Senior Web Developer – React / Next.Js (Remote, Startup Environment)

Company Description

everup offers instant cashback on gift card purchases from top brands, combined with the thrill of winning additional rewards through engaging, free games.

Our mission is to support consumers in maximizing their budgets amidst rising living costs, blending savings with fun.

By providing prize-linked digital branded prepayments, everup transforms shopping into an exciting and rewarding experience.

As a leader in gamified shopping within the branded prepaid and curated goods market, we aim to bring both entertainment and value to our users.We're seeking for anSenior Web Developerto join our growing team and help build and scale oure-commerce platform .

This is a hands-on technical role focused on creating high-performing, secure, and SEO-optimized web experiences using modern technologies likeReactandNext.js .

You should be highly organized, passionate about web technologies, and familiar with the unique challenges of building and maintaininghigh-traffic, transaction-heavy e-commerce applications .

What You'll Do

• Develop and maintainour web-based e-commerce platform usingReact and Next.js , ensuring optimal performance, usability, and security.
• Implementauthentication and authorization flows , with attention to role-based access control and secure session management.
• Optimize forSEO and performance , including structured data, server-side rendering (SSR), and core web vitals.
• Ensureweb accessibilityand responsiveness across devices and screen sizes.
• Collaborate with designers and backend engineers to build intuitive, scalable, and engaging user experiences.
• Work closely with the product team to roll out new features, A / B tests, and performance improvements.
• Follow secure development practices and proactively mitigate risks based on theOWASP Top 10 Application Security Risks , including threats like broken access control, injection, insecure design, and security misconfiguration.
• Use Git and follow agile practices in a remote team environment.
• ? What We're Looking For
• 5+ years of professional web development experience
• 3+ years working withReact and modern JavaScript
• Experience withNext.js ,SEO best practices , andserver-side rendering
• Strong understanding ofe-commerce workflows , including product listings, carts, checkout, payments, and user accounts
• Solid knowledge ofauthentication / authorization(JWT, OAuth, RBAC, etc.)
• Familiarity with tools likeGoogle Search Console ,Lighthouse , andWeb Vitals
• Awareness and practical knowledge of commonweb vulnerabilitiesand how to prevent them using OWASP principles
• Comfortable with Git and remote collaboration
• Self-starter with strong ownership and accountabilityWhy Join Us?
• Remote-first : Work from anywhere
• Startup environment : Fast-paced and impactful
• Tech-forward : Build modern e-commerce systems using the latest web technologies
• Growth opportunity : Help shape the future of our web platformIf you're passionate about buildingfast, secure, and user-friendly web appsin the e-commerce space, and thrive in a collaborative remote environment — we'd love to hear from you.

Apply now and let's build something great together!

Please apply providing the following information :

Your current emoluments / annual salary in euro

Your notice period

Your time-zone