Talan

FinTech

C#Developer

£60–85k ~AI est. London, England, United Kingdom FULL TIME Remote Friendly
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for mid candidates.

The Brief

“C# Developer at Talan. Skills: C# Development, Distributed systems, Real-time data processing, Risk analytics. Develop .NET/C# services. Maintain .NET/C# services”

Industry & Context.

FinTech
Problems you'll solve

Troubleshooting issues

What They're Looking For.

Must Have

Expertise in C# /.NET development, Experience with Redis Cluster, Solid understanding of TDD, Experience with CI/CD pipelines, Grounding in computer science fundamentals, Grounding in design patterns

Nice to Have

Experience with distributed systems, Experience with streaming, Experience with messaging, Knowledge of performance profiling, Knowledge of memory profiling, Experience optimising systems, Familiarity with modern CI/CD tools, Familiarity with modern CI/CD practices, End-to-end experience full SDLC

What You'll Do.

Develop .NET/C# services

Maintain .NET/C# services

Build real-time systems

Support real-time systems

Work on out-of-process services

Work on system integrations

Work on data materialisation

Drive Agile best practices

Unblock cross-team dependencies

How You'll Work.

Team & Collaboration

Global teams; Cross-team dependencies

Communication Scope

Stakeholder engagement

Process & Methodology

Agile, TDD

Full Job Description

C# Developer – London (Hybrid, 3 Days On-Site) Talan is looking for a talented and driven C# Developer to join a high-performing team in London. This is a hybrid role, with 3 days per week on-site, offering the opportunity to work on cutting-edge financial systems within a global markets environment. You will play a key role in building and enhancing a distributed, real-time P&L and risk analytics platform used by Fixed Income Rates and FX trading desks globally. This system delivers predictive and live P&L insights, supporting critical trading decisions across international markets. Working closely with developers, traders, and quantitative teams, you’ll contribute across the full development lifecycle from design and implementation to optimisation and deployment. What You’ll Be Doing * Developing and maintaining scalable .NET/C# services within a distributed streaming architecture * Building and supporting real-time data processing systems for P&L and risk analytics * Working on out-of-process services, system integrations, and data materialisation layers * Driving Agile best practices, including test-driven development (TDD) and automation * Collaborating with global teams across EMEA, NY, and APAC * Taking ownership of features and proactively proposing improvements * Troubleshooting issues and helping unblock cross-team dependencies Essential Skills & Experience * Strong expertise in C# / .NET development * Experience with Redis Cluster * Solid understanding of TDD and automated testing * Experience with CI/CD pipelines * Strong communication and stakeholder engagement skills * Ability to quickly learn and adapt to new technologies * Passion for automation, simplicity, and continuous improvement * Strong grounding in computer science fundamentals and design patterns * Collaborative team player with a proactive mindset Desirable Skills * Experience with distributed systems, streaming, and messaging (e.g. Rx .NET) * Knowledge of performance and memory profiling *

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