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Hi, I’m Mert Onalan. I’m a frontend developer based in Leipzig, Germany, with 4+ years of experience building scalable, responsive web applications using React.js, TypeScript, and Next.js for global financial institutions and e-learning platforms. I have a strong foundation in modern JavaScript, Redux state management, Agile development, and cross-functional collaboration. I enjoy delivering high-performance UI components, optimizing rendering, and contributing to design systems, API integrations, and testing practices. I work with remote teams across the UK, EU, and Turkey and am open to opportunities within Germany. I’ve implemented UI components and features in React + TypeScript, integrated REST and GraphQL APIs, and helped improve accessibility and cross-browser compatibility. I’ve collaborated closely with product managers and UX designers to turn requirements into maintainable UI, and I’ve contributed to internal design systems and coding standards. I routinely review code, promote best practices, and optimize component reusability to reduce development time for new features.…Hi, I’m Mert Onalan. I’m a frontend developer based in Leipzig, Germany, with 4+ years of experience building scalable, responsive web applications using React.js, TypeScript, and Next.js for global financial institutions and e-learning platforms. I have a strong foundation in modern JavaScript, Redux state management, Agile development, and cross-functional collaboration. I enjoy delivering high-performance UI components, optimizing rendering, and contributing to design systems, API integrations, and testing practices. I work with remote teams across the UK, EU, and Turkey and am open to opportunities within Germany. I’ve implemented UI components and features in React + TypeScript, integrated REST and GraphQL APIs, and helped improve accessibility and cross-browser compatibility. I’ve collaborated closely with product managers and UX designers to turn requirements into maintainable UI, and I’ve contributed to internal design systems and coding standards. I routinely review code, promote best practices, and optimize component reusability to reduce development time for new features.

Mert Onalan

Front-End Developer, Web Developer, UI Designer, +2

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Hi, I’m Mert Onalan. I’m a frontend developer based in Leipzig, Germany, with 4+ years of experience building scalable, responsive web applications using React.js, TypeScript, and Next.js for global financial institutions and e-learning platforms. I have a strong foundation in modern JavaScript, Redux state management, Agile development, and cross-functional collaboration. I enjoy delivering high-performance UI components, optimizing rendering, and contributing to design systems, API integrations, and testing practices. I work with remote teams across the UK, EU, and Turkey and am open to opportunities within Germany. I’ve implemented UI components and features in React + TypeScript, integrated REST and GraphQL APIs, and helped improve accessibility and cross-browser compatibility. I’ve collaborated closely with product managers and UX designers to turn requirements into maintainable UI, and I’ve contributed to internal design systems and coding standards. I routinely review code, promote best practices, and optimize component reusability to reduce development time for new features.…Hi, I’m Mert Onalan. I’m a frontend developer based in Leipzig, Germany, with 4+ years of experience building scalable, responsive web applications using React.js, TypeScript, and Next.js for global financial institutions and e-learning platforms. I have a strong foundation in modern JavaScript, Redux state management, Agile development, and cross-functional collaboration. I enjoy delivering high-performance UI components, optimizing rendering, and contributing to design systems, API integrations, and testing practices. I work with remote teams across the UK, EU, and Turkey and am open to opportunities within Germany. I’ve implemented UI components and features in React + TypeScript, integrated REST and GraphQL APIs, and helped improve accessibility and cross-browser compatibility. I’ve collaborated closely with product managers and UX designers to turn requirements into maintainable UI, and I’ve contributed to internal design systems and coding standards. I routinely review code, promote best practices, and optimize component reusability to reduce development time for new features.

Available to hire

Hi, I’m Mert Onalan. I’m a frontend developer based in Leipzig, Germany, with 4+ years of experience building scalable, responsive web applications using React.js, TypeScript, and Next.js for global financial institutions and e-learning platforms. I have a strong foundation in modern JavaScript, Redux state management, Agile development, and cross-functional collaboration. I enjoy delivering high-performance UI components, optimizing rendering, and contributing to design systems, API integrations, and testing practices. I work with remote teams across the UK, EU, and Turkey and am open to opportunities within Germany.

I’ve implemented UI components and features in React + TypeScript, integrated REST and GraphQL APIs, and helped improve accessibility and cross-browser compatibility. I’ve collaborated closely with product managers and UX designers to turn requirements into maintainable UI, and I’ve contributed to internal design systems and coding standards. I routinely review code, promote best practices, and optimize component reusability to reduce development time for new features.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Turkish

Fluent

English

Fluent

German

Beginner

Work Experience

Front End Developer at Enocta

August 1, 2022 - August 1, 2022

Built and optimized React.js components for an e-learning platform serving thousands of users. Integrated REST APIs and implemented state management with Redux, improving data handling and reducing API call redundancy. Enhanced accessibility and cross-browser compatibility in line with WCAG standards. Collaborated with product managers and UX designers to translate requirements into maintainable UI solutions. Implemented responsive layouts and optimized rendering performance, cutting load times on key pages by 20%. Contributed to internal design system and improved component reuse to reduce development time for new features.

Front End Developer at Jotform

October 1, 2021 - October 1, 2021

Contributed to development of form-building features using React.js and Redux in an international team. Implemented features in React + JavaScript, improving user engagement and accessibility.

Front End Developer at Jotform

October 2, 2021 - October 2, 2021

Built and optimized React.js components using TypeScript for Jotform Apps; improved user engagement and modular UI. Implemented the 'Jotform Apps' product embed page, enabling seamless integration of apps across multiple platforms.

Front End Developer at Enocta

August 2, 2022 - August 2, 2022

Built and optimized React.js components for e-learning platforms serving thousands of users. Integrated REST APIs and implemented Redux for state management, improving data handling and reducing API call redundancy. Enhanced accessibility and cross-browser compatibility per WCAG standards. Collaborated with product managers and UX designers to translate requirements into maintainable UI solutions. Implemented responsive layouts and optimized rendering performance, cutting load times on key pages by 20%.

Front End Developer at Thomas Murray

August 2, 2022 - November 4, 2025

Currently building scalable, responsive React.js and TypeScript UI for global users; leveraged Redux for state management and REST API integration; focused on accessibility, responsive design, and performance optimizations to accelerate load times.

Frontend Developer at Enocta

August 2, 2022 - August 2, 2022

Built and optimized React.js + TypeScript web applications used by global financial institutions; integrated REST APIs; managed state with Redux; improved accessibility and cross-browser compatibility; collaborated with product managers and UX designers to translate requirements into maintainable UI; contributed to internal design system and improved component reuse; reviewed code and contributed to best-practice standards; enhanced code quality and maintainability.

Frontend Developer – Intern at Jotform

October 2, 2021 - October 2, 2021

Developed form-building features in React + TypeScript; implemented the Jotform Apps embed page for seamless cross-platform integration; collaborated with UX designers to translate requirements into intuitive UI; contributed to improving user engagement and reducing friction.