SplitStay

Founding Engineer (AI & Product)

London

Posted 1 day ago

How your CV stacks up

1Upload CV

2Analyse CV

3Improve CV

Upload your CV to see how well it fits this job role

Drag and drop your CV

or browse files

Supported files: PDF, DOC, DOCX

Build the AI Coordination Layer for Group Travel

📍 London, United Kingdom (Hybrid)

Remote across the UK & Europe considered for exceptional candidates.

Full-time | Contract | Founding Team

The opportunity

Every year, millions of people travel with friends to attend HYROX races, marathons, festivals, conferences and other shared experiences.

Finding accommodation isn't the difficult part.

Getting the group to agree is.

Group chats become chaotic. Budgets differ. Arrival dates change. Room preferences conflict. Someone always ends up organizing everything.

Existing travel platforms optimize booking.

We're building the AI layer that optimizes coordination before booking.

SplitStay helps groups collect preferences, surface trade-offs, reach consensus faster and seamlessly continue to their preferred booking platform.

We believe this coordination layer will become a fundamental part of how people organize group travel.

We're looking for an exceptional founding engineer to help build it.

Why join now?

We're at one of the most exciting stages of the company.
Live product.
Real users.
Clear product-market hypothesis.
Preparing our next major growth phase.
Working directly with the founder.
Small team.
High ownership.
Fast decisions.
Zero bureaucracy.

This is a chance to shape not only the product, but also the engineering culture and long-term technical direction of the company.

For the right person, this role can naturally evolve into long-term technical leadership as SplitStay grows.

What you'll build

You'll work on some of the hardest and most interesting problems in modern consumer AI. Including:

AI-powered group coordination
Multi-user decision-making systems
WhatsApp conversational experiences
LLM agent orchestration
Preference collection
Conflict detection
Consensus generation
Real-time collaboration
Booking handoff architecture
Secure, scalable backend systems

Reasons to use Rodeo

I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?

Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.

Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.

Start with a chat, not a search bar

Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.

It searches the market for you

Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.

Only hits

No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.

You'll help define how groups make travel decisions, not simply build another booking platform.

What you'll own

You'll have significant ownership from day one.

Responsibilities include:

Designing product architecture
Building production-ready AI workflows
Shipping customer-facing features end-to-end
Improving engineering velocity
Making technical trade-offs
Helping shape long-term architecture
Working directly with the founder on product strategy

There is no product manager between you and the problem.

Our technology

Current stack includes:

TypeScript
SolidJS
Supabase
PostgreSQL
Claude
Anthropic Tool Calling
Twilio WhatsApp API
Tailwind CSS
Vercel
GitHub Actions
Terraform

Experience with every technology isn't required.

Strong engineering fundamentals matter more than matching every framework.

We're looking for someone who

Loves building products from zero to one.
Enjoys difficult technical problems.
Thinks like both an engineer and a product builder.
Moves quickly while maintaining quality.
Takes ownership.
Communicates clearly.
Challenges assumptions with good reasoning.
Is excited by AI's practical applications.
Wants meaningful impact rather than simply another engineering role.

Must-have experience

Strong TypeScript
Modern frontend development
Backend architecture
PostgreSQL
Cloud deployment
API design
Git
Production software

Nice to have

Supabase
AI agents
Claude
OpenAI
Tool calling
Prompt engineering
Twilio
Marketplace products
Consumer software
Travel technology
Early-stage startup experience

What success looks like after six months

Get help with your application

Your very own career expert that helps elevate your application to the next level.

Get help applying for this job

You'll have helped us:

Launch our Coordination Intelligence Engine.
Scale our AI-powered WhatsApp experience.
Ship multiple production features.
Improve platform architecture.
Increase engineering velocity.
Build the technical foundations for rapid growth.

Why SplitStay?

We're not trying to build another booking website.

We're building the coordination layer that sits before booking.

If successful, millions of group travel decisions could become dramatically easier.

If you're excited by difficult engineering challenges, meaningful ownership and building something from the ground up, we'd love to hear from you.

Our hiring process

We believe the best way to evaluate fit is by building together. Successful candidates will typically begin with a short collaboration under our Contributor Agreement. If both sides see a strong long-term fit, there is a clear opportunity to grow into a founding engineering or technical leadership role.