We are seeking a highly skilled **Senior Staff Software Engineer** with deep expertise in Angular and Ruby on Rails to design, build, and optimize scalable, secure, and customer-focused financial applications. You will collaborate with cross-functional teams, mentor developers, and drive architectural decisions that align with business goals. Req. #878154129 **Responsibilities** + Design, develop, and maintain scalable web applications using Angular and Ruby on Rails + Build and enhance backend services, APIs, and integrations (RESTful and GraphQL) + Write clean, reusable, and efficient code following best practices + Collaborate with Product Managers, Designers, and Engineers to translate requirements into solutions + Identify and resolve bottlenecks, bugs, and performance issues + Refactor legacy code to improve scalability and maintainability + Lead and mentor junior developers, fostering a culture of knowledge sharing + Conduct code reviews to ensure quality and consistency + Actively participate in Agile/Scrum ceremonies and contribute to team delivery + Evaluate and recommend new tools, frameworks, and technologies to improve productivity **Requirements** + Bachelor’s degree in Computer Science, Software Engineering, or related field + 5+ years of full-stack development experience with strong expertise in Angular (v10+) and Ruby on Rails + Solid understanding of HTML5, CSS3, JavaScript (ES6+), and TypeScript + Experience with RESTful APIs, GraphQL (preferred), and microservices architecture + Proficiency with relational databases (PostgreSQL/MySQL) and Active Record + Familiarity with cloud platforms (AWS preferred) and CI/CD pipelines + Hands-on experience with Docker, Kubernetes, or other container technologies a plus + Strong problem-solving, analytical, and communication skills + Ability to thrive in a fast-paced, dynamic, and collaborative environment **We offer** + Medical, Dental and Vision Insurance (Subsidized) + Health Savings Account + Flexible Spending Accounts (Healthcare, Dependent Care, Commuter) + Short-Term and Long-Term Disability (Company Provided) + Life and AD&D Insurance (Company Provided) + Employee Assistance Program + Unlimited access to LinkedIn learning solutions + Matched 401(k) Retirement Savings Plan + Paid Time Off + Legal Plan and Identity Theft Protection + Accident Insurance + Employee Discounts + Pet Insurance + Employee Stock Purchase Program 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 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.