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.

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.
Technical Expertise
Here are the technologies and tools I work with to build modern web applications.
Work Experience
Gain Solutions · Full-time · On-site
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.
Gain Solutions · Full-time · On-site
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.
Gain Solutions · Full-time · On-site
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.
Hovata Technologies · Full-time · Dhaka, Bangladesh · On-site
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.
Across The Globe (ATG) · Full-time · Bangalore Urban, Karnataka, India · Remote
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.
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.
Get In Touch
Feel free to reach out for any queries or discussions.