Back end developer Work, Jobs in North Ockendon (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) Junior/Mid
Careerswift —London
- Full-time
- Remote
Full Stack Developer
Bayuti —London
- £25,000 - £35,000 a year
- Full-time
- Agile
- In-person
- Employee stock ownership plan
Quick apply
8h
Junior Software engineer
vServices —London
- Computer Science
- Bachelor's degree
- Agile
Full Stack Developer
StoryTerrace —London
- £4,000 a month
- Remote
- AI
Quick apply
14d
Web Designer/Front end developer
Amplefuture —London
- Software troubleshooting
- HTML
Solar Web UI Developer
Standard Chartered —London
- English
- Communication skills
- Annual leave
- Employee assistance programme
7d
Junior Front End Developer
Byte9 —London
Full Stack PHP Developer
Gemex —London
- £30,000 - £40,000 a year
- 8 hour shift
- Hybrid work
- JavaScript
- APIs
Quick apply
11d
Full-Stack Developer
Applied Data Science Partners —London
- Hybrid work
- Analysis skills
- Organisational skills
- Agile
- Annual leave
Python Developer
Durlston Partners —London
- £150,000 - £175,000 a year
- Remote
- System design
- C++
- Software development
Back End Developer
DataSpartan Consulting —London
- Computer Science
- Master's degree
- Bachelor's degree
Full Stack Developer
LEWIS —London
Software Engineer
Longshot Systems Ltd —London
- Full-time
- Hybrid work
- English
- Java
- Master's degree
- Gym membership
Quick apply
Back End Engineer
Voy —London
- Hybrid work
- No degree
- APIs
- Communication skills
Quick apply
Junior / Mid-Level Full Stack Developer
NECSWS —London
- Full-time
- Remote
- Computer Science
- Engineering
- Agile
- Annual leave
Quick apply
Junior Web Developer (C# / Blazor)
Simpson Spence Young —London
- Azure
- Bachelor's degree
Java Developer – Algo Development Technology (Equities)
Millennium Management —London
- Java
- Software development
- AI
Full-Stack Engineer (Front-End Leaning)
ElevenLabs —London
- Full-time
- Remote
S/4HANA ABAP Developer (Back-end)
Capgemini Sogeti —London
- Software troubleshooting
- Continuous improvement
7d

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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

back end developer jobs in north ockendon

Full-Stack JavaScript Developer

Frontend Developer (React) Junior/Mid

Full Stack Developer

Junior Software engineer

Full Stack Developer

Web Designer/Front end developer

Solar Web UI Developer

Junior Front End Developer

Full Stack PHP Developer

Full-Stack Developer

Python Developer

Back End Developer

Full Stack Developer

Software Engineer

Back End Engineer

Junior / Mid-Level Full Stack Developer

Junior Web Developer (C# / Blazor)

Java Developer – Algo Development Technology (Equities)

Full-Stack Engineer (Front-End Leaning)

S/4HANA ABAP Developer (Back-end)

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