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delaanthonio/README.md

Hi, I'm Dela πŸ‘‹

Senior Backend Engineer who ships production-ready services with built-in operational excellence. I specialize in the unglamorous but critical work of modernizing legacy systems - the kind of migrations that have been "planned for next quarter" for three years.

🎯 What I Do

I'm the engineer teams call when:

  • They need to migrate something with zero downtime (like that time I moved production traffic between Kubernetes ingress controllers using regex routing)
  • Senior engineers want a second opinion on observability strategy
  • A legacy system needs to be surgically decomposed without breaking everything
  • Someone needs to bridge the gap between "it works on my machine" and "it runs reliably in production"

πŸ”§ Technical Focus

# My sweet spot: Backend services that don't wake anyone up at 3am
expertise = {
    "languages": ["Python", "TypeScript", "SQL"],
    "backend": ["Django", "FastAPI", "Celery"],
    "infrastructure": ["AWS", "Kubernetes", "Terraform"],
    "data": ["PostgreSQL", "Redis", "Kafka", "RabbitMQ"],
    "observability": ["New Relic", "OpenTelemetry", "Distributed Tracing"]
}

# What I'm known for
specialties = [
    "Zero-downtime migrations",
    "Legacy system modernization", 
    "Turning observability data into architectural decisions",
    "Making services self-sufficient (no DevOps handholding required)"
]

πŸ“Š Impact Over Activity

  • $1M+ daily revenue enabled through in-house carrier test processing system
  • $200k annual savings from consolidating 8 services into 3
  • 50+ endpoints successfully migrated after analyzing 6 months of production traffic
  • 27% reduction in API surface area while maintaining all functionality
  • 99.9% uptime because I build services with monitoring baked in

πŸš€ Current Adventures

  • Building SaaS products to sharpen my full-stack edge
  • Exploring event-driven architectures at scale
  • Contributing to internal observability best practices
  • Mentoring engineers on crossing the frontend/backend divide

πŸ’‘ Engineering Philosophy

I believe in:

  • Data over opinions: Use production traffic to make decisions, not meeting room assumptions
  • Gradual over big bang: Incremental migrations sleep better at night
  • Ownership over handoffs: If I build it, I make sure it runs
  • Teaching over gatekeeping: The best code review prevents future incidents AND teaches why

πŸ› οΈ Recent Technical Challenges I've Solved

The Ingress Controller Migration Nobody Wanted to Touch

Problem: Monolith Django app needed to move between ingress controllers. No docs. No playbook. Just "figure it out."
Solution: Collaborated with a colleague to implement regex-based routing patterns for gradual traffic migration
Result: Zero downtime, zero incidents, one very relieved team

The Portal That Wouldn't Die

Problem: Legacy portal marked for deprecation... 3 years ago. Multiple failed attempts.
Solution: Used New Relic as an archaeological tool - 6 months of ingress logs revealed what was actually used vs what documentation claimed
Result: Successfully decommissioned with surgical precision, saving ~$200k annually

πŸ“« Let's Connect


"The best migrations are the ones nobody notices" - Me, after too many 2am rollbacks

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