Lead Engineer

Danny Hall

Full-stack engineering leader with 15+ years experience.
Specialising in UK Government digital services,
currently working with the Cabinet Office.

  • GDS Service Standard
  • WCAG 2.2 AA
  • Security Cleared
01

About

A full-stack engineer — equally comfortable architecting cloud infrastructure as building accessible, progressively-enhanced frontends.

With 15+ years in software engineering, I've developed deep expertise across the entire stack. My focus is Node.js and TypeScript, building robust services with Express and Hapi, and designing serverless architectures on AWS. I'm a specialist in authentication systems and identity management.

Today, I lead engineering teams at the Cabinet Office, delivering critical digital services that meet the highest standards of the GDS Service Standard — accessibility-first, progressively enhanced, and built to serve everyone.

15+ Years engineering
GDS Service Standard
Full Stack expertise
02

Experience

2021 — Present Current

Lead Engineer

Cabinet Office, UK Government

Leading engineering teams delivering critical digital services for the Cabinet Office. Responsible for technical direction, architecture decisions, and team development across high-profile government applications including the National Situation Centre and Joint Data and Analysis Centre (JDAC).

  • Technical leadership of cross-functional delivery teams
  • 24/7 high-availability systems supporting national crisis response
  • Architecture and system design for secure, scalable services
  • Stakeholder engagement and roadmap planning
  • Mentoring and growing engineering capability
2018 — 2021

Tech Lead — Identity Team

Co-op Digital

Led the newly formed Identity team at Co-op Digital, responsible for building and delivering single sign-on capabilities across Co-op's digital services. Unified authentication experience for millions of Co-op members and customers.

  • Helped architect and deliver Co-op's single sign-on platform
  • Led cross-functional team from inception to production
  • Integrated identity services across multiple Co-op digital products
  • Established engineering practices for the new team
2016 — 2018

Founder & Principal Consultant

Testloop Ltd

Founded and ran a specialist automation and test engineering consultancy, working with clients across Europe in fintech, travel, and e-commerce to build robust testing frameworks and quality practices.

  • Built and delivered cutting edge test automation frameworks for enterprise clients
  • Performance testing and infrastructure for high-traffic applications
  • Created open-source tooling used across the QA community
2008 — 2016

Principal Software Engineer in Test

Various (LateRooms, SpareRoom, Carnect, Code Computerlove)

Built technical QA capability and automation frameworks for fast-moving product teams. Focused on web and mobile testing infrastructure, CI/CD integration, and developer experience.

03

Skills

Backend

  • Node.js / TypeScript / Python
  • Express & Hapi
  • Serverless (Lambda, API Gateway)
  • Authentication & Identity
  • REST API design
  • PostgreSQL / DynamoDB / Redis

Frontend & GDS

  • GOV.UK Design System
  • Nunjucks / HTML / CSS
  • Progressive enhancement
  • Vanilla JavaScript / React / Svelte
  • Accessibility (WCAG 2.2 AA)
  • GDS Service Standard

AWS & Infrastructure

  • ECS & Elastic Beanstalk
  • Lambda & Step Functions
  • S3 / SES / SQS / SNS
  • CloudFormation / Terraform
  • Monoliths & Microservices
  • CI/CD (GitHub Actions, CodePipeline)

Leadership

  • Engineering team leadership
  • Technical architecture decisions
  • Stakeholder management
  • Agile delivery
  • Hiring & mentoring
  • Cross-government collaboration
04

Contact

Interested in working together or just want to connect? I'd love to hear from you.

For encrypted email, use my PGP public key.

Testloop Ltd remains available for select consulting engagements in government and public sector digital transformation.