Edd Mann

Lead Software Engineer

Avatar of Edd Mann

Website

eddmann.com

Email

the@eddmann.com

About

Lead Software Engineer with 15+ years' experience building reliable, evolvable systems using DDD, event sourcing, AWS Serverless, and event-driven architectures. Outside of client work, I build practical AI-assisted developer tools, including coding-agent harnesses, MCP servers, and tools for local development workflows. I also host Compiled Conversations, interviewing practitioners in software architecture, databases, AI tooling, and engineering practice.

GitHub

eddmann

LinkedIn

eddmann

X

edd_mann

Podcast

Compiled Conversations

Work Experience

Independent

Lead Software Engineer
– Present

Building end-to-end systems across embedded firmware, cellular telemetry, and cloud-native SaaS, with current engagements in the UK railway signalling sector.

  • Built a multi-tenant SaaS for parsing and reporting level-crossing signalling logs across multiple register formats. Delivered using Laravel, AWS Lambda, CDK, Twilio, and web-push.
  • Built ESP32 telemetry firmware with cellular GPRS, publishing radar-speed and barrier-strike events over MQTT to a Terraform-managed AWS ingest pipeline.
  • Owned delivery for operator clients, from domain modelling of crossing event semantics through trackside hardware to cloud-side reporting and alerting.

Instapro

Lead Software Engineer
–

Promoted to Lead Software Engineer after the MyBuilder and Instapro merger, shaping technical direction and leading key greenfield projects in a larger organisation.

  • Led a major retailer integration service, running event storming sessions and collaborating with stakeholders from design to rollout. Delivered using React, TypeScript, PHP, and AWS Serverless.
  • Built a chat platform as a micro-frontend vertical-slice service, enabling rapid delivery and experimentation with custom markup and Slack-like features.
  • Drove architectural decisions and guided teams in breaking up the monolith, adopting vertical-slice service ownership, and designing around subdomains and bounded contexts.

MyBuilder

Site Reliability Engineer
–

Transitioned to a Site Reliability Engineer role to focus on cloud-native infrastructure and platform enablement, supporting development teams and contributing to architectural decisions.

  • Led the development of a greenfield insurance application and underwriting system (MyBuilder Plus), delivered in under six months using DDD, Event Sourcing, CQRS, Hexagonal Architecture, Terraform, and Serverless technologies.
  • Migrated all services to Serverless (AWS Lambda), reducing operational overhead, empowering teams to focus on business value, and accelerating delivery.
  • Created internal developer tooling, including a CLI to streamline service discovery and local development, significantly improving developer productivity.

MyBuilder

Senior Software Engineer
–

Promoted to Senior Software Engineer, leading major product features, mentoring junior engineers, and shaping infrastructure strategy.

  • Led migration from on-premises to AWS using Terraform and many AWS services.
  • Built an event-sourced Tradespeople shortlist billing bounded context within the modular monolith.

MyBuilder

Software Engineer
–

Worked in a small, agile team applying modern engineering practices across the stack. Delivered both greenfield and brownfield projects, deepening my technical and business domain expertise.

  • Drove key product features that contributed to MyBuilder's acquisition by IAC in 2017.
  • Supported the migration to a modular monolith architecture, helping discover subdomains and architect bounded contexts.
  • Built a greenfield RESTful microservice for Tradespeople trade assessments, ensuring qualification standards on the platform.

Freelance

Web Developer
–

Took time out to travel internationally, with selected freelance web development engagements alongside.

360 Software Solutions

Web Developer
–

Delivered tailored web solutions for diverse clients, balancing new and legacy projects while honing communication and problem-solving skills.

  • Designed and implemented a modular MVC PHP content management platform, enabling rapid and efficient client website development.
  • Led the end-to-end development of a large-scale, web-based mobile search engine start-up, overseeing architecture and delivery.
  • Developed and launched a cross-platform mobile application for iOS and Android using Titanium, expanding client reach.

Education

Bachelor of Science in Internet Computing
University of Greenwich
–
First Class Honours

Skills

Leadership & Delivery
  • Product thinking
  • Stakeholder management
  • Roadmapping and prioritisation
  • Direction and architectural guardrails
  • Hiring, onboarding, and mentoring
  • Incident leadership
AI Tooling
  • MCP servers
  • Agent harnesses
  • LLM integration
Languages
  • Python
  • TypeScript
  • JavaScript
  • Rust
  • PHP
  • Swift
  • SQL
Frontend
  • React
  • Next.js
  • Redux Toolkit
  • Vite
  • BEM
  • Tailwind CSS
  • Styled Components
  • PWA (Service Workers, Workbox)
  • WebAssembly
Backend
  • Symfony
  • Laravel
Cloud & Infrastructure
  • AWS
  • Terraform
  • Serverless Framework
  • CDK
  • AWS Lambda
  • S3
  • EventBridge
  • SQS
  • SNS
  • RDS
  • ECS Fargate
Databases
  • PostgreSQL
  • MySQL
  • Redis
  • DynamoDB
Architecture & Practices
  • Domain-Driven Design
  • Event Sourcing
  • CQRS
  • Hexagonal Architecture
  • Event-driven Architecture
  • Micro-frontends
  • Microservices
Tooling & DevOps
  • Git
  • Unix
  • Docker
  • GitHub Actions
Testing & Monitoring
  • Automated testing
  • Continuous integration
  • Continuous delivery
  • AWS CloudWatch
  • Datadog
  • Grafana
  • Sentry

Projects

An educational Python coding agent built from primitives - extension-based architecture, multi-surface delivery (TUI, CLI, and FastAPI + WebSockets web shell), and provider-agnostic LLM support.

A native macOS terminal harness for local coding-agent workflows, running parallel agent panes with integrated tooling around the agent loop.

A personal AI assistant on a Raspberry Pi, accessible via Telegram. Self-extends through code-first skills with persistent memory, used daily for household tracking, reminders, and ad-hoc tooling.

Six MCP servers bridging LLMs to personal services - WhatsApp, Strava, Garmin Connect, Plex, Intervals.icu, and Obsidian - with paired CLI tools for the most-used integrations.

A SaaS that turns saved articles into narrated podcast episodes using LLMs for summarisation and text-to-speech, delivered directly to your podcast app.

A functional, C-like programming language designed for Advent of Code puzzles, with five independent implementations spanning tree-walking interpreters, a bytecode VM, and an LLVM compiler across Rust, Kotlin, and TypeScript.

RSVP web-application built using DDD, CQRS, Hexagonal Architecture, Event Sourcing, and deployed on AWS Lambda - a public reference for the architectural practices used in client work.

A Serverless Framework plugin for managing long-running Fargate ECS tasks, averaging over 18,000 weekly downloads on NPM.

Interests

Podcasting
  • Host of Compiled Conversations, interviewing leading practitioners in software and architecture - guests have included Scott Wlaschin (Domain Modeling Made Functional), Bruce Momjian (PostgreSQL core team), Chris Brousseau (LLMs in Production), and Vlad Khononov (Learning Domain-Driven Design).
  • Co-hosted Three Devs and a Maybe (2013-2019) with guests including Dan Abramov, Taylor Otwell, and Adam Wathan.
Chess
  • Designing a PCB-based electronic chessboard with local and remote play, exploring electronics and embedded systems.
  • Building chess-GPT variants to explore tokenisation, transformers, and LLM internals hands-on.
Running
  • Long-distance runner with 20+ marathons and an ultra completed.

Languages