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For Companies At a Glance
- Tasks: Join a high-calibre team to build AI-native products and shape technical direction.
- Company: Exciting generative AI start-up in Central London with a focus on innovation.
- Benefits: Competitive salary up to £100k, meaningful equity, and a supportive team environment.
- Why this job: Make a real impact in a 0→1 engineering role with deep ownership.
- Qualifications: Full-stack engineering experience and ability to navigate ambiguity.
- Other info: Work closely with founders and influence core platform architecture.
The predicted salary is between 72000 - 108000 £ per year.
Salary: Up to £100k + meaningful equity
Location: Central London Offices, On-site (Please note: sponsorship is not available at this time.)
The Role
You’ll join a small, high-calibre engineering team building AI-native products from the ground up. In this role, you will work across the full stack to architect, build, and ship production systems powering multimodal AI agents. You’ll design intuitive interaction models for human–AI collaboration, develop scalable backend services, and rapidly prototype new features at pace. You’ll also work directly with the founding team to shape technical direction, defining the platform architecture and helping build a genuinely new category of agent-led product development. This is a true 0→1 engineering environment where you’ll have deep ownership and impact.
Non-Negotiables
- Full-stack engineering experience with production delivery
- Ability to ship end-to-end features in containerised environments
- Comfortable navigating ambiguity, shifting priorities, and rapid experimentation
- Strong problem-solving mindset with ownership and resilience
Nice to Haves
- Founder or founding engineer background
- Experience building interfaces for agentic workflows
- Exposure to LLMs, multimodal models, or agent UX (AX)
- Experience shaping technical strategy in early-stage teams
What You’ll Work With
- FastAPI backend development
- React engineering and modern frontend tooling
- Supabase or similar cloud-native backend tools
- LLM agent workflows: tool calling, memory, retries, context updates
- Human–AI interaction models and agent UX (AX) design
- System design, architecture evolution, and scaling pathways
- MCP integrations and multimodal agent capabilities
Why join
You’ll join a deeply AI-native engineering culture where you’ll help define how humans and agents build products together. You will:
- Influence core platform architecture during its foundational stage
- Build and iterate on multimodal agent systems
- Prototype and refine new models of human–agent collaboration
- Work closely with founders on strategy and product direction
- Be part of a high-intensity, supportive team obsessed with building exceptional products
Product Engineer employer: Prism Digital
Contact Detail:
Prism Digital Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Product Engineer
✨Tip Number 1
Network like a pro! Reach out to people in the industry, attend meetups, and connect with potential colleagues on LinkedIn. We all know that sometimes it’s not just what you know, but who you know that can help you land that dream job.
✨Tip Number 2
Show off your skills! Create a portfolio or GitHub repository showcasing your projects, especially those related to FastAPI, React, or AI. We want to see your work in action, so make it easy for hiring managers to check out what you can do.
✨Tip Number 3
Prepare for interviews by practising common technical questions and coding challenges. We recommend doing mock interviews with friends or using online platforms. The more comfortable you are, the better you’ll perform when it counts!
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who take the initiative to engage directly with us.
We think you need these skills to ace Product Engineer
Some tips for your application 🫡
Show Your Full-Stack Skills: Make sure to highlight your full-stack engineering experience in your application. We want to see how you've shipped end-to-end features and tackled production delivery, so don’t hold back on those examples!
Embrace the Ambiguity: In our fast-paced environment, being comfortable with ambiguity is key. Share instances where you've navigated shifting priorities or rapidly experimented with new ideas. It’ll show us you’re ready for the challenge!
Problem-Solving Mindset: We love a strong problem-solver! In your application, give us a glimpse of your ownership and resilience when faced with tough challenges. Tell us about a time you turned a problem into an opportunity.
Apply Through Our Website: Don’t forget to apply through our website! It’s the best way for us to keep track of your application and ensure it gets the attention it deserves. We can’t wait to see what you bring to the table!
How to prepare for a job interview at Prism Digital
✨Know Your Tech Stack
Make sure you’re well-versed in FastAPI, React, and Supabase. Brush up on your full-stack engineering skills and be ready to discuss how you've used these technologies in past projects. Be prepared to share specific examples of how you’ve shipped end-to-end features.
✨Showcase Problem-Solving Skills
This role requires a strong problem-solving mindset. Think of scenarios where you navigated ambiguity or shifting priorities. Prepare to discuss how you approached challenges and what solutions you implemented, especially in a fast-paced environment.
✨Understand Human-AI Collaboration
Since the role involves designing interaction models for human–AI collaboration, do some research on current trends in this area. Be ready to share your thoughts on how to improve user experience in agentic workflows and any relevant experiences you have.
✨Engage with the Founding Team's Vision
Familiarise yourself with the company’s mission and the founding team’s vision. Prepare insightful questions that show your interest in shaping the technical direction and platform architecture. This will demonstrate your enthusiasm for being part of their journey from the ground up.
