Product Engineer

Prism Digital; England; On-site; GBP 90,000 - 100,000; Full time

Job summary

A forward-thinking digital company in Central London is seeking an Associate Full-stack Engineer to join their high-calibre team focusing on AI-native product development. You will build and ship production systems that are crucial for multimodal AI agents. The role involves designing human–AI interaction models, and developers with experience in React and cloud-native tools are highly preferred. A strong problem-solving mindset is essential. Competitive salary and equity offered in a fast-paced environment.

Qualifications

• Experience in building and shipping end-to-end features in containerised environments.
• Comfortable with rapid experimentation.
• Strong ownership and resilience skills.

Responsibilities

• Architect and deliver AI-native products from the ground up.
• Design interaction models for human–AI collaboration.
• Define platform architecture and influence technical strategy.

Skills

Full-stack engineering experience with production delivery

Problem-solving mindset

Ability to navigate ambiguity and shifting priorities

Tools

React

Supabase

Job description

Base pay range

Direct message the job poster from Prism Digital

• Salary: Up to £100k + meaningful equity
• Location: Central London Offices, On‑site
• 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

• 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

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

Seniority level

Associate

Employment type

Full‑time

Job function

• Engineering and Information Technology
• Software Development, IT Services and IT Consulting, Technology, Information and Media