Senior JavaScript Full-Stack Developer

We are seeking an experienced Senior JavaScript Full-Stack Developer to build and evolve production web systems. You will deliver accessible, high-performance UIs and reliable JVM- and TypeScript-based services on cloud infrastructure. Apply to help shape and ship key platform capabilities!

Responsibilities

• Design full-stack solutions that meet product needs with clear trade-offs and scalable patterns

• Build TypeScript and React features with accessible UI patterns and strong client performance

• Develop backend services and shared libraries using Java or Kotlin on the JVM and TypeScript where appropriate

• Implement service-to-service communication using gRPC/protobuf and integrate HTTP/REST APIs

• Model and evolve data in DynamoDB and PostgreSQL to support product features and reliability

• Operate effectively within AWS environments, containers, and CI/CD pipelines to ship safely

• Write and maintain unit, integration, and end-to-end tests to protect quality and delivery speed

• Coordinate cross-team technical decisions and drive design reviews to align implementations

• Improve observability and debuggability through structured logging and tracing practices

• Document architecture, interfaces, and operational guidance to support long-term ownership

Requirements

• 3+ years of full-stack web engineering experience shipping production systems

• Proficiency in TypeScript and React, including state management

• Deep knowledge of UI accessibility patterns and browser performance optimization

• Solid backend skills in Java or Kotlin on the JVM, or TypeScript for shared libraries

• Extensive experience with gRPC + protobuf, HTTP, and REST

• Hands-on data modeling experience with DynamoDB and PostgreSQL

• Practical cloud platform experience using AWS, containers, and CI/CD as a consumer

• Rigorous testing discipline across unit, integration, and end-to-end tests

• Excellent collaboration and communication skills across teams

• Clear technical writing skills for designs and operational runbooks

• Upper-Intermediate English proficiency (B2)

Nice to have

• Cross-platform mobile framework experience such as React Native, Kotlin Multiplatform, Flutter, or Capacitor

• Authentication and identity systems knowledge, including OAuth, OIDC, SSO, and third-party providers

• Experience with OpenTelemetry and structured logging tooling

• Experience building design systems and shared component libraries

• Familiarity with authoring tools, CMSes, or internal back-office applications

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