Spring Boot Experts in Hamburg
matched in minutes from over 15,000 CVs with the power of AI.Hire experts who build Spring Boot services, REST APIs, and cloud-ready back ends, and who can also support Spring Boot starters, security, and production hardening. Get fast, precise matching with vetted, available freelancers.
Meet FRATCH Experts in Hamburg, who have recently used Spring Boot
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.
Anastasiia Komarenko
Last position:
Senior Test Automation Engineer at E.ON
- Reviewing functional and technical requirements from a testing perspective
- Creating test cases and automated tests to validate requirements
- Performing manual and automated functional, end-to-end, and regression tests
- Documenting test results and tracking defects
- Using models like GPT-4, BERT, and Hugging Face Transformers for automated test case generation, analysis of test results, and improving test coverage, including bias checks and security reviews
- Techs: MS Office, Jira, Zephyr, Confluence, Tosca, stakeholder communication, Agile, Kanban, Scrum, OpenAI API, Hugging Face, PyTorch, LangChain.
Cornelius Höfig
Last position:
Solution Architect at STIHL
- Remodeling of the system architecture for an Azure-based platform aimed at rapid development of new functionalities
- Modeling of a staging concept for the fulfillment of diverse customer and QA needs
- Creation of requirements for, and oversight of, a proof-of-concept supplier project for a Flutter app with highly advanced BLE functionalities
- Comparison of multiple observability platforms for feasibility and requirements fit within the project environment
- Creation of a mobile app architecture based on domain-driven architecture
- Position of technical advisor and accountable solution architect for two development teams
- Execution of architecture reviews and alignment of changes with architectural expectations
- Skills & Technologies: Microsoft Azure , App Services, NodeJS Mono-repository, microservice architecture, domain driven design, self contained systems, requirements engineering, CI/CD, DevOps, API design, solution architecture
Thorsten Boock
Last position:
Senior Backend Engineer at VTG Rail Europe
traigo is VTG's digital rail logistics and fleet management platform. It processes large volumes of telemetry, mileage, geofence, sensor and wagon-movement events in near real time and provides operational services for rail logistics customers across Europe.
As part of Team Customer Selfcare, I worked on the design, implementation, optimisation and operation of large-scale backend services and event-driven processing pipelines — covering both feature development and operational ownership of business-critical production systems. I also regularly acted as first responder for production incidents, data inconsistencies and performance investigations across multiple distributed services.
- Design and implementation of event-driven backend services.
- Migration and replacement of legacy processing pipelines.
- Development of replay / rebuild mechanisms for large event datasets.
- High-throughput asynchronous event processing on SNS / SQS.
- Database and query optimisation for PostgreSQL and DynamoDB.
- Design of scalable read / write models and aggregation pipelines.
- Production troubleshooting and operational support.
- Performance tuning and infrastructure scaling.
- Design and stabilisation of integration and system tests.
- Technical concepts, architecture documentation, and cross-team collaboration.
- Support the further development of existing GitLab CI/CD pipelines
Geofence & Wagon Stay Processing
- Algorithm to detect vehicles within geofences (entry, exit, dwell time).
- Event sourcing with guaranteed chronological order within the affected time window.
- Refactored geofence event and wagon-stay processing logic for performance.
- Resolved race conditions and event-ordering problems in distributed services; server-side filtering, aggregation and optimised query pipelines.
- Repair and replay tooling for corrupted or inconsistent movement data.
Fleet Metadata & Mileage
- Modernised the service; migrated storage from DynamoDB to PostgreSQL to improve traceability and accelerate new features.
- Scalable mileage aggregation and replay mechanisms.
- Read / write models and optimised queries for high-volume mileage calculations.
Sensor & Telematics Integration
- Integrated telemetry and sensor processing pipelines.
- Snapshot and state-calculation logic for sensor systems.
- APIs and persistence models for wagon sensor data; data-quality improvements.
- Further development of a service using gRPC for intra-service communication.
Movement Segment Processing & Routing
- Migrated services to new movement-segment event streams.
- Built replay and rebuild tooling for segment correction.
- Optimised throughput and reliability for high-volume event processing.
Condition Monitoring & Wagon Analytics
- APIs and backend services for wagon condition monitoring.
- Brake-wear prediction processing and wagon analytics functionality.
- PostgreSQL views and optimised query models for operational dashboards.
Operational Reliability - First Responder
- Investigated production incidents and distributed-system failures; DLQ analysis, replay and operational recovery.
- Tuned database performance and AWS infrastructure under production load.
- Improved observability, monitoring and operational tooling.
- Supported rollout strategies, monitoring and post-deployment stabilisation.
Max Dietrich
Last position:
Senior Fullstack Engineer at Spiri.Bo GmbH
- Building new and improving existing features for a housing management platform that helps both landlords and tenants
- Technologies: Node.js, TypeScript, React.js, Next.js, PostgreSQL, Google Cloud, Docker, Kubernetes
Florian Wede
Last position:
Software Engineer at micimo GmbH
- Developing a professional scheduler for organizations with specific detailed requirements
- Evaluating different existing software solutions
- Creating a list of technical requirements
- Implementing these requirements
- Selected technologies: WebDAV, CalDAV, Rust, Baikal, OAuth, Keycloak
Rainer Diekmann
Last position:
Enterprise Architecture Management / Backend Software Developer at Polizei Hamburg
- Several projects in a police context
- Model and document police procedures/projects with Archimate (as-is/to-be) in the context of P20 (BKA)
- Create software architectures with microservices
- POC development with Springboot/Docker/Kubernetes
- Project size: 10 people
- Enterprise architecture management with Togaf and Archimate
- Backend software development Springboot
- DevOps with Kubernetes
- Implemented using: Java 17/21, Springboot 3, P20 architecture, Togaf, Archimate
Jonas Taulien
Last position:
IT Consultant at Bechtle AG
- Prequalified 200 demands within five weeks on the multi-cloud-commerce platform bechtle-clouds.com with three external consultants
- Served a dual role as project manager and requirements engineer for various enhancements
- Domain topics: reimplementation of Entra ID Sync, improvement of support processes, optimizations in the product catalog
- Demand and project management in ServiceNow
- Refinement of epics and stories with internal teams and external service providers
- Management of the external international service provider
David Adamo
Last position:
Senior SAP Commerce Cloud Developer at Freelancer
- Integration of SAP Commerce Cloud with SAP Cloud for Customer
- Creation and execution of unit and integration tests
- Error analysis and bug fixing
Özgür Ertekin
Last position:
Senior Software Developer at Cubic Transportation Systems
- Designed, implemented, and deployed two new microservice components, enabling new business functionalities and supporting regulatory compliance for enterprise clients.
- Ensured business continuity and system reliability within a high-transaction, microservice-based environment, taking ownership of backend systems under dynamic business conditions.
- Identified and refactored inefficient implementations, applying cost-benefit analysis to optimize performance, maintainability, and code quality.
Sridhar Huple
Last position:
SAP CX Consultant at Anonymous
- Stack: SAP Commerce 2011 (B2C).
- Migrating the data from Stibo system to SAP Commerce Cloud.
- Mapping the data from Stibo system to SAP Commerce Cloud.
- Integrating hot folders to support multiple countries and languages.
- Integrating validation tools for migrated data and generating validation reports.
Andreas Schmückert
Last position:
Solution Architect, Business Analyst, Consultant, Full-Stack Lead-Developer at 50Hertz Transmission GmbH
- Solution for micro-service and frontend solution for the electric grid
- Leading of development teams
- Technologies: React-Native, TypeScript, Kotlin, AWS, Infrastructure As Code, Serverless Architecture, React, NoSQL, GraphQL, Angular, Playwright, Python, ML(Ops), Kubernetes, Docker
Paul Köhler
Last position:
Senior Flutter Developer at Elea.health
- Further development of a complex laboratory information system
- Development of new features including design
- Close collaboration with company leadership
- Embedded in a top team with consistently high performance under time pressure
- Agile approach, Kanban
Oliver Langer
Last position:
Developer, Architect at libri GmbH
- Role: Developer, Architect
- Technologies: java, typescript, golang, spring (boot, web, security, data), Angular, AWS (OpenSearch, Aurora, SNS/SQS, CloudWatch, EC2, IAM), Kubernetes, Terraform, Helm, OAuth, Keycloak, CI/CD, gradlew, Liquibase, Test Driven Development, shell scripting
Raphael Vullriede
Last position:
Tech- / Team Lead / Architect / Engineer at Freelance IT Consultant
- Independent Software Engineer focusing mainly on complex backend architectures.
Discover over 15,000 top freelancers
Statistics of experts using Spring Boot
Aggregated from the professional profiles of matched freelancers.
Experience
20 years (Germany: 17 years)
Position duration
1.6 years (Germany: 1.9 years)
Positions per freelancer
15 (Germany: 12)
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Retail, Transportation
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
90% (Germany: 95%)
Master's degree or higher
43% (Germany: 55%)
Doctorate
10% (Germany: 7%)
Certifications per freelancer
2
Most common languages
German, English, French
Speak two or more languages
96%
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 Hamburg 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 Hamburg 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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
What it is
Spring Boot is the fast path into the Spring ecosystem for Java back ends. It reduces setup work and helps specialists ship web services, APIs, and internal applications with less configuration. Companies use it when they need stable services that are easy to run and extend.
Typical work
- REST and JSON APIs
- Microservices and service orchestration
- Authentication and authorization flows
- Batch jobs and scheduled tasks
- Production deployment and support
Spring Boot shows up in new product builds, platform rewrites, and modernization work. In Hamburg, it is a common fit for teams working on logistics, commerce, media, and enterprise systems that need reliable Java services.
Stack around it
Strong specialists work with the wider Spring stack, especially Spring MVC, Spring Data, Spring Security, and Spring WebFlux when reactive work is needed. They also use Maven or Gradle, JPA, test tools, and container tooling such as Docker and Kubernetes. Good work here is not just coding; it is wiring the service to the real operating environment.
When to bring in help
Bring in freelance expertise when a team needs to start a service quickly, fix a fragile code base, or prepare an app for production. It also helps when internal staff are busy and the project still needs clean structure, tests, and deployment support. Many companies want a specialist who can join remotely and work smoothly with a Hamburg team in English or German.
What strong specialists do
A solid Spring Boot professional writes clear code, keeps configuration under control, and avoids hidden complexity. They pay attention to error handling, security, observability, and testability. They also know when a simple Spring Boot setup is enough and when the architecture needs more discipline.
Project fit
Spring Boot is a strong match for customer portals, back-office tools, API layers, and services that connect to databases or external systems. It is also common in modernization projects where older Java applications need a cleaner structure. Companies usually look for specialists who can explain trade-offs clearly and deliver work that is easy to maintain.
Frequently asked questions
Need clarity? These are the questions we hear most often about Spring Boot.
Spring Boot is used to build Java back ends with less setup work. Companies bring it in for REST APIs, web applications, background jobs, and services that connect to databases or external systems. It is a practical choice when the team wants a clean starting point and a production-ready service structure.
Spring Boot adds auto-configuration and sensible defaults on top of the Spring ecosystem. That means less manual wiring and faster project start-up than plain Spring in many cases. For larger or older systems, a specialist still needs to know the underlying Spring pieces so the service stays understandable.
A strong Spring Boot specialist usually knows Spring MVC, Spring Security, Spring Data, and testing tools such as JUnit. Many projects also need knowledge of PostgreSQL, messaging, Docker, and cloud deployment. If the work is reactive, experience with WebFlux can matter as well.
A small internal tool may need only a focused Spring Boot specialist who can set up the service and keep it tidy. A larger platform, migration, or security-sensitive system needs someone who has handled production issues before. The real question is whether the person can design for maintainability, not just get code running.
Yes, most Spring Boot work can be done remotely because the core tasks are code, tests, reviews, and deployment coordination. For teams in Hamburg, on-site sessions can still help at the start of a project or during workshops. Good communication matters more than location for most delivery phases.
Ask which Spring Boot projects they have shipped, how they handle testing, and how they structure configuration and security. It also helps to hear how they deal with database access, integrations, and deployment. A good answer is concrete and shows decisions, not just tool names.
Look for clear API design, readable configuration, solid tests, and sensible logging. A strong Spring Boot professional explains trade-offs, keeps dependencies under control, and avoids unnecessary complexity. The code should be easy for another specialist to maintain after handover.
Yes, Spring Boot is still widely used for modern Java services because it balances speed and structure. It works well for new APIs, modular services, and systems that need a mature ecosystem. It is especially useful when a team wants standard patterns instead of building a custom framework.
The average hourly rate of freelancers in Hamburg, Germany who have used Spring Boot in their recent projects is 96 €, which corresponds to a daily rate of about 771 € based on an 8-hour working day.
Of the freelancers in Hamburg, Germany who have used Spring Boot in their recent projects, 90% hold at least a Bachelor's degree, 43% hold at least a Master's degree, and 10% hold a doctorate.
On average, freelancers in Hamburg, Germany who have used Spring Boot in their recent projects have 20 years of professional experience, with a single engagement typically lasting around 1.6 years.
The most common languages among freelancers in Hamburg, Germany who have used Spring Boot in their recent projects are German (100%), English (96%), and French (20%).
The most common industries among freelancers in Hamburg, Germany who have used Spring Boot in their recent projects are Information Technology (100%), Retail (68%), and Transportation (52%).
The most common business areas among freelancers in Hamburg, Germany who have used Spring Boot in their recent projects are Information Technology (100%), Product Development (96%), and Quality Assurance (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 
Munich 
Cologne 
Frankfurt 
Stuttgart 
Dusseldorf 
Dortmund 
Essen 
Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
