kotlin developer for business banking

Andersen is a pre-IPO software development company providing full-cycle services and helping enterprises and mid-sized firms worldwide transform their businesses through digital solutions and innovative technologies. Its expertise spans FinTech, Healthcare, Retail, Telecom, Media & Entertainment, Logistics, Travel & Hospitality, eCommerce, and other industries.

• Develop and maintain a microservices architecture;
• Optimize database performance and queries;
• Configure monitoring, logging, and alerting;
• Handle deployment and infrastructure management;
• Conduct code reviews and mentor team members;
• Design architecture from scratch.

• 3+ Years of backend development experience;
• Strong proficiency in Kotlin and Java, including Kotlin data classes, sealed classes, extension functions, scope functions, Coroutines & Flow, Java Collections, Generics, and Stream API;
• Deep understanding of multithreading and JVM internals, including garbage collection, memory model, and performance tuning;
• Extensive hands-on experience with Spring Framework, including Spring Boot, Dependency Injection / IoC, Spring Data, Transaction Management, and Spring AOP;
• Advanced knowledge of PostgreSQL and SQL, including query optimization, EXPLAIN ANALYZE, indexing, complex queries, window functions, and CTEs;
• Proven production experience with Kafka, including producers, consumers, partitions, and offsets;
• Strong expertise in REST API design, including versioning, pagination, and error handling;
• Solid practical experience with Docker and advanced Git workflows;
• Hands-on experience with Prometheus, Grafana, and Micrometer, including structured logging, correlation IDs, and alerting best practices;
• Strong understanding of microservices architecture, including patterns, anti-patterns, high availability, fault tolerance, and scalability;
• Good knowledge of software design principles, including SOLID, GoF patterns, and DDD basics;
• Experience with unit testing, integration testing, JUnit / Kotest, MockK, and Testcontainers;
• English from Intermediate+ level and above;
• Nice to have: Liquibase or Flyway, Java 17+ features, Spring WebFlux / Reactive programming, Spring Security, distributed transactions and consistency patterns, database scaling, Redis, Kubernetes, CI/CD pipelines, Jaeger or Zipkin, event-driven architecture, API lifecycle management, contract testing, Camunda BPM or similar platforms, fintech or banking systems.

• Work from Anywhere principle;
• Mentoring and adaptation systems for new employees;
• Transparent performance review and assessment systems;
• Access to educational platforms, seminars, and practices;
• Stable and competitive salary;
• Extensive benefits package;
• Opportunities for specialist or managerial growth;
• The company operates in Kazakhstan.