Sumit Zalake

Python Backend Developer with hands-on experience designing and developing production-grade REST APIs, backend services, and microservices using Python, FastAPI, PostgreSQL, SQLAlchemy, Docker, and AWS(ECS, EC2, RDS, S3, Lambda, IAM). Strong experience in backend architecture, API design, authentication and authorization, database optimization, asynchronous programming, and CI/CD. Experienced in building enterprise document workflow systems, cloud-based backend services, and AI-powered applications using LLM integration, RAG, and automation.

Hands-on experience with OAuth2, JWT, RBAC, Azure AD, GCP, and production deployments.

Software Engineer – Python Backend Developer at Neutrino Tech System (2026-01 – Present)

• Design and develop production-grade REST APIs, backend services, and microservices using Python and FastAPI for enterprise applications.
• Designed backend services for an enterprise document workflow management system using FastAPI, PostgreSQL, and Docker, enabling document processing and workflow automation.
• Built secure API authentication and authorization using OAuth2, JWT, Azure AD, and RBAC, supporting enterprise applications serving 500+ users.
• Optimized PostgreSQL queries, indexing, and SQLAlchemy ORM operations, reducing average query response time by 30% and improving overall backend scalability.
• Developed PDF generation and secure file attachment services with AWS S3 integration, processing 200+ documents daily across enterprise workflows.
• Worked with Azure cloud services and Snowflake for data integration, backend workflows, and enterprise data processing.
• Deployed and supported backend services using AWS ECS, EC2, RDS, S3, Lambda, IAM, covering application hosting, database management, and file storage.
• Implemented GitHub Actions CI/CD pipelines to automate application build, testing, and deployment workflows, reducing deployment time by 40%.
• Contributed to backend architecture, API integration, database design, debugging, performance optimization, and production issue resolution within Agile/Scrum environments.

Associate Software Engineer at Neutrino Tech System (2024-01 – 2025-12)

• Developed scalable REST APIs and backend services using Python, Django, and PostgreSQL for enterprise applications.
• Built backend workflows for intelligent adverse event analysis and automated report generation, supporting automated data processing and reporting.
• Integrated LLM-based workflows and RAG applications to enable contextual information retrieval and intelligent automation.
• Developed AI-powered backend workflows and cloud-native applications using Python, FastAPI, and GCP for automation and intelligent data processing.
• Implemented API integrations, database workflows, debugging, and backend performance improvements across enterprise applications.

Python Full Stack Developer – Intern at Divyansh Consultancy Services (2023-09 – 2023-11)

• Developed web applications using Python, Flask, HTML, Bootstrap, and SQLite with backend API integration.
• Implemented CRUD operations, database interactions, and REST APIs to support application workflows and frontend-backend communication.

Master of Computer Applications in Computer Applications – Bharati Vidyapeeth (2021 – 2023)

Bachelor of Science in Computer Science in Computer Science – Shivaji University (2018 – 2021)