Product Engineer (Fullstack)

Cavendish Professionals; City Of London; On-site; GBP 70,000 - 110,000; Full time

Job summary

Cavendish (Recruitment) Professionals Ltd is sourcing a Product Engineer (Fullstack) for a London-based AI startup. You will own features end-to-end, collaborate with users, and help build an AI product at scale.

You'll work on modern JS/TS stacks, AI-powered workflows, real-time collaboration, and performance optimisations while partnering with Product, Design and AI teams to solve customer problems.

Qualifications

• Experience building full-stack apps in modern JavaScript/TypeScript environments.
• Experience with React and Node.js.
• Experience with cloud infrastructure (AWS).
• Experience with relational databases (PostgreSQL).
• Startup or product-led environment experience.
• Ability to take ownership from idea through to production.

Responsibilities

• Building new user-facing features from concept to production.
• Creating AI-powered workflows using the latest LLM technologies.
• Developing real-time collaboration features.
• Rapid 0-to-1 product development and experimentation.
• Optimising application performance, reliability and scalability.
• Working closely with Product, Design and AI teams to solve real customer problems.

Tools

TypeScript

React.js

Node.js

PostgreSQL

AWS

Terraform

Tailwind CSS

Framer Motion

Radix UI

Job description

Product Engineer (Fullstack) | London | AI Startup

I am working with one of Europe's fastest-growing AI startups who are seeking a Product Engineer (Fullstack).

Already trusted by some of the world's most innovative technology companies, they are now scaling rapidly following significant investment and are looking for engineers who enjoy solving difficult technical challenges at scale. This is not a role where you will spend months maintaining legacy systems. You will own features end-to-end, work directly with users, and help build one of the most exciting AI products on the market.

What you'll be working on:

• Building new user-facing features from concept to production
• Creating AI-powered workflows using the latest LLM technologies
• Developing real-time collaboration features
• Rapid 0-to-1 product development and experimentation
• Optimising application performance, reliability and scalability
• Working closely with Product, Design and AI teams to solve real customer problems

Tech Stack

• TypeScript
• React.js
• Node.js
• PostgreSQL
• AWS
• Terraform
• Tailwind CSS
• Framer Motion
• Radix UI

An interest in AI and LLM-powered products is highly desirable, although previous AI experience isn't essential.

You’ll likely have experience with:

• Building full stack applications in modern JavaScript/TypeScript environments
• React and Node.js
• Cloud infrastructure (AWS)
• ostgreSQL or other relational databases
• Shipping products in fast-paced startup or product-led environments
• Collaborating closely with designers and product managers
• Taking ownership from idea through to production

Cavendish (Recruitment) Professionals Ltd is proud to be an equal opportunities employer, and we believe that inclusion starts with the applicant. All qualified candidates will be considered for employment regardless of gender, race, age, sexual orientation, religion or belief