Digital applications developer Work, Jobs (with Salaries)

Software Developer
Veriscope.Digital —Remote
- £15 - £30 an hour
- Part-time
- Remote
- Computer Science
- JavaScript
- APIs
Quick apply
Software Developer Apprentice
QA Apprenticeships —London
- £16,000 a year
- Full-time
- Azure
- Windows
- Java
- Annual leave
.NET Developer (AI Projects)
Hastings Direct —Bexhill
- Full-time
- Hybrid work
- Azure
- Computer Science
- DevOps
Software Engineer
Baker Hughes —Cramlington
- Full-time
- Remote
- Azure
- Engineering
- Bachelor's degree
- Flexible schedule
- Life insurance
Web Developer
The SEO Works —Sheffield
- Full-time
- Hybrid work
- JavaScript
- Travel
- APIs
- Work from home
- Employee discount
Quick apply
Manchester - Junior Developer - Elevate Programme
Vantage Point —Manchester
- Full-time
- Hybrid work
- Java
- SQL
- JavaScript
Full Stack Developer (AI Focus - Scotland)
MedAscend —Scotland
- From £150 a day
- Part-time
- Remote
- Bachelor's degree
- JavaScript
- APIs
Quick apply
Digital Developer
Hastings Direct —Bexhill
- Full-time
- Hybrid work
- Java
- SQL
- JavaScript
Web Developer
Oblige IT —Bolton
- Organisational skills
- APIs
- HTML
Apprentice/ Trainee Web Developer
Tactile Solutions —Norwich
- From £8 an hour
- Full-time
- Hybrid work
- JavaScript
- IT
- HTML
- Free parking
- Work from home
Quick apply
Digital Operations & AI Coordinator (Part-Time)
Nomaz Limited T/A Online Chemist —Gorleston-on-Sea
- From £12.71 an hour
- Part-time
- Computer Science
- JavaScript
- In-person
- Free parking
- Employee discount
Quick apply
Core Developer (Python)
Wintermute Trading —London
- Full-time
- Remote
- SQL
- C++
- Machine learning
- Relocation assistance
Developer Relations AI (100% remote)
Tether Operations Limited —London
- Full-time
- Remote
- Computer Science
- Engineering
- English
Fullstack Developer (Vue/.Net) - UK (Mainly Remote)
Journi —Banbury
- Remote
- Azure
- English
- JavaScript
Internship: Web Designer/Developer
AP Homes LTD —Knightsbridge
- Hybrid work
- English
- Administrative experience
- JavaScript
Quick apply
Junior Software Tester - Automation
Onebright —York
- £33,825 - £37,925 a year
- Call to connect
- Hybrid work
- IT
- Communication skills
- Annual leave
- Employee assistance programme
Quick apply
8d
Web Developer
Kalexiko —Birmingham
- JavaScript
- Communication skills
- HTML
- Annual leave
- Flexible schedule
Digital Applications Developer
Welsh Ambulance Service University NHS Trust —Denbighshire
- £40,559 - £48,841 a year
- Full-time
- English
- Analysis skills
- Patient care
15h
Web Developer
Ramark systems Ltd —Remote
- £34,000 - £45,000 a year
- Full-time
- Remote
- Azure
- AWS
- JavaScript
Quick apply
PLM / Digital Engineering Developer
BAE Systems Inc. —York
- £88,189 - £149,922 a year
- Full-time
- Remote
- Azure
- Computer Science
- DevOps
- Annual leave
- Employee assistance programme

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Software Developer

Veriscope.Digital
Remote

Quick apply

Job details

Part-time
£15 - £30 an hour

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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