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Senior Frontend Developer for Trendyol's Learning Management Systems: I set the technical direction, led the re-platforming of legacy domains into a single Next.js monorepo, and own the frontend end to end — for sellers, restaurants and leaders across the marketplace.

• Own the frontend of five product domains — Seller Information Center (INT), Marketplace Seller Knowledge Center (MP), Restaurant Community Platform (TYGO), Leadership Development Portal (HR) and the LMS home page — as the team’s senior lead: architectural calls, code review and unblocking, while staying hands-on.
• Built the learning-player experience from scratch for seller training: high-performance player pages with fast startup and smooth playback, and course listing pages implemented pixel-perfect to the business unit’s Figma designs.
• Drove the re-platforming from legacy systems to a Turborepo monorepo on Next.js, TypeScript, RTK Query, TailwindCSS and i18n — technical design through deployment and optimisation, delivered in step with product and design.
• Raised the engineering bar with Husky quality gates and commit linting, PoC-driven decisions, knowledge-sharing sessions and mentorship; every domain shipped responsive and cross-browser, on time.

Built the next generation of Türkiye's leading streaming platform — a brand-new web player, live TV and ad-supported tiers — through BluTV's acquisition by Warner Bros. Discovery.

• Shipped a brand-new Web Player experience on TheoPlayer and led Player, AVOD, EPG and Live Streaming (planBy) features end to end.
• Revamped the payment flow with a new A/B-testable structure, landing a pixel-perfect checkout aligned with the corporate identity.
• Drove refactoring sprints: removed duplicate hooks, standardised classnames, and ran PoC and speed-optimisation reports for the slider plugin.
• Handled web requests from Legal and Marketing; documented every change in Confluence and tracked delivery in JIRA.

End-to-end frontend for Türkiye's biggest broadcast network: NTV and its vertical portals, Star TV, puhutv, Kral Müzik and the React-based NTV Radyo.

• Built and maintained ntv.com.tr plus the N-Life, NTV Para and SporSkor portals with HTML5, Sass/Less, jQuery, Angular and BEM.
• Developed ntvradyo.com.tr on React Hooks, Redux, Styled Components and Next.js.
• Added AdBlocker detection and OTP login/registration to puhutv.com; shipped the NTV back-office CMS on Angular.js.
• Streamlined build and deployment pipelines with Gulp, Grunt and Webpack inside an Agile/Scrum team.

Modernised the frontend of municipal data-management software used by city governments across Türkiye.

• Transformed legacy jQuery plugins into ES6+ components, cutting page load time by 20%.
• Optimised the municipal data layer with AJAX, JSON and RESTful APIs for faster real-time interaction.
• Built drag-and-drop CMS tooling that measurably raised user satisfaction.

Responsive UI for high-volume SMS and e-mail campaign platforms handling millions of messages.

• Raised user satisfaction 25% by shipping filtering, grouping and personalised interfaces driven by customer feedback.
• Reduced page load times 20% through Webpack optimisation.
• Built fast, reliable campaign tooling over RESTful APIs with React and Redux.

Web interfaces for IoT smart-city platforms (ASAS, ASAT, AKSU) serving metropolitan water and municipal authorities including İBB and İSKİ.

• Built responsive React.js interfaces for IoT dashboards used across devices.
• Implemented RESTful APIs for large XML/JSON exchange, cutting data processing times 25%.
• Established Redux state management and BEM-based reusable component libraries.

Agency work across dozens of brand sites — MVC applications, interactive pages and the agency's corporate e-mail identity.

• Developed applications on the MVC pattern and interactive pages with JavaScript, jQuery and Bootstrap.
• Designed the responsive e-mail template used as the company's corporate identity.
• Ran UI test reviews and fixed DOM-level issues.

Where it started: dynamic micro-site builds on ASP.NET while finishing a Computer Engineering degree.

• Dynamic site design with micro-site architecture (ASP.NET, HTML, CSS).
• HTML/JS implementation of submitted designs.