Description
About the Role
We're looking for a Senior System Design Engineer to join a key financial project in Brussels. In this role, you'll translate complex business needs into scalable technical solutions, support the operation of mission-critical platforms like Fidessa, Fusion, UL Bridge, and help drive continuous improvement in a dynamic trading environment.
This is a hands-on engineering role, ideal for someone with strong system architecture knowledge, troubleshooting expertise, and a keen interest in trading systems or financial markets.
Key Responsibilities
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Translate business requirements into robust technical designs, considering trade-offs and feasibility.
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Validate compliance and ensure implementation aligns with specifications.
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Analyze and optimize system performance, capacity, and scalability.
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Investigate and resolve incidents, perform root cause analysis, and produce technical documentation.
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Contribute to on-call support for critical systems.
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Maintain and upgrade key trading-related platforms: Fusion, Fidessa, and UL Bridge.
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Collaborate with internal teams and third-party vendors on technical issues and system improvements.
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Support and troubleshoot FIX protocol-based messaging (experience with FIX is a plus).
Must-Have Skills & Experience
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5+ years in system design, software integration, or IT infrastructure roles.
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Strong skills in troubleshooting, incident management, and root cause analysis.
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Solid technical writing/documentation skills.
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Knowledge of JavaScript, Jira, and open systems (Linux/Unix).
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Excellent communication and problem-solving abilities.
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Independent, proactive, analytical, and team-oriented mindset.
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Fluent in Dutch and English (both required).
Nice to Have
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Experience with: Confluence, IBM MQ, MySQL, or Sophis.
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Background in trading platforms, capital markets, or financial technology.
Profile
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Bachelor's or Master's degree in IT, Software Engineering, Business Management, or equivalent experience.
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Proven ability to act as a bridge between business users and technical application teams.
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Self-driven, solution-oriented, and eager to grow in a financial/trading environment.