Harry Porter-mills
Senior Software Engineer II at Instacart
Ontario, Canada
Summary
🤩
Rockstar🎓
Top SchoolHarry Porter-mills is a senior software engineer and startup technical leader with 16 years of experience building scalable web and cloud systems. As technical co-founder of Relay he grew engineering from 1 to 64 people, led a pivot into cyber insurance, and architected product features and integrations that helped drive a 50x YoY recovery and eventual acquisition by At-Bay. He combines hands-on delivery—shipping bulk quoting, AI-powered data augmentation and SOC 2 Type 2-compliant infrastructure—with people-first leadership that sustained 100% retention through multiple layoffs. Comfortable across frontend, backend and DevOps (React, Node, GraphQL, Terraform, AWS), he thrives in early-stage environments that need rapid iteration and durable architecture. Now at Instacart on Enterprise Tools, he continues to focus on operational tooling for large retail partners while seeking opportunities to bring startup-scale technical leadership to new ventures. A former mentor and lecturer, he also quietly prioritizes coaching and career development as a force-multiplier for engineering teams.
16 years of coding experience
13 years of employment as a software developer
MEng Computer Systems and Software Engineering (with a year in industry), MEng Computer Systems and Software Engineering (with a year in industry) at University of York
Stackoverflow
530reputation
21kreached
17answers
3questions
Github Skills (200)
firmware10
firefox10
coffeescript10
terraform-provider10
api-client10
bash10
terraform10
powershell10
graph10
cron10
localhost10
chrome10
graphql-client10
whisper10
caching10
Programming languages (18)
Github contributions (5)
Haegin/marcy
Dec 2015 - Apr 2018
Contributions:11 PRs, 13 pushes, 3 branches in 2 years 4 months
apihmrcruby-clientrubygem
Haegin/apollo-sentry-link
Sep 2019 - Aug 2022
An Apollo Link to record GraphQL queries as Sentry breadcrumbs
Contributions:7 commits, 1 PR, 6 pushes in 2 years 11 months
breadcrumbssentrygraphql-querieslinkgraphql
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