Hi, I'm Kamruz Zaman

Senior Full-Stack Software Engineer

I build web applications end to end with React, Next.js, and Node.js. I combine frontend leadership with backend engineering and a thoughtful AI-assisted workflow: plan, build, review, and refine.

Kamruz Zaman – Senior Full-Stack Software Engineer
About Me

Who I Am

I'm a full-stack engineer who works comfortably on both ends of the stack — architecting APIs and data models on the backend, then building the interfaces that sit on top of them. Over the last 4+ years I've shipped everything from MERN e-commerce platforms to enterprise CRM and HRM systems.

  • End-to-End Ownership

    I take a feature from database schema to deployed UI, so nothing gets lost in the handoff.

  • Built for Scale

    My work spans single-business websites to multi-team enterprise applications, so I know what actually breaks under load.

  • Clear Communication

    I flag risks early and ship on the timeline I commit to — no chasing me for status updates.

My Journey

I’m a senior full-stack software engineer building web applications end to end. My AI-assisted development process starts with understanding the problem and planning the work, then moves through implementation, review, and refinement. I stay responsible for the engineering decisions throughout.

Over the past 4+ years I’ve worked across the stack: as a MERN developer building e-commerce and school-management platforms, then as a frontend engineer shaping CRM and ERP products, and now a senior software engineer at Gain Solutions. That range is the point — I’m equally comfortable optimizing a Postgres query or building a component system used by a dozen engineers.

I’m currently open to full-time engineering roles — and select freelance projects — where I can own a product end-to-end, not just the frontend.

Skills

Technical Expertise

Here are the technologies and tools I work with to build modern web applications.

Frontend
JavaScript (ES6+)
TypeScript
React.js
Next.js
HTML5
CSS3
Tailwind CSS
Bootstrap
Redux
Responsive Design
SEO-friendly Development
Backend
Node.js
Express.js
REST API
GraphQL
MongoDB
PostgreSQL
Database Design
Query Optimization
Firebase
Cloud & DevOps
AWS (EC2, S3, SES)
Vercel
Netlify
Docker
CI/CD Pipelines (GitHub Actions, GitLab CI/CD)
Tools
Git
GitHub
GitLab
Jira
Trello
Figma
Jest
Others
Agile/Scrum Methodologies
Problem-Solving
Debugging
Cross-functional Team Collaboration

Work Experience

Sr. Software Engineer

Gain Solutions · Full-time · On-site

Jul 2026 - Present

Build web applications end to end, connecting React and Next.js interfaces with Node.js and GraphQL APIs and MongoDB and PostgreSQL data. Focus on reliable business workflows, maintainable systems, and the tradeoffs behind engineering decisions.

Lead Frontend Engineer

Gain Solutions · Full-time · On-site

Dec 2025 - Jul 2026

Led frontend development for enterprise CRM, support, and HRM applications. Guided UI architecture, reusable component systems, and frontend practices with a focus on usability, performance, and maintainability.

Javascript Developer

Gain Solutions · Full-time · On-site

Jan 2024 - Nov 2025

Developed business applications using JavaScript, React, and Next.js, contributing to the interfaces and workflows behind CRM and HRM products. Worked across reusable UI components and application integration.

Software Engineer Frontend

Hovata Technologies · Full-time · Dhaka, Bangladesh · On-site

Oct 2022 - Dec 2023

Developed and optimized CRM and ERP interfaces with responsive design and a focus on user experience. Collaborated with backend teams to connect business workflows with reliable application functionality.

MERN stack developer

Across The Globe (ATG) · Full-time · Bangalore Urban, Karnataka, India · Remote

Dec 2021 - Sep 2022

Built web applications with the MERN stack, including e-commerce, school-management, and content-management platforms. Worked across frontend interfaces, backend APIs, and data models to deliver complete web experiences.

Projects

My Works

Check out some of the projects I've worked on recently.

Engineering case studies

Product context, technical considerations, and lessons from building complete applications.

Gain.io: connecting sales and customer support
A CRM and helpdesk project viewed through customer context, sales workflows, and full-stack engineering.
React
Next.js
GraphQL
Payrun: making HR workflows understandable
An HR management project explored through employee records, leave workflows, and reliable application state.
Next.js
GraphQL
Node.js
Building an AI-assisted full-stack portfolio
A personal portfolio with a publishing platform, verified reader accounts, and a review-driven AI development workflow.
Next.js
React
MongoDB
Contact

Get In Touch

Feel free to reach out for any queries or discussions.

Contact Information
Feel free to reach out through any of these channels

Email

engr.kamruz@gmail.com

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