Sooraj D

I’m a Senior Software Engineer with 2.5+ years of experience designing and scaling backend and distributed systems using Node.js, MongoDB, PostgreSQL, Redis, Kafka, and Docker. I’m currently owning end-to-end development of a workflow automation platform powering WhatsApp-based e-commerce operations. My focus is strong ownership, performance optimization, and building developer-centric internal platforms.

At ViewZen Labs, I architected and developed an internal workflow engine (similar to n8n) that supports sequential, parallel, and conditional execution. I implemented async task orchestration with BullMQ, including retries, delays, failure handling, and state persistence. I also designed trigger-based workflows reacting to external events like order placement, payment completion, and webhooks, significantly reducing manual operational effort.

Previously, I delivered the Appverse – Data Collection Platform by building secure binary deployments with PKG and Docker, reducing delivery size by 30%. I introduced semantic versioning pipelines to cut deployment errors and rollback time by over 40%, and I integrated Sentry with source maps to reduce production debugging time by 50%. I upgraded MongoDB replica sets, optimized aggregation pipelines for high-volume queries, and implemented an S3-based storage strategy to lower infrastructure costs while improving cross-environment file accessibility and maintainability.

I also built Identity and Access Management capabilities, migrating authentication from JWT to secure cookie-based sessions with CSRF protection and implementing TOTP-based multi-factor authentication plus Google OAuth login. I integrated Infisical Vault for secure secret storage and automated rotation, and I improved authorization latency by 30% through MongoDB indexing and aggregation pipeline optimization. As a backend developer, I bring a security-first mindset, pragmatic architecture, and a drive to turn complex processes into reliable systems.