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Huseyin Kaplan

Istanbul, Turkey · Available for remote

Shipping fast
digital products with engineering precision.

Full-stack developer with 4+ years of production experience across React, Next.js, Node.js, Django, TypeScript, and React Native. I design, build, and optimize products that need to scale without losing clarity.

4+ years in production 1B+ requests served React · Next.js · Django · RN
2,537GitHub commits
28Public repositories
1B+Requests served
-40%LCP improvement
Expertise

Full-stack delivery across product, frontend, backend, and mobile.

  • Full-stack architecture for SaaS and internal platforms
  • Performance optimization and Lighthouse-driven delivery
  • UI engineering with accessible, responsive systems
  • Technical leadership across features, reviews, and releases
React Node TypeScript React Native
Performance growth

Year-over-year performance score uplift

Representative frontend performance work across product launches and dashboard rebuilds. Higher score reflects faster loading and more stable interaction quality.

100806040
2022202320242025
92Current perf score
<200msAPI response target
Testimonials

Trusted by teams that needed execution, not just prototypes.

Real project feedback from product and engineering collaborators across client and Upwork engagements.

I had the pleasure of working with Huseyin on an Upwork project, where he excelled in front-end development and also provided support on the backend. His attention to detail, problem-solving skills, and timely delivery made a big impact. I would happily work with him again.

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Caner S.

Huseyin's expertise in React and Next.js significantly contributed to creating intuitive and efficient data visualization tools and interactive dashboards. His performance enhancements were key in reducing loading times. His professionalism, technical knowledge, and creative problem-solving are outstanding.

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Melih Basaran