Senior Full Stack Engineer

ThoughtLabs Belgium; Brussel; On-site; EUR 120,000 - 180,000; Full time

Job summary

ThoughtLabs Belgium is seeking a highly experienced software professional with a strong background in Java and Spring to design and implement scalable, end-to-end data solutions. The role requires hands-on work across all stack elements, including REST APIs, SQL databases, and containerized deployments in an Agile environment.

You will contribute to data ingestion, transformation, validation, storage, and dissemination, collaborating with cross-functional teams to deliver robust digital services

Qualifications

• Fluency in English at CEFR C1+ level, written and spoken.
• At least 17 years of professional software development experience.
• At least 15 years Java with Spring experience.
• Minimum 5 years with relational databases and SQL.
• At least 2 years building responsive, user-friendly web interfaces.
• Proven REST API design and integration experience.
• Experience with CI/CD, Docker and cloud/container deployment.
• End-to-end data solution design across relational, analytical, and geospatial platforms.
• At least 2 years performing full stack development covering all major elements simultaneously.
• Experience in Agile/Scrum environments.
• At least 5 years working with information systems supporting regulatory policy across multiple countries.

Skills

Java development

Spring framework

REST APIs

CI/CD

Docker

SQL databases

Web interfaces

Agile/Scrum

English (CEFR C1)

Geospatial data platforms

Data pipelines

Tools

Docker

Job description

Very good knowledge of English language, both spoken and written, corresponding to Level C1 or higher of the Common European Framework of Reference for Languages (CEFR).

Specific expertise

The proposed candidate shall demonstrate:

• At least 17 years of professional software development experience.
• At least 15 years of recent hands-on experience developing Java applications with IoC frameworks such as Spring.
• At least 5 years of recent experience with relational databases and SQL.
• At least 2 years of recent hands-on experience developing maintainable responsive and user-friendly web interfaces.
• Demonstrated experience developing and integrating REST APIs.
• Demonstrated experience with CI/CD, Docker and cloud/container-based deployment.
• Demonstrated professional experience in designing and implementing end-to-end data solutions, including data ingestion, transformation, validation, storage, querying and dissemination across relational, analytical and geospatial platforms, with integration through APIs and reusable digital services.
• At least 2 years of recent experience in which they personally performed full stack development covering all the elements components above simultaneously.
• Proven practical experience working within Agile/Scrum or comparable.
• At least 5 years of demonstrated professional experience working with information systems and data supporting the implementation of regulatory policies, involving multiple countries, public authorities and economic operators, of which at least 2 years supporting implementation of environmental