)
- Technical consulting for the project security concept (ISMS)
- Installation and operation of Kubernetes clusters on AWS, on-prem, and Azure
- Hybrid cloud architecture design (on-prem, Hetzner, AWS)
- Analysis and troubleshooting of incidents and system outages
- Network adjustments for firewall rules, gateways, OpenVPN settings, and IPsec tunnels (pfSense)
- Technical consulting on Bitbucket, Jenkins, and GitLab CI/CD pipelines
- Consulting on Ansible deployments and infrastructure automation
- Consulting on building a scalable system in the cloud (AWS / Azure)
- Technologies / Tools: Ansible, Terraform, AWS, Azure, VPN, pfSense, Jenkins, Bitbucket, Kubernetes, GitLab Runner, ISMS, Golang, Prometheus, Grafana, S3, Lambda, RDS, ECS, Cognito, OIDC, Harbor, MinIO, Postgres, Redis, Keycloak, Ceph, Proxmox, CloudFormation, PostgreSQL, Flux CD, Hetzner, IONOS, Sonatype Nexus Repository, Entra ID, Dex IdP, Pulumi
Artyom N.
Last position:
AI Automation Engineer & Solution Architect at Technology Research Project
Designed and developed an AI-powered automation platform using n8n to analyze social media niches, identify target audiences, and automate marketing strategy generation. The solution combined AI agents, workflow orchestration, and data analysis to automate research processes and generate data-driven insights.
- Designed and implemented complex automation workflows using n8n
- Developed AI-powered analysis agents for market and audience research
- Integrated multiple APIs and AI services into automated workflows
- Built automated market, competitor, and target audience analysis pipelines
- Leveraged Large Language Models (LLMs) for information summarization, classification, and prioritization
- Containerized and deployed the platform using Docker
Technologies: n8n, AI Agents, OpenAI APIs, Prompt Engineering, LLMs, Docker, Linux, REST APIs, Webhooks
Will O.
Last position:
Solution Architect at Stuttgart Police Authority
Designing the migration strategy for WLS applications to the BKA cloud and Stack IT
Creating a hybrid cloud for internal testing and development with Kubernetes
Transforming the IT landscape from a legacy monolithic architecture to a cloud-based architecture
Integrating new CI/CD processes using Azure Pipelines
Quadrupled the throughput of personnel security checks
Migrated personnel security clearance applications to Docker-based applications
Built CI/deploy pipelines with Azure DevOps
Environment: Java Spring Boot, Kubernetes, Oracle WebLogic, OpenID, Camunda, JUnit, TOGAF
Maik S.
- Development of a new generation of Spring Boot microservices for an archiving system on OpenShift, monitoring, security analyses
Stack: Java, Spring Boot, Kafka, Vaadin, OpenShift 4.x, Maven, Artifactory, Jenkins, Git/Github, GitHub Copilot, GitOps, CI/CD, Kargo/ArgoCD
Lothar H.
Last position:
Solution Manager for PoC investigation and for replacing and refining an existing cloud and IoT power plant control system at Shell AG and NEXT Kraftwerke GmbH
- Investigating the PoC and replacing and refining an existing cloud and IoT power plant control solution for certificate management of renewable energy plants (solar, wind, biomass, etc.) for the largest European renewable energy network operator, including examining the field IoT devices and their integration and network connections, aiming for automated PKI key management.
- Messaging with Kubernetes for large API-connected enterprise applications
- Risk and attack vector analysis, software quality & bug assessments
- Agile workload scheduling via Jira & Confluence
- Evaluation of pub/sub message streams for MQ and Kafka.
- Various tests with “best design approaches” for resilience patterns like circuit breaker designs, throughput measurement and monitoring, bulkhead governors – for robust EA design
- Integration of API management with IBM's API Connect to Kubernetes for platform-agnostic microservices API management designs. Google Apigee
- Solution health check approaches for load burst situations + remedy
- Research and evaluation of potential sub-service providers in the coordinating role as solution manager. CIS20 controls.
- DREAD and STRIDE security assessments.
Benjamin S.
Last position:
Design and implementation of a new cloud service at Porsche AG
- Design of a new cloud service
- Requirements Engineering
- API Design (REST API, Kafka)
- Consulting on architecture, feasibility and effort estimation
- Implementation of a microservice architecture
- Implementation of a Spring Boot web service
- Development of REST APIs including business and persistence logic
- Kafka consumers and producers
- Various Excel upload/download scenarios
- Change Data Capture
- Cloud provisioning with IaC/Terraform
- Go-live with 30,000 users
- Operation, support and bug fixing for other services
Environment/tools: GitLab, JIRA, Confluence, IntelliJ, Spring Boot, Java, Docker, Terraform, AWS ECS, Postgres, Apache Kafka, SAP Datasphere, JUnit, Debezium, Apache POI, Hibernate, JPA, Testcontainers
Achille C.
Last position:
Backend/Frontend Developer at ITZ-Bund
Development of a microservice application for calculating postings on accounts
Development of backend components with Java or JEE, Quarkus, Kafka, Rest API
Development of the test component with mocking frameworks (Mockito)
Development of integration test components
Creation of OpenAPI specification format
Configuration of CI/CD pipeline
Development of frontend components with React
Design, further development and optimization of system structures
Code review
Java Corretto 21, JEE, Quarkus, Golang
Reactive programming with Spring WebFlux, Project Reactor
Git, Azure DevOps for CI/CD pipeline, YAML, Json Swagger UI, Postman, Rest OpenAPI, Kafka Streams, Kafka Connect, Log4J
Microservices, Jira, Confluence, MySQL, Docker, Kubernetes (deployment via Helm charts)
Spring Security, OAuth 2, JWT, Sonarqube
IntelliJ, Maven, logging framework Splunk, Agile method Scrum, Nexus, Vaadin V24, build tool Vite
React, React.JS, Node.js, Jess/JavaScript, Tailwind CSS, Agile method Scrum, accessibility BITV, Playwright
Marcel S.
Last position:
Technical Lead / Lead Developer at REWE digital
- Due to an organizational restructuring towards product-based teams, the implementation of a Data Mesh in the area of Digital Supplier Management (DSM) was decided.
- A highly available real-time Data Mesh for providing large volumes of data via Kafka and REST to other products.
- New development of a core supplier management software in a (micro-)service-based architecture with a modern tech stack.
- Technologies/Tools:
- Java 21
- Spring Boot
- Angular
- TypeScript
- Go
- MapR
- Kafka
- Docker
- Google Cloud Platform (GCP)
- Kubernetes
- Helm
- GitLab CI
- Maven
- JUnit
- Mockito
- WireMock
- Cypress
- Keycloak
- OAuth 2.0 & OpenID Connect
- Humio
- Nexus
- Artifactory
- SonarQube
- Renovate
- Git
- Postman
- IntelliJ
Ivan G.
Last position:
Technical Lead at Porsche Digital GmbH
- Contributed to the design of the new financial services integration layer and moderated the architectural discussions
- Oversaw the security concept and approval of the application
- Prepared infrastructure setup and best practices for the Kotlin backend
Ahmed F.
Last position:
Senior Lead Engineer (Freelance) at Atruvia AG
- Development of a wealth management application for investing in foreign currencies
- Full-stack development with Angular, Spring Boot, OpenShift, Oracle DB, Kafka
- Design and implementation of a microservice architecture
- Integration into Atruvia's BWS system and connection of multiple interfaces between Atruvia and DZ Privatbank
- Greenfield development of the application from the ground up
- Technical responsibility for architecture and interface design
- Close collaboration with business units and external stakeholders
Discover over 15,000 top freelancers
Statistics of experts using Apache Kafka
Aggregated from the professional profiles of matched freelancers.
Experience
18 years
Position duration
1.5 years (Germany: 2.7 years)
Positions per freelancer
14 (Germany: 13)
Top business areas
Information Technology, Product Development, Operations
Top industries
Automotive, Information Technology, Banking and Finance
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
100% (Germany: 91%)
Master's degree or higher
55%
Certifications per freelancer
3 (Germany: 2)
Most common languages
German, English, Spanish
Speak two or more languages
100% (Germany: 98%)
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 Stuttgart 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 Stuttgart using Apache Kafka
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.
Apache Kafka experts industry focus
See which industries our matched freelancers work in most often — every figure is calculated live from the freelancers on FRATCH.
- Automotive (100%)
- Information Technology (91%)
- Banking and Finance (82%)
- Transportation (64%)
- Government and Administration (45%)
- Insurance (36%)
- Manufacturing (36%)
- Aerospace and Defense (27%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Event streaming
Apache Kafka is a distributed event streaming platform for moving, storing and processing continuous flows of data. Companies use it to connect services, capture business events and make information available to applications without tight point-to-point dependencies. It supports durable event logs, replayable data and high-throughput communication across complex systems.
Common applications
Kafka appears in systems that need reliable, near-real-time data movement:
- Event-driven microservices and service integration
- Customer activity, order and payment event streams
- Log, metric and application telemetry pipelines
- Data integration between operational and analytical systems
- Real-time processing for fraud, alerts and recommendations
Ecosystem and tooling
Strong Kafka specialists work across producers, consumers, topics, partitions, consumer groups and delivery guarantees. Their surrounding skills often include Kafka Connect, Kafka Streams, Schema Registry, Avro or Protobuf, REST interfaces and stream processing. They may also use Confluent Platform, managed cloud Kafka services, Kubernetes and observability tools.
When expertise matters
Companies bring in freelance Kafka expertise when an existing integration is becoming difficult to operate or when a new event-driven platform must be designed carefully. Specialists help define event contracts, partitioning strategies, retention policies and failure handling before implementation creates costly dependencies. In Stuttgart, this can support connected manufacturing, mobility, logistics and enterprise data initiatives while keeping collaboration remote or on site.
Delivery and operations
A capable professional can turn Kafka requirements into a working, maintainable system. Typical deliverables include topic and access designs, producer and consumer services, connector configurations, stream-processing applications, deployment automation and monitoring dashboards. Quality also depends on capacity planning, security, schema evolution, disaster recovery and clear runbooks.
Choosing a specialist
Look for practical evidence of operating Kafka under changing traffic, partial failures and evolving data contracts. Ask how the professional handles ordering, duplicate events, reprocessing, consumer lag and incompatible schemas. Strong specialists explain trade-offs clearly, test recovery paths and connect Kafka decisions to the wider application, data and cloud architecture. For Stuttgart teams, confirm whether the collaboration style and language fit the project and its stakeholders.
Frequently asked questions
Curious about Apache Kafka? Here are the answers that come up again and again.
Apache Kafka is used to publish, store and process streams of events between applications and data systems. It is common in microservice integration, telemetry, operational data pipelines and real-time business processes where reliable, replayable data matters.
Apache Kafka is built around a durable, replayable event log and distributed throughput, while RabbitMQ is often chosen for direct message delivery and flexible routing. Traditional queues can be simpler for task processing, but Kafka is a strong fit when many consumers need the same event history or when streams must be processed repeatedly.
A strong Apache Kafka specialist should understand distributed systems, Java or another suitable programming language, APIs, databases and cloud infrastructure. Useful adjacent skills include Kafka Connect, Kafka Streams, Schema Registry, Kubernetes, security configuration and observability.
The right level depends on the system’s criticality, scale and operational complexity. A smaller integration may need a professional who can configure producers, consumers and connectors, while a core event platform calls for proven skill in partitioning, recovery, security, schema evolution and performance troubleshooting.
Apache Kafka work is often suitable for remote collaboration because architecture, configuration, code and monitoring can be reviewed online. On-site sessions in Stuttgart can still help when the project involves factory networks, legacy infrastructure, security workshops or close coordination with local teams.
A capable Apache Kafka freelancer should clearly distinguish at-most-once, at-least-once and effectively-once processing. They should explain how acknowledgements, retries, idempotent producers, transactions and consumer offset handling affect duplicates, ordering and recovery.
Review the event model, topic ownership, schemas, access controls and operational documentation. A good Apache Kafka implementation includes meaningful monitoring for consumer lag and failures, tested recovery procedures, safe schema changes and clear reasoning behind partition and retention choices.
Common Apache Kafka challenges include uneven partition distribution, growing consumer lag, incompatible schemas, connector failures and unclear ownership of topics. Experienced specialists address these with capacity planning, validation, alerting, controlled replay procedures and disciplined event governance.
The average hourly rate of freelancers in Stuttgart, Germany who have used Apache Kafka in their recent projects is 107 €, which corresponds to a daily rate of about 858 € based on an 8-hour working day.
Of the freelancers in Stuttgart, Germany who have used Apache Kafka in their recent projects, 100% hold at least a Bachelor's degree and 55% hold at least a Master's degree.
On average, freelancers in Stuttgart, Germany who have used Apache Kafka in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 1.5 years.
The most common languages among freelancers in Stuttgart, Germany who have used Apache Kafka in their recent projects are German (100%), English (100%), and Spanish (27%).
The most common industries among freelancers in Stuttgart, Germany who have used Apache Kafka in their recent projects are Automotive (100%), Information Technology (91%), and Banking and Finance (82%).
The most common business areas among freelancers in Stuttgart, Germany who have used Apache Kafka in their recent projects are Information Technology (100%), Product Development (91%), and Operations (64%).
Main locations of FRATCH Experts, who have recently used Apache Kafka
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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Munich 
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Frankfurt 
Dusseldorf 
Nuremberg Countries:
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