Senior Full Stack Engineer

Senior Full Stack Engineer

London - Hybrid

Up to £95,000

My client, one of the largest global interdealer brokers, are looking for an experienced Senior Full Stack Engineer to join a newly formed engineering team working on the next generation of a large-scale cloud-native platform.

This is a fantastic opportunity to work with modern technologies in a highly collaborative environment, helping to build and evolve mission-critical systems that support global trading and market infrastructure. You'll play a key role in shaping technical direction, mentoring engineers and delivering scalable solutions using modern engineering practices.

Key Responsibilities

Design, develop and deliver high-quality full stack applications using TypeScript and React alongside modern Back End technologies
Build scalable APIs and distributed services that support low-latency, event-driven applications
Contribute to architectural discussions, driving improvements across microservices and cloud-native solutions
Take ownership of features throughout the full software development life cycle, from design through to deployment and production support
Collaborate closely with architects, technical leads and product stakeholders to deliver robust solutions
Champion engineering best practices including automated testing, CI/CD pipelines and code quality initiatives
Mentor and support other engineers while contributing to a culture of continuous learning and technical excellence
Help modernise existing systems through refactoring and ongoing optimisation while supporting long-term platform evolution
Work within Agile delivery teams to estimate, plan and successfully deliver complex technical solutions

Skills & Experience

Strong commercial experience as a Full Stack Engineer or Software Engineer using TypeScript
Excellent Front End development skills with React and modern JavaScript frameworks
Experience building RESTful and GraphQL APIs along with Real Time communication technologies
Strong knowledge of SQL and NoSQL databases
Experience developing microservices and distributed systems within cloud environments
Hands-on experience with AWS services and serverless or container-based architectures
Knowledge of Infrastructure as Code tools such as Terraform
Experience implementing automated testing across unit, integration and end-to-end levels
Strong understanding of CI/CD pipelines and modern software delivery practices
Experience working within Agile cross-functional engineering teams
Comfortable contributing to technical discussions, architectural decisions and mentoring less experienced developers
Excellent communication skills and a proactive approach to solving complex technical challenges

Nice to Have

Experience with C# or other object-oriented programming languages
Understanding of SOLID principles and software design patterns
Exposure to messaging technologies and event-driven architectures
Experience working on large-scale platform or infrastructure teams
Knowledge of financial markets or highly regulated environments
Contributions to open-source projects or involvement in developer communities

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Senior Full Stack Engineer

Job Details