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I am a seasoned Full-stack Developer and Technical Leader with over 10 years of experience navigating the full software development lifecycle. From hands-on coding to executive-level strategy, I have successfully led numerous complex projects, designing scalable architectures and managing development with modern technologies. With deep expertise in JavaScript, TypeScript, React, Vue.js, Angular, and Node.js, I also specialize in cutting-edge domains including Web3, DeFi, AI chatbots, and browser extensions. My career is driven by a passion for creating high-performance user-centric applications that deliver seamless experiences.…I am a seasoned Full-stack Developer and Technical Leader with over 10 years of experience navigating the full software development lifecycle. From hands-on coding to executive-level strategy, I have successfully led numerous complex projects, designing scalable architectures and managing development with modern technologies. With deep expertise in JavaScript, TypeScript, React, Vue.js, Angular, and Node.js, I also specialize in cutting-edge domains including Web3, DeFi, AI chatbots, and browser extensions. My career is driven by a passion for creating high-performance user-centric applications that deliver seamless experiences.

Chang Chen

Full Stack Developer, AI Developer, Back-End Developer, +5

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I am a seasoned Full-stack Developer and Technical Leader with over 10 years of experience navigating the full software development lifecycle. From hands-on coding to executive-level strategy, I have successfully led numerous complex projects, designing scalable architectures and managing development with modern technologies. With deep expertise in JavaScript, TypeScript, React, Vue.js, Angular, and Node.js, I also specialize in cutting-edge domains including Web3, DeFi, AI chatbots, and browser extensions. My career is driven by a passion for creating high-performance user-centric applications that deliver seamless experiences.…I am a seasoned Full-stack Developer and Technical Leader with over 10 years of experience navigating the full software development lifecycle. From hands-on coding to executive-level strategy, I have successfully led numerous complex projects, designing scalable architectures and managing development with modern technologies. With deep expertise in JavaScript, TypeScript, React, Vue.js, Angular, and Node.js, I also specialize in cutting-edge domains including Web3, DeFi, AI chatbots, and browser extensions. My career is driven by a passion for creating high-performance user-centric applications that deliver seamless experiences.

Available to hire

I am a seasoned Full-stack Developer and Technical Leader with over 10 years of experience navigating the full software development lifecycle. From hands-on coding to executive-level strategy, I have successfully led numerous complex projects, designing scalable architectures and managing development with modern technologies.

With deep expertise in JavaScript, TypeScript, React, Vue.js, Angular, and Node.js, I also specialize in cutting-edge domains including Web3, DeFi, AI chatbots, and browser extensions. My career is driven by a passion for creating high-performance user-centric applications that deliver seamless experiences.

Skills

Experience Level

Expert

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Language

English

Fluent

Romansh

Fluent

Work Experience

Senior Full-stack Developer at Lido Finance

October 1, 2024 - Present

Led development of Ethereum staking web interfaces focusing on responsiveness, accessibility, and real-time data. Architected scalable React components with TypeScript using atomic design principles. Implemented complex Web3 browser integrations for wallet connections and smart contract interactions. Designed GraphQL schema to optimize data fetching and improved frontend performance with code splitting and lazy loading. Collaborated with design and product teams for pixel-perfect UI and maintained CI/CD pipelines along with automated testing practices. Coordinated closely with backend and DevOps teams for aligned API design and error handling.

Senior Full-stack Engineer / Tech Lead at Pontem Network

April 30, 2024 - August 7, 2025

Managed frontend development using Vue3, React, and Next.js and integrated USBHID for hardware wallets. Led architecture and development of Web3 products on Aptos blockchain including DEX, wallet, and AI solutions. Designed backend architecture for AI applications using LangchainJS and vector databases. Oversaw technical hiring, partner negotiations, and internal tooling improvements.

Senior Frontend Developer at SoTrusty

June 1, 2022 - August 7, 2025

Led frontend development of an eCommerce PWA using Angular2+. Built real-time onboarding flow previews and implemented mobile-first design principles. Upgraded Angular codebase from version 6 to 12 and introduced unit testing methodologies.

Frontend Developer at Wing

May 31, 2022 - August 7, 2025

Developed client-facing applications and onboarding flows with React and Next.js. Built an eCommerce platform with server-side rendering, SPA syncing, and SEO optimization. Designed admin panel UI/UX and tools to enhance performance.

Team Manager at Leviossa

April 30, 2021 - August 7, 2025

Scaled and managed JavaScript development teams and project workflows. Implemented development and mentoring frameworks as well as Agile practices. Drove company growth through team expansion and technical leadership.

Full Stack (JS) Tech Lead at Leviossa

January 31, 2020 - August 7, 2025

Mentored developers, conducted technical interviews, selected tech stacks, and improved delivery quality.

Web Software Developer at Company Group 'DUNICE'

September 30, 2019 - August 7, 2025

Full-stack development across multiple domains including booking services with calendar and time-zone logic, eCommerce with Stripe integration, design community with React optimizations, fitness mobile app development using Ionic, and real estate service apps using Angular2+. Utilized various technologies such as AngularJS, Node.js, MongoDB, Redis, AWS, and Stripe.

Web Developer (Freelancer)

October 1, 2016 - August 7, 2025

Delivered full-stack JavaScript web solutions for international clients, focusing on UX improvements and performance tuning.