Senior JavaScript Full-Stack Developer

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.

Responsibilities
Design, develop, and ship production-ready full-stack web applications
Build accessible, performant user interfaces using TypeScript and modern component frameworks
Implement and maintain backend services on the JVM or with shared TypeScript platform libraries
Design and evolve data models across relational and NoSQL databases for product features
Develop and integrate APIs using gRPC, protobuf, HTTP, and REST
Deploy and operate applications on AWS using containers and CI/CD pipelines
Apply caching, queuing, and eventual-consistency strategies to ensure scalability and reliability
Maintain strong testing discipline across unit, integration, and end-to-end layers
Collaborate with cross-functional teams to define technical direction and platform standards
Requirements
3+ years of professional full-stack web engineering experience shipping production systems
Proficiency in TypeScript and React, including state management, accessible UI patterns, and browser performance optimization
Backend expertise in Kotlin or Java on the JVM
Skills in gRPC, protobuf, and HTTP/REST API development
Competency in DynamoDB and PostgreSQL for product-feature data modeling, with familiarity with Redis
Understanding of caching, queues, and eventual-consistency trade-offs
Capability to work effectively with AWS, containers, and CI/CD as a consumer
Strong testing discipline across unit, integration, and end-to-end layers
English proficiency at an Upper-Intermediate level (B2) or higher
Nice to have
Familiarity with a cross-platform mobile framework such as React Native, Kotlin Multiplatform, Flutter, or Capacitor
Background in authentication and identity systems, including OAuth/OIDC, SSO, and third-party providers
Experience with authoring tools, CMSes, or internal back-office applications
Knowledge of OpenTelemetry, structured logging (SigNoz), and design systems with shared component libraries
Exposure to EdTech / K-12 or other domains with strong privacy and accessibility requirements (FERPA, COPPA, WCAG)
We offer/Benefits
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

Location: Remote - Chile, Colombia, Argentina, Brazil, Mexico

Skills required for this job:

• API development
• AWS
• Accessibility
• Amazon DynamoDB
• Authentication
• CI/CD
• Caching
• Content management systems
• Design systems
• Full-stack development
• Java virtual machine
• Mobile app development
• OAuth
• OpenID connect
• OpenTelemetry
• PostgreSQL
• Protocol Buffers (Protobuf)
• REST API
• React.js
• Redis
• Single sign-on (SSO)
• Testing
• TypeScript
• gRPC