Full Stack Engineer

Signify Technology; Greater London; On-site; GBP 55,000 - 80,000; Full time

Job summary

Signify Technology is seeking a Full Stack Engineer in Greater London. This role involves building and maintaining backend services in NestJS and TypeScript, while also contributing to the React frontend. Candidates should have over 4 years of experience, strong communication skills, and a proficiency in AI tooling. The ideal applicant is confident with both backend and frontend technologies and capable of collaborating effectively within a team that values quality and speed.

Qualifications

• Over 4 years experience as an engineer.
• Strong proficiency in TypeScript.
• Practical experience building backend services in NestJS.
• Confident with React on the frontend.
• Experience with PostgreSQL, including writing efficient queries.
• Working knowledge of AWS and modern deployment practices.
• Strong communication skills.

Responsibilities

• Build and maintain backend services in NestJS and TypeScript.
• Contribute to the React frontend.
• Participate in technical discussions to evolve the platform.

Skills

TypeScript

React

PostgreSQL

AWS

Docker

CI/CD

AI tooling

Strong communication skills

Job description

We are a scaling fintech redefining how people interact with financial products. My client platform processes millions of transactions and serves a growing customer base across multiple markets and as they expand, they need engineers who are ready to grow with them.

This is a hands on full stack role at the heart of the product engineering team. You will work across backend and frontend, owning features from initial design through to production, and collaborating closely with product and design to deliver experiences that are fast, reliable, and genuinely useful to there customers. They move quickly, we care about quality, and we give the engineers the autonomy to make meaningful decisions.

About the role

You will build and maintain backend services in NestJS and TypeScript, contribute to their React frontend, and play an active part in technical discussions that shape how their platform evolves. You will work in a team that values pragmatism over process they ship regularly, iterate quickly, and hold themselves to a high standard without getting precious about it.

AI tooling is a genuine part of how the team works. We expect you to have developed your own workflow around these tools using them to accelerate delivery, improve code quality, and reduce friction across the development lifecycle.

Requirements

• Over 4 years experience as an engineer
• Strong proficiency in TypeScript with practical experience building and maintaining backend services in NestJS
• Confident with React on the frontend, including component architecture, state management, and performance considerations
• Experience with PostgreSQL or similar relational databases, including writing efficient queries and managing schema changes in a live environment
• Working knowledge of AWS and modern deployment practices, including Docker and CI/CD pipelines
• User of AI for day to day tasks
• Strong communication skills and the ability to work effectively alongside product managers, designers, and other engineers
• Worked in industry with heavy compliance