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Senior Proximity Developer (C#/.NET)
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Senior Proximity Developer (C#/.NET)
Senior Software Developer (VP) – Corporate Investment Banking (Front Office Technology | Global Markets)
📍 London
About the Role
Are you a hands-on developer with strong C#/.NET expertise and experience working directly with trading desks? This is a software proximity role where you’d be building and supporting real-time trading tools used by Front Office teams, collaborating closely with traders, quants, and sales in a fast-moving live trading environment.
This position is unique because you’ll work in a true front-office technology environment, developing applications used in live trading settings while taking full ownership from idea through to production and ongoing support. Success here requires working effectively in high-stakes, high-pressure banking environments.
Why This Role?
- Partner directly with traders, sales teams, and quant analysts
- Build and maintain applications in live trading scenarios
- Own the entire lifecycle—from concept to production and support
- Thrive in a fast-paced, high-impact financial institution
Key Requirements (Must-Have)
- Strong C#/.NET development experience (preference for .NET Core)
- Significant banking background with exposure to Front Office environments
- Deep understanding of derivatives and options, including:
- Greek terms (e.g., Delta, Gamma, Vega)
- Pricing mechanisms and yield curve manipulations
- Preferred: Hands-on experience in Commodities markets
- Mid-to-senior level experience with demonstrable ownership of complex systems
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Responsibilities
Business Collaboration & Requirements
- Work closely with traders to gather, analyse, and anticipate evolving business needs
- Translate business requirements into technical solutions for trading & risk-management applications
Software Delivery
- Design**, build, and maintain** custom proximity applications tailored to trading workflows
- Evaluate and propose multiple technical solutions to address business pain points
- Develop scalable, robust systems that meet high-availability and performance demands
- Provide hands-on support for business-critical trading tools
- Drive continuous improvement by:
- Implementing enhancements
- Fixing bugs
- Optimising architecture and performance
Technical & Architectural Leadership
- Contribute to architecture and technical design decisions
- Consult with quants, Market Operations (MO), BO teams, and global IT stakeholders to align technical infrastructure with trading requirements
Technical Environment
Key technologies and integrations:
- Languages & Frameworks
- C#/.NET Core
- Entity Framework (ORM)
- WPF or similar for desktop UI applications
- Angular (nice to have)
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Databases
- SQL Server
- MongoDB
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Infrastructure & DevOps
- Microservices architecture
- Containerisation and orchestration (e.g., Docker, Kubernetes)
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Market Data Integrations
- Bloomberg Terminal APIs
- Reuters integration
- Commodity price feeds and derivatives data
What Sets You Apart
✔ Familiarity with both technology and trading markets—you bridge the gap between IT and business ✔ Comfortable in fast-paced, high-pressure environments without losing focus ✔ Pragmatic and solution-minded; you prioritize actionable outcomes over rigid dogma ✔ Preference for hands-on engagement over siloed development—enjoying collaboration with end users and decision makers
The Opportunity
You’ll join a global Commodities IT team, dedicated to building a resilient and scalable trading ecosystem. The role offers direct visibility into critical trading processes and measurable impact across the business.
This is more than code—they want a technologist with financial market depth, eager to shape tools that enable and enhance live trading.
Apply Now
If you’re a mid-to-senior .NET developer with a banking background looking to transition (or deepen expertise) in Front Office Commodities technology, this is your chance. Apply today.
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