MARGO

C# / .NET Developer – Front Office, Electronic & Low Latency Trading Systems

MARGO

full-time

Posted on:

Location Type: Hybrid

Location: London • United Kingdom

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Tech Stack

.NET

About the role

  • Design, develop and maintain high-performance C# / .NET applications
  • Work on real-time data processing including market data, pricing, orders, analytics and risk calculations
  • Implement concurrency and parallel programming patterns adapted to performance-sensitive systems
  • Participate in system design, architecture discussions and technical specifications
  • Continuously optimise performance including latency, throughput and memory usage
  • Contribute to the full software lifecycle: design, development, testing and release
  • Produce clean, maintainable and well-tested code
  • Participate in sprint planning, estimations and technical reviews
  • Collaborate closely with developers, quant and infrastructure teams
  • Provide 3rd line support on production systems when required
  • Participate in production releases including occasional out-of-hours interventions
  • Contribute to system stability, monitoring and incident prevention

Requirements

  • Strong experience as a C# / .NET Developer in performance-sensitive environments
  • Proven background in real-time or high-throughput systems
  • Solid understanding of concurrency, parallelism and memory optimisation
  • Experience working in Front Office, Trading or Risk IT environments
  • Strong production mindset and system ownership
  • Clear communication and structured problem-solving skills
Benefits
  • Access to multi-asset Front Office, Trading and Electronic Trading environments
  • Highly technical and challenging engineering assignments
  • Strong emphasis on skill development and long-term career progression
  • Human-sized consultancy with close support and high-quality missions

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
C#.NETreal-time data processingconcurrencyparallel programmingperformance optimisationsoftware lifecycleclean codetestingsystem design
Soft skills
strong production mindsetsystem ownershipclear communicationstructured problem-solving