Lead Full Stack Engineer London, Bristol, Manchester

This role will close on the 31st August at 23:59 UK Time.

About the job

The Incubator for AI (i.

AI) builds AI products inside the UK government that change how public services work across education, health, planning, and parliament.

Small teams, startup pace, national-scale impact.

We are based in London, Bristol and Manchester, with hybrid working.

Full Stack Engineers build the products and services that bring AI capabilities to users: interfaces, APIs, data layers, infrastructure and delivery pipelines that make AI safe, reliable and useful for citizens and civil servants.

Our stack includes Python (Django, Fast API), Type Script, modern JS frameworks (React, Astro, Svelte), Postgre SQL, AWS and Terraform.

We integrate frontier LLMs through providers such as Amazon Bedrock, and the AI-integration landscape evolves as the ecosystem matures.

Job summary

We build a portfolio of AI products at different stages of maturity, from early discovery through to services running at scale.

You will be part of a small cross-disciplinary team working on one of these products, owning problems end-to-end and shipping real improvements for users.

Over time you may move between products as priorities shift, giving you breadth across different problem domains and technologies.

We’re looking for engineers who care as much about understanding the problem as writing the code, and who thrive when working closely with people from different disciplines.

What you'll do

• Partner with the Product Manager to shape the strategic direction of your product, translating organisational goals into delivery objectives and OKRs for the team.
• Own the technical architecture of your product, making final decisions on approach while bringing engineers along with the reasoning.
• Coordinate and prioritise engineering work across your team, balancing delivery pace with technical quality and sustainability.
• Develop a deep understanding of the problem space, participating in discovery, interrogating assumptions, and aligning on what success looks like.
• Create an environment where engineers do their best work through clear expectations, regular feedback, and support for growth.
• Maintain high engineering standards across the team through code review, testing practices, and operational discipline.
• Represent engineering in cross-team and leadership conversations, communicating technical trade-offs and risks clearly to non-technical stakeholders.
• Still write code, particularly on the hardest problems or where architectural decisions need to be validated through implementation.

Who you are

• Experience leading the technical direction of a product or team, including making architectural decisions and owning the consequences.
• A track record of working closely with product managers or equivalent roles to define goals, shape roadmaps, and connect engineering work to outcomes.
• Experience coordinating and growing engineers. You set clear expectations, give useful feedback, and create the conditions for others to do great work.
• Strong technical depth across the stack, with the judgement to know when to go deep and when to delegate.
• Clear communication with both technical and non-technical audiences. You can explain trade-offs, articulate risk, and build confidence in your direction.

You don't need to meet every criterion to apply. If this role excites you, we'd love to hear from you.

What we offer

• Career-defining projects with outsized impact
• Backing from the Prime Minister and No10 to scope and build transformative AI products.
• Unique opportunities to apply technology to transform the public sector and citizens' lives.
• Talented, supportive and mission-driven colleagues.
• Resources & access
• Access to frontier models and ample compute.
• Work with experts across national security, policy, AI research and adjacent sciences.
• A team culture and development support that prioritises personal growth.
• Opportunities to own important products early and develop them in small empowered teams.
• 5 days off learning and development, annual stipends for learning and development and funding for conferences and external collaborations.
• Life & family*
• Opportunity to work from London, Manchester or Bristol offices.
• Hybrid working, flexibility for occasional remote work abroad and stipends for work-from-home equipment.
• Generous annual leave - 25 days plus one additional day for each year of service
• Generous paid parental leave (up to 39 weeks full pay + option for additional unpaid time).
• On top of your salary, we contribute 28.97% of your base salary to your pension.
• Discounts and benefits for cycling to work, dental insurance, donations and retail/gyms.

*These benefits apply to direct employees. Benefits may differ for people joining through other employment arrangements such as secondments.

Salary is dependent on location and skills assessed at interview.

This is comprised of a Grade 6 base salary of £74,605–£82,860 for London or £69,675–£78,035 for national, plus a non-pensionable technical allowance of £7,750–£22,600.

Alongside a salary of £77,425–£105,460, we contribute 28.97% of your base salary to your pension.

Selection Process

Appointment is conditional on successfully completing UK Government SC clearance. Prior clearance is not required—we will sponsor and support you.

You should normally have been resident in the UK for 2 of the past 5 years.

Employment is conditional on obtaining and maintaining the required clearance(s).

More detail on clearance eligibility can be found onthe UK Government website: National security vetting: clearance levels - GOV.

In accordance with the Civil Service Commission rules, the following list contains all elements of the selection process.

• Accepted file types: pdf, doc, docx, txt, rtf
• Why would you like to join the Incubator for AI? (Max 500 words) *
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Nationality requirements

This job is open to the following groups

• UK nationals
• nationals of the Republic of Ireland
• nationals of Commonwealth countries who have the right to work in the UK
• nationals of the EU, Switzerland, Norway, Iceland or Liechtenstein and family members of those nationalities who have made a valid application for settled or pre-settled status under the European Union Settlement Scheme (EUSS)
• individuals with limited leave to remain or indefinite leave to remain who were eligible to apply for EUSS on or before 31 December 2020
• Turkish nationals, and certain family members of Turkish nationals, who have accrued the right to work in the Civil Service

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• Civil Service UK Diversity Questions
• Diversity monitoring

We know that we deliver better services when our workforce reflects the full range of backgrounds and experiences in the society we serve.

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