Papan Sarkar

Senior Full Stack Engineer · Python, Django / FastAPI · Technical Consultant

West Bengal, India · Available for contract & consulting engagements
papansarkar.com/portfolio · linkedin.com/in/papansarkar101 · github.com/papansarkar101

Professional Summary

Senior Full Stack Engineer and Technical Consultant with over 6 years of experience architecting and scaling SaaS platforms, AI-driven products, and enterprise automation systems. Deep expertise in Python (Django/DRF, FastAPI), React, and AWS. Proven track record leading cross-functional engineering teams, optimising high-concurrency database architectures, and delivering production software for clients across four continents.

Core Competencies

Backend: Python, Django, Django REST Framework, FastAPI, Node.js, Express, REST & GraphQL APIs
Architecture & Scaling: Multi-tenant SaaS, microservices, PostgreSQL, MongoDB, Redis caching, Celery async queues
Frontend & UI/UX: React.js, Vue.js, JavaScript (ES6+), HTML5/CSS3, Figma design systems
Cloud & DevOps: AWS, Docker, CI/CD pipelines, serverless deployments, system optimisation
Leadership: Technical strategy, sprint planning, code review, developer mentorship, system architecture

Professional Experience

Senior Full Stack Engineer · Gyanbeej

Oct 2024 – Present

Django, Education AI | India · Remote (Part Time)

Architected the complete scalable backend from scratch using Django and MongoDB, supporting high-throughput AI-driven query processing for students.
Engineered context-aware API workflows integrating class, subject, and historical metadata, improving LLM response accuracy and context retrieval speed.
Authored and published gyanspark on PyPI, a Python client SDK enabling third-party API integration for automated AI educational workflows.

Co-Founder & Development Manager · Yestoideas

Feb 2022 – Aug 2026

India · Remote

Co-founded and scaled a web development agency delivering 30+ production applications across SaaS, logistics, compliance, education and analytics. Led a 5-member engineering team, owning technical strategy, hiring, and delivery standards.
Built and shipped flagship products including MandarinBoost, a Chinese language learning platform (Django, PostgreSQL, Neo4j), and RankEval, an evaluation and operational workflow platform.
Embedded as technical consultant with client engineering teams at Ironfort, MetroMax Group (FleetDrive360), Pitchline, Sox Logistics, and DrayToDock — guiding architecture decisions, unblocking development, running code and quality reviews, and presenting demos to their end clients.
Architected multi-tenant backend systems with Django, PostgreSQL, Redis, and Celery, supporting concurrent client workloads on shared infrastructure.

Frontend Developer · Preflet

May 2021 – Nov 2021

Portugal · Remote

Developed responsive, user-centric frontend modules and Figma UI/UX prototypes for web applications.
Implemented interactive dashboard components that improved user engagement and visual data representation.

Full Stack Developer · Pikkal

Jan 2021 – Apr 2021

Singapore · Remote

Enhanced a marketing automation platform using Django and Vue.js, implementing custom campaign management and data visualisation modules.
Automated reporting workflows and integrated third-party analytics tools, accelerating data processing and marketing insight.

Open Source

drf-prefetch-hint Python package · MIT case study →

Django REST Framework tool that identifies N+1 queries and generates the exact select_related / prefetch_related call to fix them. Attributes every query to the serializer field that caused it by wrapping DRF's attribute resolution and tagging queries through Django's execute_wrapper. Dev-only, no middleware, no runtime hook. Supports Python 3.10–3.13, Django 4.2–5.1.

Education

B.Tech, Computer Science & Engineering

St. Mary Technical Campus, Kolkata | 2020 – 2023 · CGPA 9.08 / 10

Diploma, Computer Science & Technology

Bipradas Pal Chowdhury Institute of Technology | 2017 – 2019 · CGPA 8.4 / 10

Additional Information

Languages: English (fluent), Hindi (fluent), Bengali (native)
Availability: Open to global remote, consulting, leadership, and contract roles

Get in touch → Download as PDF Updated October 2026