Senior Full-Stack Java Developer

We are looking for a Senior Full-Stack Java Developer to maintain and modernize enterprise gateway applications with a backend-first focus and Angular support. You will drive refactoring, dependency upgrades, and security vulnerability remediation across legacy and current stacks. Join us to improve stability, security, and long-term maintainability—apply today. Responsibilities Develop and maintain backend services and REST APIs using Java and Spring Boot Support and upgrade Angular applications across both legacy and current codebases Remediate security vulnerabilities and resolve code quality issues identified by automated tools Apply fixes, refactor existing code, and perform dependency and framework version updates Improve application performance, maintainability, and security through ongoing modernization Analyze and resolve production incidents while upholding strict engineering standards Coordinate with technical leads, QA engineers, architects, and security professionals to deliver changes safely Participate in code reviews and uphold secure coding standards and established best practices Requirements 4+ years of professional experience in Java development 4+ years of hands-on work with Spring Boot and REST APIs Demonstrated experience collaborating with technical leads and cross-functional engineering teams Solid background maintaining enterprise-grade applications and supporting existing codebases Clear understanding of security vulnerability principles and secure development approaches Strong command of Angular 8 and later versions for both development and maintenance Good knowledge of TypeScript and RxJS in day-to-day frontend engineering Proven ability to troubleshoot and support production systems in complex environments Sharp analytical thinking with a strong ownership mindset and close attention to detail Upper-Intermediate English proficiency (B2), in both written and verbal communication Nice to have Experience with the Apigee API management platform We offer International projects with top brands Work with global teams of highly skilled, diverse peers Healthcare benefits Employee financial programs Paid time off and sick leave Upskilling, reskilling and certification courses Unlimited access to the LinkedIn Learning library and 22,000+ courses Global career opportunities Volunteer and community involvement opportunities EPAM Employee Groups Award-winning culture recognized by Glassdoor, Newsweek and LinkedIn EPAM is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, sexual orientation, gender identity or expression, disability, protected veteran status, or any other characteristic protected by applicable law.