Senior Frontend Developer

Permanent employee, Full-time · Porto

45,000 - 68,000 € per year

Job Summary

As a Senior Front-end Developer at Rovo Assembly you will be responsible for the development of intuitive, high-performance user interfaces that power our platform. You will work closely with product, design, and engineering peers to deliver outstanding user experiences that are fast, accessible, secure, and responsive. This is an exciting opportunity to own core parts of our web architecture and help shape the front-end culture within our growing tech team.

Why join Assembly?
Assembly is a business unit of the Rovo Group that combines both physical and digital product, and was created to revolutionize how custom merchandise is made and delivered. We blend technology and supply chain mastery to help brands create personalized apparel and accessories — fast, reliably, and at scale.

Key Responsabilities

Front-end Development & Architecture

Develop and maintain scalable, responsive, and accessible web applications using TypeScript, React, and Next.js
Define and evolve front-end architecture to support long-term scalability and maintainability
Implement clean, reusable, and well-documented code following modern best practices
Utilize development tools and workflows such as nvm, npm/Yarn, Webpack, and Tailwind CSS
Design and implement custom solutions on Shopify, tailored to specific e-commerce business needs

User Experience & Design Implementation

Collaborate with designers to transform UX/UI designs into pixel-perfect, high-performance interfaces
Ensure adherence to WCAG accessibility standards, mobile responsiveness, and visual consistency
Maintain a strong focus on performance optimization and cross-browser compatibility

Security & Code Quality

Implement front-end security measures addressing CORS, CSP, CSRF, and XSS vulnerabilities
Conduct thorough code reviews and uphold high standards for quality, readability, and testing
Actively identify and address bugs, bottlenecks, and inefficiencies in the codebase

Collaboration & Team Development

Work closely with product managers, backend developers, and stakeholders to deliver end-to-end solutions
Mentor junior developers and support the professional growth of the team
Advocate for a strong front-end culture across the tech organization by sharing knowledge and fostering innovation

Preferred Qualifications (Must-have/Nice-to-have)

Must-have

6+ years of experience building production-grade web applications
Expertise in React, TypeScript, HTML, CSS, and modern front-end frameworks
Strong understanding of responsive design, accessibility standards (WCAG), and browser compatibility
Experience with front-end security principles and performance optimization
Proficient with tools like Tailwind CSS, Webpack, and version managers (nvm)
Proficient with implementation of Shopify solutions
Strong communication skills and a collaborative working style
Ability to work independently in a fast-paced, cross-functional team

Nice to have

Experience with Headless CMS integrations
Background in UI/UX design or strong visual design sensibility
Familiarity with CMS-driven or e-commerce platforms
Experience working in start-up or scale-up environments

Benefits & Working Conditions

Health insurance coverage.
Flexible work schedules that promote work-life balance.
Generous allocation of 26 vacation days per year.
Collaborative and supportive work environment.
Opportunity for professional growth and development.
Modern and well-equipped office space in a convenient location.

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About us

As one of the leading agencies in Portugal, our reputation for excellence is a testament to our philosophy of pushing the boundaries in textile sourcing and production.

Over the years, we have brought our expertise and industry insight to 150+ apparel, fashion, and luxury clients, working exclusively with factories that share our ethos of transparency, quality, and environmental responsibility.

We believe that exceptional products require not only a deep understanding of the industry, but also an unwavering dedication to constant improvement and innovation. That's why we approach every project by leveraging our extensive network of suppliers to explore and adopt new trends in manufacturing, technology, and sustainability.

We are committed to minimising our environmental impact, supporting ethical practices, and promoting positive social change to create a more inspiring future for all.

Apply for this job

Thank you for your interest in ROVO. Please fill out the following short form. Should you have difficulties with the upload of your data, please send an email to r.soares@ronzinovonoswald.com