Python Trading Support Engineer - Front Office Trading Technology

Python Trading Support Engineer - Front Office Trading Technology London (5 days onsite) International candidates welcome - Visa sponsorship and relocation support available £250,000 - £400,000 Total Compensation + Significant Upside Potential
We are partnering with a leading global hedge fund undergoing a major build-out of its next-generation Front Office trading technology stack across OTC markets. This is a high-impact, Front Office engineering role focused on mission-critical trade capture, execution workflows, and platform reliability used directly by global trading desks. The environment is fast-paced, highly technical, and tightly embedded within the investment process, with engineers working side-by-side with Traders and Portfolio Managers on systems that directly influence trading performance, efficiency, and scale.
This role is best suited to strong buy-side or Front Office engineers who enjoy combining deep Python engineering with real-time problem solving, platform ownership, and direct business interaction. This is emphatically not a traditional support role. The focus is on building, automating, and evolving trading systems driving resilience, scalability, and operational excellence across complex, high-volume environments.
You’ll sit at the intersection of engineering and trading, shaping execution workflows, automation, observability, and platform performance, within a culture that values proactive engineering ownership over reactive support.
International Hiring Note

• The firm is open to exceptional candidates based outside the UK, and is prepared to provide:
• Full visa sponsorship
• Relocation support packages
• Assistance with onboarding and cross-border transition
• Strong candidates with relevant Front Office trading technology experience will be considered regardless of current location.

The RoleYou will join a highly technical Front Office engineering group responsible for evolving and supporting a sophisticated OTC trading platform across multiple asset classes globally the role combines:

• Python software engineering
• Real-time trading systems engineering
• Platform reliability and optimisation
• Automation and tooling development
• Trade workflow analysis
• Production ownership
• Direct interaction with investment teams

What You’ll Be Doing

• Building Python-based automation, tooling, and engineering solutions for Front Office trading platforms
• Improving platform reliability, monitoring, observability, and operational tooling
• Working directly with Traders and Portfolio Managers to solve complex real-time trading problems
• Troubleshooting trade lifecycle, booking, and workflow issues across OTC products
• Developing scalable tooling to improve reconciliation, alerting, and operational efficiency
• Contributing to platform engineering initiatives focused on performance, resilience, and scalability
• Supporting production releases, testing, deployment validation, and system improvements
• Investigating production issues using SQL, Python, and system-level analysis
• Collaborating with infrastructure and engineering teams globally on platform evolution initiatives
• Operating within high-performance Linux/Unix production environments

Core Requirements

• Exceptional Python engineering capability this is the key focus of the role
• Strong experience building production-grade tooling, automation, or distributed systems in Python
• Previous Front Office trading technology experience within buy-side or sell-side environments
• Strong understanding of electronic trading workflows, trade lifecycle management, or booking systems
• Strong troubleshooting capability within complex, real-time distributed systems
• Excellent SQL and data analysis skills
• Linux/Unix expertise
• Strong engineering mindset with a focus on scalable, maintainable systems
• Ability to operate effectively in fast-paced, high-performance trading environments
• Strong communication skills with both technical teams and investment professionals

Highly Desirable

• Experience within hedge funds, proprietary trading firms, or systematic trading environments
• Knowledge of OTC or derivatives trading workflows
• Exposure to order management, trade capture, or risk platforms
• Experience improving platform observability, reliability, or operational tooling
• Additional scripting or automation experience
• Understanding of post-trade processing and reconciliations
• Exposure to market connectivity or pricing infrastructure

Why This Role

• High level of Front Office exposure and influence
• Strong engineering culture with significant technical ownership
• Opportunity to work on complex, business-critical trading systems
• Direct impact on trading workflows and operational performance
• Highly competitive compensation structure with meaningful upside potential
• Opportunity to work alongside top-tier engineering and investment talent
• Large-scale platform transformation programme with significant investment and visibility
• International mobility supported via visa sponsorship and relocation assistance