An exceptional opportunity has emerged for a highly experienced Senior C# / .NET Developer to join a globally recognized financial institution operating at the forefront of risk management and securities lending technology.

This contract role is tailored for technically elite software engineers who possess deep financial systems expertise alongside advanced backend engineering capability. The successful candidate will contribute directly to the development of sophisticated platforms supporting large-scale trading operations, exposure calculations, and mission-critical financial workflows within highly regulated environments.

Professionals who excel in high-performance engineering ecosystems and enjoy solving analytically demanding problems will find this opportunity both technically stimulating and professionally rewarding.

Job Details

Position: Senior C# / .NET Developer
Industry: Financial Services – Risk & Securities Lending
Location: London
Work Structure: Hybrid / On-Site
Employment Type: 6-Month Contract
Rate: £585 per day (Inside IR35)

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Job Overview

This role places you at the core of systems engineering for complex financial infrastructure. You will help architect and maintain scalable platforms responsible for high-throughput data processing, trading workflows, collateral management, and risk analytics across global financial operations.

Your expertise in Object-Oriented Programming, distributed systems, and API architecture will directly influence operational resilience, compliance readiness, and platform performance within a fast-moving institutional environment.

Key Responsibilities

The selected developer will take ownership of critical engineering and financial workflow initiatives, including:

Designing, developing, and maintaining scalable enterprise-grade applications using C# and .NET Core
Building robust RESTful APIs supporting trading, securities financing, and risk-processing systems
Implementing exposure calculations, risk limit monitoring, and financial reporting mechanisms
Collaborating closely with Quantitative Analysts, Risk Managers, and Front Office stakeholders to translate complex business requirements into reliable technical solutions
Participating in architectural discussions focused on scalability, resilience, and platform modernization
Contributing to high-performance systems handling large-scale transactional and financial datasets
Supporting CI/CD workflows and engineering best practices across the development lifecycle

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Required Technical Expertise

The organization seeks professionals with substantial experience operating within complex, heavily regulated financial environments.

Ideal candidates should demonstrate:

Ideal Candidate Profile

This role is particularly suited for delivery-oriented engineers who combine technical precision with strong commercial awareness.

Successful candidates will typically possess:

Advanced analytical thinking and structured problem-solving abilities
Confidence working across cross-functional trading and risk teams
Strong communication skills capable of simplifying intricate technical concepts
Passion for building resilient, scalable, and performance-optimized financial systems
Ability to thrive inside collaborative Agile engineering cultures