Senior Full Stack Lead Engineer ReactJS,

Huxley; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Job summary

Investment Banking is seeking a Senior Full Stack Lead Engineer to drive front-end and back-end development using ReactJS, TypeScript, JavaScript, and C#/.NET. The role is based in London with hybrid 50/50% home/office working arrangement and offers a permanent contract with a salary range of £90,000 to £130,000 plus bonus.

The candidate will provide deep technical leadership, mentorship, and hands-on delivery across full-stack initiatives in a regulated financial services environment.

Qualifications

• Significant hands-on experience in software engineering within large enterprise environments.
• Strong expertise in: ReactJS, TypeScript, JavaScript, C#/.NET, REST APIs, Distributed application development.
• Strong understanding of modern frontend engineering practices and component-based architectures.
• Deep experience in regulated financial services institutions.

Responsibilities

• Lead full-stack development across frontend and backend (ReactJS frontend, C#/.NET backend).
• Mentor engineers and ensure engineering standards, SDLC compliance, and secure DevSecOps practices.

Skills

ReactJS

TypeScript

JavaScript

C#/.NET

REST APIs

Distributed systems

Job description

Senior Full Stack Lead Engineer ReactJS, TypeScript, JavaScript, C#/.NET Banking London

This is a new and exclusive opportunity for a Senior Full Stack Lead Engineer/ software developer with expertise across ReactJS, TypeScript, JavaScript, C#/.NET to join this investment Banking client as they expand their full stack software developer team in London city.

Role details

• Title: Senior Full Stack Lead Engineer
• Technical stack: ReactJS, TypeScript, JavaScript, C#/.NET
• Employer: investment Banking
• Location: London City and home working hybrid 50/50%
• Permanent role, salary £90,000- £130,000 plus bonus

This is a new opportunity for a Senior Full Stack Lead Engineer to develop using ReactJS, TypeScript, JavaScript, and C#/.NET

This is a senior role for a technically strong engineer who can provide deep technical expertise, engineering guidance, and hands‑on delivery support across frontend and backend (full stack) engineering initiatives.

Key focus:-

• Full-Stack Engineering
• Frontend Engineering (ReactJS)
• Backend Engineering (.NET / C#)
• Engineering Standards & Software Quality
• DevSecOps & SDLC Collaboration
• Technical Mentoring & Engineering Enablement

Required Experience

Significant hands‑on experience in software engineering within large enterprise environments.

• Strong expertise in:
  • ReactJS,
  • TypeScript
  • JavaScript
  • C#/.NET
  • REST APIs
  • Distributed application development.

• Strong understanding of modern frontend engineering practices and component‑based architectures.
• Deep experience working within a highly regulated financial services institution, demonstrating understanding of the pace and complexity of financial organisations.