We are looking for a skilled and proactive **JavaScript Developer** to join our team in revolutionizing how software is demonstrated for sales and marketing teams. This is a unique opportunity to contribute to a cutting\-edge demo platform while collaborating with cross\-functional teams, including Solutions Engineers, Customer Success Managers, and Product Development specialists, to deliver impactful results. 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 aligned with prospects' advanced technical needs and business objectives * Address challenges like complex Authentication flows and web application rendering to ensure seamless and reliable demo experiences * Develop and implement AI\-driven solutions and automations to scale operational efficiency and innovation * Translate customer insights and technical constraints into actionable contributions for product feature enhancements * Curate, expand, and oversee an evolving shared demo asset library and technical resources for streamlined internal team enablement and consistency * Draft detailed technical statements of work and insightful activity reports for customers, product teams, and leadership, providing advanced analyses of outcomes and hurdles **Requirements** * 2\+ years of experience in a relevant technical role, with a focus on web development * Mastery of core web technologies such as HTML, CSS, and JavaScript, backed by strong skills in diagnosing and resolving web\-related issues * Deep understanding of browser and network behavior, web request\-response cycles, advanced authentication mechanisms like OAuth2 and JWT, complex storage solutions including localStorage and cookies, as well as frontend/backend interaction flows * Expertise in browser developer tools like Chrome DevTools or equivalent and performing advanced debugging tasks * Proven experience in crafting and deploying AI\-based solutions for operational optimization * Excellent communication skills to simplify and convey complex technical concepts effectively across varied stakeholders * Proficiency in managing shifting priorities in dynamic environments with agile workflows and project demands * Strong focus on identifying and implementing operational improvements and scalable solutions * Extensive understanding of sales and marketing workflows, ensuring alignment with the company mission and product vision * Problem\-solving mindset with a hands\-on approach to uncovering and resolving technical pain points proactively * Availability to overlap work hours until 1 PM ET for CEE candidates, with flexible collaboration across time zones * B1\+ English level proficiency **Nice to have** * Experience in optimizing and troubleshooting enterprise\-grade web applications * Knowledge of customer success strategies, sales enablement tools, or CRM platforms * Portfolio including projects showcasing 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.*