Senior Full-Stack Java / Angular Developer (Financial Applications)

About Gramian

About the Role
Our client is modernising business-critical financial processes that are currently handled through legacy tools such as Excel and Access, moving them into supported, scalable applications and microservices.

We are looking for an experienced Full-Stack Java / Angular Developer to work across the complete delivery lifecycle — from requirements analysis and solution design through development, testing, release, deployment, documentation, and production support. The role requires strong hands-on experience with Java, Spring Boot, Angular, automated testing, Git-based development, SQL, and microservices.

CONTRACT: Project-based engagement

COMMITMENT: 100%, full-time

LOCATIONS: Remote within the EU, with occasional on-site attendance in Luxembourg (approximately 5 working days per year)

Key Responsibilities

• Gather and clarify business requirements and analyse existing processes and applications.
• Design, develop, and support Java / Angular applications and microservices.
• Build and maintain backend services using Spring, Spring Boot, JPA, and Hibernate.
• Develop Angular frontends and integrate them with backend APIs.
• Write and maintain automated unit and integration tests.
• Execute system, integration, and performance testing and support UAT.
• Support release preparation, deployment, and change-management activities.
• Participate in Agile ceremonies and communicate directly with stakeholders.
• Maintain technical documentation, code documentation, and operational guides.
• Support application issues, release activities, risks, and change requests.

Requirements

• 7+ years of hands-on professional Java development experience, including production releases.
• Strong experience with Spring, Spring Boot, JPA, and Hibernate.
• Proven experience personally writing and maintaining automated unit and integration tests for Java applications.
• Strong hands-on experience with Angular and TypeScript / JavaScript, including backend API integration.
• Experience with Git-based team development, including branches, pull/merge requests, and code review.
• Strong knowledge of SQL, relational databases, XML, YAML, and JSON.
• Experience with microservices and modern application delivery practices.
• Experience using AI coding agents such as GitHub Copilot, Claude Code, or Codex for implementation, modification, review, or testing — not only code completion.
• Bachelor’s degree in IT or equivalent professional experience.
• Must be based within the EU and able to travel occasionally to Luxembourg.