back end developer Work, Jobs in field based (with Salaries)

Software Developer
Veriscope.Digital —Remote
- £15 - £30 an hour
- Part-time
- Remote
- Computer Science
- JavaScript
- APIs
Quick apply
2d
Web Developer
Value Tech Labs Limited —Remote
- £30,000 - £45,000 a year
- Full-time
- Remote
- Azure
- DevOps
- AWS
Quick apply
Software Developer
Nordic Software and AI —Remote
- From £14 an hour
- Remote
- Azure
- English
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- Work from home
Quick apply
1d
Software Developer, Front End
BlueVoyant —Remote
- Full-time
- Remote
- Azure
- DevOps
- APIs
Quick apply
9d
Software Engineer, Back End
Enterprise League —Remote
- Full-time
- Remote
- English
- Java
- SQL
Web Developer
Ramark systems Ltd —Remote
- £34,000 - £45,000 a year
- Full-time
- Remote
- Azure
- AWS
- JavaScript
Quick apply
9d
Backend Developer (Founding Team – Equity-Based)
LYON INCORPORATED LIMITED —Remote
- £34,108.52 - £104,938.40 a year
- Remote
- Software development
- APIs
- SDLC
Quick apply
6d
Full Stack Developer (Angular, Node.js, Express, PHP/CakePHP)
Atos —Remote
- Remote
- DevOps
- SQL
- JavaScript
- Annual leave
- Work from home
Back End Software Engineer, Microsoft Azure Technologies
BlueVoyant —Remote
- Full-time
- Remote
- Azure
- APIs
- AI
Quick apply
9d
Junior Software Engineer
Stonebridge Mortgage Solutions Limited —Remote
- Full-time
- SQL
- Agile
- Communication skills
- Employee assistance programme
- Employee discount
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12d
Python Web Developer
MKSK Consulting —Remote
- £96,000 - £200,000 a year
- Remote
- English
- SQL
- JavaScript
Full-Stack Developer (Java + React / Next.js)- Poland
RemoteStar —Remote
- Full-time
- Remote
- Java
- JavaScript
- APIs
Frontend Developer
StraxSystems —Remote
- Remote
- JavaScript
- APIs
- Communication skills
Snr Fullstack .Net Developer
Simply Commerce Group Ltd —Remote
- £55,000 - £75,000 a year
- Remote
- Travel
- Annual leave
Middle Frontend Developer
Mad Devs —Remote
- Remote
- English
- JavaScript
- APIs
- Paid training
- Flexible schedule
Fullstack Developer – Magento/Adobe Commerce
Simply Commerce Group Ltd —Remote
- £70,000 a year
- Remote
- Travel
- Agile
- Employee discount
Staff Backend Engineer - Grafana App Platform | UK | Remote
Grafana Labs —Remote
- £103,958 - £124,750 a year
- Remote
- Communication skills
- Annual leave
.NET App Developer
Vantify —Remote
- £35,000 - £40,000 a year
- Full-time
- Remote
- Azure
- APIs
- Communication skills
- Annual leave
- Employee assistance programme
Quick apply
Software Engineer
CircleCI —Remote
- £76,500 - £95,000 a year
- Remote
- System design
- APIs
- Annual leave
Junior Software Engineer (Backend)
Mambo Solutions —Remote
- £30,000 - £40,000 a year
- Full-time
- Remote
- English
- Java
- Communication skills

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back end developer jobs near field based

Software Developer

Veriscope.Digital
Remote

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Job details

Part-time
£15 - £30 an hour
2 days ago

Qualifications

Computer Science
CSS
React
iOS
Git
JavaScript
GitHub
APIs
UI
HTML

Full job description

Job Overview

Content Sieve is an AI-powered Chrome extension (Manifest V3) that filters web content by topic across any website, using OpenAI's API via a Cloudflare Worker proxy to intelligently distinguish genuine topic matches from false positives. The extension is live on the Chrome Web Store with a working free/premium tier model and Stripe subscription billing already in place. We are looking for a developer to help extend its capabilities, improve filtering accuracy, and build toward a more polished product.

Responsibilities

Develop, test, and deploy updates to a Manifest V3 Chrome extension using vanilla JavaScript, working across content scripts, background service workers, and the popup UI.
Improve and extend the core AI filtering logic, including the keyword-first gate and dual-model routing between GPT-4.1-nano (free tier) and GPT-4.1-mini (premium tier).
Maintain and enhance the Cloudflare Worker back end, including the /api/check-content, /api/validate-key, /api/checkout, and /api/stripe-webhook endpoints.
Work with Cloudflare KV namespaces for licence key storage and free-tier daily cap enforcement.
Extend or improve the Stripe integration, including checkout session creation, webhook handling, and licence key generation on successful payment.
Improve DOM traversal logic in the content script for more reliable card detection across deeply nested React and Next.js page structures.
Maintain and improve the popup UI, built in HTML, CSS, and vanilla JavaScript.
Manage session caching logic and client-side rate limiting (token bucket) to minimise unnecessary AI calls.
Use Git and GitHub for version control throughout.
Document architectural decisions and deployment steps clearly for ongoing reference.
Help build the Android and iOS version

Experience

Demonstrable experience building Chrome extensions using Manifest V3, including content scripts, background service workers, and the Chrome messaging API.
Strong proficiency in vanilla JavaScript, including asynchronous patterns, chrome.storage.sync, and browser extension APIs.
Hands-on experience with Cloudflare Workers and Wrangler, including KV namespace management and secret configuration.
Familiarity with the OpenAI Chat Completions API and prompt design for classification tasks.
Experience integrating Stripe, including checkout sessions, webhook verification (HMAC-SHA256), and subscription lifecycle events.
Solid understanding of HTML5 and CSS3 for extension popup and options UI work.
Version control with Git and GitHub is essential.
Experience with DOM traversal and content manipulation across diverse page structures, including React and Next.js sites, is a strong advantage.
Prior experience shipping a published browser extension is strongly preferred.
A Computer Science or related degree preferable but not compulsory.

Before You Apply

We ask that all candidates install Content Sieve from the Chrome Web Store or www.veriscope.digital and spend a few minutes using it before submitting an application. We're looking for a brief professional assessment alongside your application: what works well, what doesn't, and where you see the clearest opportunities for improvement — whether in filtering accuracy, UI, performance, or architecture.

This isn't a test with a right answer. It tells us how you think about an existing codebase and a real product, and it means any conversation we have from the first message is grounded in direct experience of what you'd be working on.

The extension is free to install. Find it at the Chrome Web Store or www.Veriscope.Digital

Pay: £15.00-£30.00 per hour

Application question(s):

Take a look at Content Sieve, what improvements would you suggest to the product?

Work Location: Remote

Quick apply

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