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Investigo

Java Software Engineer

Investigo
Belgium · Contract · Mid-Senior

JAVA DEVELOPER – BRUSSELS – 12 MONTHS+


My client is seeking a highly skilled Freelance Java Developer to join a fast-paced financial services environment, delivering secure, scalable microservices.


Responsibilities:

  • Design, develop, and maintain secure, high-performance microservices using Java (Spring Boot preferred)
  • Implement RESTful APIs with a strong focus on reliability, scalability, and low latency
  • Apply secure coding practices
  • Integrate with internal and external systems, including payment gateways and third-party APIs
  • Contribute to architecture decisions, promoting microservices best practices
  • Work closely with DevOps to support CI/CD pipelines and cloud deployments
  • Ensure compliance with data protection and regulatory requirements (e.g., GDPR, PSD2 where applicable)


Experience:

  • Strong commercial experience with Java (8+) and frameworks such as Spring Boot / Spring Cloud
  • Proven experience building and deploying microservices architectures
  • Solid understanding of security principles, including authentication (OAuth, JWT), encryption, and secure API design
  • Familiarity with containerisation (Docker) and orchestration tools (Kubernetes preferred)
  • Experience with cloud platforms (AWS, Azure, or GCP)
  • Strong knowledge of relational and/or NoSQL databases (e.g., PostgreSQL, MongoDB)
  • Fluent English speaking


Start date: ASAP

Duration: 12 months+

Location: BRUSSELS (2 days per week expected in office)


If you’d like to be considered for this role please send your CV to [email protected] or call +3228083006. Please pass this advert along to anyone else who might be interested.

Key Skills

Ranked by relevance

microservices java spring boot cloud restful apis kubernetes postgresql docker devops nosql oauth gdpr cicd aws
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Posted
Apr 08, 2026
Type
Contract
Level
Mid-Senior
Location
Brussels Region
Company
Investigo

Industries

Staffing Recruiting Financial Services

Categories

Information Technology

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