Senior JavaScript Full-Stack Developer (Java/Kotlin, React)

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 a Senior JavaScript Full-Stack Developer to build and run web platforms that are reliable, secure, and scalable across modern architectures. You will work with a collaborative team to deliver end-to-end features from design through launch. Apply now to help shape what we ship next!

Responsibilities

• Design and deliver full-stack features using JavaScript, TypeScript, ReactJS, and Java or Kotlin
• Build and evolve GraphQL APIs that support scalable client and server interactions
• Maintain multiple production systems through debugging, monitoring, and operational support
• Ensure services meet SLAs by improving reliability, incident response, and runbooks
• Evaluate and select technologies by comparing trade-offs across platforms and architectures
• Collaborate across teams to align system boundaries, integrations, and ownership
• Implement testing practices across unit and integration layers to protect production quality
• Improve observability with logging, metrics, and alerting to reduce time to detect and resolve issues
• Develop secure workflows for identity- or security-sensitive components
• Contribute to agile planning, estimation, and delivery to ship predictable outcomes
• Use AI-assisted development tools to improve productivity while maintaining code quality

Requirements

• 3+ years of full-stack experience with JavaScript and TypeScript
• Experience building web UIs with ReactJS
• Hands-on experience with Java or Kotlin in production systems
• Practical experience designing and consuming GraphQL APIs
• Proven experience supporting multiple production systems with debugging and on-call operational support
• Ability to evaluate and select technologies while understanding trade‑offs between platforms and architectures
• Solid project delivery skills working in an agile environment and meeting defined SLAs
• Strong systems thinking across teams and dependencies in a large-scale organization
• Strong understanding of identity- or security-sensitive system constraints
• Knowledge of testing, observability, and monitoring practices (logging, metrics, alerting)
• Experience with Amazon Web Services and Google Cloud Platform
• Familiarity with AI-assisted development tools and workflows
• Strong communication and collaboration skills across engineering and partner teams
• Upper-Intermediate English proficiency (CEFR B2)

We offer

• International projects with top brands
• Work with global teams of highly skilled, diverse peers
• Healthcare benefits
• Employee financial programs
• Paid time off and sick leave
• Upskilling, reskilling and certification courses
• Unlimited access to the LinkedIn Learning library and 22,000+ courses
• Global career opportunities
• Volunteer and community involvement opportunities
• EPAM Employee Groups
• Award-winning culture recognized by Glassdoor, Newsweek and LinkedIn