Dheeraj Pandey

Experienced Senior Python Developer with 6 years in backend development, specializing in FastAPI, Django, REST APIs, and AI/LLM integrations. Proven expertise in designing scalable high-performance systems and building secure, reliable, maintainable microservices and monolithic architectures. Experienced across the full SDLC, with strong exposure to cloud platforms (AWS & Azure) and Agile environments.

Python Backend Developer at Systango Technologies Limited (2024-01 – Present)

Designed and developed scalable REST APIs and implemented secure authentication and authorization systems.

• Designed and developed scalable REST APIs using Django and FastAPI.
• Implemented OAuth2-based authentication integrating Microsoft Azure AD and Google Identity services, enabling secure Single Sign-On (SSO) and role-based access to backend APIs.
• Implemented asynchronous workflows using Celery and Redis.
• Developed QR-based campaign management workflows and integrated third-party APIs.
• Integrated Azure Blob Storage and AWS S3 for secure file storage.
• Designed and implemented database models and optimized complex queries using PostgreSQL to improve system performance.
• Integrated third-party APIs for product registration, QR generation, and campaign management workflows.
• Implemented role-based authentication and authorization to support multi-user access control.
• Built reusable and modular API components to improve maintainability and scalability of backend services.
• Implemented error handling, logging, and retry mechanisms for reliable background task execution.

Software Developer at PTWI (SIDE) (2023-09 – 2024-01)

Developed backend services for managing audio workflows with JWT authentication and AWS S3 integration.

• Developed backend services using FastAPI for managing audio workflows.
• Implemented JWT-based authentication and role-based access control.
• Designed file upload workflows using AWS S3.
• Designed PostgreSQL database schemas for managing audio metadata and user records.
• Optimized API performance to handle large audio file operations efficiently.

Software Developer at RAF Solutions LLP (2023-07 – 2023-08)

Software Developer at ITE Software Solutions Pvt Ltd (2020-04 – 2023-06)

Developed backend modules for a Learning Management System with asynchronous task processing.

• Developed backend modules for a Learning Management System (LMS).
• Implemented student enrollment and invoice generation workflows.
• Built asynchronous PDF generation tasks using Celery and Redis.
• Developed REST APIs to support frontend LMS modules.
• Implemented validation logic and optimized database queries for better performance.

Bachelor of Engineering (B.E.) in Electronics & Communication Engineering – Gyan Ganga College of Technology, Jabalpur (2012-08 – 2016-06)