Mert Yilmaz
Mert Yilmaz

Full Stack Developer

Open to offers · Member since 5 Oct 2026
Location
Ankara, Türkiye
Desired salary
Unspecified
Work preference
Remote Only / Full Time, Freelance
Experience level
Mid

About

Professional summary

I am a full stack developer building web and mobile products with React, Next.js, TypeScript, and Expo. I have experience delivering customer-facing applications, management platforms, e-commerce experiences, and backend services.

I work across the full product lifecycle, from responsive frontend interfaces and reusable components to REST APIs, databases, authentication, payment flows, and deployment. My backend experience includes Node.js, NestJS, .NET, PostgreSQL, MySQL, and ORM-based data layers.

I have worked on e-commerce and after-sales service products, including ERP integrations, inventory and order workflows, service-request tracking, repair records, photo uploads, and OTP-confirmed delivery processes. I also build technical SEO improvements and monitor product visibility through Google Search Console.

I have hands-on experience integrating payment providers such as Stripe and QNBPay, including checkout, subscriptions, saved payment methods, and 3D Secure flows. I have also integrated communication and cloud services including Telnyx and AWS.

I enjoy building maintainable systems using modern React tooling, state management, monorepos, and shared packages. I have migrated applications to improve performance, supported multilingual experiences, and mentored developers during onboarding.

I am experienced with remote freelance collaboration and self-hosted deployments. I have set up VPS environments and migrated managed cloud workloads to cost-effective self-hosted infrastructure.

Skills

28 capabilities

Tech stack & tools

Working toolkit

Application Hosting

Data Stores

Languages & Frameworks

Libraries

Experience

Career history

Fullstack Developer Harmoni Yazılım

I build Next.js B2C storefronts and React/Vite B2B management applications integrated with Uyumsoft ERP. I also develop after-sales service web interfaces and an Android application using React Native, Expo, and TypeScript.

My work includes service-request tracking, repair records, photo uploads, OTP-confirmed delivery workflows, inventory, order, and customer processes. I integrated QNBPay payment collection with 3D Secure frontend flows and implemented technical SEO improvements monitored through Google Search Console.

Fullstack Developer Qrispy

I built a Turborepo monorepo with shared packages supporting production web and mobile applications. I developed Next.js dashboards for administrators and customers and rebuilt mobile app experiences with Expo and React Native.

I implemented Stripe checkout and subscription capabilities and built backend services using NestJS, TypeORM, and MySQL. I also migrated AWS-managed services to VPS deployments, including server setup and self-hosting, and integrated AWS translation, speech-to-text, and Telnyx services.

Fullstack Developer Hopgogo

I built a travel-planning platform that enabled customizable multi-destination itineraries across transportation, accommodation, and activities.

I implemented reservation handling, booking workflows, and Stripe checkout. I also developed authentication, traveler profiles, saved payment methods, purchase history, and dashboard interfaces using Next.js and TypeScript.

Frontend Developer PATH Product & Software House

I worked on a Boyner e-commerce assignment, rebuilding product listing and product detail pages for the platform. I used React, Next.js, TypeScript, Redux Toolkit, and Tailwind CSS to create maintainable frontend experiences.

I also developed merchant portal capabilities for coupons, notifications, and order management. I gathered requirements directly from merchants and built reusable components to support consistent development.

Frontend Developer SubmitApp

I migrated the frontend from Create React App to Vite to improve build performance and moved landing pages to Next.js to improve technical SEO. I developed dynamic PDF generation functionality with React-PDF.

I redesigned frontend experiences, implemented multilingual support with i18next, and used React Router, Zustand, TanStack Query, and Tailwind CSS. I also mentored and onboarded a new developer.

Frontend Developer Fdnsoft

I developed fintech and banking interfaces, including work for PARAM Corporate Banking. I also rebuilt applications for the Turkish Tennis Federation.

I localized applications from Turkish to English while maintaining a consistent user experience. My work used React, Redux, React Bootstrap, and Sass.

Frontend Developer Softtech

I built responsive Vue and TypeScript interfaces for contractor and workspace management systems. I focused on usable frontend workflows and responsive application layouts.

I developed more than 15 enterprise forms and workflow-management features using Vue, Vuetify, TypeScript, and Sass.

Education

Learning history

Bilkent University

Bachelor of Science, Computer Technology and Information Systems

Bachelor of Science in Computer Technology and Information Systems.

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