Backend & Systems Engineer · Rust · Contributor to Meta's pyrefly and ReductStore
Time-series data infrastructure · developer tooling · production systems that ship
Backend and systems engineer based in Agartala, India, building production SaaS at Yupcha Softwares and contributing to production Rust codebases in the time-series database and developer-tooling space.
- 6 merged pull requests across two production Rust projects, one of them Meta's
- Currently: SDE at Yupcha — speech-to-speech AI interview tooling (AWS Bedrock, LiveKit/WebRTC), HR automation SaaS
- Open to: backend / systems / infrastructure roles — Rust-focused, remote or relocation (EU, Canada, Australia)
- B.Tech Computer Science · ICFAI University Tripura · 2026
6 merged pull requests across two production Rust projects. Focus: the observability and system-events layer of a time-series database, plus a fix in Meta's Python type checker.
| PR | Contribution |
|---|---|
| #1496 | Led a cross-cutting refactor unifying all $system event handling under one logger — requested directly by the maintainer. Generic event sink, type-safe event-kind enum, consolidated five event pipelines with the external record format provably unchanged. |
| #1467 | System log capture to $system/logs — abstract log-sink hook in the base crate (zero reverse dependency) with a task_local reentrancy guard preventing an infinite logging loop. |
| #1474 | Per-bucket usage statistics with distinct entry-level read/write counters and record counts. |
| #1431 | Instance-wide usage statistics emitted as queryable $system records. |
| #1417 | Replication diagnostics as queryable telemetry — shipped in v1.20, credited by the co-founder. |
| PR | Contribution |
|---|---|
| #3840 | Fixed a false-positive untyped-import diagnostic for packages shipping py.typed (PEP 561), correctly handling submodules where the marker lives at the package root. |
- Rebuilt a production speech-to-speech AI interviewer from a high-latency inherited codebase into a deployed service — unified STT/LLM/TTS into a single pipeline on AWS Bedrock (Nova Sonic), Pipecat, LiveKit/WebRTC.
- Cut a hot polling path ~90% by rewriting a Redis
SCAN+GETpattern asMGETbatching. - Reduced page load 3.4s → 1.9s (~44%) by eliminating N+1 queries, adding composite indexes, and route-splitting Next.js bundles.
- Deployed and operated services on Proxmox/Linux —
systemdunits,nginxreverse proxy with automated TLS,journald.
- Fresco — open-source live wallpaper engine for Linux (Rust · GTK4 · Wayland). Per-output supervised subprocesses over libmpv, with a compositor test matrix and rendering-fidelity harness verifying behaviour across Wayland compositors before release.
- AHTML — agent-readable HTML standard (WebMCP / OpenAPI 3.1 / JSON-LD from one source). 17k+ downloads across the @ahtmljs suite.
- RoyUI — TypeScript-first, RSC-safe React component library. 3k+ npm downloads.
- whatbroke — crash-context packager for AI debugging; MCP server, git-anchored suspect ranking, parsers for five test runners.
- Winner — NITA Arjuna 2.0 National Hackathon (2025), 200+ teams
- Winner — Technovate Project Exhibition (2025)
- 1st Runner-Up — NITA–ISRO Space Hackathon (2024)
- Top 500 — AI for Bharat hackathon
Open to backend / systems / infrastructure roles — rdibbayajyoti@gmail.com