Overview

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

Romania

We believe that the greatest strength of the company is its people. EPAM is fully committed to help its employees to reach their full potential and achieve their professional goals through continues learning. With this in mind, we would like to introduce to you few of the many opportunities and services which we believe will help you expand your current knowledge:

  • 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

Serbia

  • Diverse multicultural, multi-functional, and multilingual work environment.

  • Global scope, international projects in different business domains: life sciences and healthcare, retail, and distribution, software and hi-tech, etc.

  • Outstanding career development opportunities with a transparent career path and a roadmap to accelerate your journey.

  • Numerous opportunities for self-development: hard & soft skills internal training courses, mentoring programs, and unlimited access to LinkedIn Learning courses.

  • Knowledge-sharing with colleagues from EPAM's global tech communities.

  • English language courses.

  • 25 days holiday per annum.

  • 5 days of sick leave without medical certification.

  • Private health insurance for employees and discount for private health insurance for family members.

  • Discount for Fit Pass program.

  • Comfortable modern offices in Belgrade and Novi Sad or remote work from any location in Serbia.

  • Regular corporate and social events (parties, sport events, advanced CSR programs etc.).

  • Learning programs for kids (eKids).

[epamgdo] Romania (About EPAM)

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.

[epamgdo] Serbia (Recruitment Process)

Thank you for your interest in this position. Please note that only candidates whose experience closely matches the job requirements will be contacted. If you do not receive an email from us, please do not be discouraged—feel free to apply for other positions that better align with your experience. If you have any questions, you can reach us at jobserbia@epam.com

[epamgdo] Serbia (About EPAM)

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, diverse community to help you discover your fullest potential.

No less important is our applicants' safety, well-being, and experience. Therefore, until further notice, all EPAM employment interviews will be conducted remotely. Our recruitment professionals and hiring managers are standing by to ensure a robust and engaging virtual candidate experience. We look forward to speaking with you!