Senior Full Stack Developer (JS)

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 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