Grails Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used Grails
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.
György Kelemen
Last position:
Senior Fullstack Developer at Rockstardevelopers GmbH
- Development of a test system
- Establishment of the architecture using Scala/Java for the backend and Swing for the frontend
- Setup of CI/CD pipelines with Jenkins for continuous integration, including automated builds
- Participation in the Scrum team, including daily stand-ups, sprint planning, and retrospectives
- Technology environment: Scala, Swing, EJB, JPA, Scrum, PostgreSQL, Mercurial
Stefan Baust
Last position:
Senior Full Stack Developer / Co-Founder / CTO / Head of Development at Netprint Development & Solutions GmbH
Overall technical responsibility for innovative SAP Customer Checkout solutions at leading clients such as Aramark, Consortium Gastronomie, Feinkost Käfer, TSG Hoffenheim, and VfB Stuttgart. Full support from requirements analysis to implementation and support.
Successful conception and development of the NDS SmartPOS platform ("Läufer App"):
Designed the software architecture and implemented it according to Modern Android Development principles.
Led a small development team (1 Android expert, 1 working student) with a 50% in-house development share.
Integrated various payment SDKs (S-Payment S-POS, VR Payment, CCV), enabling clients to achieve significant cost savings by reusing existing contracts.
Successfully rolled out to multiple major clients, resulting in demonstrably increased efficiency of sales staff.
Independently developed and successfully implemented critical infrastructure components:
Reporting server (SQL, JasperReports): Measurable reduction in accounting effort by eliminating daily manual transfers into the ERP system.
ZVT plugin: Solely implemented the serial protocol with Java/Netty over TCP/IP, saving several thousand euros per location and successfully deployed in multiple Bundesliga stadiums.
Completely in-house development of specialized plugins and server applications for custom functionality extensions of SAP Customer Checkout:
Waiter Teams Plugin: Allows waiters to work and settle bills in teams.
SQL reporting: Realized from conception to full documentation independently.
RFID payment solution for employee cards: Responsible for the complete development cycle.
Integration with reservation services: Designed seamless connections to Luca and other services, implemented together with a team member.
Direct technical on-site support for clients, including rapid troubleshooting in real-time environments with high transaction volumes and close coordination with stakeholders to continuously improve the systems based on practical experience.
Andreas Steffan
Last position:
Lead Developer at Software
- Extended the document management system with a standard CMIS (Content Management Interoperability Services) interface
- Implemented CMIS core services like navigation, access rights, search, CRUD operations, and versioning in Java
- Implemented based on RESTful / OpenAPI services
- Delivered as a fat-jar and native container image
- Deployed on-premises and serverlessly as an Azure Container Application using Terraform
- Improved team autonomy through infrastructure engineering and short feedback loops
- Established observability with OpenTelemetry, Azure Monitor, and Azure Logic Apps
- Introduced Terraform and trunk-based development processes
- Ensured quality with BDD tests in C# using SpecFlow and Testcontainers
- Created Azure DevOps pipeline integration tests
- Introduced cloud deployment processes
- Trained staff in cloud and Terraform
Houssem Ben Zid
Last position:
Senior Backend Developer at Novobit Group
- Designed and developed scalable backend systems using Java, Spring Boot, and AWS services.
- Contributed to HWP (Human Work Planning), a modern, cloud-based planning and optimization system for assembly and manufacturing processes across the Volkswagen Group. The platform provides a standardized digital solution for planning, optimizing, and supporting the simulation of human work and production process flows.
- Helped modernize legacy applications by migrating them to modular, distributed architectures, improving scalability and maintainability.
- Collaborated with cross-functional teams across Germany, the Czech Republic, and Tunisia in a SAFe Agile environment.
- Utilized Bitbucket for version control, Bamboo for CI/CD pipelines, and JIRA for project and issue tracking.
- Integrated AWS services including EKS for container orchestration, Batch for job scheduling, and CloudWatch for monitoring.
Tech Stack: Java, Spring Boot, AWS (EKS, Batch, CloudWatch), React, SQL, Bitbucket, Bamboo, JIRA
Duc Vi
Last position:
Software Developer (Freelancer/External) at Jungheinrich AG
- Development of a future 3D configurator for creating Jungheinrich pallet racks in all variations as part of Jungheinrich AG's digitization campaign
- Development and extension of the UI with Configura Magic
- Implementation of 3D rendering and interactions
- Preparation of data for structural calculations
- Parts list management and dynamic price calculation
- Database maintenance for individual parts and assemblies
- Support in integrating with SAP
- Languages used: C# and Configura Magic
Florian Finke
Last position:
Web Developer at KaiTech IT-Systems GmbH
- Web developer for digitizing business processes, specializing in the AI software Parashift and development using JobRouter
Henning Pankratius
Last position:
Siemens
- Developed a reporting API with RESTful services and Spring Boot
- LDAP integration
- Migrated services to AWS
- Bootstrap
- Frontend development with Angular 14
- JBoss
- DynamoDB
- S3
- Athena
Discover over 15,000 top freelancers
Statistics of experts using Grails
Aggregated from the professional profiles of matched freelancers.
Experience
19 years
Position duration
1.8 years
Positions per freelancer
16
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Banking and Finance, Education
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
100%
Master's degree or higher
71%
Doctorate
14%
Certifications per freelancer
2
Most common languages
German, English, French
Speak two or more languages
100%
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 Germany 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 Germany using Grails
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
Web apps
Grails is a JVM framework for building web applications with Groovy. It is used for internal tools, customer portals, admin back ends, and API-driven products. Teams choose it when they want fast delivery without leaving the Java ecosystem.
What they deliver
- CRUD-heavy business applications
- REST services and JSON APIs
- Data access with GORM
- Views, forms, and workflow screens
Grails also fits projects that need Spring Boot integration, authentication, and structured conventions. In Germany, it often appears in enterprise environments that want maintainable systems and clear handover.
Ecosystem
The core stack usually includes Groovy, GORM, Spring, Hibernate, and Gradle. Strong specialists also know testing with Spock, security setup, and plugin-based extensions. That mix matters when an app needs to grow beyond a simple prototype.
When to bring in help
Companies bring in freelance Grails expertise when a platform is hard to maintain, a release is blocked, or a feature set must move faster. They also need help with legacy Groovy code, upgrades, performance issues, and API refactoring. This is common when a team in Germany wants outside support without long onboarding.
What strong specialists do
- Keep Grails conventions clean and predictable
- Work well with existing Spring services
- Spot data model and query problems early
- Write tests that protect business logic
Good professionals think about delivery, not just code. They document trade-offs, keep controllers thin, and make sure the application stays easy to extend.
Signs you need one
If your Grails app feels slow to change, has fragile tests, or mixes old patterns with newer services, it is time to bring in an expert. The same applies when you need a safe upgrade path from older Grails or Groovy versions. A strong freelancer can stabilize the codebase and help your team ship with confidence.
Frequently asked questions
Curious about Grails? Here are the answers that come up again and again.
Grails is used to build web applications, REST APIs, and internal business systems on the JVM. It is a good fit for CRUD-heavy products, workflow tools, and admin areas where conventions save time. Many teams also use it for services that need to sit close to existing Spring-based systems.
Grails gives you more opinionated conventions out of the box, especially for web apps and data access. Spring Boot is broader and more manual, which can be better for highly customized architectures. Teams often choose Grails when they want faster delivery with less boilerplate.
Grails is the framework, while Groovy is the language it is built around. A strong specialist usually knows both, plus the surrounding JVM stack. If you only need Groovy scripting, that is different from maintaining a full Grails application.
A strong Grails professional usually knows Groovy, Spring, GORM, Hibernate, Gradle, and Spock. API design, database modeling, and test automation matter as well. For older systems, experience with migration and refactoring is especially useful.
A small greenfield app can start with one solid Grails specialist, especially if the scope is clear. Legacy systems, integration work, or upgrade projects usually need someone who has handled real production code before. The harder the data model and release process, the more valuable that experience becomes.
Yes, Grails work is often easy to do remotely because the important inputs are code, tests, and clear requirements. That said, some teams in Germany prefer a mix of remote and on-site time for planning, workshops, or handover. The best setup depends on how much legacy context the project has.
Look for clean domain modeling, sensible controller structure, and a strong test suite in Grails projects. Good specialists explain trade-offs, not just syntax, and they should be comfortable discussing GORM queries, plugin choices, and upgrade paths. Past work on production systems is more useful than generic framework claims.
Grails can still be a strong choice when you want JVM stability, fast CRUD delivery, and a convention-driven web stack. It is less attractive if your team wants a very small surface area or a fully custom architecture. The best fit is usually a business application with clear domain logic and a need to move quickly.
The average hourly rate of freelancers in Germany who have used Grails in their recent projects is 96 €, which corresponds to a daily rate of about 766 € based on an 8-hour working day.
Of the freelancers in Germany who have used Grails in their recent projects, 100% hold at least a Bachelor's degree, 71% hold at least a Master's degree, and 14% hold a doctorate.
On average, freelancers in Germany who have used Grails in their recent projects have 19 years of professional experience, with a single engagement typically lasting around 1.8 years.
The most common languages among freelancers in Germany who have used Grails in their recent projects are German (100%), English (100%), and French (50%).
The most common industries among freelancers in Germany who have used Grails in their recent projects are Information Technology (88%), Banking and Finance (75%), and Education (50%).
The most common business areas among freelancers in Germany who have used Grails in their recent projects are Information Technology (100%), Product Development (100%), and Project Management (63%).
Main locations of FRATCH Experts, who have recently used Grails
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 Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
