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Software Engineering
.NET Engineer
Senior
United Kingdom
Hybrid
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We’re looking for a Senior Backend Developer with strong .NET expertise to join a high-impact engagement building trading platform capabilities for one of the world’s largest hedge funds. You’ll bring deep experience in C#, Kafka, and SQL, and be ready to work in a fast-paced, high-stakes financial services environment alongside experienced engineers.
What project we have for you
This role sits on the Order Management and Execution Management (OMS/EMS) platform for one of the largest hedge funds in the world. The client is expanding the range of asset classes supported by its trading systems, and is scaling up engineering capacity to deliver this. Engineers will initially be embedded within one of the client’s five project-aligned teams to learn the domain, codebase, and ways of working. Once ramped up, the team will transition to operating as a standalone delivery unit, working in parallel with the client’s other teams to accelerate onboarding of new asset classes.
What you will do
- Design, build, and maintain components of the OMS/EMS platform supporting the onboarding of new asset classes.
- Work embedded within one of the client’s five project teams initially, to learn the trading domain, architecture, and codebase.
- Transition into a standalone team delivering asset class onboarding work in parallel with the client’s other teams.
- Write high-quality, well-tested, production-grade code for systems operating in a live trading environment.
- Apply modern AI-assisted engineering practices (e.g. Claude Code, agentic development workflows) to accelerate delivery.
- Collaborate closely with client engineers, business analysts, and stakeholders to translate requirements into working software.
- Contribute to code reviews, technical design discussions, and continuous improvement of engineering practices.
What you need for this
- Strong hands-on experience with C# and the .NET ecosystem
- Practical experience with Kafka (streaming, messaging, event-driven architectures)
- Strong SQL skills and experience with relational databases
- Proven track record as a senior backend engineer delivering production-grade systems
- Comfortable working with modern AI-assisted development practices (e.g. Claude Code, agentic AI development)
Will be a plus:
- ReactJS experience or a full-stack profile
- Background in Financial Services (FSI), particularly trading, OMS/EMS, or capital markets
- Exposure to high-performance or low-latency systems
What it’s like to work at Intellias
At Intellias, where technology takes center stage, people always come before processes. By creating a comfortable atmosphere in our team, we empower individuals to unlock their true potential and achieve extraordinary results. That’s why we offer a range of benefits that support your well-being and charge your professional growth.
We are committed to fostering equity, diversity, and inclusion as an equal opportunity employer. All applicants will be considered for employment without discrimination based on race, color, religion, age, gender, nationality, disability, sexual orientation, gender identity or expression, veteran status, or any other characteristic protected by applicable law.
We welcome and celebrate the uniqueness of every individual. Join Intellias for a career where your perspectives and contributions are vital to our shared success.
Skills
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