Senior Full Stack Developer

Senior Full Stack Engineer

Must Haves: 8+ years of Full Stack Software Development experience, 5+ years developing applications with React, enterprise level experience maintaining or developing applications in Angular, 5+ enterprise level experience backend development experience with Java and Spring Boot, experience building and consuming REST APIs, understanding of GraphQL, strong experience working with SQL and/or NoSQL, experience developing and supporting cloud-hosted applications within AWS, experience working with large volumes of data and building data-driven applications, experience building dashboards, workflows, and operational tooling, understanding of API integration patterns and service-to-service communication, experience with CI/CD pipelines and modern software development practices, strong understanding of software engineering best practices and clean code principles, experience using AI-assisted development tools as part of the development lifecycle.

Plusses: Financial Services or Capital Markets experience, experience working on workflow-based applications, experience building audit-heavy or regulated platforms, AG-Grid experience, experience building reusable UI component libraries, experience with micro-frontend architectures, GraphQL implementation experience, Kafka, MQ, SQS/SNS, or message-based integration experience, experience with cloud-native architectures, experience building highly scalable enterprise platforms, strong UX awareness and front-end design experience, experience using GitHub Copilot or other AI engineering tools, understanding of agentic development concepts and AI-assisted software delivery, experience modernising Angular applications into React, experience working with operational tooling or internal platforms.

Top 5 Technical Requirements: React, Java & Spring Boot, AWS, Angular, REST APIs, GraphQL & Database Experience

Job Description: Title: Senior Full Stack Engineer, Location: Fort Mill, 3 days a week onsite, Number of Positions: 2, BR: $1,140 / day - $142.5 / HR Pay Rate: PAYE C/P: 6 month contract rolling, possible conversion Worker: T&M SOW - W-2

Target start date: 31st August

Interview Process: Codility Exam 1st round, 2nd round, 3rd Round Senior Full Stack Developer

Overview: We are seeking a Senior Full Stack Developer to join the Operational Tooling team, responsible for building and enhancing the strategic platform used to create, manage, monitor, and govern financial indices across the LSEG ecosystem.

This role is heavily focused on delivering modern, data-driven user interfaces and scalable backend services that support operational workflows, approvals, auditing, exception management, dashboarding, and integrations across multiple services. The position is approximately 60% front-end and 40% back-end, making it ideal for an engineer who enjoys building intuitive user experiences whilst remaining hands-on with Java backend development.

React is the strategic front-end technology moving forward, whilst Angular remains an important part of the existing ecosystem and will continue to be supported and modernised. On the backend, you will build and maintain Java Spring Boot services, APIs, integrations, and cloud-hosted applications within AWS.

This is also an AI-first engineering environment, where developers are encouraged to leverage AI tools responsibly to accelerate delivery whilst maintaining strong engineering judgement, accountability, security, and quality standards.

Day-to-Day Responsibilities: As a Senior Full Stack Developer, you will work on the next generation of FTSE Russell's Index Management Platform, building workflow-driven applications that enable users to create, maintain, monitor, and govern financial indices. Much of your time will be spent developing modern front-end applications using React whilst also supporting and enhancing existing Angular applications as the platform continues its transition towards React.

On the backend, you will build Java Spring Boot services, APIs, and integrations that support workflow management, approvals, auditing, notifications, and operational processes. You will work closely with Product Owners, Business Analysts, UX Designers, QA Engineers, Architects, and Platform teams to deliver scalable solutions from concept through to production.

The platform contains significant amounts of complex data, requiring developers who are comfortable visualising, managing, and interacting with large datasets through dashboards, grids, workflows, and reporting tools. You will build integrations using REST and GraphQL APIs, contribute to dashboard functionality, and support applications running within AWS environments. The role also involves leveraging AI-assisted development tools to support prototyping, development, testing, and documentation activities.