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Hi, I’m Mostary Jahan, a frontend developer specializing in the MERN stack. I design and build scalable APIs, secure web apps, and optimized database systems to deliver fast, reliable software. I’ve consistently achieved up to 30% faster API response times and boosted overall performance by applying modern tools, frameworks, and best development practices. I enjoy collaborating with teams, solving complex problems, and turning user needs into polished, production-ready features. I’m always learning, sharing knowledge, and looking for opportunities to contribute to impactful projects.…Hi, I’m Mostary Jahan, a frontend developer specializing in the MERN stack. I design and build scalable APIs, secure web apps, and optimized database systems to deliver fast, reliable software. I’ve consistently achieved up to 30% faster API response times and boosted overall performance by applying modern tools, frameworks, and best development practices. I enjoy collaborating with teams, solving complex problems, and turning user needs into polished, production-ready features. I’m always learning, sharing knowledge, and looking for opportunities to contribute to impactful projects.

Mostary Jahan

Front-End Developer, Back-End Developer, Full Stack Developer, +2

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Hi, I’m Mostary Jahan, a frontend developer specializing in the MERN stack. I design and build scalable APIs, secure web apps, and optimized database systems to deliver fast, reliable software. I’ve consistently achieved up to 30% faster API response times and boosted overall performance by applying modern tools, frameworks, and best development practices. I enjoy collaborating with teams, solving complex problems, and turning user needs into polished, production-ready features. I’m always learning, sharing knowledge, and looking for opportunities to contribute to impactful projects.…Hi, I’m Mostary Jahan, a frontend developer specializing in the MERN stack. I design and build scalable APIs, secure web apps, and optimized database systems to deliver fast, reliable software. I’ve consistently achieved up to 30% faster API response times and boosted overall performance by applying modern tools, frameworks, and best development practices. I enjoy collaborating with teams, solving complex problems, and turning user needs into polished, production-ready features. I’m always learning, sharing knowledge, and looking for opportunities to contribute to impactful projects.

Available to hire

Hi, I’m Mostary Jahan, a frontend developer specializing in the MERN stack. I design and build scalable APIs, secure web apps, and optimized database systems to deliver fast, reliable software. I’ve consistently achieved up to 30% faster API response times and boosted overall performance by applying modern tools, frameworks, and best development practices.

I enjoy collaborating with teams, solving complex problems, and turning user needs into polished, production-ready features. I’m always learning, sharing knowledge, and looking for opportunities to contribute to impactful projects.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Advanced

Work Experience

Backend Developer at Bantain Tech Solutions

August 1, 2025 - Present

Built and maintained scalable backend services handling high-volume API requests. Implemented secure authentication and role-based access control to strengthen data protection. Optimized MongoDB queries, reducing response times by 30% and boosting performance.

Intern - Full Stack Developer at Bantain Tech Solutions

July 1, 2025 - October 8, 2025

Developed scalable applications with React.js, Node.js, Express.js, and MongoDB. Built RESTful APIs integrated with frontend components, delivering smooth user experiences. Collaborated with team members to deliver production-ready projects within 7 months.