Valdrin Trena
A results-driven frontend engineer with 6+ years of experience, specializing in TypeScript, React, and performance-focused web applications. I thrive in fast-moving teams, providing mentorship, improving developer experience, and advocating for best practices.
Work Experience
Senior Frontend Engineer, PROCAM
Jul 2024 - Present
(1y, 3m)
React
TypeScript
Storybook
Playwright
Leading the frontend rewrite of an enterprise EMS system from Angular β Solid.js β React, focusing on performance, maintainability, and scalability.
Spearheading the transition from Angular to React, ensuring minimal disruptions and improved developer experience.
Implemented best practices in component architecture, leading to faster development cycles and better maintainability.
Optimized performance through React rendering strategies, reducing load times and improving UI responsiveness.
Senior Frontend Engineer, Pult GMBH
Jun 2023 - Jul 2024
(1y, 1m)
React
NextJS
TypeScript
TailwindCSS
GraphQL
Jest
Worked in a small, fast-moving team, requiring strong adaptability and self-direction. Took initiative in refining internal processes and improving collaboration despite limited formal structure.
Helped establish best practices to improve code quality, review processes, and overall team efficiency.
Introduced workflow improvements that enhanced project organization and reduced friction in daily development.
Advocated for CI/CD improvements to enhance deployment stability.
Frontend Engineer, OneFootball Labs
Jun 2022 - Jun 2023
(1y)
React
NextJS
TypeScript
TailwindCSS
PostgreSQL
Jest
react-testing-library
Part of a cross-functional team building a Web3-based football NFT marketplace, bridging sports fandom with blockchain technology. Provided key frontend support and mentorship within the team.
Provided technical support and mentorship to team members, helping accelerate feature development.
Had a strong impact on team collaboration and delivery, as reflected in positive peer feedback and interactions.
Conducted thorough code reviews for 100+ pull requests to ensure high-quality code and consistency with best practices.
Frontend Engineer, Slice
Jan 2020 - Jul 2022
(2y, 6m)
React
Redux
TypeScript
GraphQL
SCSS
Jest
Cypress
react-testing-library
Promoted to Mid-Level Frontend Developer within 6 months for showing strong ownership and quick adaptation in transitioning from IT to development.
Improved page loading speed by 33%, resulting in an increase in conversion rates for the web ordering platform and a better Lighthouse score.
Transformed an outdated, class-based React app into a modern, functional component architecture, incorporating TypeScript for enhanced performance and scalability, resulting in a decrease in bug reports and time spent debugging or developing new features.
IT Engineer, Slice
May 2017 - Jan 2020
(2y, 9m)
AWS
Meraki Systems
Bash
Lambda functions
Worked in IT for 3 years before transitioning to frontend development. Focused on improving internal processes, implementing automations, and optimizing workflows to support company-wide efficiency.
Automated IT workflows, reducing manual effort and saving X hours per week.
Implemented security improvements to enhance system reliability and uptime.
Web Developer, SITI
Jan 2016 - Dec 2016
(11m)
ASP MVC
JQuery
JavaScript
C#
Developed a web application for a local phone repair business to manage their inventory and sales.
Built a custom sales management, inventory tracking, and analytics dashboards.
Languages
English (C2)
Deutsch (C1)
Education
University for Information Science & Technology 'St. Paul the Apostle'
Bachelor of Applied Science (B.A.Sc.), Communication Networks and Security
Macedonia
|2012 - 2017
Personal Projects
E-Reader
React Native
TypeScript
TailwindCSS
A e-book reader mobile application
Murlan+
TypeScript
NextJS
TailwindCSS
NodeJS
WebSockets
A multiplayer browser card game β A twist on the popular card game President also known as Murlan in some places.
Interests and Hobbies
I believe in maintaining a balance between mental agility and physical vitality. Outside of coding, I dedicate time to staying active through running, weight lifting and cycling. Additionally, I enjoy reading epic fantasy books. These hobbies enrich my work as a developer, keeping me inspired and full of new ideas.