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 build

Share new Claude Code workflows and development techniques across the team

Improve how we prototype, test, deploy and monitor products

Document the things that matter without creating unnecessary process

Help create a culture where talented individuals have the autonomy to build

The Kind of Engineer We're Looking For

The most important characteristic is ownership .

You don't need someone to turn a problem into twenty Jira tickets before you can start.

You can hear:

"Could we build something that does this?"

…and immediately start thinking about the user experience, architecture, APIs, data model, AI components and fastest route to getting a working version in front of someone.

You're comfortable making decisions.

You're comfortable being wrong, learning quickly and changing direction.

And when something you've built breaks, your instinct is to understand it and fix it.

What You'll Need

Strong full-stack software engineering experience

The ability to independently build and deploy production web applications

Strong experience across modern front-end and back-end development

Experience designing and working with APIs, databas