Safin Mahmud SafinMahmud

Toronto, Canada

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Overview Repositories 16 Projects Packages Stars

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SafinMahmud/README.md

Hi 👋 I'm Safin Mahmud

💫 About Me:

Full-stack Software Engineer (React/TypeScript, Python/Django) based in Toronto, Canada
Focused on AI-assisted development, RAG systems, and open-source contribution
Contributed to large-scale open-source projects (Sentry, PostHog)
Currently targeting full-stack and AI engineering roles

🚀 Highlights:

Merged React/TypeScript and Python/Django fixes into Sentry, a production monitoring platform used by millions of developers
Building a RAG system over the Sentry codebase to navigate and query a large open-source project
Building an AI-powered job search agent with prompt engineering and structured retrieval
Daily workflow with Claude Code and Cursor in an agent-based development loop
Shipped production payment platforms, REST APIs, and SOAP integrations in prior full-time engineering work

🧠 Open Source Contributions:

Sentry
- fix(explore): add !has filter when drilling down (#110404 – merged)
  getsentry/sentry#110404
- fix(tagstore): Pass requested sort order to Snuba (#110985)
  getsentry/sentry#110985
PostHog
- fix(cohorts): Wrap flat API criteria into nested group format (#51697 – merged)
  PostHog/posthog#51697