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© 2025 Nimir Khan. All rights reserved.

Selected Work

I don't just write code; I architect solutions. Below are selected projects that demonstrate my ability to build secure, scalable, and production-ready systems.

CryptoCloud Pro

CryptoCloud Pro

Zero-Knowledge Cloud Storage Architecture

A production-grade secure storage solution where the server has absolutely zero access to user private keys. Files are encrypted client-side using a hybrid AES-256-GCM + RSA-OAEP scheme before they ever touch the network.

  • Hybrid Encryption: Random AES key per file, wrapped with user's RSA public key.
  • Secure Sharing: Presigned S3 URLs with time-bound access control.
  • Privacy by Design: Authentication state never exposes decryption keys to the backend.
FastAPINext.jsCryptographyAWS S3Docker
Live DemoSource Code
EventEase

EventEase

Enterprise Event Management System

A highly scalable event platform featuring complex relationship management. While the UI is clean, the powerhouse lies in the backend architecture which handles intricate permission levels and data consistency.

  • Advanced RBAC: Granular permission scopes for Admins, Organizers, and Attendees.
  • Database Design: Normalized PostgreSQL schema optimized for complex joins.
  • Security: JWT Authentication with automatic token rotation and scope validation.
FastAPISQLAlchemyPostgreSQLNext.jsRBAC
Source CodeAPI Docs / Readme
LumiProject

LumiProject

Official Platform for Lumiorc

Contributed to the core backend infrastructure of a live SaaS product. Focused on optimizing database interactions and ensuring secure authentication flows for real-world users.

  • Performance: Optimized MongoDB aggregation pipelines to reduce dashboard load times.
  • Integration: Seamlessly bridged Firebase Authentication with custom Flask middleware.
  • Reliability: Diagnosed and resolved production-level API bottlenecks.
FlaskFirebase AuthMongoDBProduction
Live Demo

Professional Experience

Backend Engineer (Intern)

Lumiorc
2024 — Present
  • Engineered secure REST APIs using Flask, ensuring strict data validation and type safety.
  • Reduced database query latency by optimizing MongoDB aggregation pipelines for the analytics dashboard.
  • Implemented Role-Based Access Control (RBAC) via Firebase Authentication to secure administrative routes.

Resume

A concise overview of my technical stack, education, and architecture experience.

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Get in Touch

Open to discussing backend engineering roles and security-focused opportunities.

Contact Info