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Full-Stack Developer

Syed Mahamudul Hassan

Full-Stack Developer specializing in architecting and delivering enterprise-grade applications. With 4+ years of hands-on experience across the Laravel and JavaScript ecosystems, I lead full-cycle development—from system design and database optimization to CI/CD pipelines and cloud deployment. My approach is rooted in clean code principles, performance engineering, and collaborative problem-solving.

I specialize in transforming legacy systems into clean, maintainable, production-ready platforms by eliminating performance bottlenecks, improving architecture, and scaling digital experiences for business growth.

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Featured Work

Projects & Case Studies

A selection of projects Ive built, from open-source packages to full-scale platforms.

PHP

Laravel SSLCommerz Integration Package

Developed an open-source Laravel package that simplifies SSLCommerz payment gateway integration. The package provides a clean API, supports payment processing and callback handling, and includes comprehensive documentation to help developers integrate SSLCommerz quickly and reliably.

Challenge: Developers often have to write repetitive integration code for SSLCommerz in every Laravel project. Existing solutions may lack clear documentation, consistent structure, or compatibility with modern Laravel versions, making integration time-consuming and error-prone.
Solution: Built a reusable Composer package following Laravel best practices. The package includes payment initiation, success/failure/cancel/IPN callback handling, environment-based configuration, and detailed step-by-step documentation with practical examples to simplify integration.
Outcome: Reduced the time and effort required to integrate SSLCommerz into Laravel applications, improved code reusability and maintainability, and published the package as an open-source project on GitHub and Packagist for the Laravel community.
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PHPLaravelJavaScriptMySQL

Eniner – Learning Management System (LMS)

Developed a full-featured Learning Management System (LMS) that enables educational institutions, instructors, and students to manage online learning efficiently. The platform supports course management, student enrollment, lessons, quizzes, assignments, progress tracking, and user role management.

Challenge: Many educational platforms require a centralized system to manage courses, learners, instructors, and learning progress. Building a scalable and user-friendly LMS with role-based access and efficient content management was the primary challenge.
Solution: Designed and developed Eniner using Laravel, implementing secure authentication, role-based permissions, course creation, enrollment, lesson management, quizzes, assignments, progress tracking, and an intuitive administrative dashboard.
Outcome: Delivered a scalable and maintainable LMS that streamlines online education management, improves the learning experience for students, simplifies course administration for instructors, and provides administrators with centralized control over the platform.
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LaravelPHPJavaScriptMySQL

Oraska – E-commerce Application

Developed a modern e-commerce application that enables businesses to sell products online with secure authentication, product management, shopping cart, order processing, and payment integration. The platform focuses on performance, scalability, and a seamless shopping experience.

Challenge: Building a secure and scalable e-commerce platform that efficiently manages products, inventory, orders, payments, and user accounts while providing a smooth and responsive shopping experience.
Solution: Designed and developed Oraska using Laravel with a modular architecture. Implemented user authentication, product catalog management, categories, shopping cart, wishlist, checkout, order management, payment gateway integration, and an admin dashboard for managing products, customers, and orders.
Outcome: Delivered a scalable and maintainable e-commerce platform that simplifies online selling, improves the customer shopping experience, streamlines order management, and provides administrators with complete control over products, inventory, and sales.
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Experience

Career Journey

August 2024 – Present

Software Developer (Remote)

Ensiner – Dhaka, Bangladesh

Ensiner is a modern Learning Management System (LMS) designed for students in Bangladesh, offering online courses for SSC, HSC, Engineering, Medical, and University admission preparation. The platform provides video lessons, practice exams, progress tracking, and an intuitive learning experience for students, teachers, and administrators.

Growth Focus
  • →Architected and scaled the core full-stack platform using Laravel, React, and Node.js, supporting a rapidly growing user base (specific number if you know) with zero downtime.
  • →Engineered robust RESTful APIs and optimized database queries (MySQL/PostgreSQL), reducing average API response time by 35% and improving overall user experience.
  • →Modernized the deployment pipeline by introducing Docker containerization and automated CI/CD (GitHub Actions), cutting release times by 50% and eliminating manual deployment errors.
  • →Championed code quality and maintainability by integrating AI-driven refactoring tools to enforce SOLID principles, resulting in a measurable 40% reduction in technical debt and accelerating new feature delivery by 25%.
June 2021 — Aug 2024

Software Developer

Zaman IT – Dhaka, Bangladesh

Developed a responsive corporate website for ZAMAN IT to showcase its web development, software development, digital marketing, AI automation, and security services. The platform is designed to generate leads, present service offerings, and strengthen the company's online presence.

Growth Focus
  • →Engineered a high-performance corporate platform using Laravel and JavaScript, showcasing 30+ services and generating 200+ qualified business leads within the first 6 months through optimized contact forms and CTAs.
  • →Modernized the frontend architecture by migrating from legacy jQuery to a component-based JavaScript workflow, reducing page load time by 40% and improving mobile responsiveness.
  • →Refactored and modularized the backend codebase, eliminating 60% of duplicate logic and reducing bug-fix time by 35%—enabling faster feature rollouts.
  • →Acted as a technical bridge between stakeholders and the development team, translating business requirements into technical specifications and ensuring 98% on-time delivery of client-requested features.
January 2021 — June 2021

Software Developer Intern

Zaman IT – Dhaka, Bangladesh

Improved backend reliability, tuned database interactions, and supported scaling of internal platform services.

Growth Focus
  • →Strengthened backend reliability by refactoring core API endpoints and standardizing response structures, reducing production errors by approximately 25% .
  • →Optimized database performance through strategic indexing and query restructuring, cutting average query execution time by 40% to ensure stability during peak traffic.
  • →Improved deployment workflows by collaborating with senior engineers to implement automated testing and CI/CD best practices, reducing pre-release bugs by 30% .

FAQ

Common Questions

Quick answers to the most frequently asked questions about working with me.

My time zone is UTC+6 (Bangladesh Standard Time). I am specifically available for and prefer working with US-based teams, and have aligned my work schedule to US business hours (EST/PST). I ensure a minimum of 4–5 hours of direct overlap with core US working hours for real-time collaboration, while also maintaining asynchronous communication via Slack and Email for seamless coordination across the full workday.

I thrive on business-critical applications that require both technical depth and strategic thinking—whether it's building complex dashboards, high-performance APIs, or platforms that need to scale rapidly. I enjoy projects where I can architect solutions from the ground up or modernize legacy systems to unlock new business value.

I'm a strong advocate for transparent, async-first communication. I'm proficient with tools like Slack, Notion, Jira, and GitHub, and I follow Agile/Scrum methodologies. I take full ownership of my deliverables and proactively communicate blockers, progress, and decisions—ensuring seamless collaboration regardless of time zones.

Certainly—it's one of my core specialties. I have hands-on experience refactoring monolithic PHP/Laravel applications into modular, maintainable architectures. I identify performance bottlenecks, restructure databases, and implement modern practices (like CI/CD and containerization) to reduce technical debt, improve scalability, and cut operational costs—all while ensuring zero downtime during migration.

Core Skills

Technologies I Work With

A curated set of technologies I use daily to build modern, scalable applications.

PHP
Laravel
JavaScript
Node.js
React.js
Next.js
TypeScript
MySQL
PostgreSQL
AWS
Docker
Kubernetes

Services

What I Can Help You Build

I help startups, agencies, and enterprises solve complex technical challenges and build scalable digital products.

Legacy System Modernization

Refactor outdated, monolithic applications into clean, modular, and maintainable architectures—reducing technical debt and improving system reliability.

Custom Web Application Development

Build high-performance, secure, and scalable platforms using Laravel, React, Node.js, and Next.js, tailored to your business needs.

API & Backend Architecture

Design and develop robust, RESTful APIs with clear documentation, ensuring seamless integration with frontend and third-party services.

Frontend Engineering

Develop fast, responsive, and user-friendly interfaces using React and Next.js, with a focus on performance and accessibility.

Database Design & Optimization

Architect and optimize MySQL and PostgreSQL databases for speed, scalability, and data integrity—reducing query times and improving application performance.

Cloud Deployment & DevOps

Implement CI/CD pipelines, Docker containerization, and cloud infrastructure (AWS) to ensure reliable, automated, and scalable deployments.

Process

How I Work

A transparent, collaborative, and results-driven approach to ensure every project delivers measurable value.

01

Discovery & Strategy

Deep-dive into your business goals, user needs, and technical requirements. Define clear success metrics and project milestones.

02

Architecture & Design

Design scalable, maintainable architecture following clean code principles. Select the right technology stack for your needs.

03

Development & Iteration

Develop frontend and backend systems in parallel with continuous integration. Regular demos and feedback loops ensure we're on track.

04

Deployment & Support

Automate deployment with CI/CD pipelines and containerization (Docker). Monitor performance and provide ongoing support.

Achievements

Impact Areas

Measurable outcomes delivered across performance, stability, and delivery.

Performance Optimization

Reduced API response time from 450ms to under 300ms and cut deployment time by nearly half through database optimization and CI/CD automation.

Code Quality & Stability

Refactored 15+ core modules, eliminating 2,000+ lines of duplicate code and reducing production error rate to near-zero.

Delivery Excellence

Successfully delivered 20+ client projects with 100% on-time completion and zero critical bugs in production.

Milestones

Project Delivery Highlights

Key achievements delivered across system stability, architecture, and deployment.

Legacy System Cleanup

Resolved 20+ critical performance bottlenecks, reducing system downtime from 12 hours to under 2 hours per month for 5,000+ daily active users.

Architecture Improvement

Redesigned 8 major application modules using clean architecture patterns, reducing codebase complexity by 15% and improving maintainability.

Cloud Readiness

Successfully migrated 3 production applications to AWS with zero downtime and established full observability monitoring.

Specializations

Core Focus Areas

My expertise spans across these key areas, ensuring high-quality, scalable, and business-driven solutions.

API-First Development

Design and build robust, well-documented RESTful APIs that ensure seamless integration between frontend, backend, and third-party services.

Performance Engineering

Optimize application speed and responsiveness through database tuning, caching strategies, and efficient code architecture.

Database Tuning

Design and optimize database schemas, write efficient queries, and implement indexing strategies for maximum performance and scalability.

Product-Minded Engineering

Bridge the gap between technical execution and business goals—building features that deliver real user value and drive growth.

Languages

Communication & Collaboration

I communicate effectively across cultures and time zones to ensure seamless collaboration.

English

Professional Working Proficiency

Used daily for client communication, documentation, and team collaboration in remote settings.

Bangla

Native

Native speaker, used for internal communication and local client interactions.

Testimonials

What People Appreciate

Feedback from colleagues and clients I've had the pleasure of working with.

Syed combined strong technical depth with clear communication throughout our project. He delivered a complex LMS platform on time and within budget—our team was impressed by his problem-solving skills.

Mumtahina Tabassum

Chairman · Ensiner

He took our outdated legacy system and turned it into a modern, efficient platform. His ability to identify bottlenecks and restructure the architecture saved us months of development time.

Barun Kanti Ghosh

CTO · Ensiner

Reliable, collaborative, and highly focused on performance. Syed consistently delivered clean, maintainable code and was a key contributor to our team's success.

Mohammad Kamruzzaman

CEO · Zaman IT

Certifications

Learning & Growth

Courses and certifications I have completed to stay current with modern technologies.

Udemy

Hands-On Introduction to Orchestration with Kubernetes

View Certificate →
Udemy

Hands-On Introduction to Cloud Computing with AWS

View Certificate →
Udemy

Hands-On Introduction to CI/CD with GitHub Actions

View Certificate →
Udemy

Hands-On Introduction to Containers with Docker

View Certificate →

Clients

Engagement Style

How I collaborate with clients to deliver successful projects.

Remote Collaboration

Seamlessly work with you and your team across time zones using modern communication tools like Slack, Zoom, and Notion.

Agile Sprint Delivery

Deliver value fast with 2-week sprints, regular demos, and continuous feedback loops—keeping you involved at every step.

Business-Focused Communication

Translate technical decisions into business value. I ensure you always understand the "why" behind every choice.

Roadmap

How a Project Moves Forward

A structured, transparent approach to take your project from idea to impact.

Step 1

Discovery & Requirement Mapping

Understand your business goals, user needs, and technical requirements. Define project scope, success metrics, and deliverables.

Step 2

Prototype & Architecture Decisions

Design system architecture, select the right technology stack, and create wireframes or prototypes to validate the approach.

Step 3

Build & Optimize

Develop frontend and backend systems with clean, maintainable code. Optimize performance, security, and database queries.

Step 4

Deploy & Monitor

Deploy to production with CI/CD pipelines. Monitor performance, track errors, and ensure system stability with observability tools.

Contact

Let’s build a better digital product together

Email: syedmahamudhassan@gmail.com
LinkedIn: https://www.linkedin.com/in/syedmahamudulhassan
GitHub: https://github.com/syedmahamudul