mario Igor
@marioigor
I’m a Senior full-stack engineer shipping end-to-end features and distributed systems at scale.
What I'm looking for
I’m a Senior Full Stack Engineer with 7 years of experience delivering end-to-end features in fast-paced, ambiguous environments. I design and operate distributed systems at scale, with hands-on ownership from frontend to backend architecture—building backend-heavy systems that power 100+ microservices (30M+ monthly requests, sub-100ms P99).
I apply AI pragmatically to accelerate development while maintaining strict human validation, testing, and production reliability. At Tractian, I engineered a Node.js BFF layer with circuit breakers and distributed tracing, processed 20M+ monthly events into audit timelines for 15+ teams, improved observability (Datadog; MTTR reduced 35%), and led mobile SDUI foundation work with Flutter/Dart. Earlier, I led a team of 10+ engineers, strengthened stability to 99.8% crash-free sessions, and automated CI/CD to cut deployment time by 60%.
Experience
Work history, roles, and key accomplishments
Full Stack Software Engineer
Tractian
Nov 2024 - Present (1 year 6 months)
Engineered a Node.js BFF layer orchestrating 100+ microservices to handle 30M+ monthly requests with sub-100ms P99 latency. Owned end-to-end full-stack delivery (React UI, TypeScript/Go/C# APIs) and improved observability with Datadog, reducing MTTR by 35%.
Mobile Software Engineer
Tractian
Jul 2024 - Nov 2024 (4 months)
Built Server-Driven UI (SDUI) foundations with Flutter and Dart to deliver real-time updates without app store releases. Refactored legacy UI across 12+ screens, reducing inconsistencies by 70% and accelerating time-to-market.
Technical Lead, Full Stack
FCS Suite
Jul 2021 - Jul 2024 (3 years)
Led a 10+ engineer team delivering B2B applications under tight timelines, improving stability to 99.8% crash-free sessions. Designed offline-first architecture adopted company-wide, built a route optimization system using clustering/geospatial methods, and reduced deployment time by 60% via automated CI/CD.
IT Infrastructure Analyst
ABC Technology
Oct 2019 - Jul 2021 (1 year 9 months)
Developed Python and Shell automation scripts, reducing manual effort by 75%. Enabled secure remote work for 200+ employees using zero-trust architecture.
Education
Degrees, certifications, and relevant coursework
Universidade Anhembi Morumbi
MBA, Business Intelligence and Analytics
2022 -
Completed an MBA in Business Intelligence and Analytics at Universidade Anhembi Morumbi in 2022.
Centro Universitario Eniac
Systems Analysis and Development, Systems Analysis and Development
2021 -
Completed studies in Systems Analysis and Development at Centro Universitario Eniac in 2021.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
Skills
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