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Sepehr Rajabi

@sepehrrajabi1

Message

I build high-scale Django backends and real-time computer vision pipelines.

Germany

Message

At Avije Pardaz Pars, I architected and implemented a Django backend platform spanning roughly 40,000 lines of production code, from system architecture and database schemas to REST APIs and deployment.

I optimized Django ORM queries to reduce database load by about 40%, maintaining sub-200 ms response times for 1 million daily requests.

I also designed and deployed a real-time license plate detection and OCR pipeline with YOLOv11 and ONNX Runtime, processing more than 50,000 detections daily with end-to-end latency below 400 ms.

Alongside backend and machine learning work, I’ve built authenticated REST APIs for freelance clients, collaborated on Golang and Rust services, and support IT systems operations at GWDG.

Experience

Work history, roles, and key accomplishments

Current

Student Assistant – IT Support / Systems Operations

Current

GWDG – Society for Scientific Data Processing

Aug 2026 - Present (1 month)

Support day-to-day IT operations and the administration of IT systems. Check and configure systems and devices, analyze system status and technical issues, and collaborate with experienced IT staff on troubleshooting and issue resolution.

IT Operations System Administration Troubleshooting

Backend Engineer

Avije Pardaz Pars

Mar 2024 - Oct 2025 (1 year 7 months)

Solely architected and implemented the Django backend platform, including system architecture, database schema design, REST API design, and deployment strategy. Implemented efficient Django ORM queries, reducing database load by ~40% and ensuring stable response times under 200ms for 1M daily requests. Independently designed and deployed a real-time license plate detection and OCR pipeline using Y

Python Django Django REST Framework PostgreSQL Redis Celery Docker ONNX Runtime PyTorch YOLO Linux Rust Go

Teaching Assistant

Shahid Beheshti University

Jan 2022 - Jan 2024 (2 years)

Served as a teaching assistant for courses in General Topology, Complex Functions, and Real Analysis.

Backend Engineer

Freelance Web Development

Sep 2023 - Nov 2023 (2 months)

Developed RESTful APIs using Django REST Framework and PostgreSQL for a client project. Implemented JWT authentication and role-based access control, and containerized the application with Docker for straightforward deployment.

Python Django Django REST Framework PostgreSQL Docker JWT Role Based Access Control