Section400

Expertise

Areas7 capabilities
Evidence5 roles

Technology supports the story. The matrix shows where each capability was earned, and the tools come last.

Capabilities by role

Capabilities by role. Led Practiced Not a focus
CapabilityCarrier networksVoice servicesCommunicationsMedia publishingYippify
401Engineering leadershipPracticedLedLedLedLed
402Product engineeringNot a focusPracticedLedLedLed
403Software architecturePracticedPracticedLedLedLed
404Cloud & infrastructureLedLedLedPracticedLed
405Government technologyNot a focusNot a focusNot a focusNot a focusLed
406AI & dataNot a focusNot a focusNot a focusPracticedLed
407Hands-on engineeringLedPracticedLedPracticedLed

Engineering leadership

I set direction, make the calls, and build teams that keep shipping after I step back.

What I do

  • Architecture decisions and technical strategy
  • Mentoring engineers and growing leads
  • Scaling teams and delivery process
  • Cross-functional work with product, QA and executives

Product engineering

Product work: web and mobile applications people actually use, built to keep changing.

What I do

  • Web and mobile product delivery
  • Front-end architecture and performance
  • Accessible, testable interfaces

Tools

React, Next.js, TypeScript, Python, Django, Ruby on Rails

Software architecture

Systems whose boundaries follow the business, and that fail in ways you can reason about.

What I do

  • API and service design
  • Event-driven systems and messaging
  • Data modelling and caching
  • Incremental migration of legacy systems

Tools

REST APIs, Microservices, Kafka, PostgreSQL, Redis

Cloud & infrastructure

Infrastructure as code, pipelines that make releasing boring, and costs that follow revenue.

What I do

  • Multi-region deployment and routing
  • Reliability, capacity and cost planning
  • Security as a release gate
  • CI/CD and environment automation

Tools

AWS, ECS, Lambda, S3, CloudFront, Docker, Terraform, CI/CD

Government technology

Public services where accessibility, security and hand-over are requirements, not extras.

What I do

  • Incremental modernization of services the public relies on
  • Accessibility (WCAG) and security as release gates
  • Procurement-aware delivery and agency hand-over

Tools

Python, Django, React, AWS, Terraform

AI & data

LLMs used where they are reliable, with people and evaluation where they are not.

What I do

  • LLM integrations and retrieval (RAG)
  • Document processing pipelines
  • ML-backed product features
  • Workflow automation

Tools

LLM APIs, RAG, Vector search, Python

Hands-on engineering

I still write code: prototypes, reviews, and the hard parts of the build.

What I do

  • Prototyping the riskiest part first
  • Code review for judgement, not only style
  • Debugging production across the stack

Tools

Python, TypeScript, SQL, Docker