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Selby Jennings London

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Senior Backend Engineer (C# /Java - Data Platforms) - Risk Technology

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Senior Backend Engineer (C# /Java - Data Platforms) - Risk Technology

We are currently working with a leading buy-side investment firm in London that is scaling its Risk Technology Platform and looking to hire a Senior Backend Engineer into a highly impactful engineering team.

This is not a legacy application support role. The team is building and evolving a unified data API platform that powers risk, analytics, and decision-making across the business. You'll be working on large-scale data infrastructure, distributed systems, and high-performance backend services used by some of the firm's most critical functions.

What you'll be working on:

  • Building scalable backend platforms in C#/.NET
  • Designing and enhancing a firm-wide unified data API serving risk and analytics teams
  • Developing systems that process and distribute large volumes of data with high reliability and performance requirements
  • Working closely with Risk, Data Engineering, and Infrastructure teams on business-critical projects
  • Driving engineering best practices, architecture decisions, and platform scalability


Ideal background:

  • Strong backend engineering experience in C# or Java (candidates from Java backgrounds are welcome, provided they're happy to transition to C#)
  • Experience building data-intensive platforms and distributed systems
  • Hands-on experience with ClickHouse, Snowflake, or similar modern data technologies
  • Previous experience within financial services is essential
  • Exposure to Risk Technology, Risk Analytics, Market Risk, Counterparty Risk, PnL, Regulatory Reporting, or related financial data platforms

If you're a backend engineer with a passion for building scalable data platforms and want to work on impactful systems rather than legacy applications, feel free to apply for a confidential chat.

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