Jeffin Sam
Software Development Engineer II at Amazon
Bhopal, Madhya Pradesh, India
Summary
🤩
Rockstar🎓
Top SchoolJeffin Sam is a Software Development Engineer II with nine years of experience building performant backend systems and improving frontend UX, currently at Amazon in Bhopal. He has a strong open-source track record—contributing performance-focused Redis caching to Forem, frontend and API fixes for Open Collective, and refactors in Servo and Webpack—demonstrating comfort across languages and layers. His background spans reliability engineering at Nutanix, ML tooling work through two Google Summer of Code projects, and teaching/mentoring roles during his university years. Jeffin combines algorithmic rigor (competitive programming and geometric algorithms) with pragmatic production engineering, often optimizing data paths and build tooling to reduce load and latency. He’s known for being "always on toes"—a self-motivated contributor who quietly improves performance and developer experience in widely used community projects.
10 years of coding experience
5 years of employment as a software developer
schooling, science, 89%, schooling, science, 89% at Holy Family Convent Sr Sec SchoolBachelor's degree, Computer Science, 8.4, Bachelor's degree, Computer Science, 8.4 at Karunya University
English, Hindi, Malayalam
Stackoverflow
108reputation
20kreached
14answers
2questions
Github Skills (67)
graph-algorithms10
postgresql10
servo10
python10
testing10
ruby10
backend10
javascript10
bundle10
api10
performance-optimization10
wordpress-graphql10
html10
rust10
sequelizejs10
Programming languages (14)
Github contributions (5)
opencollective/opencollective-frontend
Oct 2019 - Oct 2020
Open Collective's Frontend. A React app powered by Next.js.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:32 commits, 28 PRs, 74 pushes in 1 year
Contributions summary:Jeffin primarily contributed to the front-end of the Open Collective project, focusing on improving the user interface and experience. Their work included modifications to the contributors grid, addressing browser compatibility issues, and enhancing various form components related to virtual cards and the contribution flow. They also implemented UI changes such as adding remove avatar functionality and reorganizing settings, while incorporating accessibility improvements. The user also appears to have worked on code refactoring and adopting best practices with functions like reportValidity and styling.
frontendnextjsreactwebpackopencollective
opencollective/opencollective-api
Oct 2019 - Jul 2020
Open Collective's API. A GraphQL API powered by Sequelize and PostgreSQL.
Role in this project:Backend Developer
Backend DeveloperContributions:11 commits, 10 PRs, 22 pushes in 8 months
Contributions summary:Jeffin primarily focused on backend development, contributing to bug fixes and implementing new features within the Open Collective API. Their work included addressing issues related to Stripe account changes and sorting order, as well as preventing deletion of collectives with events. They also added features like blocking burner email addresses and whitelisting specific email domains.
graphql-apipostgresqlopencollectivepostgresnodejs
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