GTM Engineer

Arrows; Greater London; On-site; GBP 70,000 - 110,000; Full time

Job summary

Arrows is hiring a GTM Engineer to build the automations and tooling powering our sales and marketing for a UK letting startup. This is a pure build-from-scratch role, not pre-sales.

You will automate core GTM processes and own end-to-end workflows that drive efficiency and visibility across the commercial team.

Qualifications

• 2–5 years' experience in engineering, product, data, consulting, startup, or related projects.
• Real production coding experience (Python, TypeScript, or similar) with APIs and databases.
• Strong technical degree from a leading university (Russell Group or international equivalent).
• Genuine experience building with LLMs beyond prompts, tool use or unattended workflows.
• Commercial instinct with an understanding of funnels and metrics, bias toward shipping fast.

Responsibilities

• Automating sourcing, enrichment, deduplication, and lead scoring for prioritised sales work.
• Building admin infrastructure around selling: pre-call briefs, CRM hygiene, follow-ups, pipeline reporting.
• Owning end-to-end inbound capture: form to enrichment to routing to first response (minutes).
• Building reporting trusted by leadership to inform channel decisions with real metrics.
• Extending systems-thinking approach to wider parts of the business as you grow.

Skills

Production-grade coding

APIs/databases

LLM integration

GTM tooling knowledge

Education

Strong technical degree (engineering, maths, CS, physics) from Russell Group or international equivalent

Tools

Claude API

Agent frameworks

Job description

My client is an early-stage AI startup building the AI-powered front desk for UK letting and estate agents live and already generating revenue with agencies across the country. Their product answers calls, emails, and messages 24/7, qualifies leads, books viewings, and handles the vast majority of that work autonomously.

They're now hiring a GTM Engineer: a highly technical builder who takes functions that traditionally run on manual work, starting with sales and marketing, and builds the systems that run them instead.

This is an engineering seat pointed at go-to-market, not a pre-sales or solutions role. You won't be running demos or writing integration docs, you'll be building the automations, agents, and tooling the commercial team relies on every day.

What you'll be doing:

• Automating sourcing, enrichment, deduplication, and lead scoring, so sales works a prioritised list instead of a spreadsheet
• Building the admin infrastructure around selling: pre-call briefs, CRM hygiene, follow-ups, pipeline reporting
• Owning inbound capture end to end form to enrichment to routing to first response, measured in minutes
• Building reporting the leadership team trusts, so channel decisions run on real numbers
• Extending the same systems-thinking approach into wider parts of the business as you go

What my client is looking for:

• Real production coding experience (Python, TypeScript, or similar) comfortable with APIs, data, and querying a database yourself
• 2–5 years' experience, from any background (engineering, technical product, data, consulting, startup, or your own projects)
• A strong technical degree (engineering, maths, computer science, physics, or similar) from a leading Russell Group university or international equivalent
• Genuine, evidenced experience building with LLMs beyond a prompt agents, tool use, retrieval, evaluation, or unattended workflows
• Commercial instinct you know a funnel, and can tell a metric moving from a metric mattering
• A bias to shipping fast, then hardening what earns its place

Also great to have:

• Background as a technical product manager, forward-deployed/solutions engineer, in growth engineering or revenue operations, or as a technical founder
• Experience with modern GTM tooling (Clay, Apollo, CRM automation) or building on the Claude API, agent frameworks, or MCP
• B2B SaaS experience selling to SMEs or non-technical, time-poor buyers property experience is a bonus

This is a genuine build-from-scratch opportunity, working directly with the founders on a small team where your impact is visible week to week.