MGMateus Galasso
@mateusgalasso
Senior Full Stack Engineer specializing in PHP legacy modernization, cloud migrations, and performance optimization.
BrazilWhat I'm looking for
I am a Senior Full Stack Engineer with 18+ years designing scalable architectures, leading complex system migrations, and modernizing legacy environments using PHP (Laravel), Java, and AWS. I have driven measurable impact — improving system performance by up to 47% and cutting infrastructure costs by 32% — while ensuring high availability and robust CI/CD practices.
I thrive in remote, cross-border teams and act as a technical reference and mentor, implementing DevOps automation, Elasticsearch solutions for high-traffic search, and best-practice software architecture. My background spans high-availability financial systems, cloud migrations, and end-to-end project delivery with strong emphasis on performance, reliability, and maintainability.
Experience
Work history, roles, and key accomplishments
Senior Full Stack Developer
Fundação Banco do Brasil
Mar 2017 - Present (8 years 9 months)
Led maintenance and modernization of critical institutional systems, ensuring 99.7% operational continuity and implementing CI/CD pipelines to reduce release times and improve reliability.
Senior PHP Engineer
Parler
Jun 2024 - Jun 2025 (1 year)
Led migration from PHP 7.4 to 8.0 delivering a 47% performance increase with zero downtime and architected Elasticsearch to handle 12M+ searches, improving query response times.
PHP Engineer
Juice Plus
Dec 2023 - Jun 2024 (6 months)
Spearheaded migration of legacy applications to AWS using Laravel, reducing infrastructure costs by 32% and integrating Elasticsearch to accelerate financial search performance by 58%.
Full Stack Developer
Independent Software Consultant
Jan 2015 - Feb 2017 (2 years 1 month)
Developed and maintained custom web applications for SMBs, managing full project lifecycles and providing server optimization and database management consultancy.
Systems Analyst
Banco do Brasil
Jan 2007 - Dec 2014 (7 years 11 months)
Developed and managed high-availability credit card processing systems with 99.9% uptime and led creation of a prepaid card solution that improved operational efficiency by 43%.
Education
Degrees, certifications, and relevant coursework
UNUnyleya
Postgraduate Degree, Big Data & Data Science
2021 - 2022
Postgraduate coursework in Big Data and Data Science focused on practical data processing and analytics techniques.
CUCentro Universitário de Brasília (UniCEUB)
Bachelor of Computer Science, Computer Science
2001 - 2004
Bachelor of Computer Science covering core topics in software development, databases, and systems engineering.
Tech stack
Software and tools used professionally
Availability
Location
BrazilAuthorized to work in
Job categories
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