'react' and 'javascript Work, Jobs in United Kingdom (with Salaries)

Full-Stack JavaScript Developer
P & J Moore Limited —Upminster
- £40,000 - £60,000 a year
- Full-time
- SQL
- In-person
- Communication skills
- Free parking
Quick apply
3d
Frontend Developer - React
Xelix —London
- £60,000 - £75,000 a year
- Full-time
- Hybrid work
- Mentoring
- Annual leave
Quick apply
Junior Front End Developer
Byte9 —London
Frontend Developer
SLR Consulting —London
- Full-time
- Agile
Java Developer (React)
Talan —London
- Full-time
- Hybrid work
- Agile
- Communication skills
Quick apply
Software Developer I
CPI Card Group —Norwich
- Computer Science
- Master's degree
- Bachelor's degree
Senior Frontend Developer
Kolleno —London
- Full-time
- Remote
- APIs
Software Development Engineer (Frontend)
Adobe —Edinburgh
- Full-time
- Mentoring
- AI
- Communication skills
Web Developer Airtables
ADHD Action Network —Remote
- £30 - £50 an hour
- Temporary
- Remote
- AWS
Quick apply
Full Stack Software Developer
Kawai Architecture and Design Studio —Brighton
- £3,500 - £4,000 a month
- Full-time
- Computer Science
- Software troubleshooting
- Engineering
Quick apply
1d
Junior / Mid-Level Full Stack Developer
NECSWS —London
- Full-time
- Remote
- Computer Science
- Engineering
- Agile
- Annual leave
Quick apply
JavaScript Developer
Scaletek —Bristol
- £50,000 - £65,000 a year
- Full-time
- Hybrid work
- AWS
Quick apply
6d
Front-end Developer (React) - Remote
Best.Energy —Bristol
- £32,000 - £42,000 a year
- Hybrid work
- APIs
- Communication skills
- Flexible schedule
Quick apply
Full Stack Developer
StoryTerrace —London
- £4,000 a month
- Remote
- AI
Quick apply
14d
Software Developer
Crypto tracker —Remote
- Up to £1,016.80 a week
- Temporary
- Remote
- AWS
Quick apply
4d
Full Stack Developer (Typescript/NodeJS)
Gravitywell —Bristol
- £40,000 - £60,000 a year
- Full-time
- APIs
- Linux
- Communication skills
Full Stack Web Developer
Creative Brand Design —Cranleigh
- £38,000 - £45,000 a year
- Full-time
- Software troubleshooting
- APIs
- In-person
- Flexitime
Quick apply
7d
Senior Frontend Developer
Epicor —Peterborough
- Full-time
- Hybrid work
- Mentoring
- Agile
- In-person
14d
Full Stack Web Developer - Website Development (mid-level)
Moneycorp —London
- Full-time
- English
- Analytics
Senior Frontend Developer (React / TypeScript)
Mixam —Leavesden Green
- £65,000 - £75,000 a year
- Full-time
- Hybrid work
- Communication skills
Quick apply

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Full-Stack JavaScript Developer

P & J Moore Limited
Upminster

Quick apply

Job details

Full-time
£40,000 - £60,000 a year
3 days ago

Benefits

Free parking
Casual dress
On-site parking

Qualifications

React
SQL querying
Microsoft SQL Server
SQL
Express.js
Docker
SCSS
Redis
Back-end development
Front-end development
Web services
Unit testing
Communication skills
NGINX

Full job description

Location

Upminster, Essex, UK

Working pattern

On Site

Salary

£40,000-£60,000, depending on experience

Employment type

Full-time

The opportunity

We're building a multi-brand claims-acquisition platform that guides consumers through the complete online claims journey, from their first visit through identity verification, e-signature and submission.

As a Mid-Level Full-Stack JavaScript Developer, you'll work across the platform: a React single-page application on the front end, Node.js APIs and background workers on the back end, and Microsoft SQL Server as the system of record.

This is a hands-on product engineering role where you'll ship customer-facing journey steps, build and consume REST APIs, write database migrations and integrate third-party services behind clean, maintainable interfaces.

What you'll do

Build and maintain customer-journey screens and shared components in React 19, using React Router 7, Vite and Sass/SCSS across multiple branded sites from a single codebase.
Develop back-end features in Node.js, including a Fastify API, an Express backend-for-frontend and durable background jobs processed through a SQL-backed outbox queue.
Design and evolve the SQL Server schema through forward-only migrations, using parameterised queries and transactional business logic.
Integrate and mock third-party services, including identity-verification and lead-management providers, while keeping transport details behind well-defined interfaces.
Write meaningful tests at every layer: Vitest unit and route tests, Testing Library component tests, and Playwright end-to-end journeys against a real database running in Docker.
Build with the needs of a regulated consumer product in mind, including robust input validation, careful PII handling, audit trails, idempotent retries and graceful degradation.
Work collaboratively to document technical decisions, follow established conventions and improve the platform as it grows.

What you'll bring

At least three years of professional JavaScript development experience, with meaningful hands-on work across both front-end and back-end development.
Strong React fundamentals, including hooks, controlled forms, routing and state management, together with confidence using modern ESM tooling.
Experience building and consuming REST APIs in Node.js using Fastify, Express or a comparable framework.
Practical SQL knowledge covering schema design, joins, transactions and indexes. SQL Server experience is helpful but not essential.
A genuine testing habit: you write useful tests because they prevent defects and support confident delivery, not simply because the CI pipeline requires them.
Clear written communication and the ability to document decisions, explain trade-offs and work within established conventions.

Nice to have

Experience working on multi-tenant or multi-brand products.
Familiarity with queue or outbox patterns, Redis, PM2, nginx or Cloudflare.
Exposure to regulated industries such as claims, finance or insurance, or experience with KYC and identity-verification journeys.

Our technology stack

Pay: £40,000.00-£60,000.00 per year

Benefits:

Casual dress
Free parking
On-site parking

Work Location: In person

Quick apply

Refine Your Search

'react' and 'javascript jobs in united kingdom

Full-Stack JavaScript Developer

Frontend Developer - React

Junior Front End Developer

Frontend Developer

Java Developer (React)

Software Developer I

Senior Frontend Developer

Software Development Engineer (Frontend)

Web Developer Airtables

Full Stack Software Developer

Junior / Mid-Level Full Stack Developer

JavaScript Developer

Front-end Developer (React) - Remote

Full Stack Developer

Software Developer

Full Stack Developer (Typescript/NodeJS)

Full Stack Web Developer

Senior Frontend Developer

Full Stack Web Developer - Website Development (mid-level)

Senior Frontend Developer (React / TypeScript)

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