Spring Boot Experts in Stuttgart
matched in minutes from over 15,000 CVsHire experts who deliver Spring Boot APIs, microservices and secure enterprise applications with Spring Security, JPA and cloud tooling. Get precise, fast matching with vetted and available freelancers for remote or on-site work.
Meet FRATCH Experts in Stuttgart, who have recently used Spring Boot
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.
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
Alexander Z.
Last position:
Fullstack Developer and DevOps Engineer at Freelancer
- Developing the infrastructure and improving existing infrastructure: Jenkins, Gitlab Pipeline, OpenShift, Docker, Helm Chart, Kubernetes, Artifactory, CodePipeline, CodeArtifact, Python
- Documenting solutions in Jira/Confluence
- Supporting other colleagues in different technical areas
Emmanuel L.
Last position:
Founder and sole developer
- Development of a SaaS platform for esports teams with roles, scheduling, statistics, and billing
- Planning and implementation of the architecture, external API integrations, and operations
- Stack: Laravel 13, React 19, TypeScript, PostgreSQL, Redis, and Stripe
Robin S.
Last position:
Senior Cloud & Backend Engineer at Media-Saturn-Holding GmbH
- Implementing applications with Kotlin and Ktor as microservices
- Using MongoDB in the MongoDB Atlas cloud
- Asynchronous communication of services via Google Pub/Sub
- Using Kotest and MockK for unit tests
- Developing an administration frontend with TypeScript, React and Express.js
- Provisioning environments in GCP using Terraform
- Implementing CI/CD processes with GitHub Actions
- Operating scalable production and test environments in GCP with Kubernetes, Helm and Flux CD
- Monitoring environments with Prometheus and Grafana
- Providing BI data in the Google BigQuery data warehouse
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
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
Colin W.
Last position:
Founder & CTO at Savvi Learning GmbH
- Managing director (CTO/CFO) and founder of Savvi and Sparklyft
- Management of the entire product team incl. development team & content team
- Responsible for product strategy, go-to-market, project management, integration projects, business planning, etc.
Elvir B.
Last position:
Software Architect and Software Developer at Noctica IT GmbH
- NocTime time tracking, workshop planner, meal delivery service app
- LLM-based chat bot to control the NocTime time tracking system via voice input
- New and further development of customer solutions based on the Noctica SAS app framework
- Technologies: Java 17, Spring Boot, JPA, Hibernate, JavaScript, TypeScript, Angular 20, Angular Material, React, C#, Docker, Bash, Git, GitLab, RedMine, SQL, DBeaver, MariaDB, PostgreSQL, Python, TensorFlow, Ollama, various LLMs
Discover over 15,000 top freelancers
Statistics of experts using Spring Boot
Aggregated from the professional profiles of matched freelancers.
Experience
17 years
Position duration
1.6 years (Germany: 1.9 years)
Positions per freelancer
13 (Germany: 12)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Automotive, Banking and Finance
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
93% (Germany: 95%)
Master's degree or higher
43% (Germany: 55%)
Certifications per freelancer
2
Most common languages
German, English, French
Speak two or more languages
100% (Germany: 96%)
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 Spring Boot
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.
Spring Boot 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 (93%)
- Automotive (71%)
- Banking and Finance (71%)
- Manufacturing (50%)
- Government and Administration (50%)
- Transportation (43%)
- Healthcare (36%)
- Insurance (36%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What Spring Boot does
Spring Boot is an open-source framework for building production-ready Java applications on the Spring Framework. It reduces setup through auto-configuration, starter dependencies and embedded servers, so teams can create APIs, web services and backend systems with a consistent structure.
Where it runs
Companies use Spring Boot for business applications that need clear security, reliable integrations and long-term maintainability. It supports REST APIs, event-driven services, batch processing and modular platforms across finance, manufacturing, mobility, retail and public services. Stuttgart teams often use it in distributed product and enterprise environments.
- Customer and partner APIs
- Microservices and modular backends
- Internal workflow and data services
- Integration layers for enterprise systems
Ecosystem and tooling
Strong specialists work across the Spring ecosystem, including Spring MVC, Spring WebFlux, Spring Data, Spring Security and Spring Cloud. They commonly use Maven or Gradle, JPA with Hibernate, relational and document databases, messaging systems, Docker and Kubernetes. Testing with JUnit, Mockito and Testcontainers is also central to dependable delivery.
When companies bring in experts
Freelance expertise helps when a team is modernising a Java application, separating a monolith or building an API under a fixed delivery window. Specialists can establish project structure, define service boundaries, improve test coverage and connect external systems. They can also support incident resolution and technical handover.
- Moving from older Spring applications to Spring Boot
- Designing secure REST or reactive APIs
- Introducing observability and deployment automation
- Reviewing performance, resilience and maintainability
What strong professionals deliver
A capable Spring Boot professional connects application code with operational needs. They choose sensible abstractions, keep configuration manageable and design clear interfaces between services. They understand transactions, dependency injection, authentication, logging and failure handling rather than treating the framework as a collection of shortcuts.
They also document decisions and communicate trade-offs clearly. For Stuttgart-based work, teams may combine on-site workshops with remote implementation and expect fluent collaboration in English or German, depending on the project.
How to assess the fit
Reviewers should ask for examples of Spring Boot systems similar to the planned workload, not just general Java experience. Discuss API design, automated testing, database access, messaging, security and deployment practices in practical terms. A useful technical review explains how the expert would investigate an existing codebase before changing it.
The right specialist can describe risks, propose a realistic delivery path and leave the team more capable than before. Look for disciplined version control, meaningful tests, readable configuration and evidence of production support. These signals matter when the application must remain stable as requirements change.
Frequently asked questions
Questions about Spring Boot? Start with the answers below.
Spring Boot is used to build Java backend applications, REST APIs, microservices, batch processes and integrations. It provides conventions and production features that help teams move from a basic Spring Framework setup to a maintainable service.
Spring Boot has a broad ecosystem, mature documentation and extensive enterprise adoption. Quarkus and Micronaut can offer a leaner runtime model for some cloud-native workloads, while the right choice depends on startup needs, team knowledge, existing libraries and operational constraints.
A strong Spring Boot specialist usually brings Java, SQL, HTTP API design and automated testing skills. Experience with Spring Security, JPA, messaging, Docker, Kubernetes, cloud services and observability is valuable when the work extends beyond application code.
The need depends on the system’s complexity, risk and delivery stage. A small API may suit a focused Spring Boot professional, while a regulated platform or distributed migration calls for someone who has handled architecture, security, operations and production incidents.
Yes, much of Spring Boot work can be completed remotely through version control, issue tracking, reviews and shared environments. Stuttgart teams may still benefit from on-site workshops for discovery, architecture decisions or close collaboration with domain stakeholders.
Ask the Spring Boot expert to explain design choices around boundaries, transactions, testing, security and failure handling. Strong answers connect technical decisions to business risks and include a clear approach to understanding the existing codebase before making changes.
Spring Boot builds on the Spring Framework rather than replacing it. It simplifies configuration, dependency management and application startup while still using core Spring concepts such as dependency injection, application contexts and modular components.
Spring Boot freelancers should be ready to work with established delivery processes, security requirements and enterprise integration patterns. For Stuttgart engagements, teams may expect remote collaboration with occasional on-site sessions and clear communication in English, German or both.
The average hourly rate of freelancers in Stuttgart, Germany who have used Spring Boot in their recent projects is 105 €, which corresponds to a daily rate of about 839 € based on an 8-hour working day.
Of the freelancers in Stuttgart, Germany who have used Spring Boot in their recent projects, 93% hold at least a Bachelor's degree and 43% hold at least a Master's degree.
On average, freelancers in Stuttgart, Germany who have used Spring Boot in their recent projects have 17 years of professional experience, with a single engagement typically lasting around 1.6 years.
The most common languages among freelancers in Stuttgart, Germany who have used Spring Boot in their recent projects are German (100%), English (100%), and French (29%).
The most common industries among freelancers in Stuttgart, Germany who have used Spring Boot in their recent projects are Information Technology (93%), Automotive (71%), and Banking and Finance (71%).
The most common business areas among freelancers in Stuttgart, Germany who have used Spring Boot in their recent projects are Information Technology (100%), Product Development (93%), and Project Management (64%).
Main locations of FRATCH Experts, who have recently used Spring Boot
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 
Dortmund 
Essen 
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
