The international IT сompany Andersen invites a Kotlin Developer to join our dynamic and highly skilled professional team. Andersen is a pre-IPO software development company that provides a full cycle of services, following project management standards and best practices. For over 18 years, we have been helping enterprises and middle-sized firms transform their businesses by creating effective digital solutions using innovative technologies.  Immerse yourself in a global landscape as we collaborate with enterprises spanning North America, Western Europe, Israel, Australia, and the UAE. Our diverse expertise extends across FinTech, Healthcare, Retail, Telecom, Media & Entertainment, Logistics, Travel & Hospitality, eCommerce, and more.  Responsibilities: Designing, developing, and maintaining backend services and applications using Kotlin.  Implementing business logic, APIs, and integrations with external systems.  Writing clean, maintainable, and well-tested code following best practices.  Troubleshooting, debugging, and optimizing application performance.  Collaborating with frontend developers, QA engineers, and product teams to deliver new features.  Participating in code reviews and contributing to architectural decisions.  Maintaining technical documentation and supporting deployment processes.  Must-haves: Experience as a Kotlin Developer or Backend Developer for 2.5+ years.  Strong knowledge of Kotlin and JVM ecosystem.  Experience building RESTful APIs and working with frameworks such as Ktor or Spring Boot (Kotlin-based).  Familiarity with relational and/or NoSQL databases (e.g., PostgreSQL, MongoDB).  Understanding of asynchronous programming, concurrency, and reactive patterns.  Experience with Git, CI/CD pipelines, and cloud environments (AWS, GCP, or Azure).  Strong debugging and problem-solving skills.  Level of English – from Upper-Intermediate and above.  Nice-to-haves:  Experience with microservices architecture.  Knowledge of Docker, Kubernetes, or containerized environments.  Familiarity with event-driven systems (Kafka, RabbitMQ).  Understanding of test automation and unit testing frameworks (JUnit, Mockito).  - Experience working with any frontend framework (e.g., React, Angular, Vue).  Experience with Camunda or similar workflow/orchestration engines.  Reasons why this job would be interesting to you: Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc.. The opportunity to change the project and/or develop expertise in an interesting business domain. Job conditions – you can work both fully remotely and from the office or can choose a hybrid variant. Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee. The opportunity to earn up to an additional 1,000 USD per month, depending on the level of expertise, which will be included in the annual bonus, by participating in the company's activities. Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated. Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies). Certification compensation (AWS, PMP, etc). Referral program. English courses. Private health insurance and compensation for sports activities. Your personal data is protected in accordance with GDPR regulations. Learn more: https://andersenlab.com/privacy-policy/plJoin us!    https://people.andersenlab.com/