Ruhban Abdullah

Software Engineer | Backend Developer

Backend Engineer specializing in scalable backend systems, REST APIs, real-time architectures, and cloud infrastructure using Node.js, Express.js, MySQL, MongoDB, and AWS.

About

I am a Backend Engineer based in India. I have over two years of professional experience designing, building, and maintaining high-performance backend services, database architectures, and production cloud infrastructure.

My work focuses on architecting distributed systems, building concurrent WebSocket services, optimizing complex queries in MySQL and MongoDB, and deploying production environments on AWS. I care deeply about system reliability, clean API design, and building software that scales predictably under load.

Skills

Projects

Showing 4 of 4 featured projects

VaultX — Personal Digital Vault Platform

Enterprise-grade personal digital vault designed for secure storage and instant access to identity documents, cards, notes, certificates, and medical records. Solves the risk of unencrypted cloud storage through client-to-cloud security.

Engineering Highlights: Architected biometric authentication flows, AES document encryption, chunked large-file upload streaming directly to Cloudflare R2, MongoDB Atlas aggregation pipelines, and secure time-limited document sharing tokens.

Technologies: Flutter, React.js, Node.js, MongoDB Atlas, Cloudflare R2, JWT, REST APIs

GitHub Repository | Live Demo

WOW'S — Real-Time Live Streaming Platform

Scalable real-time social entertainment platform with live video broadcasting, virtual gifting, synchronized real-time comments, audio streaming, and an in-app coin economy. Built to eliminate concurrency bottlenecks and reduce operational costs under rapid traffic spikes.

Engineering Highlights: Architected complete backend migration from Firebase to custom high-concurrency AWS EC2 and MySQL architecture; designed WebSocket event multiplexing and Agora RTC integration for sub-second latency across 15,000+ active users.

Technologies: Flutter, PHP (CodeIgniter), MySQL, AWS S3, WebSockets, Agora RTC, REST APIs

piCloud — Cloud Storage & File Management System

Distributed cloud storage and file management platform focused on scalable file uploads, role-based access control, storage optimization, and secure media delivery.

Engineering Highlights: Engineered granular Role-Based Access Control (RBAC), presigned upload URLs directly to AWS S3 bucket partitions, automated thumbnail generation pipelines, and storage quota governance.

Technologies: Node.js, Express.js, MongoDB, AWS S3, REST APIs, RBAC

Private Queue & Operations Management Platform

Real-time queue orchestration and operations management system engineered with deterministic queue state transitions, dynamic wait-time calculations, and concurrency safeguards.

Engineering Highlights: Developed deterministic FIFO concurrency state machine preventing race conditions in high-volume request workflows, algorithmic dynamic wait-time estimations, and live WebSocket client synchronization.

Technologies: Node.js, Express.js, MongoDB, MySQL, WebSockets, RBAC

More Open Source & Backend Projects

Additional backend systems, automation tools, experimental architectures, and utilities are available on GitHub.

github.com/shahruhban01

Live Public Repositories (GitHub API)
PersonalDocVault Featured

Enterprise-grade personal digital vault with biometric auth, chunked uploads, and encrypted document management.

JavaScript / Node.js Open Source
simple-portfolio Active

Clean, accessible, high-performance portfolio featuring interactive games, developer terminal, and analytics.

HTML / JavaScript Open Source

Experience

Backend Developer / Engineer — FoodHung

Remote | Aug 2025 – Feb 2026 | Full Time

  • Architected and developed RESTful APIs using Node.js and Express.js supporting 10,000+ users and handling 200–400 requests/sec.
  • Optimized MySQL and MongoDB queries via indexing and query tuning, reducing average response time by 25–35%.
  • Improved API performance through pagination, caching strategies, and efficient data access patterns.
  • Deployed backend services on AWS EC2 with health monitoring and auto-restart mechanisms.
  • Integrated CI/CD pipelines to streamline deployment workflows and minimize manual operational overhead.

Software Developer — World Social Integration

Hybrid | Jun 2024 – Jul 2025 | Full Time

  • Built backend services using Node.js, PHP, and MySQL supporting 15,000+ concurrent users.
  • Implemented REST APIs and WebSocket communication for real-time interactions.
  • Scaled backend systems to handle high-concurrency data flow and real-time application behavior.
  • Managed AWS-based deployments and backend infrastructure for production environments.
  • Improved system maintainability and reliability through structured backend architecture.

Backend Engineering Intern — FoodHung

Remote | Jan 2025 – Jul 2025 | Internship

  • Developed backend APIs using Node.js, Express.js, and MongoDB.
  • Built and optimized internal endpoints, improving responsiveness and maintainability.
  • Implemented authentication flows, request validation, and secure business logic.
  • Collaborated on production cloud infrastructure and deployment workflows.

Education

Bachelor of Computer Applications (BCA)

Govt. Degree College Baramulla (Autonomous) | 2023 – 2026

Focused on backend engineering, data structures, database management systems, operating systems, and computer networks.

Contact

Feel free to reach out for work inquiries, collaboration, or engineering discussions:

Send a Direct Message