Work Experience

Professional roles and projects that showcase my expertise and career progression.

Anchanto|Jan 2025 - Present|Pune, Maharashtra

Designed and implemented a branded notification system using Amazon SES, Twilio, Redis, FastAPI, Celery, Flower, and smtplib, achieving fault-free processing of 15M events/day.
Engineered a fault-tolerant, multi-tenant cloud architecture with autoscaling, intelligent routing, and automated rollbacks, ensuring 99.99% uptime and seamless failover.
Optimized SQL queries and caching strategies, reducing average API response time by 30%.
Developed a database connection pooler using PgBouncer, reducing PostgreSQL connection exhaustion incidents and improving database availability by 70%.
Led code reviews and mentoring initiatives, reviewing 50+ pull requests/month.

Anchanto|Jan 2022 - Dec 2024|Pune, Maharashtra

Architected a versatile multi-tenant application enabling zero-downtime tenant switching, improving efficiency by 40% and enhancing scalability.
Pioneered and engineered a Role-Based Access Control (RBAC) system, securing permissions for 1,000+ users across multiple roles, improving compliance and data security.
Automated 18 key operations (e.g., billing, API usage tracking, and health checks) using Celery, reducing manual workload and enhancing monitoring capabilities.
Built and revamped 30+ high-performance RESTful APIs using Django, FastAPI, Redis, and PostgreSQL, enhancing system efficiency and reliability.
Created 40+ reusable UI components with 90% test coverage for high reliability.
Constructed a scalable, containerized pipeline processing 500M events/month for 30M parcels.
Integrated Cypress, cutting dev testing time by 60% and enhancing code quality.

Jano App|Jun 2021 - Aug 2021|Kolkata, West Bengal

Enhanced backend services in Node.js and Firebase, reducing API response times by 35% and enhancing scalability. and implemented a branded notification system using Amazon SES, Twilio, Redis, FastAPI, Celery, Flower, and smtplib, achieving fault-free processing of 15M events/day.
Integrated Firebase Translate Extension to enable multilingual content, expanding user accessibility to 5+ languages and improving engagement by 30%.

Securaeon Initiative|Aug 2020 - Sep 2020|Kolkata, West Bengal

Completed full design of the website to improve navigation, enhance visuals.
Engaged with UI/UX Designer to plan, optimize and repair site issues and queries.
Supervised 2 team members for the ongoing Web Development project.
Reviewed code to ensure stability.