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Technical Insightsby Zbigniew Mastylo

Lessons from architecting 100s of microservices and leading engineering teams at scale

War Stories

The Day We Discovered Our "Small" Project Was Actually 1.5 Petabytes

December 2024 • Architecture

When a federal compliance project exploded from 100GB to 1.5PB overnight, 100+ people across 37 organizations were looking to me for a solution. Here's how I architected the impossible.


From Hard Drives to Real-Time: The Architecture That Saved $1.5M Annually

December 2024 • Leadership

Leading an 8-developer team to eliminate $1.8M in manual reporting costs with enterprise data architecture. How C# and Java systems replaced hard drives and Excel chaos with real-time intelligence.


From Ruby Chaos to Hospital-Scale Data Pipelines: The Architecture That Saved Healthcare Data

December 2024 • Architecture

As Chief Architect, turning daily-crashing Ruby pipelines into healthcare-native infrastructure. How Luigi wrapper abstraction enabled 1-2 day hospital integrations while coaching distributed teams.


About These Articles

These articles come from real experience architecting 100s of microservices, optimizing 10M+ infrastructure, and mentoring 50+ engineers. Each piece focuses on practical, actionable insights you can apply to your own systems and teams.

Categories:

  • Architecture - System design, microservices, and scalability patterns
  • Leadership - Engineering management and team building
  • Cloud - AWS, infrastructure, and cost optimization

Want to discuss any of these topics? Get in touch or connect with me on LinkedIn.

Building systems that scale.