Senior Java/Kotlin Developer

EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

We are looking for an experienced Senior Java/Kotlin Developer to join our team and contribute to the design, development, and maintenance of robust backend systems. As part of an agile environment, you will leverage your expertise in Kotlin and modern backend technologies to create scalable and high-performing services, ensuring reliability and efficiency for business-critical systems.

Responsibilities

• Develop, maintain, and optimize scalable microservices using Kotlin and Spring Boot
• Ensure the reliability, availability, and high performance of backend systems to support key business functionalities
• Build features to maintain consistency, accuracy, and traceability for critical backend transaction data
• Manage the complete operational lifecycle (DevSecOps), including deployment, monitoring, troubleshooting, and on-call support
• Work closely with cross-functional teams to transform business needs into clear and scalable technical solutions
• Design and refine robust systems for event-driven architectures using tools such as Kafka
• Implement testing strategies, including unit and integration tests, to ensure code quality

Requirements

• 3+ years of experience in Java/Kotlin development, with knowledge of Spring Boot and event-driven systems like Kafka
• Strong understanding of asynchronous communication patterns (e.g., Kafka or RabbitMQ)
• Familiarity with Rest API design principles and contract-first API development
• Knowledge of relational and NoSQL databases such as PostgreSQL and MongoDB
• Expertise in writing unit and integration tests using tools like JUnit, Mockk, and Mockito
• Background in observability practices with experience in monitoring, logging, and alerting solutions
• Capability to translate business requirements into technical solutions and well-defined user stories
• Excellent command of written and spoken English (B2+ level)

Nice to have

• Experience working with high-volume, mission-critical systems requiring reliability and scalability under heavy loads
• Knowledge of fault-tolerant designs, including patterns like retries, idempotency, and circuit breakers
• Experience in contract-first REST API development using OpenAPI
• Proficiency in performance testing tools such as Gatling with Kotlin
• Familiarity with running and debugging services in Kubernetes environments

We offer

• Full access to cutting-edge tools and technologies
• Competitive compensation depending on experience and skills
• All-around Social package: professional & soft skills training, medical & family care programs, sports
• Free English classes
• Unlimited access to LinkedIn learning solutions
• Continuous experience exchange with experts and professionals worldwide
• Friendly team and comfortable working environment
• Engineering, corporate, and social events within and outside the Company
• Flexible working schedule
• Opportunities for self-realization