AI Automation Engineer

Mooncommerce Limited; Greater London; Hybrid; GBP 35,000 - 39,000; Full time

Benefits offered by this job

Hybrid working

25 days' annual leave

Pension with 15% employer contribution

Job summary

Moon Commerce Limited is a UK-registered technology company building digital ventures across commerce, consulting, property and SaaS. This role focuses on hands-on automation platform work, shipping end-to-end workflows and integrating with various tools and APIs.

You will work directly with the leadership team, own production workflows, and be involved across ventures with a clear path to broader responsibility.

Qualifications

• Minimum 2 years' hands-on Python experience.
• Practical experience with an LLM API (Anthropic, OpenAI or similar).
• Comfort working with REST APIs and JSON.
• Understanding of RAG and why grounding matters.
• Git and the habits that come with working in a shared repo.
• Clear written English — you will be documenting and explaining decisions.
• Right to work in the UK — sponsorship not offered.
• Able to work from our area office 2 days a week.

Responsibilities

• Build and test automation workflows using LLM APIs.
• Work on retrieval over internal and client documents.
• Integrate with third-party tools and APIs across our ventures.
• Write evaluations — decide how we know a workflow is working and catch it when it isn't.
• Take workflows from prototype to reliable enough to run unattended.
• Document what you build so someone else can pick it up.

Skills

Python

LLM API experience

REST APIs

JSON

Git

English writing

Right to work in the UK

Tools

LangChain

Pinecone

Chroma

pgvector

Job description

Moon Commerce Limited is a UK-registered technology company building and operating digital ventures across commerce, consulting, property and SaaS. We trade online, advise businesses on digital transformation and data-driven marketing, and are developing an AI-powered automation platform that turns repetitive processes into scalable systems.

We're small and early-stage, which means the person in this role will see the whole business rather than one corner of it.

The role

We're building an agentic automation platform that replaces repetitive operational work with systems. This role is hands-on building and testing those workflows — not research, not prompt tinkering. You'll ship things other people depend on.

You'll work directly with the leadership team on what gets built and why.

What you'll do

• Build and test automation workflows using LLM APIs
• Work on retrieval over internal and client documents
• Integrate with third-party tools and APIs across our ventures
• Write evaluations — decide how we know a workflow is working and catch it when it isn't
• Take workflows from prototype to reliable enough to run unattended
• Document what you build so someone else can pick it up

Your first three months

• Month 1: learn the ventures, get into the existing codebase, and ship a small automation end-to-end
• Month 2: Own a workflow in production with evaluation coverage
• Month 3: lead the build on a client-facing automation

What we're looking for

• Minimum 2 years' hands-on Python experience
• Practical experience with an LLM API (Anthropic, OpenAI or similar) — something you built, not just used
• Comfort working with REST APIs and JSON
• Understanding of RAG and why grounding matters
• Git, and the habits that come with working in a shared repo
• A realistic view of where these models fail and what to do about it
• Clear written English — you'll be documenting and explaining decisions
• Right to work in the UK — we cannot offer sponsorship
• Able to work from our [area] office 2 days a week

Nice to have

• Vector databases (Pinecone, Chroma, pgvector or similar)
• LangChain, LlamaIndex or equivalent
• AWS or other cloud deployment
• Automation tooling (n8n, Zapier, Make) at a technical level

What we offer

• Salary £35,000–£39,000 depending on experience
• 25 days' annual leave plus 8 UK bank holidays
• Office closed between Christmas and New Year
• Workplace pension with [15 ]% employer contributions]
• Hybrid working — 2 days a week at our [area] office, 37.5 hours, permanent
• £[3750] annual learning budget for courses and certifications
• Direct mentoring from the leadership team and exposure across every venture
• Real ownership of your work and a short path to broader responsibility

Hiring process

• 20-minute introductory call
• 45-minute technical conversation about something you've built
• 30-minute conversation with the founding team

We aim to give a decision within a week of the final stage, and we give feedback either way.

Reporting to: Technology Lead

Visa sponsorship: We are not able to offer visa sponsorship for this role. Applicants must already hold the right to work in the UK.

Equal opportunities

Moon Commerce is an equal opportunity employer. We welcome applications from all backgrounds and make hiring decisions on merit. If you need any adjustment to the application or interview process, tell us and we'll arrange it.