Hasan Mobarak
@hasanmobarak
Senior Frontend Developer specializing in React, TypeScript, and performance optimization.
BangladeshWhat I'm looking for
I am a Senior Frontend Developer with 7+ years building scalable web applications using React, TypeScript, and modern JavaScript. I focus on performance, design systems, and delivering consistent, accessible UIs.
At 4X Software (Deriv) I redesigned deriv.com, built a comprehensive design system, and architected regional builds to improve SEO and load times. I significantly reduced UI bundle size through Webpack optimizations and code splitting.
Previously I developed responsive templates for ThemeForest, Shopify applications, and custom websites for SMBs, collaborating closely with designers and backend teams to translate UI/UX into production-ready code.
I bring complementary backend knowledge (Node.js, Express, GraphQL) and strong tooling experience (Webpack, Vite, Docker, CI/CD), and I seek roles where I can drive frontend architecture, performance, and cross-functional collaboration.
Experience
Work history, roles, and key accomplishments
Senior Frontend Developer
4X Software (Deriv)
Feb 2023 - Oct 2025 (2 years 8 months)
Redesigned deriv.com frontend using React, TypeScript, and Tailwind CSS, improving UX and performance; built a design system and separate ROW/EU builds that improved SEO and load times.
Frontend Developer
HasTech
Sep 2018 - Dec 2022 (4 years 3 months)
Built responsive HTML and React templates for ThemeForest and developed Shopify applications, collaborating with design and backend teams to deliver production-ready UI/UX implementations.
Web Developer
Freelance
Jan 2017 - Sep 2018 (1 year 8 months)
Developed custom websites for SMBs using HTML, CSS, JavaScript and modern frameworks, translating client requirements into technical solutions and handling end-to-end delivery.
Education
Degrees, certifications, and relevant coursework
Noakhali Govt. College
Master of Science, Mathematics
2015 - 2018
Grade: GPA: 3.22
Completed a Master of Science in Mathematics with a GPA of 3.22 in December 2018.
Noakhali Govt. College
Bachelor of Science, Mathematics
Grade: GPA: 3.24
Completed a Bachelor of Science in Mathematics with a GPA of 3.24 in December 2015.
Availability
Location
BangladeshAuthorized to work in
Job categories
Skills
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