Senior Frontend Engineer (React)

O projekcie: #5193 Company Overview Our client is a leading, fully regulated US-based digital asset trading platform. They provide secure, low-latency access to cryptocurrency markets, acting as a bridge between traditional finance and the Web3 ecosystem. About This Role The Senior Software Engineer, Web is part of the Engineering team and reports to our Manager, Engineering. As a Senior Software Engineer, Web, you will be responsible for designing and building scalable, high-performance web applications using Next.js and modern front-end technologies. You will partner with Product, Design, Backend, and DevOps teams to deliver performant, accessible, and secure user experiences while contributing to front-end architecture and engineering best practices. Wymagania: - Bachelor’s or Master’s degree in Computer Science or related field.- ~8 years of professional software engineering experience, or ~6 with an advanced degree.- Strong communication and collaboration skills, motivation, problem solving mind set.- Strong proficiency in Next.js, React, TypeScript, JavaScript, HTML5, and CSS3.- Strong experience with GraphQL and REST API.- Experience with performance optimization tools (Lighthouse, WebPageTest, Chrome DevTools).- Solid understanding of SSR/SSG, CDN strategies, caching, and responsive design principles.- Familiarity with front-end security best practices.- Experience with Git, CI/CD pipelines, and modern deployment workflows.- Exposure to cloud platforms such as AWS or GCP.- Strong collaboration skills working with Product, Design, and Backend teams.- Experience mentoring junior engineers and contributing to team development.- Bonus: Experience with analytics instrumentation or blockchain-integrated front-ends (e.g.,ethers.js, wallet integrations). Codzienne zadania: - Design and implement scalable front-end features using Next.js, React, and TypeScript. - Own end-to-end development of web features, including testing, deployment, and maintenance. - Build modular and reusable UI components to support scalable development. - Optimize web performance through SSR/SSG, lazy loading, and responsive design techniques. - Monitor and improve performance metrics such as page load time, TTI, and Core Web Vitals. - Collaborate cross-functionally with Product, Design, Backend, and DevOps teams to define requirements and deliver features. - Contribute to front-end architecture decisions and engineering best practices. - Participate in code reviews and mentor junior engineers to improve code quality and team standards. - Partner with DevOps to support CI/CD pipelines and reliable deployment processes. - Ensure high standards in code quality, accessibility, security, and automated testing (unit, integration, E2E).