Software Engineer

Software Engineer – Contract Assignment

Financial Services Sector – B2B contract

• Start date: 12 October 2026
• Duration: up to 660 working days (approx. 3 years)
• Contract terms: terminable every 3 months by either party, with 1 month's notice
• Working regime: Full-time, Monday–Friday, standard working hours (7h36/day)
• Telework: up to 50% allowed
• Location: Brussels, Belgium

Do not wait to apply after reading this description a high application volume is expected for this opportunity.

Assignment Overview

We are sourcing an experienced Software Engineer for a long-term consultancy assignment with a well-established financial institution based in Brussels. The consultant will join a development team responsible for the design, development and evolution of a strategic internal platform supporting the organisation's core supervisory activities.

Working within a multidisciplinary Agile team, the consultant will contribute to secure, scalable and maintainable software solutions, in line with the client's architectural standards and engineering practices.

Responsibilities

• Develop and design application components, in close collaboration with team members
• Analyse technical problems and propose effective solutions
• If required, act as technical lead on a development project, including technical release management
• Collaborate closely with business analysts, UX designers, IT architects and operations teams
• Coach team members on development frameworks, tools, and best practices
• Contribute to well-structured, documented and tested software components
• Produce REST API specifications, architecture/technical design documents, and data models
• Support CI/CD configuration, code reviews, and technical recommendations
• Provide operational, support, maintenance and knowledge-transfer documentation as needed

Required Technical Skills

Excellent knowledge of:

• Angular & TypeScript
• ASP.NET Core & C#
• Code review practices
• Development tools and DevOps practices
• Cloud solution architecture
• Data design (conceptual/logical data models, ERD, etc.)
• Design of non-functional requirements (security, performance, query optimisation)
• Design of RESTful endpoints (HTTP methods, URLs, versioning, JSON, metadata, documentation)
• Scrum/Kanban and team-oriented ways of working
• Quality coding standards

Good knowledge of:

• Azure
• MS SQL Server
• Modelling, diagramming and documentation practices

Profile Requirements

• Master's degree in Software Engineering, Computer Science, Civil Engineering, or an equivalent qualification
• Deep, hands-on experience across the technical areas listed above
• Ability to quickly adopt and coach others in new technologies as needed
• Strong communication skills
• High degree of autonomy, technical expertise, reliability, and commitment to software quality

Language Requirements

• French or Dutch: Proficient level in one of the two, Independent level in the other
• English: Proficient level