Manoj Paudel

Backend work on payments and transactions at IME Khalti, one of Nepal's leading digital wallets.

• Building and maintaining Django and DRF services for payment processing and transactions.
• Integrating banks and third-party payment providers.
• Moving slow work into background jobs with Celery and Redis.
• Optimizing database queries with the Django ORM and raw SQL.
• Shipping containerized services with Docker and Kubernetes, with code review on every change.

Backends for geospatial products, from data ingestion to serving map tiles.

• Versioned, documented REST APIs in Django and DRF.
• Geospatial ingestion and queries with GeoDjango, GDAL, PostGIS and the Overpass API.
• Vector and raster tile pipelines for map rendering.
• Speeding up heavy map queries with raw SQL, spatial indexes and caching.
• gRPC between some internal services, and background jobs on Celery and Redis.
• Data processing with NumPy, Pandas and GeoPandas, plus logging and monitoring for the tile servers.

Django development across APIs, real-time features and multi-tenant apps.

• APIs with Django REST Framework and JWT authentication.
• Real-time chat and notifications over WebSockets.
• Multi-tenant setup with django-tenants.
• Celery jobs, data migrations between database engines, and scrapers with BeautifulSoup.
• Deployments on DigitalOcean and cPanel.