Hyeonah Cho

I am a Front-End Developer with experience designing and building high-performance web applications using JavaScript, HTML, CSS, and modern frameworks like React. I excel at user-centred design, translating business requirements into intuitive user interfaces. Recently, I developed a QA automation software that improved testing efficiency by 75%, streamlining workflows and enhancing system reliability.

I am eager to apply these skills to create seamless digital experiences that align with business goals.

Hardware Integration Engineer

ChargeLab: EV Charging SaaS Solutions

Etobicoke, Canada

Sep 2023 – Present

• Conducted QA testing to ensure seamless EV charger integration with the software platform, enhancing user experience and optimizing system compatibility
• Developed QA automation software using Python and JavaScript ES6, improving testing efficiency by 75% and enhancing charger integration speed and reliability
• Reduced charging session failures by 30% by proposing a timeout indicator feature after analyzing field data, diagnosing complex issues, and providing data-driven solutions
• Enhanced user experience by implementing precise CSS adjustments to ensure full responsiveness across devices, delivering a seamless and accessible website design

Front End Developer

Go Together Travel Agency: Vacation Packages Provider

Seoul, Korea

Sep 2022 – Feb 2023

• Implemented authentication features using JWT for secure login, user registration, and account management, strengthening user data protection
• Designed and developed search and booking functionality with Next.js and RESTful APIs, improving data retrieval speed and accuracy for a seamless user experience
• Developed a Product Detail Page with Redux, leveraging SSR to optimize initial load times and manage dynamic state for travel package details
• Translated UI/UX designs into responsive and reusable components using HTML, CSS, MUI, and JavaScript, ensuring consistent branding and accessibility

Web Developer

Advertience: Digital Marketing Agency

Toronto, Canada

Feb 2019 – Jan 2021

• Developed responsive websites by transforming prototype designs into high-quality code, using HTML5, CSS3, JavaScript ES6, Bootstrap, and WordPress
• Ensured consistent functionality across Chrome, Firefox, and Safari for all client websites by performing cross-browser testing, debugging, and responsive adjustments
• Boosted customer purchases and search engine visibility for a pharmaceutical client by creating an SEO-optimized landing page that drove user engagement
• Increased app downloads and achieved key marketing goals for a ride-hailing service client by managing the full development cycle and delivering scalable web solutions

Diploma in Media Communications

Humber College

Etobicoke, Canada

Sep 2017 – Apr 2019