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Sean Floyd

Senior Software Engineer focused on scaling systems and making developers' lives better

Technical Focus

Senior Software Engineer with expertise in scaling Rails applications and optimizing developer workflows. Recently exploring AI product development. Proven track record supporting multi-tenant platforms with millions of users.

Available for global remote opportunities. Right to work in Canada, EU, and US πŸ‡¨πŸ‡¦ πŸ‡ͺπŸ‡Ί πŸ‡ΊπŸ‡Έ. B2B contracts via US LLC.

🎯 Recent Impact

At Hivebrite:

  • Reduced large-scale data export time by 98% for communities with 1M+ users
  • Optimized background jobs for 66% runtime reduction (1.5k compute hours monthly)
  • Cut infrastructure costs €160k annually through targeted performance optimization
  • Reduced build times 50% while doubling deployment frequency
  • Led platform-wide Ruby 3 and Rails 7 migration

πŸ›  Technical Skills

Core: Ruby Rails Python

Infrastructure: Docker Kubernetes CI/CD

Data: PostgreSQL Elasticsearch

Performance: Load Testing Monitoring

πŸš€ Key Projects

  • πŸ“¦ still_active
    Tired of unmaintained dependencies? Built a RubyGem that helps teams identify active vs abandoned dependencies. Used by Rails teams for dependency verification.

  • 🎡 Jazzify
    Started as "can you help with our Excel sheets?" for Ottawa Jazz Festival. 9 years later, it's a full Rails platform managing thousands of volunteer applications. Complete volunteer recruitment modernization.

  • πŸ”¬ Stream Processing Research
    Made ML stream processing 160x faster during grad school. Novel algorithm for handling partially labeled data streams. Published at ECML PKDD workshop.

πŸ’‘ What I'm About

  • Performance Optimization: Finding and fixing bottlenecks at scale
  • Developer Experience: Automating the boring stuff
  • System Design: Building things that scale well
  • AI & ML: Exploring practical applications
  • Impact Focus: Measurable improvements

Let's Talk

Open to roles in system scaling, AI product development, and performance optimization. Available for work in EU/US/Canada, or B2B contracts through my LLC.

Looking for:

  • Remote-first teams with async workflows
  • Technical challenges worth solving
  • Clear impact potential
  • Room for experimentation

Check availability | Send email

Based wherever there's stable internet and good food β˜•οΈ 🍜

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