kalmastenitin

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Nitin Kalmaste 👋

Backend Systems Engineer | Go · Rust · Python · Distributed Systems & Media Infrastructure

Building high-concurrency backend infrastructure, low-latency video streaming pipelines, and P2P networking systems.

🔭 Current Focus: Building open-source Rust toolkits for RTSP ingest and P2P camera streaming (targeting India's CCTV market shifts).
🏗️ Background: Joined as one of the first two engineers at Ease My AI, building the backend infrastructure of RDX (a production CCTV/VMS platform handling 10,000+ cameras) from zero and leading a team of 10.
⚡ Core Specialties: Distributed systems, high-concurrency streaming pipelines, real-time protocols (WebRTC, RTSP, QUIC), and memory-safe systems programming.

Category	Technologies / Skills
Languages	`Go` `Rust` `Python`
Media & Streaming	go2rtc, MediaMTX, ZLMediaKit, RTSP, WebRTC, ONVIF, fMP4
Networking & P2P	QUIC, NAT Traversal, STUN/TURN/ICE, TCP/UDP, WebSocket
Backend & Architecture	Microservices, RESTful APIs, System Design, Distributed Systems, Event-Driven Architecture
Databases & DevOps	Docker / Docker Swarm, Kubernetes, Redis, MongoDB, Linux, Git, Kong Gateway
Leadership	Technical Planning, Code Review, Team Management (10+ devs)

Rust-based camera infrastructure tools targeting modern replacement demands for CCTV markets.

Tech Stack: Rust, Tokio, WebRTC, RTSP, QUIC, ONVIF, fMP4
Highlights:
- RTSP ingest layer parsing H.264/H.265 streams with custom package.
- GOP-aligned fMP4 segment storage with binary seek indexes.
- P2P transport implementation using WebRTC with STUN/TURN NAT traversal.

Engineered core Video Management System handling high-concurrency CCTV streams for 10,000+ cameras.

Tech Stack: Go, Python, Docker Swarm, Redis, MongoDB, ZLMediaKit, go2rtc, Kong Gateway
Highlights:
- Scaled backend infrastructure from zero to production as one of the first two core engineers, leading a team of 10.
- Integrated go2rtc, MediaMTX, and ZLMediaKit for high-concurrency stream handling in a distributed Docker Swarm environment.
- Built a distributed camera assignment coordinator utilizing Redis leader lease for High Availability (HA).

Live web application and signaling architecture demonstrating zero-intermediary media routing.

Tech Stack: Rust (axum), WebRTC, coturn, Upstash Redis, Go, Svelte, Cloudflare Pages
Highlights:
- Rust signaling server featuring role-based WebSocket relay and HMAC-SHA1 time-limited TURN credentials.
- Network topology detection logic (local network vs. mobile data routing).

_{Open to backend / systems roles — remote preferred.}