ALEXANDER NEILL
Senior Software Engineer • 20 Years Experience
Ruby on Rails • Go • Python • Modern UI
ALEXANDER NEILL
Senior Software Engineer • 20 Years Experience
Ruby on Rails • Go • Python • Modern UI
PROFESSIONAL EXPERIENCE
Happity
Senior Software Engineer - May 2025 - June 2026
UK platform connecting parents with baby and toddler classes.
• Drove delivery of booking widget, provider onboarding & promoted listings ads
• Introduced BigQuery analytics pipeline + major performance & observability gains
• Integrated Claude Code as a daily coding assistant, writing a comprehensive codebase guide to improve AI output quality, and built custom skills for prompt generation and automated staging deployments
• Shipped GitHub Actions workflows to automate Jira ticket transitions on PR approval
Read more
• Introduced BigQuery analytics pipeline + major performance & observability gains
• Integrated Claude Code as a daily coding assistant, writing a comprehensive codebase guide to improve AI output quality, and built custom skills for prompt generation and automated staging deployments
• Shipped GitHub Actions workflows to automate Jira ticket transitions on PR approval
Black Square Media
Senior Software Engineer (13 years) - 2012 - 2025
Boutique consultancy building high-throughput ad-tech and data pipelines for global brands.
• High-throughput Go ad services for Verve & Infectious (Netflix, McDonald’s, Adidas)
• Rebuilt Verve Location Services (VLS) in Go - ultra-fast device/location engine
• Reuters.tv video pipeline (DASH/HLS) + Nielsen scoring (10% → 80% match rate)
• VidMob ETL pipelines via Databricks integrating 6+ major ad platforms
• Rebuilt Verve Location Services (VLS) in Go - ultra-fast device/location engine
• Reuters.tv video pipeline (DASH/HLS) + Nielsen scoring (10% → 80% match rate)
• VidMob ETL pipelines via Databricks integrating 6+ major ad platforms
Key clients:
Read more
Rawnet
Lead Web Developer - 2010 - 2012
Digital agency delivering varied web platforms for major clients.
• Led multi-tenant platforms for BBC Insight, O2, Williams F1, Jordan Publishing
• Created & open-sourced several Rails gems still used today
• Created & open-sourced several Rails gems still used today
Key clients:
Read more
AOL Advertising
Systems Developer - 2007 - 2010
Formerly one of the world's largest ad networks, later sold to Verizon and merged into Yahoo.
• Part of 4-man UK innovation team (SCRUM) delivering European multilingual apps
• Built large-scale REST reporting, creative testing & sales dashboards
Read more
• Built large-scale REST reporting, creative testing & sales dashboards
Debatewise
Lead Developer - Freelance - 2006 - 2007
Website where people discuss topics and formulate a balanced debate.
• Built proof-of-concept app, then architected social features & scalable platform
• Freelance lead on balanced debate discussion site
Read more
• Freelance lead on balanced debate discussion site