Cosmin SANDU
Oregon, United States
Summary
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SeniorCosmin‑Mihai Sandu is a Senior Software Engineer with over 15 years of hands‑on experience building and modernizing web applications, specializing in PHP and Symfony across high‑scale e‑commerce and SaaS environments. A Certified Symfony developer, he has repeatedly led complex migrations (including multiple Symfony upgrades and PHP modernizations), implemented notification and loan management services, and introduced queueing and observability patterns to improve performance and scalability. He thrives as a remote consultant and freelancer, partnering with European clients—particularly Swiss and Romanian companies—to deliver secure, production‑ready systems and mentor teams on testing and best practices. Notably, his background spans both legacy rewrites and modern microservice work, from eMAG marketplace features to PIM and core banking integrations, reflecting a rare blend of legacy migration expertise and cloud‑native service design. He pairs technical depth with business awareness, holding a master’s in business management in addition to a software engineering degree from the University of Craiova. Open to new opportunities, he favors projects that require pragmatic engineering, performance tuning, and cross‑cultural collaboration.
11 years of coding experience
Github Skills (44)
symfony-bundle10
bundle10
php-framework10
php10
symfony10
api-platform9
api9
vagrant9
docker8
database-migration8
rest-api8
authentication8
jwt8
ruby8
virtualization8
Programming languages (5)
Github contributions (5)
cosminsandu/cosminsandu.github.io
Jul 2018 - Jun 2023
Contributions:11 pushes, 1 branch in 5 years
cosminsandu/my_docker
Sep 2023 - Nov 2025
Contributions:11 pushes, 2 branches in 2 years 1 month
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