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Alfie Dennen - Product leadership and innovation

  • About
  • Work
  • Blog

Bringing Generative AI into Government

Since early 2021 I've been Digital Senior Product Manager – AI Operations - in DBT's Digital, Data & Technology (DDaT) directorate.
I lead a multi-disciplinary team with two overlapping missions:

1. Ship real products that help colleagues do better work today.

2. work with the AI Factory to operationalise new AI features and services across our infrastructure.

Redbox

An AI service enhancing and augmenting complex government knowledge work.

In late 2023, policy advisers asked whether ChatGPT-style tooling could safely accelerate evidence reviews. DBT collaborated with DSIT's i.AI incubator, and the result is Assist – a secure workspace where staff can interrogate policy documents, prompt against multiple models, and trace every answer back to source.

We forked the core Redbox repo to build DBT's custom version, focused on advanced document interrogation and agentic workflows.

How it's built – GOV.UK Design System front-end on Django, Anthropic and Amazon models via AWS Bedrock, Langchain for agentic design.

Redbox Tools Built on the modular Tools architecture

InvestLens – TBA, currrently NDA

Submissions Checker – multi-agent tool providing reliable feedback on draft ministerial submissions

Where we are – Live across DBT processing Official-Sensitive data and documents.

Leaving DBT Service

Offboarding used to mean emails, spreadsheets and nervous rummaging for lost kit. We replaced that with a single guided journey: line manager answers a few questions, the system closes accounts, books courier laptop pickup, and stops pay on the correct day.

Built with Python/Django, integrated via APIs with Oracle and ServiceNow. Led through alpha, private beta, public beta, and live with successful service assessments at each stage.

IRAP Service

Unified platform for all aspects of data protection and cyber governance, with programmatic approval for low-risk requests. Led through alpha, private beta, public beta, and live with successful service assessments at each stage.

Building the guard-rails

Contributed to DBT's Generative-AI Governance Framework – covering data classification, model selection, prompt hygiene and human in-the-loop design. Shared under open licence because good guard-rails should be easy to copy.

Talking, teaching, learning

- Speaker: Analysis-in-Government Month 2025 – "Redbox: Generative AI in Government"

- Accelerating outcomes with AI at DBT – Gov.uk Digital Trade Blog

- Launching the new DBT Leaving Service – Gov.uk Digital Trade Blog

- LinkedIn essays on AI strategy and agentic AI accountability

*If you’re building something similar or want to compare notes, feel free to get in touch.