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Mikael Quadros Strapazzon
From Brazil 12:34 PM (GMT-03:00)
$29/hr or $59,000/yr

Active over a week ago


Member since May 2026

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Senior Full-Stack Engineer

Full-Stack Engineer
Available for hire
Years of experience
6+ years
Experience level
Senior
Available for
Full-time, Part-time, Contract, Freelance
Available from
07 Jul 2026
Download Resume / CV

Senior Full-Stack Engineer with 6+ years building production systems in Java/Spring Boot and React/TypeScript. Currently the sole engineer on an independent contract for a Brazilian industrial enterprise, owning end-to-end decisions on architecture, integrations, and reliability. Proven track record leading high-impact migrations and delivering measurable results, including 90% faster critical SQL queries and 25% lower AWS spend through telemetry-driven optimization. Known for mentoring juniors and championing code review culture.

Employment History

Senior Software Engineer at Independent Contractor Current 2026 - Now
Direct B2B engagement as the sole technical specialist developing a customer-facing platform for self-service business operations. Engineered end-to-end payment integration with Banco do Brasil (PIX and Boleto) using mTLS and OAuth2, with automatic ERP reconciliation. Led migration of principal backend API from monolith to Spring Modulith architecture. Authored Swagger/OpenAPI documentation with unit and integration test coverage using Testcontainers.
Software Engineer at e-Core 2025 - 2025
Logistics scheduling system for inbound truck loading, integrated with client ERP. Optimized AWS infrastructure based on production telemetry, reducing monthly cloud spend by 25% ($800 to $600). Restructured CloudWatch logging with consistent standards improving observability. Extended Sankhya ERP integration, built generic data export module, authored Swagger/OpenAPI documentation with Testcontainers test coverage. Mentored QA engineer transitioning to Junior Developer role.
Software Engineer at Magis5 2023 - 2025
B2B SaaS ERP for Brazilian e-commerce sellers. Drove decomposition of PHP monolith into 4 Spring Boot microservices, leading migration of expense and revenue posting module. Optimized Cloud SQL queries reducing response times by up to 90% through indexing, query rewriting, and execution plan analysis. Introduced code review practices, mentored junior developers, and designed Redis caching layer for high-traffic endpoints.
Software Engineer at SENAI Innovation Institute 2023 - 2023
R&D project: IoT data platform feeding AI/ML training pipelines for a multinational client. Built Spring Boot APIs to ingest data from industrial IoT devices and expose it to AI/ML training pipelines. Acted as technical bridge between embedded systems and AI research teams. Translated client requirements into technical specifications and API contracts. Designed PostgreSQL schemas for IoT telemetry storage with unit and integration test coverage.
Full Stack Developer at CDNTV 2021 - 2023
White-label OTT platform (IPTV, TVOD, SVOD, NVR) self-hosted by approximately half of Brazil's internet service providers. Built the entire VOD module for Samsung Tizen TV application using React.js and TypeScript. Designed and shipped admin platform features in Laravel. Spearheaded Docker adoption across development and production environments. Modeled SQL and NoSQL schemas for catalog metadata, recording indexes, and analytics workloads.
PHP Developer at E-Trust 2020 - 2021
Identity and Access Management (IAM) platform for enterprise clients. Maintained and extended platform integrations with Active Directory/LDAP, REST APIs, and legacy SOAP web services for user provisioning and access control workflows. Resolved production bugs and delivered ongoing improvements. Conducted code reviews and authored technical documentation.

Education

Bachelor's Degree (Technology), Systems Analysis and Development at IFSUL (Federal Institute), Brazil 2020 - 2025
Technical High School Diploma, Web Development at IFSUL (Federal Institute), Brazil 2016 - 2019