I am a Software Engineer specializing in the lifecycle engineering of low-latency, highly concurrent backend systems, microservices, and custom routing infrastructure using Go and Python. My focus centers on architectural performance tuning, building secure system boundaries, and implementing decoupled, modular clean architectures.

• ⚙️ Core Focus: High-throughput proxy engines, asynchronous messaging topologies, and custom protocol level content-filtering (SMTP/IMAP).
• 🛠️ Technical Depth: Network-layer profiling, connection telemetry caching design via Redis, rate-limiting, and deep query/indexing optimization.
• ⚡ Production Impact: Engineered system optimizations and database strategies that successfully cut production API response latencies by 25%.
• 🔒 Security Engineering: Architected low-level hooks for server post-login validation, multi-factor authentication (2FA over IMAP/POP3), and automated cryptographic key management (DKIM/DNS provisioning).
• 📫 Communication: Let's connect directly via chethan.nv12@gmail.com.

• IMAP Gateway: Built a high-performance IMAP API via Go-Fiber and emersion/go-imap to act as an asynchronous proxy between web frontends and core mail servers, using memory datastores for credential session validation.
• SMTP Gateway: Engineered an isolated SMTP route capable of direct delivery to MX relays without intermediary MTAs, utilizing net/textproto and enmime for granular stream feedback and integrated soft-retry connection management.

• Developed custom network-level filter hooks in Go integrated natively with Postfix routers. Parses inbound payloads on the wire to dynamically extract structures, run rule-based anti-spam scanning matrices, and enforce transport actions.

• Formulated a concurrent chat environment based on persistent, streaming WebSocket channels. Enforces explicit Clean Architecture division lines (Handlers -> Services -> Repositories) to provide cleanly mockable interfaces and deterministic test execution profiles.