Workforce Management

Real-Time Rota & Shift Compliance Engine

Client: TTL

A real-time compliance validation engine for shift assignments, integrating UK Working Time Regulations (WTR) and Visa/Work Permit Rules. The system automates compliance checks, reducing manual administrative work by 100% and saving approximately 15-20 administrative hours per week per care home. Built using Chain of Responsibility Design Pattern with stateless, reusable compliance rule objects that execute in sub-millisecond timeframes. Features a multi-severity compliance framework (BLOCK/WARN/PASS) with 12+ rule implementations, enabling proactive compliance management and reducing post-assignment corrections by ~85%. The system includes cursor-based pagination for aggregated reporting, reducing database load by 95% for large datasets, and implements RFC 5545/iCalendar shift rostering for cross-platform scheduling interoperability.

Experience

Senior Software Engineer · BrainStation 23 PLC.

March 2022 - Present · Dhaka, Bangladesh

  • Collaborated with the University of Stavanger on a Norwegian Research Council–funded (Grant No. 308909) research focused on B2B/B2G healthcare data exchange policy and governance.
  • Led development of a Web3 hotel-booking dApp with NFT reservations, coordinating frontend/backend integration, mentoring the BA on stablecoin payments, and enabling ~25% broader reach via seamless booking/resale across major marketplaces via ERC-721 standard.
  • Built a multi-tenant e-commerce PoC on ICP integrating Shopify with Web3 shops, boosting efficiency by ~35%, scaling to hundreds of vendors, and co-developing a €250K+ fundraising prototype with a European partner.
  • Conducted domain/requirement analysis with ICONIX, designed UML diagrams, and prepared SoW, WBS, and ToR to support sales in accurate client budget estimation.

https://brainstation-23.com/?1

Instructor | Teaching & Mentorship · Ostad | EdTech Platform

December 2025 - Present · Dhaka, Bangladesh

  • As an instructor, Md. Ariful Islam conducting 5 batches with 695+ students, brings clarity, structure, and problem-solving depth to his teaching. He has solved countless real-world engineering challenges involving application architecture, API design, data modeling, and frontend-backend integration. His teaching approach focuses on how MERN is used in real software teams, helping students write clean code, think like engineers, and build job-ready projects with confidence.

https://ostad.app/instructor/255870

Junior Software Engineer · Cloud Height Technology LTD. (CHTL)

January 2022 - April 2022 · Chittagong, Bangladesh

  • Backend Engineer

https://cloud-height.com/

Associate Software Engineer · Robust Research and Development LTD. (RRAD)

December 2020 - December 2021 · Dhaka, Bangladesh

  • Developed the Bangladesh Customs Info mobile application, which has an installation range of 5K-10K based on Play Store reports, to streamline import/export compliance queries by product HS Code.
  • Engineered the Customs Bond Commissionerate Import Entitlement System, reducing manual paperwork and improving processing time from 5 days to 2 hours per application.

https://rrad.com.bd/

IT Intern · Export Import Bank of Bangladesh PLC. (EXIM)

October 2020 - December 2020 · Dhaka, Bangladesh

  • Assisted in data center operations ensuring uptime for 10+ enterprise banking services while collaborating with the corporate banking division to gain hands-on financial operations experience.

https://www.eximbankbd.com/

Skills

Languages

Rust, Solidity, TypeScript (JS), Python

Frameworks

NestJS, Django, Hardhat, Fabric

Software Engineering & Architecture

Object Oriented Design (OOD), UML, Design Patterns, SOLID Principles, Exchange Patterns, Microservice, Message Broker, GraphQL, Node.js, Event Driven Architecture (EDA), Financial Data Exchange (FDX)

Web3 Ecosystems

DAO Governance, dApp (Decentralized Application), DeFi, DEX, NFT Marketplace Microstructure, Stablecoin, HardHat, The Graph, Proxy Smart Contract, Zero-knowledge proof (ZKP), Alchemy, Internet Computer Protocol (ICP), Hyperledger Fabric

DevOps, Monitoring & Observability

Docker, Docker Compose, GitHub Actions, Loki, OpenTelemetry,Grafana, pm2, Kong Proxy API Gateway, Kong Lua Plugin