Our engineering group is expanding and needs a Senior Full Stack Developer (JS) with substantial AI expertise. The position focuses on delivering innovative digital solutions for challenging user needs. You will join a fast-moving environment that encourages shared problem-solving, disciplined engineering, and continuous professional development. Your contributions will help evolve our core technology and bring major product enhancements to market

Responsibilities

- Drive the design and implementation of high-performing web products using contemporary JavaScript stacks and intelligent automation functionality
- Align with product stakeholders, UI professionals, and data experts on technical constraints, project priorities, and functional targets
- Optimize client-side behavior and backend operations to deliver smooth journeys, rapid response times, and dependable execution
- Introduce machine learning models and cognitive capabilities into production through secure and scalable deployment patterns
- Maintain code quality by producing readable implementations, useful technical documentation, and sustainable software designs
- Plan and perform layered validation activities that cover components, connected systems, and full application scenarios
- Improve development velocity by operating build processes, deployment automation, and continuous integration workflows
- Encourage the growth of early-career developers through detailed feedback and collaborative code-inspection practices
- Analyze difficult platform-wide issues, isolate their source, and restore stable service operation
- Help steer long-term architecture direction and champion modern methods throughout the engineering function

Requirements

- Three or more years of relevant industry experience delivering software with increasing leadership exposure
- Broad command of full stack application design, including rich web interfaces and scalable server infrastructure




- In-depth knowledge of artificial intelligence techniques, machine learning use cases, and algorithmic feature development
- High-level JavaScript capability for interactive web development, rapid rendering, and non-blocking operations
- Experience with React for component-based interface construction and complex state-management solutions
- Strong Node.js development skills for asynchronous endpoints, high-capacity APIs, and distributed microservices
- Experience applying Python to analytical data workflows, AI engine connections, or backend support services
- Working familiarity with Java for enterprise software interoperability and dependable service development
- Knowledge of Go when creating efficient concurrent backend programs and technical utility packages
- Practical experience developing automated test coverage with the Testify framework
- Proficiency in Webpack for organizing bundles, optimizing assets, and implementing code partitioning
- Hands-on familiarity with Jest for modern JavaScript testing and validation workflows
- Ability to configure and operate Karma for cross-browser test execution
- Working knowledge of Mocha for customizable asynchronous code tests and assertion structures
- Experience streamlining builds, minifying resources, and automating compilation work with Gulp
- Exposure to Grunt-based projects that require maintenance of legacy task automation
- B2 or higher English proficiency for clear collaboration with globally distributed colleagues

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 Full Stack Developer (JS) (Argentina)
🏢 EPAM Systems
📍 Argentina