We are looking for a Senior JavaScript Full-Stack Developer with AWS experience to join our team and help build scalable, high-performance production systems. In this role, you will contribute across the stack, shaping both frontend experiences and backend services while collaborating on architectural decisions that support our evolving platform.ResponsibilitiesDesign, develop, and ship production-ready full-stack web applicationsBuild accessible, performant user interfaces using TypeScript and modern component frameworksImplement and maintain backend services on the JVM or with shared TypeScript platform librariesDesign and evolve data models across relational and NoSQL databases for product featuresDevelop and integrate APIs using gRPC, protobuf, HTTP, and RESTDeploy and operate applications on AWS using containers and CI/CD pipelinesApply caching, queuing, and eventual-consistency strategies to ensure scalability and reliabilityMaintain strong testing discipline across unit, integration, and end-to-end layersCollaborate with cross-functional teams to define technical direction and platform standardsRequirements3+ years of professional full-stack web engineering experience shipping production systemsProficiency in TypeScript and React, including state management, accessible UI patterns, and browser performance optimizationBackend expertise in Kotlin or Java on the JVMSkills in gRPC, protobuf, and HTTP/REST API developmentCompetency in DynamoDB and PostgreSQL for product-feature data modeling, with familiarity with RedisUnderstanding of caching, queues, and eventual-consistency trade-offsCapability to work effectively with AWS, containers, and CI/CD as a consumerStrong testing discipline across unit, integration, and end-to-end layersEnglish proficiency at an Upper-Intermediate level (B2) or higherNice to haveFamiliarity with a cross-platform mobile framework such as React Native, Kotlin Multiplatform, Flutter, or CapacitorBackground in authentication and identity systems, including OAuth/OIDC, SSO, and third-party providersExperience with authoring tools, CMSes, or internal back-office applicationsKnowledge of OpenTelemetry, structured logging (SigNoz), and design systems with shared component librariesExposure to EdTech / K-12 or other domains with strong privacy and accessibility requirements (FERPA, COPPA, WCAG)We offerInternational projects with top brandsWork with global teams of highly skilled, diverse peersHealthcare benefitsEmployee financial programsPaid time off and sick leaveUpskilling, reskilling and certification coursesUnlimited access to the LinkedIn Learning library and 22,000+ coursesGlobal career opportunitiesVolunteer and community involvement opportunitiesEPAM Employee GroupsAward-winning culture recognized by Glassdoor, Newsweek and LinkedInEPAM is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, sexual orientation, gender identity or expression, disability, protected veteran status, or any other characteristic protected by applicable law.