C# Market Data Developer

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 aSenior C# Developerto join theirMarket Data Technologyfunction-an elite team responsible for building and maintaining the infrastructure that powers their globalfixed income, FX, equity, and derivatives tradingplatforms.

You'll work acrossreal-time and historical data systems, with an emphasis onperformance, 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 optimisingreal-time and historical data pipelinesacross 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 inC# or Java, ideally within high-performance environments
• Deep understanding ofmarket data infrastructure(feeds, storage, transformation, analytics)
• Strong knowledge ofSQL Serverand other database technologies (e.g. Redis)
• Familiarity withDevOps/Cloud tooling- Git, Docker, Kubernetes, CI/CD, AWS
• Excellent communication and collaboration skills across technical and trading teams

Bonus Points For

• Experience withrates, FX, bonds, equities, or derivatives
• Messaging systems such asRabbitMQor similar
• Exposure totime-series models, quant libraries, or risk analytics

Why This Firm?

Global investment firm withdeep 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.