Andersen is hiring a Kotlin Developer in Almaty for a project developing a mobile banking app and modular platform, ensuring scalable and efficient digital financial services.

The customer is a large financial institution serving millions of retail and corporate clients. It combines a broad physical presence with strong investment in digital platforms, mobile solutions, data infrastructure, cybersecurity, and open integrations. Technology is central to improving customer experience and scaling modern banking services.

The project is focused on developing a mobile banking application for retail customers and transitioning to a platform of standardized, modular banking solutions. It involves packaging core products such as cards, loans, accounts, and investments into scalable modules to enable faster integration and product expansion.

Responsibilities:

• Developing and maintaining a microservices architecture.
• Optimizing database performance and queries.
• Setting up monitoring, logging, and alerting.
• Handling deployment and infrastructure management.
• Conducting code reviews, mentoring, and designing architecture from scratch.

Requirements:

• Experience in fintech/banking for 3+ years.
• Strong knowledge of Kotlin (data/sealed classes, extension & scope functions, Coroutines, Flow) and solid knowledge of Java (Core, Collections, Generics, Stream API).
• Understanding JVM and multithreading (memory model, GC, performance tuning).
• Experience with Spring Boot and the Spring ecosystem (Data: JPA/R2DBC, Security: OAuth2/JWT, AOP, DI/IoC, transaction management).
• Advanced knowledge of PostgreSQL and SQL (query optimization, indexing, window functions, CTE), understanding of database scaling (replication, sharding, partitioning), and experience with migrations (Liquibase/Flyway).
• Experience with Kafka and Redis (event streaming, caching, pub/sub, distributed locks).
• Experience in designing REST APIs (versioning, pagination, error handling).
• Experience with Docker and Git (advanced level).
• Experience in setting up observability (monitoring, logging, tracing, alerting: Prometheus, Grafana, Micrometer).
• Experience with microservices and event-driven architecture, knowledge of design patterns (SOLID, GoF, DDD) and System Design (scalability, fault tolerance, high availability).
• Experience in writing unit and integration tests (JUnit, Kotest, MockK, Testcontainers).
• English level – from Intermediate and above.

Nice to haves:

• Experience with Java 17+ features (records, pattern matching, sealed classes).
• Experience with Spring WebFlux / Reactive stack, including understanding of Mono, Flux, and backpressure.
• Experience with distributed transactions.
• Experience with Kubernetes, including deployments, services, ConfigMaps, and secrets.
• Practical experience with CI/CD pipelines, including tools such as Jenkins, GitLab CI, or GitHub -Actions.
• Experience with distributed tracing tools such as Jaeger or Zipkin.
• Experience with contract testing, including tools like Pact or Spring Cloud Contract.
• Experience with Camunda BPM or similar workflow engines.
• Experience in fintech or banking systems.

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.

Join us!