Backend Developer (Kotlin) in Kazakhstan

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MidHybryda·AlmatyFull-time·Umowa o pracę

#472500·Dodano wczoraj·0

Źródło: justjoin.it

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Tech Stack / Keywords

Kotlin Java Spring SQL

Podsumowanie oferty

You will build backend solutions for a business banking mobile application based on microservices architecture. The role focuses on developing and maintaining microservices using Kotlin and Java.

Wymagania

3+ years of experience in backend development.
Strong proficiency in Kotlin and Java, including Kotlin data classes, sealed classes, extension functions, scope functions, Coroutines and Flow, and 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 (R2DBC and JPA), Transaction Management, and Spring AOP.
Advanced knowledge of PostgreSQL and SQL, including query optimization, EXPLAIN ANALYZE, indexing, complex queries, window functions, and CTEs.
Production experience with Kafka, including producers, consumers, partitions, and offsets.
Strong expertise in REST API design, including versioning, pagination, and error handling.
Practical experience with Docker and advanced Git workflows, including rebase, cherry-pick, and conflict resolution.
Hands-on experience with monitoring and observability tools such as Prometheus, Grafana, and Micrometer, including structured logging, correlation IDs, and alerting 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 and integration testing, JUnit / Kotest, MockK, and Testcontainers.
English level: Intermediate+ or above.

Nice to have:

Experience with database migration tools such as Liquibase or Flyway.
Experience with Java 17+ features, including records, pattern matching, and sealed classes.
Knowledge of Spring WebFlux and reactive programming, including Mono, Flux, and backpressure principles.
Experience with Spring Security, including OAuth2 and JWT authentication and authorization flows.
Understanding of distributed transactions and consistency patterns.
Practical experience with database scaling, including replication, sharding, and partitioning.
Hands-on experience with Redis, including caching strategies, pub/sub, and distributed locks.
Experience with Kubernetes, including deployments, services, ConfigMaps, and Secrets configuration.
Practical experience building and maintaining CI/CD pipelines using Jenkins, GitLab CI, or GitHub Actions.
Experience with distributed tracing tools such as Jaeger or Zipkin.
Knowledge of event-driven architecture principles and patterns.
Understanding of API lifecycle management.
Experience with contract testing using Pact or Spring Cloud Contract.
Experience with Camunda BPM or similar workflow and orchestration platforms.
Background in fintech or banking systems.

Obowiązki

Develop and maintain a microservices architecture.
Optimize database performance and queries.
Configure monitoring, logging, and alerting.
Handle deployment and infrastructure management.
Conduct code reviews, mentor others, and design architecture from scratch.

Benefity

The company provides mentoring and adaptation systems for new employees.
The company provides access to educational platforms, seminars, and practices.

Andersen

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