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shreyasganesh0/README.md

Shreyas Ganesh

Systems & infrastructure engineer. MS ECE, University of Florida (May 2026); ~1.5 years as a backend SWE at Wabtec before that. I like working close to the metal — concurrency, storage engines, distributed systems — and on the AI-infrastructure layer that runs on top of them.

What I work on

  • Concurrency & systems — lock-free data structures, Linux kernel modules, memory-ordering experiments.
  • Databases & distributed systems — storage-engine internals, replication, protocols implemented from the spec.
  • AI infrastructure — LLM evaluation harnesses, RL-driven systems, RAG and inference.

Selected work

Project What it is
lockfree-queue Vyukov-style MPMC queue in C++ — per-slot atomic sequence numbers, false-sharing experiments, and a CI gate that fails the build on a >5% perf regression.
rl-fuzzer A DQN agent driving AFL++ over a 47-action mutation space, talking to the fuzzer over lock-free shared memory.
llm-fuzzing A ~24k-LOC LLM-evaluation framework — 7 models × 5 context variants × 7 prompt strategies, ~14k cached calls, with a cost-audit tool over ~$100 of tracked spend.
cf_ai_chatbot A RAG chatbot deployed on Cloudflare Workers + Durable Objects + Vectorize + Workers AI (Llama-3-8B).
sqlite-clone-zig A SQLite reader in Zig — file-format parsing and B-tree traversal, built from the spec.
ride-location-tracker Real-time geospatial tracking in Go — WebSockets, a channel-based pub/sub hub, Redis GEO.

Open source

  • ClickHouse #89826 — merged. Added the arrow_flight_request_descriptor_type setting so ClickHouse can emit Arrow Flight Command-style descriptors (Dremio compatibility). +231 / −18 across 15 files.
  • Submitted PRs to ScyllaDB (#26920, alternator put_item LWT path — C++/Seastar).

Currently — extending my LLM-systems work (building a transformer and inference server from scratch) and landing more PRs to the databases I'd want to work on.

📫 LinkedIn

Work authorization: F-1 STEM OPT, eligible May 2026. Already US-based — an H-1B change-of-status filing is exempt from the $100k supplemental fee.

Pinned Loading

  1. ride-location-tracker ride-location-tracker Public

    A real-time geospatial location tracker in Go. Uses WebSockets, a custom in-memory Pub/Sub hub, and Redis (for geospatial queries) to broadcast driver locations.

    Go

  2. sqlite-clone-zig sqlite-clone-zig Public

    A barebones SQLite clone built in Zig to explore database internals. Implements file format parsing and B-Tree traversal to read the schema and count tables.

    Zig

  3. lockfree-queue lockfree-queue Public

    A lock-free Multi-Producer Multi-Consumer (MPMC) queue in C++. Includes experiments on memory ordering, false sharing, and performance benchmarking.

    C

  4. llm-fuzzing llm-fuzzing Public

    A ~24k-LOC LLM-evaluation framework: 7 models x 5 context variants x 7 prompt strategies, ~14k cached calls, with a cost-audit tool over ~$100 of tracked spend.

    Python

  5. rl-fuzzer rl-fuzzer Public

    A DQN agent driving AFL++ over a 47-action mutation space, communicating with the fuzzer over lock-free shared memory.

    C

  6. cf_ai_chatbot cf_ai_chatbot Public

    An AI RAG chat bot built using cloudflare workers, durable objects for persistence and Llma 3-8b instruct model for querying.

    TypeScript