Join Stratum as a Founding Engineer to architect production-grade agentic AI systems for civil engineering. You will build the backbone of platforms that condense weeks of manual technical assessments into hours. Working directly with the CTO, you'll own backend architecture and AI integration, driving rapid deployment cycles for a fast-growing customer base.
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Founding Software Engineer at Stratum
Stratum is a London-based AI startup revolutionizing civil engineering by automating complex technical assessments like flood risk. Founded by experts from the UK AI Security Institute and Arup, they’ve already generated £400k in pilot revenue and are scaling to 10% of UK councils. As a Founding Engineer, you’ll architect agentic systems using Python and GCP, working directly with the CTO to replace manual weeks of work with hours of AI-driven precision. Join a team that combines deep research expertise with real-world impact on infrastructure and climate resilience.
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Location
London, United Kingdom
Compensation
£100k + Equity
Company
Stratum
Role overview
Engineering5–10+ employees
Stratum is an AI startup founded by researchers from the UK AI Security Institute and physical engineers from firms like Arup, Atkins, Jacobs etc. Our mission is to radically disrupt the engineering consulting industry whose incentive structures underserve society at scale. We are building a platform for engineers placing technology at the heart of every discipline, accelerating how quickly things can be built, helping better mitigate climate change and drive sustainable growth and development.
What you will do
- Architect and build robust, production-ready backend systems using Python and GCP (Cloud Run, Pub/Sub, Postgres) to power agentic workflows.
- Design and implement full-stack features in React, translating complex engineering requirements into intuitive, AI-native workspaces for technical experts.
- Lead the development of agentic architectures, evaluating and implementing cutting-edge LLM techniques like RAG and MCP for regulatory-grade precision.
Who this is a fit for
- 4+ years of experience operating production backend systems, with deep expertise in Python, GCP, and Infrastructure as Code using Terraform.
- Proven track record of shipping agentic AI systems where model evaluation, prompt design, and orchestration were central engineering challenges.
- Possesses Founding Engineer DNA—a pragmatic, autonomous builder who thrives in ambiguity and has experience scaling products from zero to one.
Why this role is remarkable
- True founding-level ownership with significant equity and a direct line into product strategy and engineering culture.
- Impressive traction including £400k pilot revenue in seven months and adoption by 10% of all UK local councils.
- Work at the frontier of AI for the physical world, solving high-stakes problems in climate resilience and infrastructure.
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.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.
I recruit from Jack’s network and make the intro when I spot a great match.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.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
Meet Jack
What happens next?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If your profile’s a match and Stratum wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.