CV

Johnny - Head of Engineering · Startups & Scale-ups · Ruby on Rails · AI-assisted delivery

I’m Head of Engineering, hands on and close to the code. I build production systems where business intent, operational reality, and implementation have to line up, especially when mistakes are expensive.

Summary

Experience

Head of Engineering (hands-on) / Tech Lead, Ruby on Rails at Materials Market

2021-11-01 to present

  • First technical hire
  • transitioned from agency to in-house engineering

Tech Lead, Ruby on Rails at Kudocs

2020-09-01 to 2021-11-01

  • Led LegalTech secretarial SaaS delivery, team standards, release discipline, and internal APIs/integrations including Companies House and Stripe

Full Stack Ruby on Rails at Savantis Tech Ltd

2011-10-01 to 2018-02-01

  • Selected earlier role from CV (see full CV for details)

Tech Lead, Ruby on Rails at Clixifix

2013-01-01 to 2017-09-01

  • Led SaaS platform for defect/repair management in construction
  • owned end-to-end delivery and operational scale

Tech Lead, Ruby on Rails at Happity

2018-02-01 to 2020-09-01

  • Owned full lifecycle of e-commerce Rails product, reliability/security improvements, and integrations including Stripe, Intercom, SendGrid, Google services

Ruby on Rails Developer (Contract) at CNS Group

2016-05-01 to 2018-05-01

  • Built cyber security benchmarking Rails app with on-prem deployment model and secure GitLab CI + Capistrano release workflow

Applications Developer (Placement) at Procter & Gamble

2003-07-01 to 2004-09-01

  • Selected earlier placement role from CV

Ruby on Rails Developer (Contract) at Beef

2012-10-01 to 2012-12-01

  • Selected earlier contract role from CV (see full CV for details)

IP Security Engineer (Placement) at O2 Ireland

2005-06-01 to 2005-10-01

  • Selected earlier placement role from CV

Software Developer, Ruby on Rails at Savantis Ltd

2005-11-01 to 2011-10-01

  • Selected earlier role from CV (see full CV for details)

Data status: last synced from notion at 2026-03-15T14:10:33Z.