Senior JavaScript Fullstack Developer

Description

Summary: Seeking a Senior JavaScript Full-Stack Developer to build and evolve an internal developer portal, focusing on TypeScript standards, frontend architecture, and cloud-based 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 *EPAM 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.*