Mushfikunnabi Nijhum

About Me

Education

MEng Information Systems Security
Concordia University '26

Experience

Shipping production code since 2021
Full Stack & Cloud Development

Experience & Education

1. Full Stack Developer (HEAD -> oloodi)

   September 2026 – Present

   Oloodi · Montréal, QC

   I work on a workforce management platform for events, hospitality and enterprise staffing: the React web dashboards, the Flutter apps and the Node.js + PostgreSQL API.

   [+][-]show 8 contributionshide contributions

   • +Build features end to end for a workforce management platform for events, hospitality and enterprise staffing, across React 19 web dashboards, Flutter mobile apps and a Node.js/Express + PostgreSQL API.
   • +Built the QuickBooks Desktop integration: vendors link workers and pay items, then send approved hours and invoices through a queue collected by the QuickBooks Web Connector, and payments made in QuickBooks mark invoices as paid.
   • +Designed a benefits and leave system with vendor-defined leave categories (earned from hours worked, granted by the vendor, or paid public holidays), worker requests from the mobile app, and vendor approvals on web.
   • +Made order creation and editing reliable for one-time, recurring and permanent orders on web and mobile: surfaced silently dropped worker assignments with a reason per worker, fixed shift-numbering conflicts on edits, and recorded failures for diagnosis without storing worker identity.
   • +Corrected client and vendor reporting (spend, fill rate, no-show rate) behind one API shared by web and mobile, and redesigned the web Reports page with period filters and CSV/PDF export.
   • +Moved chat storage fully onto Stream Chat behind a feature flag, removing duplicated message tables and sync scripts, and fixed shift chats so they reach client and vendor and turn read-only when a shift ends.
   • +Extended billing with vendor-only invoice editing until client approval, extra staff entries and charges, and a per-hub invoice week start day.
   • +Built a one-command demo seeder that creates an account with three months of realistic history, and back changes with API, migration and schema-contract tests.

   oloodi.com ↗

2. Master of Engineering in Information Systems Security (concordia)

   May 2024 – April 2026

   Concordia University · Montreal, QC, Canada

   CGPA: 3.73/4.3

3. Software Engineer (tag: medistack)

   January 2025 – February 2026

   MediStack · Remote

   Healthcare SaaS. Shipped Next.js interfaces and Node.js APIs, a LangChain + LangGraph RAG assistant, a prescription builder covering 28k+ medicines, and real-time scheduling.

   [+][-]show 9 contributionshide contributions

   • +Contributed to a SaaS-based healthcare platform, delivering scalable, user-focused features by translating Figma designs into responsive UI using NextJS and building REST APIs using NodeJs; reduced load time by ~20%.
   • +Developed a RAG-based knowledge assistant using LangChain for document processing, embeddings, vector retrieval, and response generation, with LangGraph orchestrating stateful, multi-step retrieval and answer-generation workflows
   • +Improved frontend performance via lazy loading components and caching, enhancing rendering speed and cross-device UX.
   • +Wrote unit tests using Jest to ensure code reliability and maintainability.
   • +Designed a prescription builder with 28k+ medicines, with extensive customization for doctors.
   • +Developed patient journey tracking system for complex treatments, improving care coordination and visibility.
   • +Implemented real-time scheduling with calendar integration, reducing booking conflicts by ~25%.
   • +Introduced patient care tools with treatment progress tracking and dashboards, helping doctors monitor patient outcomes more effectively.
   • +Mentored and supported junior developers and interns through code reviews, technical guidance, and best practices, improving team productivity and code quality.

   medistack.net ↗

4. Software Engineer (tag: intercloud)

   May 2022 – April 2024

   Intercloud Limited · Dhaka, Bangladesh

   Brilliant Cloud, Bangladesh's first IaaS portal. Built IAM, the Kubernetes-as-a-Service frontend, monitoring for 15+ microservices, and a ticketing platform (1000+ requests a day).

   [+][-]show 9 contributionshide contributions

   • +Contributed to the Bangladesh’s first IaaS Brilliant Cloud Portal (BCP) used by thousands of enterprise clients, improving frontend scalability and usability.
   • +Reduced load time by ~30% through component refactoring and React.js and Material UI performance optimizations.
   • +Owned backend and frontend development of a support ticketing platform handling 1000+ daily requests, that digitized customer complaints, reducing manual handling and improving support turnaround time.
   • +Developed Electronic Document Management Systems (EDMS) with AWS S3, reducing paper-based HR processes by ~90% and improving document access speed.
   • +Managed end-to-end deployment pipelines using Docker, building images, pushing to registry, and maintaining production services on remote VMs with CI/CD pipelines defined in YAML.
   • +Built IAM system enabling fine-grained access across cloud resources, improving access control efficiency by ~40%.
   • +Delivered frontend for Kubernetes-as-a-Service platform, simplifying container orchestration workflows for enterprise users.
   • +Created monitoring and alerting systems frontend which supported 15+ microservices, improving reliability and reducing incident response time by ~50%.
   • +Debugged and resolved production issues to improve system stability.

   intercloud.com.bd ↗

5. Junior Software Engineer (tag: together)

   November 2021 – February 2022

   Together Initiatives (p) Ltd · Dhaka, Bangladesh

   Spring Boot backend for a point-of-sale system, plus RPA for telecom services.

   [+][-]show 2 contributionshide contributions

   • +Collaborated on backend development of a Point of Sale (POS) system using Java Spring Boot, enabling reliable processing of 500+ daily transactions.
   • +Worked on Robotic Process Automation (RPA) solutions for ROBI telecom services.

   i2gether.com ↗

6. Bachelor of Science in Computer Science & Engineering (init)

   January 2017 – June 2021

   BRAC University · Dhaka, Bangladesh

   CGPA: 3.64/4.00, Distinction

Featured Projects

total 7

• drwxr-xr-x medistack/live

  MediStack

  Healthcare Platform

  A comprehensive digital healthcare management platform designed to streamline medical practice operations and enhance patient care delivery. Built advanced prescription builder with 25,000+ medicines database, patient journey tracker for complex treatment plans, and appointment management system.

  • Next.js
  • TypeScript
  • Tailwind CSS
  • React Query
  • Healthcare APIs
  • Performance Optimization

  live: MediStack ↗

• drwxr-xr-x nijhums-blog/live

  Nijhum's Blog

  Full Stack

  A full stack personal blog site made with Python Flask-Restx (Backend) and Next.js + Tailwind CSS (Frontend) deployed in Brilliant Cloud using Docker and Docker Compose. It is completely mobile responsive and SEO friendly.

  • Next.js
  • Python
  • Flask-RestX
  • Docker
  • Docker Compose
  • Tailwind CSS

  live: Nijhum's Blog ↗

• drwxr-xr-x brilliant-ticketing/live

  Brilliant Ticketing System

  Frontend Development

  High-performance enterprise ticketing system handling 1000+ daily tickets with advanced pagination and real-time updates. Built with three-tier user hierarchy and role-based interfaces for streamlined customer support operations.

  • React.js
  • Material-UI
  • JavaScript
  • Pagination
  • Real-time Updates

  live: Brilliant Ticketing System ↗

• drwxr-xr-x brilliant-edms/live

  Brilliant EDMS

  Enterprise Platform

  Enterprise-grade Electronic Document Management System with Google Drive-like functionality. Features seamless single/multiple file uploads, cloud storage integration with Brilliant S3, advanced file viewing capabilities, and secure document management for enterprise clients.

  • React.js
  • Material-UI
  • JavaScript
  • AWS S3
  • File Management
  • Cloud Storage

  live: Brilliant EDMS ↗

• drwxr-xr-x brilliant-admin/live

  Brilliant Admin Portal

  Admin Platform

  Redesigned and enhanced admin portal frontend providing comprehensive cloud platform management. Improved user experience and operational efficiency with modern UI/UX design, streamlined workflows, and enhanced functionality for system administrators.

  • React.js
  • Material-UI
  • JavaScript
  • Admin Dashboard
  • UX/UI Design

  live: Brilliant Admin Portal ↗

• drwxr-xr-x brilliant-alarm/live

  Brilliant Alarm

  Cloud Platform

  Brilliant Alarm service is a part of Brilliant Cloud Portal (BCP). BCP is a cloud service provider and registered users can create alerts for their instances in that. I used ReactJs and Material UI to build the UI.

  • React.js
  • Material-UI
  • Cloud Services

  live: Brilliant Alarm ↗

• drwxr-xr-x brilliant-iam/live

  IAM (Identity and Access Management)

  Security & Access Control

  Identity and Access Management is a feature of Brilliant Cloud Portal. Root users can set roles for different cloud service and assign different person to maintain those roles. ReactJs, Material UI and redux was used to build the UI.

  • React.js
  • Material-UI
  • Redux
  • Access Management

  live: IAM (Identity and Access Management) ↗

Technical Skills

Languages

: TypeScript, JavaScript, Python, Dart, Java, SQL, HTML/CSS

Frontend

: React.js, Next.js, Vite, Tailwind CSS, Material UI, TanStack Query, Zustand

Mobile

: Flutter, BLoC, Firebase (Auth, Messaging, Crashlytics)

Backend

: Node.js, Express, FastAPI, Flask, Flask RestX, REST APIs, Zod

Database Systems

: PostgreSQL, MongoDB, Redis

Cloud & DevOps

: Docker, Kubernetes, Google Cloud, AWS, Brilliant Cloud, GitHub Actions, Jenkins

Testing

: Vitest, React Testing Library, Jest, Supertest, PGlite

Integrations

: QuickBooks (Online & Desktop), Stream Chat, GrowthBook feature flags, Sentry

Developer Tools

: Git, pnpm + Turborepo, Visual Studio Code, Cursor AI, GitHub Copilot, Postman, Z Shell

Expertise Summary

Testimonials

• “Mushfikunnabi brings not only his professional theatrical skill but also his special ability to empathize with competing interests, egos, ages, backgrounds, and competencies to any organization he joins.”

• “A quick learning person always ready to learn new things. I wish him all the best.”

• “I am really enjoying working with Nijhum at Intercloud Limited. Whenever he can, he is willing to assist others. I give him a thumbs-up!”

• “Nijhum is dedicated to his work. Professionally, he is continuously seeking out opportunities to grow and try new approaches.”

• “Nijhum, one my close friend, is a kind hearted and cheerfull person. May he be succeed in every way.”

• “I am confident that Nijhum would be a valuable member of any tech industry.”

• “While collaborating with Nijhum on several projects I got to observe his dedications and skills in the software development field. He is always willing to assist his fellow team members, serving as a source of inspiration for me.”

Get In Touch

I'm always open to discussing new opportunities, interesting projects, or just having a chat about technology. Feel free to reach out if you'd like to connect!