Senior JavaScript Fullstack Developer

Description

Summary: Seeking a Senior JavaScript Full-Stack Developer to build and evolve an internal developer portal with a focus on TypeScript, frontend architecture, and cloud delivery. Highlights: 1. Lead spec-driven execution and collaborate across distributed teams 2. Raise engineering quality through reviews and mentorship 3. Design frontend architecture and define TypeScript standards We are seeking a **Senior JavaScript Full\-Stack Developer** to build and evolve an internal developer portal with a strong focus on TypeScript standards, frontend architecture, and cloud\-based delivery. You will lead spec\-driven execution, collaborate across distributed teams, and raise engineering quality through reviews and mentorship—apply now. **Responsibilities** * Design frontend architecture decisions including component structure and state management * Define TypeScript standards and performance best practices for the portal * Build Node.js services and integrations that support the developer platform * Implement spec\-driven development so each feature maps back to an approved spec * Review code and enforce quality, security, and maintainability standards * Mentor engineers and guide technical decisions across the team * Integrate internal tooling and platform extensions to streamline SDLC workflows * Coordinate delivery across distributed teams with a required work\-hour shift until 2pm PST **Requirements** * 3\+ years of JavaScript/TypeScript fullstack experience with Node.js * Cloud platform experience including application hosting and deployment * Senior\-level leadership experience providing technical direction and code review * Strong project ownership skills working independently across distributed teams * Advanced Node.js backend development skills for APIs and integrations * Strong TypeScript skills with attention to standards and performance * Effective communication and collaboration skills in cross\-functional environments * English proficiency: B2 Upper\-Intermediate **Nice to have** * Backstage experience including plugin and template development * Elastic Stack or Elasticsearch integration experience * Terraform experience including running or automating Terraform scripts * Google Cloud Platform experience * Web application hosting and Node.js deployment experience **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