Backend engineer for home services

Alfa AI; Greater London; On-site; GBP 90,000 - 140,000; Full time

Benefits offered by this job

Equity

Competitive salary

Work-life balance

Job summary

ALFA AI GmbH in London is seeking a Lead Backend Engineer to design a global, agentic-first platform for moving and home life. The role demands ownership to build foundations for a scalable, live-voice capable marketplace.

You will shape latency budgets, ensure observability, and move live systems to a modern stack with robust data contracts and idempotent operations. UK right to work is required.

Qualifications

• Experience architecting real systems end to end in production.
• Strong in TypeScript and scalable backend design.
• Familiarity with latency-sensitive live systems and observability.

Responsibilities

• Design and build a global, agentic-first backend platform for live voice with sub-second reads.
• Architect state machines, data contracts, queues, and infrastructure for scalable operation.
• Ensure secure, auditable, and maintainable systems with clear rollback and observability.

Skills

TypeScript

System design

Backend architecture

Job description

Описание:

We're hiring a Lead Backend Engineer to design a global, agentic-first platform for moving and home life. Fast enough for live voice. Reliable enough for agents to act on their own. We are looking for a truly world-class engineer who has seen what great looks like and can take ownership to build the foundations for a global agentic marketplace. The opportunity: OpenClaw meets Amazon, for your home. Moving is the second most stressful thing most people do, and the admin never stops. Jay is the personal AI that takes it off your plate.

Задачи:

Households, properties, partners, suppliers and how they relate. State machines every order runs on, clear enough for an agent to act on. Contracts between domains, data, queues, infrastructure. You design it and you build it. Live voice needs sub-second reads and a platform that doesn't need babysitting. Latency budgets per domain, observability shipped with the feature, rollback rehearsed every release, small changes to production daily. You'll move live systems onto a modern stack without dropping anything. Permissioned access for Jay and partner agents to read and act, with idempotency, audit trails and a hard line around money. Config over code, so commercial teams change pricing without a deploy. How you work becomes how engineering works.

Требования:

You're a systems thinker first. How the parts interact, where failure hides, what breaks at ten times the volume. You've architected real systems end to end, more than once, and run them in production at the scale of millions of users. You take the edges seriously. Retries, idempotency, backpressure, the message that arrives twice. You raise everyone around you. The standard goes up on work you never touch. You are great to work with and will make work more joyful. You're AI-native at the frontier, and you set the practice for the team, from planning to evals. You're strong in TypeScript, productive in whatever a problem needs within days, and happiest thinking out loud with the team. UK right to work required. Будет плюсом: You've led a team, or worked in UK property or utilities; You've moved house in the UK and it made you angry. We want the specific story; You already have ideas about how it should work. Bring them to the first call

Условия:

• Cash competitive, plus equity
• Work hard, play hard.
• Crunch time means late nights and weekends.
• In general, great work-life balance.