Digital Systems Developer (AI-Augmented)

Build the systems that run a UK ISP — with an AI at your side

We are an established UK broadband and mobile provider that builds its own tools rather than buying them. Our business support system (BSS) — ordering, provisioning, ticketing, warehouse, collections, One Touch Switch, supplier billing checks — is written in-house, and it is what lets a small team punch well above its weight.

We are hiring a developer to work directly alongside our technical lead and Claude, the AI we use every day as a working collaborator. This is not a "we use Copilot for autocomplete" role. Claude designs, writes and reviews production code with us; your job is to direct that work, judge it, integrate it and ship it. If you have already found that pairing with an AI makes you far more productive — and you want to do that all day, on systems that real customers and staff depend on — this is the role.

What you will do

• Turn operational problems ("orders stall here", "billing files don't reconcile", "staff re-key this three times") into specified, working systems — *fast*.
• Pair with Claude to design, build, test and harden new BSS modules and integrations, then take ownership of getting them live.
• Work against wholesale and carrier APIs (broadband aggregators, Openreach-based suppliers, One Touch Switch, mobile SIM management) — SOAP, XML, REST and JWT auth, often with thin or wrong documentation.
• Build internal tooling that changes how the business operates: automation of manual processes, dashboards, reconciliation engines, customer self-service, and the odd AI-driven feature (we already run an AI first-responder in our ticket system).
• Deploy and look after what you build on our Plesk-managed VPS hosting.
• Review AI-generated code critically: security, edge cases, data integrity and performance are yours to sign off, not the model's.
• Ship in small, frequent increments across our family of brands.
• Improve and enhance what is built to ensure we are ahead of the game.

Our stack

• PHP 8.3+, PDO, MariaDB — framework-free, minimal dependencies
• Vanilla JavaScript, HTML/CSS; no build pipeline
• Plesk-managed VPS hosting, nginx, zip deployment
• Integrations via SOAP, REST/JSON, Microsoft Graph, Stripe, GoCardless, Royal Mail
• Claude (Anthropic) as the day-to-day development partner

What we are looking for

Must have

• Practical backend web development and relational database experience — you can design a schema, write the queries and make them fast.
• Real experience using AI coding assistants to build production software, and clear opinions on where they help and where they get it wrong.
• Comfortable working with third-party APIs, including badly documented ones, and debugging by reading the wire.
• Security-minded: auth, sessions, CSRF, input handling and personal data are second nature.
• Able to take a loosely described business problem and turn it into a scoped, buildable spec — you will often be the one writing the brief for Claude.
• Right to work in the UK; fluent written British English.

Desirable

• Knowledge of PHP (plain, framework-free) and MariaDB/MySQL.
• Experience administering or deploying to a Plesk-managed VPS.
• Telecoms or ISP background (broadband provisioning, Openreach/wholesale processes, billing and reconciliation, One Touch Switch).
• WordPress plugin development.
• Experience with TM Forum APIs, CDR pipelines or TR-069/ACS.
• Experience with data reconciliation or duplicate-detection logic.

What this role is really like

Honest version: it is fast, unglamorous and satisfying. You will not spend weeks in planning. You will be given a problem on Monday and expected to have something usable by Thursday, using Claude to get there and your own judgement to make sure it is right. Some days that is a new module; some days it is untangling a supplier's XML quirk that nobody else has documented. If you need a big team, a Jira board and a design system before you write a line, this will frustrate you. If you like owning systems end to end and seeing them used the same week, you will thrive.

What we offer

• £30,000-£32500
• Monday to Friday 09:00 - 17:30
• Office-based role at our Modern Newmarket office — this is an in-house position, not remote or hybrid
• Direct access to the technical lead and a genuine say in what gets built
• Anthropic Claude subscription and the tools you need
• The chance to define how a UK ISP builds with AI, rather than inherit someone else's process

How to apply

Send us your CV, and a short note. Please include one concrete example of something you have built with an AI assistant, what the AI got wrong, and how you caught it — that tells us more than any covering letter.

We are an equal opportunities employer and welcome applications from all backgrounds. Please note this is an office-based role; we are not able to offer remote working.

Pay: £30,000.00-£32,500.00 per year

Benefits

• Casual dress
• Company events
• Employee discount
• Free parking
• On-site parking

Work Location: In person