Systems Software Engineer · Mindfire Solutions → Razorpay → Amazon → Oracle → Microsoft
Rust · C++ · Go · CUDA · Kubernetes · eBPF

"Never settle, always regret, then refactor the mess."
"Age gele baaghe khai" (আগে গেলে বাঘে খায়): rush ahead, and the tiger eats you.

🛠 Languages

⚙️ Systems · Edge AI · Cloud

Full-stack hardware and software platform to build a distributed edge GPU cluster, curate data to fine-tune LLMs, and serve them through a multi-engine inference layer: vLLM, Ollama, TensorRT Edge LLM, llama.cpp, SGLang.

Data curation. 13,114 training examples (6.5M tokens, 35 sources), checked by spark against slop and the five Rust rules, with before/after scoring for the fine-tune.

Secured hosting, bring your own domain. One encrypted key per person. A launch note states what is stored and what is not. voltforge.tech forwards to the cluster over Tailscale.

OpenAI-compatible model routing that every harness plugs into: Claude Code, openBatarangs, OpenCode, all on one API. The 30+ chapter book covers the cluster, the checker, the data pipeline, serving, security and keyring crypto.

⚡ GPU Parallel Programming from First Principles

16 chapters from the mathematics of parallelism to real kernels: Amdahl, Gustafson, the roofline model, warps, streaming multiprocessors, the memory hierarchy. CUDA C++ kernels and the same kernels in Rust with cuda-oxide. Reduction, scan, histogram, tiled matmul, an image-processing capstone, profiling with Nsight Compute. Every program run on a Jetson AGX Thor (sm_110) and Orin NX (sm_87).

📚 Cracking the Systems Programming Interview: books and labs in one repo

• Distributed Systems from the Ground Up: 28 chapters. Part 1 builds a replicated, sharded key-value store in Rust: write-ahead log, leader replication, Raft election, group commit, each measured against the failures it claims to survive. Part 2: 22 system designs with runnable simulations.
• Democratizing Linux: A Pipe Dream: 13 chapters that rebuild kernel mechanisms in user space, every program in Go and Rust: pipes, file descriptors, a shell, signals, CPU scheduling, virtual memory, epoll, TCP, namespaces, cgroups, a container.
• GPU-Accelerated Kubernetes: informers from scratch, a GPU job controller on controller-runtime and kube-rs, how GPUs are shared (time-slicing, MPS, MIG, vGPU, DRA), and a kind cluster whose pods use a real GPU. Go and Rust.
• The interview book: 19 chapters in six parts: tools, whiteboard algorithms, memory and the machine, concurrency, the network, interview day.
• Labs: 31 Rust modules and 22 programs (hand-rolled async runtime, epoll server, TCP and HTTP servers) with benchmarks and an 8-page report, a Kubebuilder GpuWorkload operator, 14 study guides.

Agentic coding CLI for local models: auto-discovers the best Ollama / TensorRT / llama.cpp model on Jetson and edge hardware, then reads, edits, and verifies code with tools. No cloud, no manual model ops.

Edge-AI road safety, 100% on-device: YOLOv8/v11 → TensorRT (~12 ms) on Jetson Orin, kinematic decision engine, Kalman + Deep SORT, voice alerts, zero video leaves the car. vision model · pi-stream · stream-client · companion · data-crowd

🕸️ eBPF from the Ground Up · 📘 Modern C++ Memory-Safe Systems · 👁️ Seeing Machines · 🎮 Bevy Physics · ☸️ Kubernetes Operator Pattern · 🥊 Coding Interview FightClub

🦇 openBatarangs Rust · local agentic coding CLI	🐯 thor-thunder-tigress Rust · edge GPU cluster · multi-engine serving	⚡ gpu-parallel-book CUDA · Rust · 16-chapter book
📚 cracking-systems-interview Books & labs · distributed · Linux · K8s	🚗 civicsense-vision-model Rust · on-device AI perception	🦀 cuda-oxide-demo Rust · CUDA-Oxide · Jetson benchmarks
🕸️ ebpf-rust-networking-book Rust · eBPF/Cilium/K8s book	📘 modern-cpp-systems-book C++ · memory-safe systems book	👁️ seeing-machines-book Python → Rust · CV book
🎮 bevy-physics-book Rust · physics in Bevy	🔍 systems-patterns Go · systems hands-on	🧠 AdvancedAlgoPatterns Kotlin · DSA patterns
🥊 FightClub_600 Interview prep · 5 languages	📡 jobsense-parker Rust · job-hunt CLI	🎸 grungeGPT Rust · from-scratch GPT + BPE

…plus 50+ more repos: kube-goAt, zero-trust-networking, andross, multicloud-distiller, distributed systems, ML notebooks, music & audio, websocket scaling, NFC + e-ink hardware, and a Neovim agentic IDE.

📄 Download my resume

LinkedIn · YouTube · GitHub · Portfolio · 📧 arpan.pathak47@gmail.com

Currently: teaching the Thor Tigress Cub on a Jetson AGX Thor to stop writing AI slop, shipping openBatarangs, and writing books that teach it all from first principles.