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I am a solution-oriented web developer with over seven years of experience building interactive, high-performance applications using React and Next.js. I have a background in business software strategy and have run my own event organization company. I thrive in dynamic, collaborative environments and am eager to contribute to innovative projects where I can build impactful, user-focused products, while combining strong technical skills with leadership and effective communication.…I am a solution-oriented web developer with over seven years of experience building interactive, high-performance applications using React and Next.js. I have a background in business software strategy and have run my own event organization company. I thrive in dynamic, collaborative environments and am eager to contribute to innovative projects where I can build impactful, user-focused products, while combining strong technical skills with leadership and effective communication.

Mehmet Sengun

Web Developer, Front-End Developer, Back-End Developer, +2

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I am a solution-oriented web developer with over seven years of experience building interactive, high-performance applications using React and Next.js. I have a background in business software strategy and have run my own event organization company. I thrive in dynamic, collaborative environments and am eager to contribute to innovative projects where I can build impactful, user-focused products, while combining strong technical skills with leadership and effective communication.…I am a solution-oriented web developer with over seven years of experience building interactive, high-performance applications using React and Next.js. I have a background in business software strategy and have run my own event organization company. I thrive in dynamic, collaborative environments and am eager to contribute to innovative projects where I can build impactful, user-focused products, while combining strong technical skills with leadership and effective communication.

Available to hire

I am a solution-oriented web developer with over seven years of experience building interactive, high-performance applications using React and Next.js. I have a background in business software strategy and have run my own event organization company.

I thrive in dynamic, collaborative environments and am eager to contribute to innovative projects where I can build impactful, user-focused products, while combining strong technical skills with leadership and effective communication.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Sr. React Developer at Neyasis

May 1, 2024 - October 21, 2025

Led frontend development of a smart city management system for ISBAK (IBB subsidiary) and the Istanbul Metropolitan Municipality using React, TypeScript, and Redux. Mentored team members, conducted code reviews, and ensured timely task delivery using Jira and MS Project. Implemented frontend performance optimizations and integrated third-party APIs and socket connections for real-time data, enhancing system functionality.

Sr. Software Engineer at Bizigo

May 1, 2024 - Present

Developing Bizigo Masraf, a B2B expense management application focused on streamlining expense tracking and reporting. Worked with JavaScript, React, Next.js, Redux, TypeScript, CSS, AntD, Axios, Figma, Slack, Jira, and Bitbucket. Implemented user-friendly, responsive interfaces for a seamless user experience, optimized performance across devices, collaborated with backend teams to integrate APIs, and ensured scalable, maintainable code through modular architecture. Led thorough testing and debugging to deliver a reliable product and incorporated modern design trends to meet business needs.

Sr. React Developer at Neyasis

June 1, 2023 - May 1, 2024

Led frontend architecture for a smart city management system (ISBAK) using React, TypeScript, and Redux, serving ISBAK for the General Directorate of Highways and Istanbul Municipality. Mentored teammates, managed tasks, and conducted code reviews; implemented frontend performance optimizations and integrated real-time data via third-party APIs and sockets.

Developer at Freelance

June 1, 2023 - October 21, 2025

Delivered multiple web applications: Blog-CMS with Next.js, Hygraph, GraphQL, TailwindCSS; AI-Powered Image Generation App with React, Node.js, Python, Firebase, Paddle, Stable Diffusion; Chatbot with React Native, OpenAI, Firebase, Node.js; E-commerce platforms with Next.js, Hygraph, Firebase, Stripe, TailwindCSS; E-commerce site with WordPress and MySQL; Stock Management and POS with .NET, C#, MySQL; Risk Analysis App with Node.js, React, SurveyJS, Python; and personal/company websites.

Developer at Freelance

January 1, 2019 - June 1, 2023

Delivered diverse web solutions for clients: Blog-CMS with Next.js, Hygraph, GraphQL, TailwindCSS; AI-powered image generation app; chatbot; e-commerce apps with Next.js, Hygraph, Firebase, Stripe; WordPress-based e-commerce; stock management/POS; risk analysis app; and personal/company websites.

Intern&Junior Developer at 42

January 1, 2019 - October 21, 2025

Developed the company website with HTML, CSS, and JavaScript; deployed to hosting and performed updates.

Intern & Junior Developer at 42, Istanbul

June 1, 2018 - January 1, 2019

Intern/Junior Developer building and maintaining the company website using HTML, CSS, and JavaScript; deployed to hosting and performed ongoing updates.