Available to hire
I’m Alexandre Pereira, a passionate Front-end Developer based in Guimarães, Portugal, with over seven years of experience shaping the visual and interactive parts of web and mobile applications. I thrive on translating complex requirements into clean, responsive interfaces and delight users with intuitive UX.
I’m experienced in collaborating across multicultural teams, mentoring colleagues, and helping define feature roadmaps. I enjoy learning new client-specific tools and methods, and I love turning ideas into polished products that look great and perform reliably on all devices.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Beginner
Beginner
Language
Portuguese
Fluent
English
Advanced
Work Experience
Senior Front-End Developer at Check24
June 1, 2024 - PresentDrive front-end initiatives using Vue.js, TypeScript, SCSS, Jest and Playwright, contributing to both web and mobile platforms.
Senior Front-End Developer at Bosch Security Systems
June 2, 2024 - October 2, 2025Designed and implemented an internal tool for seamless interaction with a real physical device via Web USB in Chrome; integrated with Azure AD for secure access; delivered a robust experience that simplifies workflows and reduces support time.
Front-End Developer at Mercedes-Benz.io
March 2, 2023 - October 2, 2025Worked on front-end development in an international environment; gained experience with Vue.js, TypeScript, SCSS, and REST APIs; learned to work with Jest and other test systems.
Front-End Developer at Prozis
January 2, 2022 - October 2, 2025Learned to work with Vue.js, TypeScript, SCSS, decorators, REST API, and other front-end tools; expanded JS knowledge and testing skills.
Full Stack Developer at NetGocio
October 2, 2018 - October 2, 2025Organized daily tasks to improve productivity; gained hands-on experience with React.js, JavaScript, HTML/CSS; built tools to resolve internal issues and streamline workflows.
Senior Front-End Developer at Check24
June 1, 2024 - PresentI help create and improve the visual part of the company’s software – the part users actually see and interact with, whether on a website or a mobile app. I ensure everything looks good, works smoothly, and is easy to use. I help plan future features, guide the team on how we build things, and set rules so everyone works in the same efficient way. I also work on the mobile version of our product to ensure it runs well on phones and tablets.
Front-End Developer at Mercedes-Benz.io
March 1, 2023 - October 3, 2025Front-end development for Mercedes-Benz.io projects, focusing on building intuitive user interfaces, component design, and performance optimization.
Front-End Developer at Prozis
January 1, 2022 - October 3, 2025Developed front-end features for Prozis Porto project, including event pages, registration, pricing, spot pages, and home page. Also contributed to building and maintaining the dashboard to help the organization manage events, costs, spots, pricing, subscriptions, promotions, results, and payments.
Front-End Developer at Prozis
September 1, 2019 - October 3, 2025Created front-end components and features for Prozis Porto, including event-related pages such as event page, registration, pricing, spots, home page, and search functionalities.
Full Stack Developer at Unknown
October 1, 2018 - October 3, 2025Work directly with designers, frontend staff, and project management to assess requirements for functional elements of projects. Accountable for implementing the best solution or technology for the issue.
Full Stack Developer at Prozis
October 1, 2018 - October 3, 2025Developed and maintained full-stack applications across multiple projects, collaborating with designers and backend engineers to deliver performant, user-friendly interfaces. Implemented responsive front-ends with Vue.js/React and ensured clean code with modular architecture.
Front-end Developer at Prozis
September 1, 2019 - October 3, 2025Implemented UI features for e-commerce platforms, optimized load times, and integrated APIs. Contributed to design discussions, ensured accessibility, and maintained code quality.
Front-end Developer at Prozis
January 1, 2022 - October 3, 2025Led front-end development across Porto projects, collaborating with cross-functional teams to deliver high-impact user interfaces and improve performance.
Front-end Developer at Mercedes-Benz.io
March 1, 2023 - October 3, 2025Contributed to front-end development for Mercedes-Benz.io applications, implementing UI features using Vue.js and React; collaborated with design and backend teams to deliver compelling user experiences.
Senior Front-End Developer at Bosch Security Systems, Inc.
March 1, 2023 - PresentLed front-end development for security software, applying modern web technologies (Vue3, React, Node.js) to build robust, scalable interfaces; partnered with cross-functional teams to drive quality and performance.
Senior Front-End Developer at Check24
June 1, 2024 - PresentResponsible for creating and refining the visual part of the company’s software, ensuring a consistent, attractive UI across web and mobile apps; collaborated on feature planning and code standards to keep teams aligned.
Education
Licentiate degree in Informatics Engineering at IPP - ESTG
January 11, 2030 - January 1, 2017Licenciatura degree in Informatics Engineering at IPP - ESTG
January 1, 2017 - October 3, 2025Vue.js course at Amsterdam
January 1, 2023 - December 31, 2023Qualifications
Licenciatura
January 11, 2030 - October 2, 2025Vue.js training
January 1, 2023 - December 31, 2023Web Security & Bug Bounty: Learn Penetration Testing
January 1, 2022 - December 31, 2022PHP 8 Learning Guide
January 1, 2022 - December 31, 2022Industry Experience
Software & Internet, Media & Entertainment, Professional Services
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Beginner
Beginner
Hire a Front-End Developer
We have the best front-end developer experts on Twine. Hire a front-end developer in Guimaraes today.