We are seeking a skilled and proactive **JavaScript Developer** to join our team in transforming software demo experiences for sales and marketing professionals. This role offers an exciting opportunity to shape a cutting\-edge demo platform while collaborating with cross\-functional teams, including Solutions Engineers, Customer Success Managers, and Product Development experts, to achieve impactful outcomes. 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** * Deliver sophisticated demo environments and Proof of Concept (POC) builds tailored to advanced technical needs and business objectives * Address challenges involving complex Authentication flows and web application rendering to create seamless and dependable demo experiences * Develop and implement AI\-driven solutions and automations to enhance operational efficiency and innovation * Translate customer insights and technical limitations into actionable contributions for product feature improvements * Curate, expand, and maintain a dynamic shared demo asset library and technical resources to ensure streamlined internal enablement and consistency * Draft comprehensive technical statements of work and insightful activity reports for customers, product teams, and leadership, offering advanced analyses of outcomes and obstacles **Requirements** * 2\+ years of experience in a relevant technical role, with a focus on web development * Proficiency in core web technologies such as HTML, CSS, and JavaScript, supported by strong diagnostic and problem\-solving skills for web\-related issues * Deep understanding of browser and network behavior, web request\-response cycles, advanced authentication standards like OAuth2 and JWT, complex storage solutions such as localStorage and cookies, and frontend/backend interaction processes * Expertise in browser developer tools like Chrome DevTools or similar platforms, with a focus on advanced debugging capabilities * Background in crafting and deploying AI\-based solutions for operational enhancements * Strong communication skills to clarify and articulate complex technical concepts effectively across diverse stakeholders * Competency in adapting to shifting priorities in dynamic environments with agile workflows and project demands * Focus on identifying and executing operational improvements and scalable solutions * Showcase of extensive understanding of sales and marketing workflows, ensuring alignment with the company mission and product vision * Problem\-solving mindset and a hands\-on approach to uncovering and mitigating technical challenges proactively * Flexibility to collaborate with overlapping work hours until 1 PM ET for CEE candidates and accommodate cooperation across time zones * Minimum English language level of B1\+ **Nice to have** * Familiarity with optimizing and troubleshooting enterprise\-grade web applications * Knowledge of strategies for customer success or experience with sales enablement tools and CRM platforms * Portfolio featuring projects with automation solutions or advanced AI implementations **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.*