Senior Frontend Engineer — React, TypeScript & Cloud

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

Job summary

Synapri is seeking an experienced Senior Front-End Engineer to join their software business in central London. You'll work across client-facing and in-house products, taking ownership of complex UI challenges and delivering high-quality digital experiences.

The role offers a hands-on, mentorship-friendly environment with opportunities to shape the front-end roadmap and contribute from day one. Hybrid onsite work in London is available with competitive salary prospects.

Qualifications

• 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.
• Solid understanding of web fundamentals.
• Ability to work confidently in vanilla JavaScript, without relying on third-party libraries.
• Foundation in TypeScript and functional programming concepts.
• Excellent problem-solving skills and an analytical, inquisitive approach.
• AWS Cloud platforms experience.

Responsibilities

• Hands-on role delivering high-quality front-end solutions.
• Hit the ground running and contribute code from day one.
• Collaborate with cross-functional teams across the business on projects.
• Help shape front-end roadmap and improve development processes.
• Mentor junior developers and share technical insights.

Skills

React ecosystem

Vanilla JavaScript

TypeScript

Functional programming

Problem solving

Client-facing projects

Web fundamentals

Tools

AWS

Job description

Synapri is seeking an experienced Senior Front-End Engineer to join their software business in central London. You'll work across client-facing and in-house products, taking ownership of complex UI challenges and delivering high-quality digital experiences.

The role offers a hands-on, mentorship-friendly environment with opportunities to shape the front-end roadmap and contribute from day one. Hybrid onsite work in London is available with competitive salary prospects.