Projects

A bookmark manager that recommends saved pages for the project you are building, with its retrieval quality and latency measured.

Personal project, ongoing · Jul 2025 – present · 681 commits

• On BEIR SciFact (300 queries, run through the production search code) passage retrieval scores nDCG@10 0.718. On a long-document variant it scores 0.504 against 0.016 for one embedding per document.
• Live semantic-search latency on the deployed Space, 30 samples per endpoint: p50 3,026 ms down to about 1,700 ms (1,661 at the best run, -45%) and SQL statements per search from about 10 to 1, with each run recorded and the unexplained remainder written down.

• Python
• Flask
• PostgreSQL
• pgvector
• Redis
• RQ
• +6

Multi-tenant certificate verification for universities and recruiters, rebuilt after a security audit.

Personal project · Sep 2025 – Oct 2026 · 234 commits

• 100 API route files. A test fails the build when a route is neither guarded nor on an explicit public list.
• 80 test files and 1,432 passing tests, run on main on 16 Oct 2026. They use in-memory fakes for the database.

• Next.js
• TypeScript
• Supabase
• PostgreSQL
• Gemini
• Vitest
• +1

A campus room-booking service built to show the delivery side: measured rollouts, a measured rollback, and query costs at scale.

Personal project · Oct 2026 · 92 commits

• A concurrent-write test on real PostgreSQL creates exactly one booking when identical requests arrive together; separate tests show the database rejects overlaps even when the application check is bypassed.
• At 200,000 bookings the overlap query read 2,469 pages; a range operator with a GiST index reads 30, and the all-rooms day view went from 21 to 113 requests per second. Synthetic data, one laptop.

• FastAPI
• React
• PostgreSQL
• Docker
• Kubernetes
• Helm
• +4

Recovers failed payments: an LLM may recommend, but only a deterministic policy engine may act.

Razorpay Buildathon, Track 03 · Aug 2026 – Sep 2026

• Execution is idempotent: an idempotency key plus a PostgreSQL advisory lock, with a unique-constraint backstop. An integration test races two real threads against it.
• A test walks the syntax tree to prove that execution code cannot reference the AI recommendation.

• Python
• FastAPI
• PostgreSQL
• Alembic
• Redis Streams
• Next.js
• +4

A Go lab that replays routing policies on identical traffic and classifies why one of them collapses under load.

Personal project · Aug 2026 – Sep 2026 · 226 commits on 5 days

• go test ./... on a fresh clone: 24 packages pass, 503 top-level tests, 0 failures. go build, go vet and gofmt are clean. About 46,900 lines of Go, of which 20,284 are 89 single-file experiment programs.
• Six policies are compared: round-robin, weighted round-robin, least-connections, EWMA, power-of-two-choices by in-flight count, and an adaptive weighted policy.

• Go
• net/http
• GitHub Actions
• JavaScript dashboard
• Prometheus text format

A relational database built from scratch: B+ tree, buffer pool, SQL, optimizer, locking and crash recovery.

Course capstone (two people) · Jun 2026

• 133 tests in 26 suites pass. They include a crash matrix that simulates failures between a WAL flush and a page flush, a 1,000-operation SQL fuzz test against a reference model, and deadlock tests.
• A 683-line disk-backed B+ tree with split, merge, borrow and bulk-load, and its root persisted through the catalog.

• TypeScript
• Node.js
• Jest
• sql-parser-cst