CSBS undergrad at Netaji Subhash Engineering College, Kolkata. I design high-concurrency in-memory storage engines, distributed lock and transaction runtimes, and lean developer operating systems. Open-source contributor to Redisson, Redis, Lettuce, and Valkey.
Zero external dependencies. Real-time terminal execution and spatial branch pruning running live on client CPU.
Built from first principles in Rust, Java 21 Loom, Go, and C. Every project backed by reproducible benchmarks and public repos.
Ultra-lean developer operating system engineered on Debian with a sub-350MB idle RAM footprint. Features dynamic in-memory zRAM (ZSTD) compression eliminating SSD swap thrashing, 59 native zero-terminal GTK3 developer applications, 133/133 unit tests, eBPF telemetry, and automated Debian packages (.deb).
Crash-consistent Two-Phase Commit (2PC) & binary Write-Ahead Log (WAL) engine for autonomous AI coding agents. Eliminates dirty repository state and hallucinated rollbacks across agent pipelines with binary WAL, CRC32 verification, 21 MCP tools, and 58/58 passing tests. Published on Crates.io.
Zero-overhead reverse proxy and terminal HUD preventing surprise API bills from coding agents. Implements hard budget circuit breakers (HTTP 402), byte-level prompt-cache invalidation linting, sliding-window velocity brakes, native MCP server, and Prometheus export.
Compiler-grade linter, cache-layout optimizer, and generational garbage collector for AI agent instructions (AGENTS.md, CLAUDE.md, .cursorrules). Detects dead file paths, resolves semantic rule contradictions, eliminates cache-busting volatile prefixes, and auto-compacts context bloat in <15ms. Published on Crates.io.
In-memory vector search engine and HNSW approximate nearest neighbor (ANN) graph index built in Java 21 Loom virtual threads. Features 8-bit scalar quantization (SQ8) with 75% RAM reduction, filtered hybrid vector search, and verified 16,900+ QPS at 0.28ms median latency.
National-scale geospatial hierarchy and proximity query engine indexing 650,000+ Indian census settlements and MDDS administrative codes. 2D geographic KD-Tree with spherical Haversine pruning and transliteration-tolerant Indic trigram search, clocking 38,400+ QPS in Java 21 Loom.
Production-grade banking and financial transaction aggregation platform engineered on Spring Boot 3.3.5 and PostgreSQL 16. Implements Spring Security 6 stateless JWT authentication with role-based access control (RBAC), scheduled market data ingestion, custom JPQL financial queries, and Dockerization.
Production full-stack restaurant operating system and real-time reservation platform. Features Redis distributed mutex locking (SETNX + Lua scripts) paired with PostgreSQL row-level locks (SELECT FOR UPDATE) to guarantee zero double-bookings during peak concurrency rushes. Complete customer portal, KDS, and cashier floor management.
Production pull requests reviewed and merged into tier-one distributed runtimes, databases, and client drivers.
Implemented overloads accepting custom MapOptions across sync, reactive, and RxJava batch interfaces.
Verified replica sync in RTransaction commit via WAIT to guarantee distributed slave quorum.
Reschedules watchdog on transient errors & eliminates Lua scientific notation in stream IDs.
Full options parity across sync, reactive, and RxJava interfaces for transactional maps.
Unlocks standard Java try-with-resources resource cleanup across all destroyable caches.
Zero-allocation byte inspection preventing multi-megabyte heap copies (37/37 CI checks passed).
Hardware pause backoff with Java 8/9+ compatibility and 30s exclusive acquisition deadline.
Validated sentinel aclfile paths and standardized test module volatile cross-thread flags to atomic builtins.
Exposed detailed RateLimiter metrics in public API for OSGi bundle import compatibility.
Prevents out-of-bounds panics by intersecting render areas with buffer bounds across List and RatatuiLogo.
Added accessible keyboard accelerator to follow symbolic link context actions in Nemo.
Corrected asynchronous directory view update race and multi-item selection state in Nemo.
Added payload length sanitization and buffer overflow checks in local LAN transfer daemon.
Added Kubernetes image pull secret serialisation support in Canonical Juju orchestration.
Exported icon nodes across individual icon modules to enable granular tree-shaking.
Physical AMD Zen 3 workstation tuned for zero-overhead systems and concurrency engineering.
01 // Systems & Concurrency Development Rig
02 const engineer = {
03 name: "Ronit Gupta",
04 role: "Systems & Distributed Backend Software Engineer",
05 education: "CSBS @ Netaji Subhash Engineering College (Batch 2027)",
06 location: "Kolkata, India"
07 };
08
09 const hardware = {
10 cpu: "AMD Ryzen 5 5600H (6C / 12T @ 4.2 GHz Boost)",
11 ram: "15.3 GB Physical DDR4",
12 zram: "7.5 GB In-Memory ZSTD Compressed Block Device",
13 kernel: "Linux 7.0 / Aero Linux / Wayland",
14 power: "ACPI 80% charge threshold via TLP (zero SSD disk swap)",
15 policy: "Strictly Systems & Concurrency (Zero gaming overhead on Linux)"
16 };
17
18 const stack = [
19 "Rust", "Java 21 Loom", "Spring Boot 3", "Go", "PostgreSQL 16", "Redis", "C"
20 ];