Raj Dave · Python / GenAI Backend Developer · 3+ yrs
JuniorAbout Raj
Raj Dave is a Backend Developer building Django Invoice Automation + Task Management Platform + Service Integration API Hub (Gmail + Jira + Trello). Specializes in Django + Python + LLM across Invoice + Task + API Integration domains.
3+ years of commercial experience in
Skills(35)
Why hire Raj?
Backend Developer + Django + LLM + 3 projects
Invoice Automation — Django + automatic invoice + tracking + email
Task Management — task creation + assignment + audit logs
Service Integration API Hub — Gmail + Jira + Trello workflow
Built Invoice Automation + Task Management + Service Integration
Project highlights(3)
Invoice Automation System – Backend Developer
- Django-based system to automate invoice processing for enterprise clients — automatic invoice generation, tracking, emailing and integration with third-party accounting platforms.
- Designed and developed modular production-ready REST APIs with Django + DRF.
- Implemented TDD with PyTest for backend modules.
- Architected multi-tenant PostgreSQL schema for invoice data management.
- Integrated Celery + Redis to handle background tasks (invoice generation, email dispatch).
- Wrote OpenAPI/Swagger documentation for internal + third-party integration teams.
- Containerised with Docker; CI/CD via GitHub Actions.
Key outcomes:
Built Invoice Automation System with multi-tenant PostgreSQL schema and Celery/Redis background-task processing.
Task Management Platform – Backend Developer
- Scalable task management system for teams — task creation, assignment, tagging, notifications, activity tracking with audit logs and role-based access control.
- Built REST APIs for task creation, assignment workflows, notifications and RBAC.
- Followed TDD approach for all feature additions and refactors.
- Designed MySQL schema optimised for fast lookups and audit logging.
- Integrated JWT-based authentication with role-based permissions.
- Ensured API versioning and backward compatibility for mobile/web clients.
- Implemented logging and monitoring with structured logs.
Key outcomes:
Delivered task-management platform with JWT RBAC, audit logging and TDD-driven backend.
Service Integration API Hub – Backend Developer
- API integration hub connecting enterprise systems — Gmail, Jira and Trello — to a unified backend for workflow automation. Supports secure two-way syncing and webhook-based communication.
- Created modular API endpoints connecting third-party services with internal tools.
- Implemented TDD with Factory Boy and Mock to simulate external API behavior.
- Engineered scalable database models to store third-party tokens, sync status and logs.
- Developed OAuth2 authentication flows and webhook listeners for Jira and Gmail.
- Authored technical documentation and onboarding guides.
- Reviewed PRs and mentored junior developers.
Key outcomes:
Built API hub connecting Gmail, Jira and Trello via OAuth2 + webhooks with TDD-driven mock-tested integration.
Industry experience
SaaS / B2B
3 projects- •Invoice Automation System— Backend DeveloperPython · Django · DRF · PostgreSQL +5
- •Task Management Platform— Backend DeveloperPython · Django · DRF · MySQL +4
- •Service Integration API Hub— Backend DeveloperPython · Django · DRF · PostgreSQL +6
Manufacturing & Industrial
2 projects- •Invoice Automation System— Backend DeveloperPython · Django · DRF · PostgreSQL +5
- •Service Integration API Hub— Backend DeveloperPython · Django · DRF · PostgreSQL +6
At a Glance
Single contract. No agency markup confusion.
Typically responds within 4 business hours.
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Raj Dave
LLM Python TopCoder