RUST / TOKIO / NETWORKING↗
axon-engine
High-throughput network engine in Rust using epoll socket loops, non-blocking I/O, and Tokio concurrency for request routing.
BACKEND & SYSTEMS ENGINEERING
Build them fast. Scale them reliably.
Hi, I'm Rajnish Kumar — Backend, Systems, and Platform Engineer working with Rust and Python. Grounded in Operating Systems, Data Structures & Algorithms, and System Design. I build networked services, concurrent backends, and Linux platform tooling.
Rust & Python
//PRIMARY LANGUAGES
Linux / OS
#SYSTEMS & KERNEL
DSA
&CORE FOUNDATIONS
SysDesign
>_SCALABLE ARCHITECTURE
FEATURED WORK
Selected Projects & Systems
Asynchronous network engines, distributed services, and operating systems memory tooling.
PYTHON / ASYNCIO / GRPC↗
python-core-mesh
Distributed service coordinator in Python using AsyncIO event loops, Redis state synchronization, and gRPC endpoints.
OS INTERNALS / C / RUST↗
kern-allocator
User-space memory allocator in Rust and C with segregated free lists, buddy block allocation, and Linux mmap paging.
DSA / CONCURRENCY / ALGORITHMS↗
concurrent-dsa
Lock-free queues, ring buffers, skip lists, and concurrent LRU/LFU cache policies implemented in Rust and Python.
TOOLING & FOUNDATIONS
Technical Stack & Competencies
Technologies and computer science fundamentals applied in backend systems and platform engineering.
Core Languages
- Rust (Tokio / Systems)
- Python (AsyncIO / APIs)
- C (POSIX / Systems)
- POSIX Shell / Bash
- SQL (PostgreSQL)
DSA & Problem Solving
- Data Structures & Algorithms
- Time & Space Complexity
- Tree & Graph Traversals
- Lock-Free Data Structures
- Dynamic Programming
System Design
- High-Concurrency Backends
- Distributed Architecture
- Caching Strategies (Redis)
- Message Queues & Streaming
- gRPC & Protobuf APIs
Operating Systems
- Linux Internals & Syscalls
- Virtual Memory & Paging
- Processes & Concurrency
- TCP/IP & Network Sockets
- Performance & Profiling
GET IN TOUCH
Let's connect.
Available for Backend, Systems, and Platform engineering roles. Reach out via email or any platform below.