Senior Full Stack Engineer

McGregor Boyall; Greater London; Hybrid; GBP 90,000 - 100,000; Full time

Benefits offered by this job

Hybrid work model

London office access

Base salary with bonuses

Job summary

McGregor Boyall is recruiting a Senior Full Stack Engineer for a leading financial technology client in London. You will work on a greenfield trading platform, using TypeScript/React with AWS, shaping architecture and scalable solutions for global markets.

You will own end-to-end development, mentor juniors, and collaborate with AWS specialists and architects in a fast-paced, Agile environment. Hybrid work and strong base plus bonuses are on offer.

Qualifications

• Strong commercial experience with TypeScript and React.
• Backend development experience with Node.js, Java or C#.
• Hands-on AWS experience (Lambda, Fargate, API Gateway or AppSync).
• Knowledge of microservices, event-driven architecture and messaging technologies.

Responsibilities

• Own the full development lifecycle from design and coding through testing and deployment.
• Collaborate with experienced engineers and architects to drive technical improvements.
• Mentor junior developers and contribute to platform design.

Skills

TypeScript

React

Node.js

Java

C#

AWS

Microservices

Event-driven architecture

REST APIs

GraphQL

SQL/NoSQL

Terraform

CI/CD

Testing / QA

Agile methodologies

Job description

Senior Full Stack Engineer - TypeScript / React / AWS

London 3 days in Office per week | Permanent | Up to £100k base + Bonuses!

We're partnering with a leading global financial technology business to hire a Senior Full Stack Engineer for an exciting greenfield project, building a next-generation trading platform in collaboration with AWS.

This is a fantastic opportunity to work with cutting-edge technology, influence architectural decisions and help deliver scalable solutions used across global financial markets.

The Role

You'll take ownership of the full development lifecycle, from design and coding through to testing and deployment. Working alongside experienced engineers and architects, you'll drive technical improvements, contribute to platform design and mentor junior developers.

Key Requirements

• Strong commercial experience with TypeScript and React.
• Backend development experience with Node.js, Java or C#.
• Hands-on AWS experience (Lambda, Fargate, API Gateway or AppSync).
• Knowledge of microservices, event-driven architecture and messaging technologies.
• Experience with REST APIs, GraphQL, SQL/NoSQL and Terraform.
• Strong understanding of automated testing, CI/CD and containerisation.
• Comfortable working in Agile teams and delivering production-grade software.

Desirable:

C#/.NET 8+, financial markets knowledge, OTC products or low-latency systems experience.

Why Join?

• Work on a greenfield, next-generation technology platform.
• Collaborate directly with AWS specialists and experienced architects.
• Influence technical direction and engineering best practices.
• Join a collaborative team with opportunities to mentor and grow.

If you're a hands-on engineer looking to work with modern cloud technologies and make a real impact, we'd love to hear from you.