ARYAN MISHRA
Backend & Systems
Hey, I'm Aryan. I build systems and infrastructure. From lock-free job schedulers to custom database proxies, I like digging into low-level engineering and making things run fast. Mostly writing C++ & Typescript.
Open to freelance and internships where goals and engineering challenges align.
Open Source Contributions
uWestJS
Reduced peak heap usage by 12.5% (6MB) and eliminated GC pressure via module-level static constants for empty JSON bodies
passmark
Patched 6 critical vulnerabilities (CVE-2026-23745, CVE-2026-24842) by implementing npm overrides for transitive dependencies
uWestJS
Expanded metadata and keywords for high-performance NestJS adapters, improving discoverability for features like backpressure
Featured Projects
A protocol-layer SQL firewall and connection pooler that intercepts PostgreSQL wire messages to block destructive patterns and optimize database performance.
Key Features
- Engineered protocol-layer SQL firewall intercepting PostgreSQL wire messages to block destructive SQL patterns before reaching database instances
- Implemented connection pooling with warm persistent SSL sessions, achieving 14-15ms proxy latency handling 2,000 queries across 20 concurrent connections across AWS EC2 Instances
- Designed query guard blocking DROP, TRUNCATE, ALTER TABLE, and unguarded DELETE statements, preventing accidental data loss in production environments
A high-performance job scheduler featuring a hybrid queuing architecture (Work-Stealing Deque + MPSC Mailbox) designed for microsecond latency and massive concurrency.
Key Features
- Achieved < 5µs P50 latency and 1M+ jobs/sec throughput via spin-wait spinning optimizations
- Implemented Lock-Free Chase-Lev Deque and MPSC Mailbox for contention-free task injection
- Used a Randomized Work-Stealing algorithm to prevent convoy effects under heavy load
- Zero dynamic allocations on the hot path with cache-aligned structures to prevent false sharing
A multi-process monolith for trimming clips. The Express API offloads heavy yt-dlp + FFmpeg work to BullMQ workers backed by Redis, streaming real-time progress over WebSockets.
Key Features
- Multi-Process Monolith: API Server + Worker
- Real-Time Job Status via Socket.io
- BullMQ Worker System with Priority based queues
- Google OAuth Authentication
- Optimized background job orchestration using BullMQ and Redis, ensuring system stability during burst of 4,000+ concurrent jobs.
A thread-safe, stop-the-world Mark-and-Sweep garbage collector in C++. It manages heap objects via VM stack and global roots tracking with safe multi-threaded allocation.
Key Features
- Tracing-based garbage collection with stop-the-world design
- Multi-root tracking (stack + globals)
- Cyclic reference handling
- Thread-safe heap access using a single global mutex
- Multithreaded stress-tested allocation safety
Latest Blog.
Check out some of the blogs I have written.