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
- General career opportunities
- Volunteer and community involvement opportunities
- EPAM Employee Groups
- Award-winning culture recognized by Glassdoor, Newsweek and LinkedIn

📌 Senior JavaScript Fullstack Developer (Argentina)
🏢 EPAM Systems
📍 Argentina