We are looking for a Senior Full Stack Developer (JS) with strong AI knowledge to join our team. Our engineering group thrives on building cutting-edge digital products that solve complex user problems at scale. We value collaborative innovation, technical excellence, and continuous learning in a fast-paced environment. Joining us means shaping the future of our core architecture while driving impactful feature development from conception to deployment.

Responsibilities

- Architect, design, and implement scalable web applications using modern JavaScript ecosystems and advanced AI capabilities
- Collaborate closely with cross-functional product, design, and data science teams to define feature requirements and technical specifications
- Optimize client-side and server-side components for maximum performance, responsiveness, and seamless user experience
- Integrate state-of-the-art machine learning models and AI services into production-grade web workflows
- Write clean, maintainable, and well-documented code adhering to industry best practices and internal coding standards
- Design and execute comprehensive unit, integration, and end-to-end testing strategies to ensure robust software quality
- Configure, maintain, and streamline bundling, build pipelines, and task automation for efficient development cycles
- Mentor junior and mid-level engineers, conduct thorough code reviews, and champion engineering culture growth
- Troubleshoot, debug, and resolve complex production incidents across the entire application stack
- Participate in architectural planning sessions and drive technological modernization initiatives across the engineering department

Requirements

- Minimum of 3 years of relevant professional software development experience demonstrating progressive technical responsibility
- Comprehensive expertise in Full Stack Development, encompassing both responsive client-side interfaces and robust server-side backend architectures




- Deep theoretical and practical knowledge of Artificial Intelligence (AI) concepts, machine learning integrations, and intelligent feature implementation
- Advanced proficiency in JavaScript for building dynamic, high-performance web applications and asynchronous workflows
- Extensive hands-on experience with React for creating modular, reusable UI components and managing complex state management flows
- Strong backend development skills using Node.js to build scalable asynchronous RESTful APIs, microservices, and server-side logic
- Experience utilizing Python for data processing, AI model interfacing, or backend services
- Familiarity with Java for enterprise-grade backend service integration and robust service architecture
- Knowledge of Go for developing high-performance concurrent backend microservices and utilities
- Experience writing robust unit tests and assertions using Testify
- Proficiency with Webpack for advanced asset bundling, code splitting, and optimization
- Familiarity with Jest for running modern JavaScript unit tests and snapshot testing
- Experience configuring and running Karma test runner across multiple browsers
- Knowledge of Mocha for flexible asynchronous JavaScript testing and assertion structuring
- Experience automating build workflows, minification, and compilation tasks using Gulp
- Familiarity with Grunt for legacy task automation and project build management
- Fluent English communication skills at a B2 level or higher, enabling effective collaboration in a distributed international team environment

We offer

- International projects with top brands
- Work with integral 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

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