Ivan Acosta-Rubio

Strike / Lead Test Engineer (Staff-level IC)

2021 - October 2025 | Remote

Platform Engineering & Architecture:

• Architected and built SITS (Strike Integrated Testing Strategy), a comprehensive internal developer platform serving 35+ engineers across 4 teams (Platform, Trust & Safety, Consumer, Data)
• Designed full-stack platform using TypeScript/Deno, PostgreSQL, AWS serverless infrastructure with microservices architecture for distributed test execution
• Built self-service CLI tooling that auto-generates SDKs from OpenAPI specs with integrated testing facades, enabling 40+ developers to write and execute tests independently
• Established engineering best practices, code review standards, and technical documentation processes adopted across engineering organization

AI/ML Infrastructure Development:

• Engineered RAG (Retrieval-Augmented Generation) system using Anthropic Claude and OpenAI GPT-4 for automated test generation from product requirements
  • Built document parsing pipeline extracting structured data from Markdown, Confluence, and Notion using NLP preprocessing
  • Created PostgreSQL-backed version control system for test case evolution tracking across product iterations
  • Integrated with GitHub Actions CI/CD for automated PRD validation and test coverage analysis
• Built multi-modal AI pipeline combining GPT-4 Vision API with custom TypeScript orchestration for video-to-test automation
  • Developed intelligent YAML generation engine translating visual interactions into executable test syntax
  • Deployed as serverless function on AWS Lambda with S3 storage, processing 50+ videos weekly
  • Achieved 95% accuracy in test generation with context-aware prompt engineering

Business Impact & Results:

• Reduced test creation time by 65% (8 hours → 2.8 hours per feature) while improving quality across teams
• Eliminated 30+ hours of manual work weekly through AI-powered automation and developer self-service
• Increased test coverage to 78% and reduced regression testing from 4 days to 6 hours
• Reduced API testing time by 80% through intelligent test generation matching mobile app behavior

ZR Per Diem Services / Principal Software Engineer

February 2017 - 2021 | New York, NY

Backend Systems & Architecture:

• Architected mission-critical financial platform processing $10M+ in annual revenue with microservices architecture
• Designed and implemented high-throughput data pipelines handling 15,000+ transactions daily with real-time processing
• Integrated 12+ third-party APIs (payment processors, banking systems) with fault-tolerant retry logic and circuit breakers
• Built fault-tolerant distributed systems achieving 99.7% uptime for business-critical operations
• Implemented comprehensive monitoring, alerting, and incident response procedures for production systems
• Designed database architecture optimized for high-throughput financial transactions with ACID compliance

SoftwareCriollo / Founder & Staff Software Engineer

May 2008 - January 2017 | Miami, FL

Technical Leadership & Business Growth:

• Founded and scaled technology consultancy from 2 to 23 engineers, establishing engineering culture and technical standards
• Led technical architecture and development for 35+ full-stack applications serving 500K+ users as Staff Software Engineer
• Managed P&L responsibility, client relationships, and business development while maintaining hands-on technical leadership

Backend & Platform Engineering:

• Architected scalable backend systems using Ruby on Rails, TypeScript, PostgreSQL, Redis with microservices patterns
• Designed database systems with query optimization achieving <100ms response times under high load
• Built comprehensive CI/CD pipelines using GitHub Actions, Jenkins, Travis CI - reduced deployment time from hours to minutes
• Implemented DevOps infrastructure: Docker containerization, automated testing, monitoring solutions, zero-downtime deployments
• Managed AWS cloud infrastructure (EC2, RDS, S3, Lambda) handling millions of API requests monthly
• Led ops-heavy initiatives: database migrations, incident response procedures, performance optimization

Open Source & Community:

• Released multiple open source libraries and tools adopted by Ruby community
• Speaker at international conferences (RubyConf Brasil, Inspect SF)

Continuous Learning & Certifications

• University of Washington - Machine Learning Foundation (2016)
• Active contributor to open source communities
• Speaker at international tech conferences (RubyConf Brasil, Inspect SF)
• Published technical author on iOS, Swift, and AVFoundation

Formal Education

• Miami Dade College - Associate of Arts (2005-2007)