Sergei Morozov is a seasoned Senior Software Engineer with 13 years of experience building data-driven, time-aware customer experience platforms and distributed systems, most recently at Redis after senior engineering and distinguished roles at SugarCRM and Decodable. He blends backend expertise in CDC, ETL and database integrations with hands-on contributions to high-profile open-source projects like fish-shell, Doctrine ORM, Debezium, and Psalm, often focusing on compatibility, robustness, and developer ergonomics. Sergei’s work shows a consistent focus on reliability and correctness—fixing types, SQL/DBAL deprecations, connector edge cases, and shell autocompletions that improve everyday developer workflows. Based in San Jose, he pairs system-level thinking with pragmatic test and tooling improvements, and has a track record of improving both production behavior and developer experience in large codebases. An instrument engineering graduate, he brings an analytical, systems-oriented approach that surfaces in subtle but impactful fixes across major OSS ecosystems.
12 years of coding experience
17 years of employment as a software developer
Политехнический лицей г. Борисова
Bachelor's degree, Instrument Engineering, Bachelor's degree, Instrument Engineering at Belarusian National Technical University
Contributions:11 releases, 3 reviews, 266 commits in 6 years 3 months
Contributions summary:Sergei primarily focused on improving the functionality and stability of the PHPBrew project, a tool for managing PHP versions. Their contributions involved fixing bugs related to binary detection and path handling within the build process. The user also refactored code to improve the reliability and flexibility of the project's variant handling and command execution. Furthermore, the user introduced new features, such as the ability to purge multiple PHP builds simultaneously.
PHP runtime & extensions header files for PhpStorm
Role in this project:
Back-end Developer
Contributions:12 commits, 13 PRs, 12 comments in 3 years
Contributions summary:Sergei primarily focused on adding missing constants and documentation related to PHP extensions and runtime environment. Their contributions involved modifying PHP stub files for PDO, OCI8, and other extensions to improve accuracy. They addressed return type issues in functions and corrected parameter types to ensure proper type hinting for enhanced code completion and static analysis.
headerphpruntimeextensionscomposer
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Sergei Morozov - Senior Software Engineer at Redis