Senior Back End Engineer (Node.js/TypeScript)

Job Description Ciklum is looking for a Senior Back End Engineer (Node.js/TypeScript) to join our team full-time in the Slovakia. We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live. About The Role As a Senior Back End Engineer (Node.js/TypeScript), become a part of a cross-functional development team engineering experiences of tomorrow. Responsibilities Take full ownership of end-to-end development of key features in identity and access managementWork with cutting-edge AI to enhance development and security workflowsDrive technical excellence and help shape the architecture of our platformCollaborate with a small but strong team of 4 developers and a team lead, contributing your expertise and leadership to raise the technical barOptimize and scale authentication and authorization systems with OAuth, JWT, SAML, WebAuthn, and moreBuild and optimize services using NestJS (Node.js), TypeScript, and AWSTake ownership of complex challenges, working both independently and within the team Requirements A highly skilled Backend Developer with 6+ years of experience, specializing in NestJS, Node.jsExperience working in high-scale production environments - Must Analytic thinking - Independent people who can lead the development of new features - MustDeeply passionate about writing clean, efficient, and scalable code leveraging AI toolsA problem solver who loves working with AI and using it to boost productivityExperienced in designing and implementing complex distributed systemsComfortably leading technical decisions and mentoring the teamHands-on with authentication, security, and identity management (SSO etc.) - Great AdvantageExperience with Kafka, Redis, MySQL, OAuth, JWT, AWS is a strong advantage, and familiarity with MongoDB is a plusTypescript experience10% FE (React) What’s in it for you? Strong community: Work alongside top professionals in a friendly, open-door culture that values initiative and empowers its people to succeedFast-paced & agile environment: Be part of a dynamic, fast-moving organization that champions efficiency and innovationGlobal exposure: Collaborate with international, cross-functional teams and contribute to large-scale initiativesTailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certificationsFlexibility: Balance office and remote work to fit your rhythmCare: Take advantage of our extensive benefits offering, aligned with the best market standards The salary starts from 3400 Euro gross. The final salary depends on the previous experience and professional knowledge of the candidate. About Us At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress. Our Slovakia hub brings together passionate professionals working on global initiatives. Be part of a close-knit team that’s driving digital transformation and creating lasting impact. Explore, empower, engineer with Ciklum! Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.