Lead Backend Engineer at LightWork AI

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.

She will pick the best candidates from Jack's network

The next step is to speak to Jack.

Job Title: Lead Backend Engineer

Company Description: LightWork AI - VC-backed startup building the AI operating system for property management.

Job Description:
As the most senior backend engineer, you will architect and build the scalable services powering Felicity, an AI assistant automating 80–90% of property management workflows. You will design event-driven systems in Node.js/TypeScript, integrate advanced LLMs, and establish the technical standards for a high-performing engineering team in a fast-scaling startup environment.

Location: London, UK

Why this role is remarkable:

• Join as the most senior backend authority working directly with a founding team from Revolut, ESG Book, and Mimica.

• Shape the technical backbone of a platform disrupting a massive industry where 75% of time is currently wasted on manual admin.

• Lead the transition from pilot phase to scale, owning the architecture and engineering culture of a potential AI unicorn.

What you will do:

• Architect and build scalable backend systems and RESTful APIs using Node.js, TypeScript, and PostgreSQL.

• Design and maintain microservice and event-driven architectures that support real-time operational workflows and AI integrations.

• Lead technical strategy, mentor engineers, and conduct code reviews to ensure production-grade reliability and performance.

The ideal candidate:

• 7+ years of professional backend experience with deep expertise in Node.js and TypeScript ecosystems.

• Proven track record of designing and operating production systems in microservice or event-driven architectures.

• Strong leadership ability with experience mentoring engineers and translating complex business requirements into robust technical solutions.

Who are Jack & Jill?
Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

Next steps
Step 1. Visit our website.
Step 2. Click 'Talk to Jack'.
Step 3. Talk to Jack so he can understand your experience and ambitions.
Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.
Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.
Step 6. If not, Jack will find you excellent alternatives. All for free.

We never post fake jobs
This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.