Open to Work — Remote Worldwide

MD SamiulAlam Sumel

Port Operations Technologist·Product Engineer·React, Next.js, Node.js & MongoDB

Port operations professional with 12+ years of hands-on experience in cargo billing, vessel/vehicle tracking, and port authority workflows, who independently designs and ships the software that automates those workflows. 3 self-built tools — billing, vehicle tracking, payroll automation — are in daily production use at Mongla Port Authority. Seeking remote port/logistics-tech, Product Engineer, or full-stack roles — worldwide.

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Years Work Experience
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Production Tools
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Featured Projects
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Bootcamp Modules Done

01 / Who I Am

About Me

I am a Port Operations Technologist — a port-operations insider who also personally designs and ships the software that runs port operations. Not a generalist developer, not a pure ops person: the rare combination of domain judgment and engineering execution.

I bring 12+ years of professional work experience as a Senior Outdoor Assistant at Mongla Port Authority — Bangladesh's second-largest international seaport — in wharfrent billing, cargo dwell time management, terminal operations, and C&F agent coordination.

I used that operational background to identify real workplace problems and built 3 self-initiated web applications — plain JavaScript/HTML/CSS at the time — that are still used daily by C&F agents and port staff. That is real, in-production software, not a class exercise. Alongside that operational work, I completed an intensive, project-based full-stack curriculum — HTML, CSS, JavaScript (ES6+), React, React Router, Node.js/Express, MongoDB, and Next.js — covering 81 modules across 14 milestones, including authentication (JWT, Firebase, NextAuth), payment integration (Stripe), and deployment, using AI-assisted development throughout the build.

I am a recent graduate of the bootcamp, not a senior engineer — I am upfront about that. What I bring is 12+ years of professional discipline from a demanding operational job, a completed full-stack curriculum, and real shipped software.

My goal is a remote port/logistics-tech, Product Engineer, full-stack, or web developer role — anywhere in the world, with no time zone constraints.

🇧🇩 Bengali — Native 🇬🇧 English — Professional
📄 Download CV 📄 Freelance CV
12+ Years Port Operations Background
Mongla Port Authority — wharfrent billing, terminal operations, C&F agent coordination. A track record of discipline and reliability, not just technical skill
Operational Problem → Deployed Product
3 self-initiated web apps, each starting from an observed workflow inefficiency and ending in daily production use by C&F agents and port staff — not just class exercises
Full-Stack Bootcamp Graduate
81-module, 14-milestone curriculum: HTML/CSS, JavaScript, React, Node.js/Express, MongoDB, Next.js, auth & deployment
Remote — Open to Work Worldwide
Seeking a port/logistics-tech, full-stack, or web developer role. No time zone constraints — available anywhere in the world.
Location
Mongla, Bangladesh
Phone
+880 1312 312 512
Portfolio

02 / Technical Stack

Core Competencies

Domain & Port Operations
Port Billing & Tariff SystemsWharfrent / VAT / Levy CalculationCargo & Vessel TrackingC&F Agent WorkflowsCustoms / Regulatory Compliance Context
Frontend & JavaScript
HTML5 (Semantic)CSS3Responsive DesignTailwind CSSDaisyUIJavaScript (ES6+)DOM & EventsFetch & Promises / Async-AwaitArray/Object MethodsES Modules
React & Next.js
React (Hooks, Context)React RouterReact Hook FormTanStack QueryAxios (incl. Interceptors)Next.js App RouterNextAuth
Backend, Data & Deployment
Node.js & ExpressREST APIs (CRUD)MongoDB (Atlas)Aggregation PipelineJWT AuthFirebase Auth & Admin SDKNext.js API RoutesStripe PaymentsPagination & SearchGit & GitHub (Branching, PRs)Vercel / Firebase / Netlify / CloudflareAI-Assisted Development
Linux & Automation (self-directed)
Bash ScriptingRHEL 9 AdministrationsystemdCron & TimersMonitoring & Alerting ScriptsRHCSA/RHCE Track — In Progress

03 / Freelance & Contract Work

Services I Deliver

Send the workflow and the problem — I identify what's actually going wrong, design the solution, and build and deploy it using modern full-stack tools and AI-assisted development. The categories below have a proven, verifiable track record; other problem types are evaluated the same way.

Full-Stack Web Apps

React/Next.js on the frontend, Node.js/Express + MongoDB on the backend — REST APIs, JWT/Firebase authentication, and Stripe payments when the job needs them.

✓ Proven with 3 live production apps

Billing & Tracking Dashboards

Custom billing calculators, tracking dashboards, and operational tools — the same kind of tool I built to solve real problems at my own workplace.

✓ Built for real daily use, not a demo

Port & Logistics Workflow Digitisation

Turning paper-based or Excel-based port and logistics workflows — wharfrent billing, overtime payroll, cargo/vehicle tracking — into deployed, team-wide web tools, backed by first-hand operational knowledge of how those workflows actually run.

✓ Proven with 3 tools converted from manual/Excel processes

Remote & Freelance Readiness
No time zone constraints — any schedule, worldwide
Self-managed: scopes, builds, and deploys independently, manually verified before every release
Async-friendly English, Git/GitHub-based collaboration (branching, PRs)
Every past project is publicly verifiable before you hire

04 / Career History

Work Experience

Senior Outdoor Assistant — Port Operations & IT Systems
Nov 2017 – Present
Mongla Port Authority
Bangladesh's second-largest international seaport — vehicle imports, bulk cargo, and general cargo
Core Port Operations
  • Manage end-to-end wharfrent billing cycle — slab-wise charge computation, VAT and levy calculation, inside/outside cargo split, and final billing issuance for active C&F agents — identified the recurring manual-calculation bottleneck in this cycle and independently built and deployed portbill, now used daily by the billing desk to verify charges in advance
  • Provide advance billing estimates to C&F agents, enabling accurate payment planning, reducing vehicle dwell time, and eliminating unnecessary counter visits
  • Track cargo and vehicle positions simultaneously across warehouse, shed, and yard terminal locations in real time — the single-person, Excel-only version of this record was the direct trigger for building carview, now the Traffic Department's shared, version-controlled tracking system
  • Maintain daily and monthly revenue reports, cumulative income statements, and vehicle balance records for port authority management
  • Generate car import/delivery and jetty statistics reports used for operational planning and port authority audits
  • Operate port automation billing system — manage full wharfrent computation workflow from vessel arrival through final billing issuance
  • Coordinate C&F agent documentation, billing queries, and advance payment planning across the terminal
Self-Initiated Web Development & Learning
  • Independently identified critical inefficiencies in manual paper-based billing, overtime payroll calculation, and vehicle tracking workflows — designed and deployed 3 live web applications (billing, payroll automation, vehicle tracking) now used daily by C&F agents and port staff at Mongla Port
  • Built with plain JavaScript/HTML/CSS and deployed using AI-assisted development as a productivity tool, while completing a structured full-stack curriculum in parallel
  • Completed an 81-module, 14-milestone full-stack bootcamp (HTML/CSS, JavaScript, React, Node.js/Express, MongoDB, Next.js) alongside a full-time port operations career
  • Maintain an active public GitHub portfolio (github.com/samiulAsumel) demonstrating continuous technical growth
Junior Outdoor Assistant — Port & Terminal Operations
Nov 2013 – Nov 2017
Mongla Port Authority
Foundation of a 12-year uninterrupted career at Bangladesh's second-largest international seaport
  • Assisted in port inspections, vessel operations, and cargo handling under senior supervision
  • Monitored cargo dwell time and vehicle positioning across all terminal locations
  • Maintained inspection reports, cargo handling records, and operational incident logs
  • Coordinated with C&F agents for efficient cargo clearance and documentation workflows
  • Built foundational expertise in wharfrent billing, maritime logistics, and customs clearance that underpins all later self-initiated digital work

05 / Problem → Product

Featured Projects

Port Billing Calculator May 2026
Problem: Port billing system creates permanent entries — C&F agents had no way to estimate wharfrent charges before committing, causing billing disputes, excessive dwell time, and repeated counter visits.
Real-time advance wharfrent calculator: slab-based charge computation, VAT and levy calculation, inside/outside cargo split, hoisting charge auto-calculation, print-ready A4 output. Actively used by C&F agents at Mongla Port daily to verify expected charges before any final submission.
JavaScriptHTML/CSSVercelPWAPrint Output
Daily Car Balance & Location Tracking System ("carview")
Problem: Vehicle positions across warehouse, shed, and yard were recorded in one person's personal Excel file — invisible to all other staff. When that person was unavailable, the entire team had no visibility into vehicle locations, creating bottlenecks and dependency on a single individual.
Offline-first PWA tracking 8 port locations, with Cloudflare Worker + private GitHub repo sync (every save is a version-controlled commit) so all staff see current positions with no single-person dependency. Includes a Bangladesh Government Holiday Calendar loader, a Chart.js analytics dashboard (7 charts + KPIs), 13 report sections, and Excel export. Built for Mongla Port Authority's Traffic Department.
PWACloudflare WorkerChart.jsGitHub SyncExcel Export
OT Bill Management System May 2026
Problem: Overtime billing was a fully manual Excel process — multi-step hourly rate calculations, date-wise OT entry, and final bill generation done by hand every cycle. High error risk and significant time cost every period.
Staff enters an employee profile once; the system generates the complete final OT bill instantly with correct hourly rate, cumulative date-wise OT calculation, and A4 print-ready output. Eliminated manual calculation errors and reduced billing cycle time from hours to minutes.
JavaScriptEmployee DBAuto-CalcA4 PrintVercel
Client Intake Form
Problem: Collecting project requirements from a client over email or chat is unstructured — details get missed, and following up to fill gaps wastes time on both sides.
Single-file, client-side project requirement intake form — structured questions, no backend required, and a mailto-based report so the completed brief lands directly in an inbox, ready to work from.
JavaScriptHTML/CSSClient-Side Only
Port Community System (PCS) Architecture Showcase
Problem: Before a Port Community System, every party at a seaport — shipping lines, freight forwarders, customs, terminal operators — maintains separate bilateral data feeds, so a single vessel call triggers a dozen manual exchanges and slow cargo clearance.
Designed a cloud-native port-digitisation platform modeling the full vessel-call lifecycle, cargo manifest intake, and Saudi customs (ZATCA) clearance integration for a Gulf seaport — FastAPI + PostgreSQL + Kafka on EKS, provisioned with Terraform. A system-design exercise demonstrating enterprise/regulatory-scale architecture beyond the scope of the production tools above — documentation and architecture are complete; it is not a running production deployment.
FastAPIPostgreSQLKafkaEKSTerraformZATCA
World Kitchen Atlas
Problem: A global culinary reference needs fast, structured browsing by continent and country, with an admin workflow to add and edit entries without touching code or redeploying by hand.
Next.js static-export site on Cloudflare Pages, with a Cloudflare Worker proxying a private GitHub data repo so the access token never reaches the browser, admin login and CRUD over that same Worker, and a Durable-Object-backed visit counter for real-time analytics without a database.
Next.jsTypeScriptCloudflare WorkerDurable ObjectsAdmin CRUD
JARVIS Source Available — No Live Demo
Problem: Commercial AI assistants lock you into one model, one vendor, and send every query off-device.
Self-hosted personal AI assistant with smart multi-model routing across Groq, OpenRouter, Claude, and Gemini (plus local Ollama), voice input/output, file and folder ingestion, and persistent cross-session memory with Bengali/Banglish support. Runs on a personal NixOS machine — self-hosted by design, no public demo deployment.
FastAPIMulti-LLM RoutingVoiceNixOS

06 / Self-Directed Practice

Linux & Infrastructure Practice

RHCSA/RHCE Track — Bash & RHEL 9 Practice
Self-Directed
In Progress

Self-directed practice building production-style Bash automation for deployment, SSL certificate renewal, and log/security monitoring on RHEL 9 — working toward RHCSA/RHCE certification alongside the web development curriculum.

Self-driven learning, not job-critical production work — in progress, listed for transparency, not a claimed certification.

07 / Active Growth

Professional Development

Complete Web Development Course — Programming Hero
Self-Directed · Jul 2025 – Jul 2026 · Completed
Completed
Course Progress100%
  • HTML5, CSS3, responsive layout, Tailwind CSS
  • JavaScript (ES6+), DOM, async/await, REST APIs
  • React, React Router, Context API, custom hooks
  • Node.js, Express, MongoDB, JWT/Firebase auth
  • Next.js, NextAuth, Stripe, deployment (Vercel/Firebase)
  • 81 modules / 14 milestones, including a full capstone project
Currently — Deepening Full-Stack Practice
Self-Directed · Jul 2026 – Present
In Progress

A depth-first, self-directed continuation past the bootcamp — stronger TypeScript, testing (Jest/Vitest, React Testing Library), and building original portfolio projects from scratch rather than following a course guide.

TypeScript DepthTesting (Jest / RTL)Original ProjectsClean Code & Architecture

In progress — listed here for transparency, not counted as a current qualification.

08 / Background

Education

Higher Secondary Certificate
Business Studies
Khulna Public College
2009 – 2011
Secondary School Certificate
Business Studies
Mongla Bandar Secondary School
1999 – 2009

09 / Let's Connect

Get In Touch

I'm actively seeking a remote Port Operations Technologist, Logistics Systems Engineer, Product Engineer, or Full-Stack Developer role — and open to freelance and contract work — with organizations anywhere in the world. No time zone constraints; available to work and communicate on any schedule.

With 12+ years of professional port operations experience and a completed full-stack bootcamp, I bring a combination few candidates can offer — domain judgment and engineering execution, proven by 3 self-built tools in daily production use, not just studied.

Open to Work — Remote Worldwide Port Operations Technologist · Product Engineer · Full-Stack Developer
Roles I'm Open To
Port Operations Technologist
Logistics Systems Engineer
Product Engineer
Full-Stack Developer
Freelance / Contract