Senior Full Stack Developer (Front Office Trading)
6-Month Contract London / Hybrid Working Competitive Day Rate
The Opportunity
We are currently seeking an experienced Senior Full Stack Developer to join a high-performing Front Office technology team within a leading global investment banking environment.
You will play a key role in the development and enhancement of mission-critical electronic trading platforms supporting FX and Fixed Income products. Working within a globally distributed Agile team, you'll contribute to the evolution of a next-generation trading ecosystem, delivering scalable, high-performance applications used by traders, sales teams, and clients worldwide.
The Role
As a Senior Developer, you will be involved throughout the full software development lifecycle, contributing to architecture, design, development, testing, and deployment activities.
You'll work on a suite of front-office applications undergoing significant transformation, including platform modernisation, UI convergence, service modularisation, and scalability improvements to support future business growth.
Key Responsibilities
- Design, develop and maintain high-performance front-office trading applications.
- Participate in an Agile software development lifecycle including technical analysis, development, testing, code reviews and documentation.
- Collaborate closely with product owners, business stakeholders, developers and support teams.
- Contribute to architectural discussions and influence technology direction and best practices.
- Build and maintain backend services using .NET/C# or Java.
- Deliver scalable solutions capable of processing real-time market and trading data.
- Support platform modernisation, integration and migration initiatives.
- Create reference implementations and technical documentation.
- Conduct peer reviews and mentor less experienced developers.
- Work closely with production support teams during releases and ongoing maintenance.
- Drive continuous improvement across development practices, tooling, testing and delivery processes.
Required Skills & Experience
- Extensive software development experience within enterprise environments.
- Strong commercial experience with:
- HTML5
- CSS
- Angular or similar modern front-end frameworks
- Strong backend development experience with:
- C# / .NET
- OR Java
- Experience working with real-time and streaming data technologies.
- Knowledge of Reactive programming frameworks such as:
- RxJS
- Reactive Extensions
- Strong understanding of software engineering best practices, design patterns and architecture principles.
- Experience working in Agile/Scrum environments.
- Strong understanding of:
- Test-Driven Development (TDD)
- Automated testing practices
- Excellent communication and stakeholder engagement skills.
- Strong analytical and problem-solving capabilities.
- Front Office Investment Banking experience.
- FX, FX Options or Interest Rate product knowledge.
- Knowledge of real-time messaging and market data technologies.
- Application performance profiling and optimisation expertise.
- Experience designing low-latency, highly performant software solutions.
- Exposure to pricing, execution, trade capture or booking platforms.
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Full Stack Engineer (Oil/Gas/Energy/Power Background) in London employer: Lorien
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