C# .NET Developer – Front Office, FX & Orchestrade Systems

London - UK

Monthly Salary: Not Disclosed

Posted on: 11 hours ago

Vacancies: 1 Vacancy

Job Summary

Join MARGO in the UK (London)

MARGO is a tech-native consultancy delivering high value-added IT expertise to the financial services industry. We specialise in complex software engineering environments where performance robustness and scalability are critical: real-time systems low-latency architectures and high-throughput data processing

Joining MARGO means working in demanding Front Office and Trading IT environments while benefiting from a human-sized structure close follow-up and tailor-made training paths.

Business Context

You will join the FX Risk IT environment of a leading tier-1 investment bank. The team is responsible for designing and maintaining mission-critical systems supporting FX Cash (Forward Swap NDF) and FX Derivatives (Options Carbon Offsets).

The environment is built around the Orchestrade vendor platform and involves close collaboration with traders quants and risk managers to deliver high-performance trading solutions.

Role Overview

We are looking for a Senior C# / .NET Developer with a strong technical background to lead the development and integration of FX trading solutions. While expertise in the Orchestrade platform is highly desirable we are primarily seeking a high-caliber engineer who can master complex vendor APIs and provide technical leadership within a fast-paced agile culture.

Key Responsibilities

Design & Development

- System Evolution: Analyse design and develop high-performance C# solutions for FX cash and derivative products.

- Orchestrade Integration: Develop code to integrate Orchestrade with connected internal systems such as Sigma Barracuda and Deal Hub.

- Architecture: Advise on the best architectural approaches for integrating vendor products with service-oriented and micro-services concepts.

- Data & Middleware: Design clean interfaces and manage data flow using SQL and messaging middleware.

Engineering & Mentoring

- Technical Leadership: Provide mentoring and guidance to other developers on C# best practices and FX business logic.

- DeliveryOwnership: Take ownership of specific project deliveries applying agile methodologies and project management skills where required.

- Quality Standards: Drive high engineering standards through continuous integration and DevOps practices.

Production & Support

- Level 3 Support: Provide expert-level support for production Orchestrade systems and connected FX IT platforms.

- System Controls: Ensure all developments comply with internal systems controls and regulatory requirements.

Technical Environment & Skills

Essential Experience

- Expert C# / .NET: Substantial experience in software development with deep knowledge of ecosystem

- Investment Banking: Prior experience working in a Front Office environment alongside traders quants or risk managers.

- Backend & Middleware: Strong understanding of SQL/RDBMS and messaging middleware. - Architecture : Solid grasp of service-oriented and micro-services design concepts.

Valued Technical Exposure (Desirable)

- Orchestrade: Strong experience with Orchestrade features configurations and APIs.

- FX Domain: Knowledge of FX Forward Swap NDF and FX Options/Derivatives.

- Cross-Platform: Experience with C Java or FIX protocol.

- Other Vendors: Familiarity with Calypso Murex or similar trade management products.

Why Join MARGO

Tier-1 Exposure: Work at the heart of FX Risk IT for a major global bank.

Technical Growth: Highly challenging assignments bridging vendor platform expertise and bespoke C# engineering.

Career Progression: Clear paths for technical leadership and architectural ownership.

Mentorship Culture: Benefit from and contribute to a high-quality peer-review and mentoring environment.

Please note: We do not offer visa sponsorship for this position.

Interested Motivated Apply on our website or at emailprotected

We may use artificial intelligence (AI) tools to support parts of the hiring process such as reviewing applications analyzing resumes or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed please contact us.

Required Experience:

Join MARGO in the UK (London)MARGO is a tech-native consultancy delivering high value-added IT expertise to the financial services industry. We specialise in complex software engineering environments where performance robustness and scalability are critical: real-time systems low-latency architectur...