Overview

🏢 Company | Global Investment Firm

👤 Position | Senior C# Developer

🎯 Impact | Market Data Ingestion, Analytics, and Distribution

📏 Size | Elite trading and tech teams across global markets

🌟 Skills | C#, Market Data, High-Performance Systems, Real-Time Infrastructure

📍 Location | London (On-site)

💻 Hybrid | On-site working (City-based HQ)

💰 Offer | Highly competitive base + Bonus (Annual Review)

💎 Benefits | 25 Days Holiday, Private Medical, Free Meals, Extensive Learning & Development

The Role

A global investment firm is seeking a Senior C# Developer to join their Market Data Technology function—an elite team responsible for building and maintaining the infrastructure that powers their global fixed income, FX, equity, and derivatives trading platforms.

You’ll work across real-time and historical data systems, with an emphasis on performance, resilience, and low-latency architecture. The role offers direct exposure to trading desks and quantitative teams, with the opportunity to shape the future of their market data stack.

What You’ll Be Working On

• Building and optimising real-time and historical data pipelines across cloud and on-prem environments
• Engineering data ingestion, validation, storage, and distribution platforms
• Partnering with traders, risk, and quant teams to deliver performance-critical solutions
• Leading architecture and contributing to system scalability under peak load conditions
• Mentoring junior engineers and supporting broader technology roadmaps

What Makes You a Great Fit

• 5+ years of experience in C# or Java, ideally within high-performance environments
• Deep understanding of market data infrastructure (feeds, storage, transformation, analytics)
• Strong knowledge of SQL Server and other database technologies (e.g. Redis)
• Familiarity with DevOps/Cloud tooling – Git, Docker, Kubernetes, CI/CD, AWS
• Excellent communication and collaboration skills across technical and trading teams

Bonus Points For

• Experience with rates, FX, bonds, equities, or derivatives
• Messaging systems such as RabbitMQ or similar
• Exposure to time-series models, quant libraries, or risk analytics

Why This Firm?

✅ Global investment firm with deep tech investment and small, high-impact teams

✅ Direct access to front-office stakeholders—real feedback, fast decisions

✅ Modern, performance-led tech environment solving hard data challenges

✅ Free onsite meals (breakfast, lunch, and dinner) and a host of benefits

✅ Excellent training and exposure not typically offered in larger corporates

📅 Interview Process |

Initial Screening → Technical Interview → Team Round → Final Interview with Leadership

📩 Interested?

We’re happy to share more detail about the environment, team structure, and growth path.

Referrals are welcome, and all conversations are handled in strict confidence.