Hello
About
I’m Mustafa, a front-end developer based in Eskişehir, Türkiye, with five years of building React and Next.js applications.
At PITON Technology I lead front-end refactoring work. On two production platforms, ITS and GIS, that meant new rendering patterns and a shared component library, with measurable gains in load times, bug rates and release stability.
I studied Computer Engineering at Süleyman Demirel University, where I was on the core team of the Google Developer Student Club and led technical workshops. I freelanced for about a year before joining PITON in 2023.
I build interfaces where simplicity and usability come first. I balance screen time with… well, different screen time: books and video games.
Experience
– Present
Front-end developer · PITON Technology (opens in a new tab)
Eskişehir, Türkiye · Full-time
Front-end architecture and refactoring for two production platforms, ITS and GIS.
- Refactored the front-end architecture of two production platforms (ITS and GIS) with modern React rendering patterns and Next.js dynamic imports: page load times down by up to 70%, Time to Interactive down 40%, Core Web Vitals scores up 25%
- Standardized the front-end around clean architecture principles and a reusable component library, reducing production bugs by 80% and hotfixes by 30%
- Resolved recurring rendering bottlenecks and cross-browser inconsistencies, cutting front-end incidents by roughly 45% while keeping delivery 100% on time
- Mentored 5+ junior developers and interns, and introduced a structured code review process that raised PR acceptance rates by roughly 35%
- Worked with UX/UI and product teams on accessibility and performance, contributing to a 20% increase in user satisfaction scores
- Evaluated and introduced new front-end tools, shortening development cycles by roughly 15%
- Next.js
- TypeScript
- Tailwind CSS
- Material UI
- Chakra UI
- Zustand
- React Query
– 1 yr 2 mos
Front-end web developer · Freelance
Isparta, Türkiye
Responsive websites for 7+ independent clients, built and maintained.
- Built and maintained responsive websites for 7+ independent clients, using usability feedback to improve navigation and layout
- Worked directly with clients through multiple revision cycles, refining layout, accessibility and interactive elements
- Implemented SEO best practices across markup, performance and content structure
- Optimized code and asset delivery to reduce page load times and improve stability
- Integrated third-party APIs and services to extend functionality and automate client workflows
- React
- jQuery
- Bootstrap
- MongoDB
- Node.js
- Figma
– 2 mos
Software developer intern · HarmonyERP
Sakarya, Türkiye · Internship
Two months on an Android application, in a five-person engineering team.
- Built 2 production-ready features in Kotlin for an Android application, shipped as part of a demo release
- Implemented authentication and data-handling flows with Firebase, taking part in daily stand-ups and code reviews
- Worked with stakeholders to clarify requirements for new mobile features
- Debugged and resolved defects throughout the development cycle
- Kotlin
- Android
- Firebase
- Git
Skills
- Programming languages
- JavaScript, TypeScript, HTML, CSS
- Frameworks & libraries
- React, Next.js, Svelte, SvelteKit, Solid.js, SolidStart, Node.js
- Tools & practices
- Git, API integration, Unit testing, Agile, Clean architecture, Responsive design, Performance optimization, Debugging, UX/UI collaboration
- Spoken languages
- Turkish (native), English, German
Education
– 4 yrs 2 mos
Süleyman Demirel University
B.Sc., Computer Engineering · Isparta, Türkiye · GPA 3.28 / 4.00
- Graduated with an honor certificate
- Core team member of Google Developer Student Clubs
- Led technical workshops and coding sessions
- Took part in hackathons and coding competitions