Fullstack Engineer (Java/ Kotlin, Go & React)

Job DescriptionWe are seeking a highly skilled Fullstack Developer with a strong backend foundation inJava and Spring, along with modern frontend development experience(preferably inReact, but not mandatory). You will be joining an international, crossfunctional product team that is building a scalable, multi-tenant, multilingual travel platform serving high traffic and high availability requirements.This is a long-term, feature-rich platform that integrates with complex internal systems and third-party providers. You will have the opportunity to work with modern technologies, contribute to system architecture decisions, and take part in end-to-end product delivery—from concept to deployment.Your Responsibilities Develop and maintain backend services usingJava, Spring Boot,Kotlinand/orGo Build responsive, accessible UIs usingReact Design and implement RESTful APIs; integrate frontend and backend components seamlessly Work on high-performance, multi-tenant, cloud-based systems Collaborate closely with other engineers, product managers, and UX designers Participate in Agile ceremonies: sprint planning, stand-ups, code reviews, retrospectives Contribute to technical design, architectural discussions, and continuous improvements Ensure quality through automated testing (unit/integration/E2E), code quality checks, and observability Work in a DevOps-enabled environment: CI/CD, containers, cloud infrastructure, and monitoring toolsOur Requirements 5+ years of backend experience with Java and Spring Frontend experience with Reactor similar JavaScript frameworks (Vue.js, Angular,etc.) Strong understanding of REST APIs, microservices architecture, and cloud-based deployments Proficient with relational databases such as PostgreSQL or MySQL Experience with CI/CD pipelines, Git workflows, and containerized environments (Docker, Kubernetes) Familiar with Agile methodologies (Scrum or Kanban) Comfortable in cross-functional, collaborative teams and product-driven developmentBenefits Internal Mobility Program – enjoy many opportunities for career growth, job rotations, diversity of projects & technologies Referral Program – enjoy cooperation with your colleagues and get a bonus! 5/10 Years NATEK Club – we offer long-term cooperation and celebrate each fifth-year cooperation anniversary with gifts NATEK CSR Events & team buildings – enjoy our values: accountability, partnership and expertise and #workITwithus Education – benefit from our know-how, learning courses and certificates and IT events – be part of the community of leaders of the industry and take part as a speaker or a visitor Multisport Technical and Personal training Language coursesAdditionally only for employment contract:CafeteriaFinancial Contribution for MealsLife insuranceBonuses for Personal EventsDay off for volunteering