Avichal Pandey

Built a self-hosted PaaS with asynchronous deployments via Redis/Asynq, automatic framework detection and Docker builds, and S3-backed static hosting. Implemented a custom reverse proxy with least-loaded replica routing, connection-aware autoscaling, crash recovery with exponential backoff, deployment rollbacks, and real-time WebSocket logs.

Built a persistent in-memory key-value store in Go using append-only file persistence, memory-mapped recovery, CRC32 record integrity checks, background log compaction, and RWMutex-based concurrent access. Benchmarked ~70–80 ns reads with zero allocations and concurrent reads scaling across CPU cores.

Built a foundational Linux container runtime in Go using kernel primitives including UTS/PID/mount namespaces, pivot_root, OverlayFS, procfs, and cgroups v2. Implements isolated process execution, layered filesystems, and resource limits without relying on a container-runtime framework.

Production-grade system to handle high-throughput event ingestion, guarantee at-least-once delivery with idempotency, and seamlessly route messages to connected clients in real-time.