The Senior Front-End Developer role at SiteGround involves developing and maintaining high-quality, reusable, and scalable code using SASS & CSS, HTML, and JavaScript. You will use React JS and Redux to build robust front-end systems, collaborate with the team to design responsive user interfaces aligned with UI/UX principles, and integrate front-end systems with back-end services via RESTful APIs and AJAX. You will manage bundling and transpiling using Webpack and use GIT for version control in a collaborative environment. Responsibilities include developing Single Page Applications (SPA) optimized for mobile and web, and applying functional programming concepts in development practices. Candidates should have at least 5 years of software development experience, including 3 years with React JS and Redux, proficiency with GIT, practical experience with RESTful APIs and AJAX, and a strong understanding of UI/UX principles and functional programming. Additional advantages include experience with Node.js, Slate.js, CI/CD tools like Jenkins/GitHub Actions, Agile environments, and RTK Query. SiteGround offers working on in-house built products using the latest technologies, premium health insurance, employee assistance, training for skill development, sponsorship for worldwide conferences, free company restaurant, gym access with professional instructors, Multisport or CoolFit card, extra days off for long service and volunteering, and reduced working hours every Friday. This is a full-time, hybrid position based in Bulgaria with a competitive salary and achievement bonus.