Senior Front End Developer

We are seeking a talented senior developer to work with our teams in a leading global Tier 1 investment bank to join its London-based Equity Derivatives Pre-Trade Technology team.

This is a high-impact role where you'll help shape and deliver a strategic pre-trade Request-for-Quote (RFQ) and pricing platform used globally by Equity Derivatives and Delta One trading desks. You'll combine hands-on development with technical leadership, working closely with Front Office Sales, Trading, Quantitative Research and Technology teams to deliver business-critical solutions.

Responsibilities

• Develop high-quality, scalable software following engineering best practices.
• Partner directly with traders, sales teams and quants to deliver innovative front-office solutions.
• Drive architecture, technical direction and system enhancements across the platform.
• Mentor developers and contribute to a high-performance engineering culture.
• Champion observability, automated testing and CI/CD best practices.
• Work within an agile, fast-paced environment delivering frequent releases.

Requirements

• Extensive experience as a Senior Developer or Technical Lead.
• Strong front-end development expertise, particularly JavaScript and React.
• Proven experience building production-grade applications and distributed systems.
• Strong understanding of APIs, microservices and modern software architecture.
• Experience with automated testing, monitoring, observability and CI/CD pipelines.
• Excellent communication skills with the ability to engage directly with business stakeholders.

Nice to have

• Experience within Equity Derivatives, Delta One, Electronic Trading or Front Office technology.
• Development of applications handling real-time market data, orders or trading workflows.
• Experience with cloud-native and containerised environments.
• Exposure to Kubernetes and microservices architectures.
• Familiarity with AI-assisted development tools and LLM-powered engineering workflows.

We offer

• Opportunity to work on bleeding-edge projects
• Work with a highly motivated and dedicated team
• Competitive salary
• Flexible schedule
• Benefits package - medical insurance, sports
• Corporate social events
• Professional development opportunities
• Well-equipped office

About Us Grid Dynamics (NASDAQ: GDYN) is a leading provider of technology consulting, platform and product engineering, AI, and advanced analytics services. Fusing technical vision with business acumen, we solve the most pressing technical challenges and enable positive business outcomes for enterprise companies undergoing business transformation. A key differentiator for Grid Dynamics is our 8 years of experience and leadership in enterprise AI, supported by profound expertise and ongoing investment in data, analytics, cloud & DevOps, application modernization and customer experience. Founded in 2006, Grid Dynamics is headquartered in Silicon Valley with offices across the Americas, Europe, and India.