SonarQube Experts in Stuttgart
in minutes from 15,000 CVs with vetted, available specialistsHire experts who set up code quality gates, tune rule profiles, and integrate SonarQube into CI pipelines and pull request checks. They help teams keep technical debt visible and release standards consistent, with fast and precise matching to vetted, available freelancers.
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 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
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: 91%)
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 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 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 19 Sep 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 used to inspect source code for bugs, code smells, security issues, and maintainability problems. Companies bring in SonarQube specialists when they want clearer quality gates before merges and releases.
Common use cases
- Set up project scans for Java, JavaScript, Python, C#, and other stacks
- Define quality profiles and quality gates
- Review pull requests with SonarQube Server or SonarCloud
- Track technical debt and recurring issue patterns
Ecosystem and setup
SonarQube usually sits alongside CI tools, Git providers, and build systems such as Maven, Gradle, npm, or Jenkins. Strong specialists know how to wire scanners into pipelines, manage tokens and permissions, and keep analysis reliable across branches and repositories.
When freelancers help
Freelance experts are useful when a team needs a clean rollout, a migration from SonarQube Community to a paid edition, or help fixing noisy rules and false positives. In Stuttgart, this often matters for software teams working with enterprise systems, embedded code, or regulated delivery workflows.
What strong specialists do
They read findings in context, not just as tool output. Good SonarQube professionals explain which issues block delivery, which ones need refactoring, and how to make the results useful for developers without slowing the team down.
Deliverables that matter
A solid engagement often ends with a working scan setup, documented quality standards, and a dashboard the team actually uses. The best experts leave behind clear rules, stable pipeline checks, and a process your team can maintain after the engagement ends.
Frequently asked questions
Quick answers to the questions that come up most around SonarQube.
SonarQube is used to analyze source code for bugs, security issues, code smells, and maintainability risks. Teams use it to enforce quality gates before code reaches production and to keep technical debt visible during everyday development.
SonarQube is the self-managed option, while SonarCloud is the hosted service from the same vendor. Companies choose SonarQube when they want more control over infrastructure, data handling, or internal network access.
A SonarQube specialist helps when the first setup is blocking pipelines, when too many warnings are noisy, or when quality rules need to match the team’s real codebase. They are also useful during migration, multi-repo rollout, or CI standardization.
A strong SonarQube expert usually knows Git workflows, build tools, and CI systems such as Jenkins or GitLab CI. It also helps if they understand at least one major language in the codebase, plus basic security and refactoring practices.
Yes. SonarQube is commonly used across Java, JavaScript, TypeScript, C#, Python, and other mainstream stacks, as long as the scanner and plugin support fit the project. The key is not the language alone, but how well the rules are tuned for that codebase.
Not always. Many SonarQube tasks can be done remotely, especially rule tuning, pipeline integration, and dashboard cleanup. On-site work can help when the team wants workshop-style alignment with local stakeholders or needs closer support during rollout.
Look for someone who can explain why a rule matters, not just where a warning appears. A reliable SonarQube professional shows experience with quality gates, CI integration, and false-positive handling, and can turn findings into actions the team will follow.
Typical SonarQube deliverables include scan configuration, quality profiles, quality gates, and CI integration notes. In stronger engagements, you also get cleanup recommendations, branch and pull request checks, and documentation your team can keep using.
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 
Nuremberg Countries:
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Philipp Thomaschewski
FRATCH CEO
