We are seeking a **Senior JavaScript Frontend Developer** to join our dynamic engineering team focused on advancing AI\-driven legal technology. You will contribute to developing and enhancing SaaS products, collaborating cross\-functionally to deliver high\-quality solutions. If you are passionate about building complex web systems and thrive in fast\-paced environments, we encourage you to apply. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi\-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting\-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential. **Responsibilities** * Design software solutions that align with user needs * Test and debug applications to ensure optimal performance * Develop and maintain frontend components using JavaScript and React * Collaborate with backend developers to integrate REST APIs and Node.js services * Communicate effectively with cross\-functional teams including Product Management and Customer Service * Estimate tasks and manage production deadlines efficiently * Contribute to the evolution of AI\-assisted legal technology platforms * Support and enhance existing SaaS products through ongoing maintenance * Participate in code reviews and share knowledge within the engineering team * Adhere to best practices in software development and security * Facilitate knowledge transfer and onboarding of new team members * Ensure compatibility and performance across different environments including Windows VDI **Requirements** * Proven experience of 3\+ years in JavaScript development including async/await, Promises, and array/object methods * Strong knowledge of React framework and its ecosystem * Experience with backend development and API integration using Node.js * Demonstrated ability to build and deliver complex web systems to clients * Effective communication skills to interact with users, technical teams, and management * Bachelor's degree in Computer Science, Electrical Engineering, Computer Engineering, or equivalent professional experience * Ability to work at least 3\-4 hours overlapping with California PDT timezone * Upper\-Intermediate English proficiency (B2\) to collaborate within a global team **Nice to have** * Experience working with databases and data management * Ability to perform self\-sufficient testing without reliance on QA teams * Background or interest in legal technology * Advanced Python skills for full\-stack development * Familiarity with AI and machine learning concepts **We offer** * Connectivity Bonus (25,000 ARS are paid with a salary receipt at the end of each month as a non\-wages concept). * Medicina Prepaga (It covers the collaborator and direct family group). * Paternity Leave (Two additional days are added to what is established by law, total of 4 days). * Discounts card. * English Training (English lessons, twice per week). * Training Program (Access to multiple customized training plans according to the needs of each role within the company). * Marriage bonus (The company doubles the allowance established by law that ANSES offers). * Referral Program (Referral bonus is paid when the referral of a collaborator joins the Company). * External Agreements and Discounts. * Vacations: 14 calendar days a year *By applying to our role, you are agreeing that your personal data may be used as in set out in EPAM´s Privacy Notice and Policy.*