Sayam Alvi

Full Stack Software Engineer with 2 years of experience building and maintaining web applications using React.js, Next.js, Node.js, Nest.js, and PostgreSQL. Experienced in designing scalable backend services, developing responsive user interfaces, integrating distributed systems, and delivering end-to-end solutions across the software development lifecycle.

SDE 1 - Full Stack at Nabeh (Master Works) (2025-08 – Present)

• Delivered production-grade features for a VIP monitoring platform, contributing to a 30% increase in client billable scope.
• Optimized PostgreSQL queries from ~8s to ~20ms and ~17s to ~1.2s on 300k+ record tables using trigram indexes, composite indexes, lateral joins, and query plan optimization.
• Developed real-time monitoring and surveillance modules for tracking VIP movement and lounge operations.
• Refactored to a service/repository architecture with centralized error handling, cutting duplicated logic and debugging time.
• Implemented centralized logging and observability using Prometheus, Grafana, Loki & Promtail.
• Deployed and maintained on-premise applications on Ubuntu servers for client demos and production environments.

Full Stack Developer at Freelance (2024-10 – 2025-05)

• Listerr.in: Built customer-facing Next.js frontend features for a local-store e-commerce platform.
• Agrigravity: Migrated 8 Node.js APIs & MongoDB schemas to Bun.js & PostgreSQL, improving CRM uptime to 99%.

Junior Associate Full Stack Developer at Kainskep Solutions (2024-05 – 2024-09)

• Optimized firestore storage by changing data structure & minimizing read/write operations, reducing monthly estimated costs by ~80%.
• Engineered and developed an LMS having 2,000 users, improving instructor grading efficiency by ~25%.
• Implemented security features like RBAC & OTP verification.
• Implemented complex frontend components and backend API integrations between REST & GraphQL.

BCA – SS Jain Subodh PG College (2021 – 2024)