VirtueTech Recruitment Group
Front Office C# .NET Developer | ETRM Integration | Azure | Energy Trading | £105,000 | Hybrid, London
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Front Office C# .NET Developer | ETRM Integration | Azure | Energy Trading | £105,000 | Hybrid, London
Full Stack C# .NET Developer | Post-Trade Operations | ETD | Up to £140,000 | AWS | Financial Services | Hybrid, London
A Full Stack C# .NET Developer is required to join a high-performing operations technology team within one of London's most technology-driven financial services firms, operating across global commodity and derivatives markets.
This is a full stack role with a strong C# .NET backend focus, working on operationally critical systems that support the post-trade processing of Exchange-Traded Derivatives (ETD). You'll be working across the full stack from React front-ends through to C# .NET services and data layers in a highly data-driven environment where accuracy, traceability and consistency are paramount.
This is a rare opportunity for a strong technologist to move into financial services at a firm that genuinely treats technology as a core part of its business rather than a support function. Domain knowledge is not a prerequisite; what matters most is full stack engineering depth, a methodical approach to data and a desire to work on complex, high-integrity systems. With a global footprint spanning 40+ offices, access to 60 exchanges, and a team of over 3,200 people, the investment in engineering talent, modern tooling and cloud-native infrastructure is substantial and ongoing.
The Team
The ETD Operations Technology team sits at the heart of the firm's post-trade ecosystem. They design and maintain the systems responsible for:
- Building and maintaining full stack C# .NET and React applications supporting post-trade operational work.
- Processing and validating high-integrity transactional and position data across C# .NET services.
- Supporting deliveries processing, segregation movements and settlement workflows.
- Handling commission and fee calculations and operational adjustments.
- Ensuring exchange-traded activity is accurately reflected across internal platforms and client accounts.
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The environment is data-intensive and operationally critical, built on modern C# .NET, React and AWS infrastructure. The team works closely with operations stakeholders, business analysts and QA to deliver reliable, production-grade solutions that meet strict regulatory and compliance standards.
Role Details
- Salary: Up to £140,000 + Benefits
- Tech Stack: C# | .NET | React | TypeScript | AWS | Docker | Terraform | SQL | NoSQL | CI/CD
- Working Arrangement: Hybrid working | London
As a Full Stack C# .NET Developer, you will:
- Design, build and test full stack C# .NET and React applications within a post-trade processing environment.
- Develop modern, responsive React front-ends that surface complex operational and position data to business users.
- Develop and maintain high-integrity C# .NET backend services handling positions, balances, cash movements and fee calculations.
- Work with large volumes of structured transactional and position data, ensuring accuracy and consistency across downstream systems.
- Contribute to architecture and design decisions across the full stack.
- Write clean, maintainable and testable code across C# .NET and React, adhering to BDD/TDD practices.
- Ensure solutions meet regulatory and compliance requirements across applicable exchanges and clearing frameworks including FCA, SEC, CFTC and NFA.
- Support and improve CI/CD pipelines and DevOps practices across the full stack.
- Liaise with operations stakeholders and business analysts to translate requirements into robust full stack solutions.
- Work closely with compliance and risk teams to ensure data integrity, traceability and auditability across all systems.
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Required Experience
- Strong commercial experience as a Full Stack C# .NET Developer.
- Hands-on experience building React front-ends, ideally with TypeScript.
- Experience working with high-volume transactional or position data in an operationally critical environment.
- Experience with Docker and containerisation.
- Experience with NoSQL or relational databases, with an understanding of data integrity and consistency patterns.
- Infrastructure as Code experience, ideally Terraform.
- Solid understanding of modern CI/CD and DevOps practices.
- Experience with AWS or equivalent cloud technology.
- Knowledge of BDD/TDD methodologies.
- Experience working in Agile/Scrum delivery environments.
Desirable Experience
- Experience working in a regulated financial services environment with exposure to FCA, SEC, CFTC or NFA compliance requirements.
- Knowledge of Exchange-Traded Derivatives (ETD) operations or post-trade systems.
- Familiarity with deliveries processing, settlement workflows, reconciliation processes or client money segregation.
- Experience building or maintaining data pipelines handling margin outputs, cash movements or fee calculations.
- Exposure to JavaScript and/or TypeScript in a full stack context.
- Experience with Node.js and/or GraphQL.
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