SonarQube Experts in Stuttgart
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Meet FRATCH Experts in Stuttgart, who have recently used SonarQube
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 placement platform that directly connects relatives of people in need of care 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 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 the sole 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 using presigned URLs to verify 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 the placement process.
- Development of 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
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
Alban T.
Last position:
C/C++ Developer on AIX Systems for SAP Kernel System Integration at IBM Research and Development
- AIX/Linux system administrator: deployment of LPARs (Logical Partitions) for SAP Kernel Development
- C/C++ SAP kernel development and integration to SAP HANA Database
- C/C++ programming and software integration, support for SAP kernel on AIX system; development and testing on SAP VDI
- Example: development of the ABEC Tool (AIX Build Environment Checker) to create SAP build environments for debugging process and benchmarking
- Benchmarking and test execution of SAP kernels (test from the communication to the SAP HANA Database and to SAP NetWeaver) on AIX
- Automate the SAP kernel build via Jenkins and benchmarking over crontab jobs
- New C/C++ compiler design and testing (based on Clang++ and LLVM)
- Customer ticket handling to resolve SAP kernel bugs and build failures
- SAP kernel development with Rust programming language, migrating some sub-kernel projects from C/C++ to Rust because of Rust's memory safety model, ownership system, and concurrency features
- Refactoring selected components in Rust and integrating them with existing C++ codebase via FFI
Discover over 15,000 top freelancers
Statistics of experts using SonarQube
Aggregated from the professional profiles of matched freelancers.
Experience
14 years (Germany: 19 years)
Position duration
1.3 years (Germany: 1.8 years)
Positions per freelancer
14
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Automotive, Information Technology, Banking and Finance
Certification focus areas
Information Technology, Operations, Product Development
Bachelor's degree or higher
100% (Germany: 92%)
Master's degree or higher
50% (Germany: 55%)
Certifications per freelancer
2 (Germany: 3)
Most common languages
German, English, Spanish
Speak two or more languages
100% (Germany: 97%)
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 Stuttgart 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 Stuttgart using SonarQube
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.
SonarQube 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 (83%)
- Banking and Finance (67%)
- Transportation (67%)
- Manufacturing (50%)
- Government and Administration (50%)
- Healthcare (33%)
- Insurance (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Code quality control
SonarQube is a continuous code inspection platform from SonarSource. It analyzes source code for bugs, vulnerabilities, security hotspots, code smells and duplication, then presents the findings in projects, portfolios and quality gates. Teams use it to make code quality visible before changes reach production.
Where it fits
SonarQube supports quality checks across backend services, web applications, mobile systems, APIs and shared libraries. It can run in self-managed environments or through SonarQube Cloud, depending on governance, infrastructure and data requirements. Its analyzers cover widely used languages and connect quality decisions to pull requests and release workflows.
Ecosystem and tooling
Strong specialists work across the surrounding delivery toolchain, not only inside the SonarQube interface. Their work may include:
- Integrating scanners with Jenkins, GitHub Actions, GitLab CI or Azure DevOps
- Configuring quality profiles, gates, exclusions and branch analysis
- Connecting SonarQube with Maven, Gradle, npm, MSBuild and container workflows
- Aligning findings with testing, dependency scanning and secure coding practices
When companies need help
Freelance expertise is useful when a company is introducing SonarQube, replacing inconsistent review rules or scaling analysis across many repositories. Specialists also help when pipelines have become slow, findings are poorly prioritized or teams need a practical remediation plan. In Stuttgart, this can support automotive, industrial, software and enterprise teams working on distributed products, with remote or on-site collaboration agreed around delivery needs.
What strong specialists deliver
A capable professional starts with the languages, build systems and risks that matter to the product. They create maintainable quality profiles, distinguish actionable findings from noise and explain technical debt in terms that delivery teams can use. They also document decisions, protect pipeline performance and make ownership of remediation clear.
Choosing the right expertise
Look for evidence of complete SonarQube delivery rather than dashboard configuration alone. Relevant experience includes analyzer setup, custom rules, quality gate design, pull request decoration, branch strategy and CI troubleshooting. Ask how the specialist measures improvement, handles false positives and works with existing engineering and security teams. Clear communication in English is essential for distributed work; German may help when collaborating closely with local Stuttgart stakeholders.
Frequently asked questions
Quick answers to the questions that come up most around SonarQube.
SonarQube performs automated static code analysis and reports bugs, vulnerabilities, security hotspots, code smells and duplication. Companies use it to enforce quality gates, guide code reviews and track technical debt across repositories and delivery pipelines.
SonarQube complements human code review by providing repeatable analysis on every relevant change. It can overlap with specialist security scanners or linters, but its value is the shared view of maintainability, reliability and security rules across supported codebases.
A strong SonarQube specialist usually understands CI/CD, Git workflows, build systems and automated testing. Experience with Jenkins, GitHub Actions, GitLab CI, Azure DevOps, Maven, Gradle, npm or MSBuild is often useful, as are secure coding and dependency management practices.
The required depth depends on the scope. A focused setup may need configuration and pipeline knowledge, while an enterprise rollout calls for experience with governance, portfolio structure, custom rules, migration and adoption. Ask for examples involving similar languages, repositories and release controls.
Yes. SonarQube is well suited to remote collaboration because configuration, analysis results and pipeline changes can be reviewed in shared repositories and dashboards. Stuttgart-based companies should define access, meeting cadence and whether occasional on-site workshops or German-language communication are needed.
Look for a SonarQube specialist who can explain why rules, exclusions and quality gates were chosen. Ask how they reduce false positives, keep scans reliable, connect findings to remediation ownership and show improvement without turning the dashboard into a target by itself.
SonarQube is commonly used as a self-managed product, giving teams control over hosting, upgrades and network boundaries. SonarCloud is the managed SonarSource service, so the choice depends on operational ownership, compliance needs, integration requirements and preferred administration model.
A SonarQube freelancer may assess an existing setup, connect scanners to CI/CD, tune quality profiles, design gates or introduce pull request analysis. They may also clean up legacy findings, create governance guidance and train teams to act on results rather than merely collect them.
The average hourly rate of freelancers in Stuttgart, Germany who have used SonarQube in their recent projects is 106 €, which corresponds to a daily rate of about 851 € based on an 8-hour working day.
Of the freelancers in Stuttgart, Germany who have used SonarQube in their recent projects, 100% hold at least a Bachelor's degree and 50% hold at least a Master's degree.
On average, freelancers in Stuttgart, Germany who have used SonarQube in their recent projects have 14 years of professional experience, with a single engagement typically lasting around 1.3 years.
The most common languages among freelancers in Stuttgart, Germany who have used SonarQube in their recent projects are German (100%), English (100%), and Spanish (33%).
The most common industries among freelancers in Stuttgart, Germany who have used SonarQube in their recent projects are Automotive (100%), Information Technology (83%), and Banking and Finance (67%).
The most common business areas among freelancers in Stuttgart, Germany who have used SonarQube in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (83%).
Main locations of FRATCH Experts, who have recently used SonarQube
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 
Dusseldorf Countries:
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Get in touch with the FRATCH team and we will get back to you within 4 hours.
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Philipp Thomaschewski
FRATCH CEO
