MANGESH CHAVAN
Pune
Summary
Senior Django/Python software engineer with 5 years of experience in developing scalable backend architectures and high-performance REST APIs. Proficient in Django 5.1 and AWS migrations, with a strong focus on managing complex asynchronous systems. Successfully scaled systems to accommodate over 40,000 users, showcasing technical expertise and leadership capabilities.
Overview
5
5
years of professional experience
Work History
Senior Back-End Developer
Happy Thoughts App
Pune
01.2021 - Current
- Engineered a modular backend serving 10+ applications with 100+ endpoints; implemented DRF Spectacular for automated OpenAPI documentation
- Led transition from a CMS to a robust Django/Postgres/AWS stack, scaling the platform to support 40,000+ monthly active users
- Built a 15+ queue Celery/RabbitMQ architecture for media transcoding and task automation
- Optimized retrieval using pgvector semantic search, Materialized Views, and GIN indexes
- Spearheaded Keycloak SSO integration, managing systematized user synchronization and token introspection via OAuth 2.0
- Cut deployment time by 50% via GitHub Actions and Amazon ECS CI/CD
- Mentored a 3-person engineering team, overseeing end-to-end sprint execution
- A platform delivering digital solutions with a focus on user engagement and backend efficiency
Project Lead
Ambarsthan - Accommodation & Booking
Pune
10.2025 - Current
- Implemented a concurrency-safe room booking system with auto-expiry logic, increasing successful bookings by 35% and preventing revenue loss from overbooking
- Built a computerized waitlist system with real-time capacity tracking and notification triggers, ensuring consistent state under concurrent updates
- Created advanced Django Admin interfaces with custom filters and bulk-action tools to empower non-technical operations teams
- A booking platform specializing in accommodation solutions
Senior Back-End Developer
Happy Thoughts Learning Platform (LMS)
Pune
01.2024 - 11.2025
- Designed a multi-app backend (CMS, Analytics, IAM) to manage complex course hierarchies, assessments, and multilingual content
- Designed and deployed a subscription and entitlement system supporting thousands of active subscribers, with real-time payment validation and access enforcement
- Developed mechanized pipelines for video/audio streaming formats and API-driven transcription for full-text indexing
- Engineered learner-progress tracking using scheduled Celery jobs and PostgreSQL views to deliver real-time attendance and completion reporting
- An educational platform offering various learning management solutions
Education
Master of Computer Science -
Green Finger College
01.2019
Skills
- Django
- AWS
- PostgreSQL
- Celery
- OAuth
- Keycloak
Accomplishments
- Successfully evolved a fragmented ecosystem into a cohesive 10-app modular platform.
- Integrated Sentry and structured logging, achieving significantly higher uptime for critical payment and booking flows.
- Reduced manual developer support by 40% through custom-built rich-text email editors and operational dashboards.
Languages
- English
- Hindi
- Marathi
Timeline
Project Lead
Ambarsthan - Accommodation & Booking
10.2025 - Current
Senior Back-End Developer
Happy Thoughts Learning Platform (LMS)
01.2024 - 11.2025
Senior Back-End Developer
Happy Thoughts App
01.2021 - Current
Master of Computer Science -
Green Finger College