Owen Thomas | B Corp™
x9 Product Engineers | Mid / Senior / Lead | Tech Agnostic - Go, Python, JVM, TS, Rust, Kotlin | Production Agentic AI | London Hybrid (3 Days) | £80-140k + Equity | Visa + Relocate
Requirements
Candidates should have strong backend and frontend engineering fundamentals, experience shipping customer-facing products to production, and a product mindset with end-to-end ownership. They should communicate and collaborate effectively, thrive in fast-paced and ambiguous environments, and be interested in AI; experience with Go is not required.
Job Description
x9 Product Engineers | Mid / Senior / Lead | Tech Agnostic - Go, Python, JVM, TS, Rust, Kotlin | Production Agentic AI | London Hybrid (3 Days) | £80-140k + Equity | Visa + Relocate
The Company -
We're partnering with a well-funded, high-growth technology company building a next-generation digital platform, with AI at the centre of its product strategy.
The business has established strong product-market fit, secured significant investment and is now entering an exciting phase of growth, with ambitious plans to expand its engineering teams, launch new AI-powered products and scale internationally.
With a strong customer base, exceptional leadership, and significant growth opportunities ahead, they're looking for exceptional Product Engineers who can help shape the next generation of their platform.
The Role - x9 Product Engineers | Mid / Senior / Lead | Tech Agnostic - Go, Python, JVM, TS, Rust, Kotlin | Production Agentic AI | London Hybrid (3 Days) | £80-140k + Equity | Visa + Relocation
You'll join a small, highly talented Product Engineering team building customer-facing products used by thousands of customers.
This is a genuine Product Engineering role, where you'll take ownership of problems rather than simply delivering tickets.
You'll work closely with Product, Design and senior leadership to shape, build and ship features that directly impact customers and the wider business.
With significant engineering growth planned, there's a real opportunity to influence technical decisions, product direction and how AI is embedded across the platform.
What You'll Be Doing - x9 Product Engineers | Mid / Senior / Lead | Tech Agnostic - Go, Python, JVM, TS, Rust, Kotlin | Production Agentic AI | London Hybrid (3 Days) | £80-140k + Equity | Visa + Relocation
- Taking ownership of customer-facing products from concept through to production.
- Building AI-native features that transform how customers interact with the platform.
- Developing scalable backend services and intuitive frontend experiences.
- Working closely with Product and Design to solve complex, ambiguous problems.
- Building and shipping quickly, gathering customer feedback and continuously iterating.
- Using modern AI development tools to accelerate engineering productivity.
- Contributing to architecture, technical decisions and engineering standards.
- Working directly with customers to understand their challenges and improve the product.
This is a fast-moving, high-ownership engineering environment where engineers are expected to think commercially, challenge ideas and influence what gets built.
Tech Stack - x9 Product Engineers | Mid / Senior / Lead | Tech Agnostic - Go, Python, JVM, TS, Rust, Kotlin | Production Agentic AI | London Hybrid (3 Days) | £80-140k + Equity | Visa + Relocation
- Go / Golang (Backend)
- React / TypeScript
- Modern cloud infrastructure
- AI-powered development tools
- Modern CI/CD practices
Tech agnostic: Experience with Go isn't required. They're far more interested in exceptional Product Engineers who can adapt, learn quickly and take ownership on agentic AI features to customers.
What They're Looking For - x9 Product Engineers | Mid / Senior / Lead | Tech Agnostic - Go, Python, JVM, TS, Rust, Kotlin | Production Agentic AI | London Hybrid (3 Days) | £80-140k + Equity | Visa + Relocation
- Strong software engineering fundamentals across backend and frontend development.
- Experience building and shipping customer-facing products into production.
- Genuine product mindset, thinking beyond the code and understanding commercial impact.
- Experience taking ownership of complex problems end-to-end.
- Comfortable operating in fast-paced startup or scale-up environments.
- Strong communication skills and ability to collaborate across Engineering, Product and Design.
- Entrepreneurial mindset, proactive and comfortable working with ambiguity.
- Interest in AI and using modern AI tools to improve engineering productivity.
Bonus Experience:
- Building and deploying AI-native features into production.
- Go, React or TypeScript.
- Experience in early-stage, high-growth engineering teams.
- Exposure to FinTech, SaaS or complex B2B/B2C platforms.
- Track record of building products from scratch.
Why Join - x9 Product Engineers | Mid / Senior / Lead | Tech Agnostic - Go, Python, JVM, TS, Rust, Kotlin | Production Agentic AI | London Hybrid (3 Days) | £80-140k + Equity | Visa + Relocation
- Join a well-funded, high-growth technology company entering its next major growth phase.
- Help build next-generation AI-native products with genuine commercial impact.
- Real product ownership, with engineers influencing what gets built and why.
- Work on technically challenging products combining complex workflows, data and AI.
- Small, high-performing engineering teams with ambitious hiring plans.
- Opportunity to build products used by customers internationally.
- London hybrid working (3 days per week).
- Competitive salary + meaningful equity.
- Private healthcare, learning budget and strong benefits package.
If you're a strong, product-minded Software Engineer who enjoys building customer-facing products, taking real ownership and working in fast-moving environments, this is a fantastic opportunity to make a genuine impact.
****Please apply with a Product Engineer-focused CV****, highlighting products you've owned and shipped into production, commercial impact and examples of working in high-ownership and fast paced engineering environments.
Apply with your CV and we'll be in touch if there's alignment :)
Skills
About Owen Thomas | B Corp™
We are a relationship-driven recruitment partner, specialising in Software Engineering across Contract and Permanent roles in the UK & Europe. But we’d like to think there’s a little more to us than that. We're a B Corp™ and have pledged a commitment to 1% Of All Sales. Our mission is to go beyond recruitment and actively improve the world around us. Our community is the reason we love what we do and we are committed to fostering a diverse and inclusive one. For us, ‘fostering diversity’ is not a blanket approach or a buzzword; it is a nuanced practice that requires a commitment to empathy, transparency and authenticity. It involves understanding and valuing the unique perspectives and experiences that each individual brings to the table. We make a meaningful impact by genuinely caring for the people we represent and the careers we help shape. While we do not claim* to change the world, we will do our very best to leave it in a better place than we found it. *we do claim to make the best cup of tea. Part of the OT Group.