Full-Stack AI Product Engineer

Full-Stack AI Product Engineer
Location: Manchester, UK — hybrid, minimum three days a week in office
Reports to: Chief AI Officer
About NewGen
Welcome to NewGen. We're a global social creative and creator agency made up of over 100 talented people worldwide, with offices in London, Manchester, New York and Paris.
We partner with leading brands to shape culture, tell stories that matter and harness the power of social-first creative, creators and technology to drive meaningful impact.
Founded by our 30-under-30 co-founders, NewGen is an independent agency working with some of the world's biggest brands. Privately owned and built to challenge the big networks and stale traditional agencies, we move fast, live social and believe fresh ideas can compete with anyone.
Our work is trusted by brands including Pepsi, Samsung, Amazon, SEGA and Cash App, and we're the agency of choice for leading creators shaping culture today.
The Role
We're looking for a Full-Stack AI Product Engineer to join our growing AI team and take ownership of building, shipping and evolving AI-powered products.
This is not a traditional software engineering role.
We are looking for a highly autonomous builder who can take an idea from a conversation or rough brief and turn it into a working product, rapidly.
You'll move across the entire product lifecycle:
Understanding the problem
Deciding how to solve it
Building the front end and back end
Integrating APIs and AI models
Deploying the product
Putting it in front of clients
Collecting feedback
Fixing bugs
Shipping the next version
You'll be expected to own what you build.
There won't always be a detailed specification, a perfectly groomed backlog or another team waiting to take over at the next stage. You'll work directly with our Chief AI Officer, clients and internal teams to understand what needs to exist, and then make it exist.
Claude Code Is Central to How We Build
We believe AI-assisted development fundamentally changes how quickly small, highly capable teams can ship software. Deep enablement with Claude Code is therefore a mandatory part of this role, not a nice-to-have.
We want someone who has embraced this new way of engineering: using Claude Code and modern AI development tools to dramatically accelerate prototyping, development, debugging, testing and iteration while still making strong technical decisions and taking responsibility for the software they ship.
Build. Ship. Learn. Improve. Repeat.
What You'll Do
1. Build Products End to End
Own products and features from initial concept through to production deployment
Build across the full stack, including:
User interfaces
Application logic
APIs
Databases
Authentication
Third-party integrations
AI systems
Turn loosely defined ideas and client problems into working software without waiting for exhaustive specifications
Make pragmatic technical and product decisions that keep projects moving
Take responsibility for the products you build after launch, including reliability, bugs, improvements and new features
Move comfortably between greenfield products and improving existing applications
2. Build AI-First with Claude Code
Use Claude Code as a core part of your development workflow every day
Use AI-assisted development to dramatically increase the speed at which ideas become production software
Rapidly prototype approaches, evaluate them and turn the strongest ideas into robust products
Use Claude Code across:
Planning
Implementation
Refactoring
Debugging
Testing
Documentation
Continually experiment with new AI development workflows, models, agents and tooling
Help define how an AI-native engineering team should operate
Hands-on Claude Code experience is mandatory for this role.
We're specifically looking for engineers who see AI coding tools as a fundamental change to software development rather than an occasional productivity aid.
3. Ship Relentlessly
Get working versions of products into users' hands quickly
Favour fast feedback loops over long development cycles
Deploy, observe, learn and iterate
Diagnose and fix production issues without waiting for someone else to own the problem
Respond quickly to client feedback and product opportunities
Continuously improve existing products rather than considering them "finished" after launch
We value velocity with ownership. Moving quickly does not mean throwing software over the wall. It means being accountable for making it work.
Own NewGen Multiple
A major initial focus will be NewGen Multiple, our proprietary technology platform and one of the biggest bets we're making as an agency.
Multiple is already live, already being used with clients and already gaining attention at industry events. You'll play a major role in taking it to the next level.
You'll:
Own the technical development and continued evolution of Multiple
Build and ship new functionality
Improve existing features and user journeys
Maintain and evolve the architecture as the platform grows
Integrate social platforms, third-party services and AI capabilities
Respond directly to bugs, feedback and client requests
Identify opportunities to improve the product without needing to be told what to build
Balance rapid delivery with reliability, security and maintainability
Work Directly With Clients
This is not an engineering role hidden behind a product team.
You'll regularly be close to the people using what you build.
You'll:
Join client conversations to understand problems first-hand
Translate ambiguous client needs into technical solutions
Demo products and new functionality to clients and senior stakeholders
Explain technical concepts clearly to non-technical audiences
Gather feedback directly and turn it into improvements
Support pitches, prototypes and experiments where technology can unlock new opportunities
You should be equally comfortable opening a codebase and opening a client presentation.
Own Integrations
Build and maintain integrations with social platforms and third-party APIs
Own integration health, authentication, permissions and platform compliance
Debug issues across external APIs and services
Stay ahead of platform changes and quickly adapt products when APIs or capabilities change
Identify new APIs, models and technologies that could create useful product functionality
Help Build the AI Engineering Function
We're building a different kind of technology team inside NewGen.
You'll work closely with the Chief AI Officer and wider AI team to:
Establish AI-native development practices
Create reusable systems, components and infrastructure that make future products faster to

Employment type
Full-Time

Work arrangement
No