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

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.

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Experience Level

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.

Education

BSc (Hons) Geography & Environmental Science at National University of Bangladesh
January 1, 2019 - January 1, 2023

Qualifications

Complete Web Development Course (Programming Hero)
January 1, 2024 - October 8, 2025

Industry Experience

Software & Internet, Media & Entertainment