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I am a Front-end Developer with 6+ years of experience building responsive, user-friendly websites and content-driven platforms. I’m proficient in HTML5, CSS3, JavaScript, Vue.js, React.js, and TypeScript, with a strong focus on intuitive UI/UX, accessibility, and performance. I’ve implemented search, filters, forms, API integrations, and scalable frontend architectures, delivering polished results on tight deadlines. I work well independently and in Agile teams, contributing to code reviews, architecture discussions, and cross-functional collaboration to translate business needs into elegant, maintainable frontend solutions. My goal is to create fast, accessible, and visually appealing interfaces that empower users and delight clients.…I am a Front-end Developer with 6+ years of experience building responsive, user-friendly websites and content-driven platforms. I’m proficient in HTML5, CSS3, JavaScript, Vue.js, React.js, and TypeScript, with a strong focus on intuitive UI/UX, accessibility, and performance. I’ve implemented search, filters, forms, API integrations, and scalable frontend architectures, delivering polished results on tight deadlines. I work well independently and in Agile teams, contributing to code reviews, architecture discussions, and cross-functional collaboration to translate business needs into elegant, maintainable frontend solutions. My goal is to create fast, accessible, and visually appealing interfaces that empower users and delight clients.

Julia Trefas

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

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I am a Front-end Developer with 6+ years of experience building responsive, user-friendly websites and content-driven platforms. I’m proficient in HTML5, CSS3, JavaScript, Vue.js, React.js, and TypeScript, with a strong focus on intuitive UI/UX, accessibility, and performance. I’ve implemented search, filters, forms, API integrations, and scalable frontend architectures, delivering polished results on tight deadlines. I work well independently and in Agile teams, contributing to code reviews, architecture discussions, and cross-functional collaboration to translate business needs into elegant, maintainable frontend solutions. My goal is to create fast, accessible, and visually appealing interfaces that empower users and delight clients.…I am a Front-end Developer with 6+ years of experience building responsive, user-friendly websites and content-driven platforms. I’m proficient in HTML5, CSS3, JavaScript, Vue.js, React.js, and TypeScript, with a strong focus on intuitive UI/UX, accessibility, and performance. I’ve implemented search, filters, forms, API integrations, and scalable frontend architectures, delivering polished results on tight deadlines. I work well independently and in Agile teams, contributing to code reviews, architecture discussions, and cross-functional collaboration to translate business needs into elegant, maintainable frontend solutions. My goal is to create fast, accessible, and visually appealing interfaces that empower users and delight clients.

Available to hire

I am a Front-end Developer with 6+ years of experience building responsive, user-friendly websites and content-driven platforms. I’m proficient in HTML5, CSS3, JavaScript, Vue.js, React.js, and TypeScript, with a strong focus on intuitive UI/UX, accessibility, and performance. I’ve implemented search, filters, forms, API integrations, and scalable frontend architectures, delivering polished results on tight deadlines.

I work well independently and in Agile teams, contributing to code reviews, architecture discussions, and cross-functional collaboration to translate business needs into elegant, maintainable frontend solutions. My goal is to create fast, accessible, and visually appealing interfaces that empower users and delight clients.

Skills

Experience Level

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

Danish

Advanced

English

Fluent

Hungarian

Beginner

Work Experience

Frontend Developer - AI Training Expert at Outlier

July 1, 2025 - July 1, 2025

Remote; advanced AI accuracy and impact while creating meaningful, accessible job opportunities for individuals. Creating and evaluating technical tasks to support AI model training in frontend development and web design, ensuring quality and relevance. Reviewing AI-generated user interfaces with a focus on UI/UX quality, accessibility, and alignment. Delivering expert feedback to enhance what makes a user interface intuitive, functional, and beautiful.

Frontend Developer at Appvestor

January 1, 2025 - January 1, 2025

Collaborated in Agile/Scrum teams with designers and backend developers to deliver scalable, maintainable features. Proactively contributed to integration and continuous refinement of key features using Vue 3 with Composition API and TypeScript, applying design patterns and best practices to ensure a robust frontend. Diagnosed and resolved frontend issues, contributed to platform stability and smoother user experience. Led frontend initiatives to improve performance and accessibility, resulting in faster load times and a more inclusive UX. Contributed to code reviews, technical discussions, and architectural decisions to support high code quality and team knowledge sharing.

Frontend Developer at Corporate Funding Partner

January 1, 2022 - January 1, 2022

Implemented new features based on business requirements and designs, with a strong focus on UX. Resolved various types of bugs: content, functionality, visual, accessibility, internationalization, and performance. Proposed UI/UX improvements and contributed to frontend architecture decisions to enhance stability and usability.

Frontend Developer at Testa Viva

January 1, 2021 - January 1, 2021

Developed UI components using React.js and implemented visual enhancements to improve user experience and interface aesthetics. Implemented a new sign-up/sign-in flow to streamline authentication and resolved content, functional, and visual bugs to ensure smooth performance.

Frontend Developer at Rejoo se

October 1, 2020 - October 1, 2020

Proposed and implemented visual enhancements, redesigned the UI layer to improve aesthetics and user experience. Refined the architecture of the existing codebase to improve maintainability and scalability.

Frontend Developer at SlideHub

January 1, 2019 - January 1, 2019

Implemented numerous visual enhancements on content pages, improving conversion and engagement. Rolled out a complete redesign of onboarding experiences and supplier-facing interfaces to streamline interactions.