Senior Front-End Engineer (React/TypeScript) – Hybrid London

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 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.