Senior Full-Stack Engineer (React + JavaScript)

• Design and build scalable, high-performance frontend applications using React and JavaScript, delivering intuitive interfaces for campaign management, targeting, and analytics dashboards
• Develop and optimize responsive UI components that ensure exceptional user experiences across advertising platform views and reporting interfaces
• Integrate frontend applications with REST APIs built in Java, .NET, or Node.js, and contribute to API design to ensure efficient frontend-backend interaction
• Collaborate with Product, Design, and Marketing teams to translate business requirements into polished, high-quality user-facing features at pace
• Participate in system design discussions, code reviews, and CI/CD processes to help scale the AdTech platform from MVP to enterprise-grade solution
• Support integrations with major advertising ecosystems, troubleshoot production issues, and drive continuous improvements to performance and platform stability

• 6 to 8 years of software engineering experience with a strong emphasis on frontend development using JavaScript ES6+ and React, including hooks, state management, and component architecture
• Proven track record building complex, data-driven UI applications using modern frontend tooling such as Webpack, Vite, and CI/CD pipelines
• Hands-on experience integrating and designing REST APIs alongside working knowledge of backend technologies including Java, .NET, or Node.js
• Experience with cloud-based applications and Agile development environments, with solid understanding of CI/CD, DevOps practices, and application resiliency
• Strong problem-solving skills with the ability to collaborate effectively in fast-paced, distributed engineering teams across multiple time zones
• Background in AdTech, digital advertising, or media and publishing domains, with experience integrating advertising platforms such as Google Ad Manager or similar ecosystems would be nice-to-have

Join a global engineering team building an enterprise-grade digital advertising platform used by millions. You will design scalable React frontends, integrate REST APIs, and drive the expansion of a high-performance AdTech solution that transforms how brands connect with audiences worldwide. Join EPAM to engineer solutions that matter. From AI to cloud transformation, you'll collaborate with top-tier innovators, gain autonomy to explore your ideas, and grow your skills in a culture built for tech excellence., EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our clients, 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.Engineer the Future with a Career at EPAM (https://www.youtube.com/embed/NU_mnNITn2o?si=IiCxyQ4sr1YJWxDG), EPAM will not provide new H-1B visa sponsorship for this position. Candidates with existing transferable H-1B status may be considered. EPAM Systems, Inc. is an equal opportunity employer. We recognize the value of diversity and inclusion in creating success for our customers, business partners, shareholders, employees and communities. We are committed to recruiting, hiring, developing and promoting employees without discrimination. As a global employer, this commitment includes complying with all laws in the countries in which we operate. Nevertheless, we believe equal employment practices should not be limited to what the law requires. Equal opportunity and inclusion are essential to motivate, empower and recognize the best in everyone. At EPAM, employment actions are based on individual qualifications, without regard to race, color, religion, creed, gender, pregnancy status, sexual orientation, gender identity, gender expression, marital or familial status, national origin, ancestry, genetics, age, disability status, veteran status, citizenship status when otherwise legally able to work, or any other characteristic protected by law.