Frontend Developer

Synapri; Greater London; Hybrid; GBP 90,000 - 110,000; Full time

Job summary

Synapri in central London is seeking an experienced Senior Front-End Engineer to join our growing team on a permanent basis. This hands-on role will see you tackle complex problems, turn ideas into digital experiences, and contribute code from day one across client projects and our own product suite.

You will work with modern React, TypeScript, and web fundamentals, mentor juniors, and help shape the front-end roadmap. Onsite/Hybrid in central London with salary up to £100,000 DOE.

Qualifications

• 4+ years of commercial frontend experience on enterprise web apps.
• Proven track record delivering client-facing projects from ground up.
• Strong React experience with design patterns and best practices.
• Solid understanding of web fundamentals (HTML/CSS/JS).
• Foundational knowledge of TypeScript and functional programming concepts.

Responsibilities

• Hands-on frontend development across client projects and internal products.
• Contribute code from day one and hit the ground running.
• Collaborate with cross-functional teams to deliver high-quality work.
• Mentor junior developers and provide technical guidance across the team.

Skills

React

TypeScript

Functional programming

Web fundamentals

Problem solving

Job description

Synapri are working with an exciting Software business operating within the Investment Management space looking to hire an experienced Senior Front-End Engineer to join their growing team on a permanent basis.

This is a hands-on role for someone who enjoys getting stuck into complex problems, turning ideas into digital experiences and seeing their work make a genuine impact. You’ll be expected to hit the ground running, contribute code from day one and work closely with teams across the business to deliver projects to an exceptionally high standard. You’ll work across a wide variety of client-facing projects, as well as our own growing suite of products, giving you plenty of variety and the opportunity to solve interesting technical challenges.

There’s also significant scope to take on additional responsibility — from helping shape our front-end roadmap and improving processes through to mentoring junior developers and providing technical insight across the wider business.

Location: Onsite/Hybrid in central London

Salary: up to £100,000 (DOE)

Ideal experience

• 4+ years’ commercial experience building enterprise websites or web applications
• A proven track record of taking client-facing projects from the ground up
• Strong experience with the modern React ecosystem, including established design patterns and best practices
• A solid understanding of web fundamentals
• A good foundation in TypeScript and functional programming concepts
• Excellent problem-solving skills and an analytical, inquisitive approach

This role will suit a Frontend developer who enjoys working with a small team to solve problems and come up with technical led ideas.