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Mateus Galasso

@mateusgalasso

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Senior Full Stack Engineer specializing in PHP legacy modernization, cloud migrations, and performance optimization.

Brazil

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What I'm looking for

I seek roles focusing on legacy modernization, cloud migrations, and performance-driven engineering within collaborative, remote-friendly teams that value mentorship and measurable impact.

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 Engineer

Curotec

Jun 2026 - Sep 2026 (3 months)

Modernized Intelvio's legacy ERP, upgrading to PHP 8.2 and Laravel 11, adding Pest test coverage, and implementing CI/CD with Docker and GitHub Actions. Achieved a 38% overall performance increase and reduced API response time from ~850ms to under 200ms.

PHP Laravel MySQL Docker AWS Pest

Senior Full Stack Engineer

SynoPay

Oct 2025 - Apr 2026 (6 months)

Built a multi-tenant cashless POS/payments platform with Laravel, Livewire, and Filament, including RFID wallets, a processor router with fallback, unified refund/void across Stripe, Square, and CardKnox, Oracle OPERA integration, and per-tenant RBAC.

Laravel Livewire Filament Stripe Payments REST APIs

Senior Backend Engineer

Genuine API

Jul 2024 - Sep 2025 (1 year 2 months)

Designed a versioned Laravel 12 REST API, implemented real-time chat with Laravel Reverb and queues, and integrated Firebase, SignalWire, and subscription validation.

Laravel PHP WebSockets Redis Queue

Senior Full Stack Engineer

Parler

Jun 2023 - Jun 2024 (1 year)

Led migration from PHP 7.4 to 8.0 across 200+ APIs with zero downtime, achieving a 47% performance increase and 73% reduction in production bugs. Implemented Elasticsearch search handling 12M+ daily queries at ~200ms.

PHP Laravel Elasticsearch MySQL

Full Stack Engineer

Juice Plus

Dec 2022 - May 2023 (5 months)

Migrated legacy e-commerce to AWS with Laravel and Vue, supporting 10K concurrent users. Reduced infrastructure cost by 32% (~$45K/year) and deployment time by 71% via CI/CD.

Laravel Vue.Js AWS CI CD

Senior Full Stack Developer

Fundacao Banco do Brasil

Mar 2015 - Nov 2022 (7 years 8 months)

Led web and mobile projects using Laravel, PHP, Vue.js, Angular, and Vert.x microservices over MySQL and SQL Server. Implemented CI/CD, self-hosted GitLab, and AWS cloud migration proof of concept, following Scrum.

PHP Laravel Vue.Js Angular MySQL DevOps AWS

Systems Analyst

Banco do Brasil

Jan 2007 - Feb 2015 (8 years 1 month)

Worked on corporate credit card systems processing 500K+ transactions per day (~$200M/month) using COBOL, Natural, DB2, and JCL. Helped build a new corporate card system, leading a team of 12.

COBOL DB2 Mainframe Payments