We are seeking a Senior Full-Stack Developer to maintain and enhance a complex application platform hosting over 40 applications across multiple technology stacks.You will work on both back-end and front-end solutions, collaborating closely with stakeholders to deliver practical and maintainable software. Join us to contribute to replacing legacy systems and advancing our technology landscape.This role offers a hybrid model, providing full flexibility while requiring on-site presence only once per quarter at one of our offices located in Kraków, Wrocław, Warszawa, Gdańsk, or Katowice.Responsibilities Maintain and evolve a complex, multi-application platform landscape Collaborate with stakeholders to understand needs and translate them into practical, maintainable technical solutions Work across multiple applications within the platform, ensuring consistency and quality Analyze and reverse-engineer legacy components to improve, refactor, or replace them as needed Develop and support Java and Angular applications Ensure code quality and adherence to best practices Participate in code reviews and provide constructive feedback Implement CI/CD pipelines and support DevOps activities Troubleshoot and resolve technical issues Stay updated with emerging technologies and suggest improvements Document technical specifications and changes Requirements 3+ years of experience in software development Recent hands-on experience with Java 11+ Practical experience with Angular 14+ Strong knowledge of RxJS and NgRx Proficiency with Spring Boot Solid SQL skills Familiarity with CI/CD pipelines, Kubernetes and DevOps practices Ability to work within complex application landscapes Strong collaboration skills with stakeholders Experience working in a hybrid work environment English language proficiency B2 Upper-Intermediate Nice to haveExperience with PHPWe offer We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview We will reach out to selected candidates exclusively 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.