Senior Full-stack Developer (Node.js, Angular, Java, JavaScript)

We're looking for a Senior Full-stack Developer (Node.js, Angular, Java, JavaScript) to join our team in Poland. The ideal candidate thrives on solving complex problems, modernizing legacy platforms, and delivering robust cloud-native solutions. In this role, you’ll be hands-on with the full technology stack—shaping architecture, leading development efforts, and partnering closely with cross-functional teams to drive strategic initiatives forward. If you are an engineer who enjoys both the technical and collaborative aspects of building software at scale, we’d love to meet you. Please note that hybrid work, 3 days from Gdansk or Krakow, is required. Responsibilities Design, develop, and deploy backend services, microservices, and RESTful APIs—primarily in Node.js—with front-end contributions in AngularModernize legacy systems by evaluating current-state architectures and defining target-state solutions that maximize performance, scalability, and maintainabilityDeliver high-quality software in an agile environment, partnering closely with product managers, architects, and other engineering teamsOwn the end-to-end development lifecycle: requirements gathering, solution design, coding, testing (including API and Playwright automation), deployment, and operational supportImplement and manage AWS cloud services (e.g., EC2, S3, Lambda, Kinesis, Firehose, DynamoDB, EKS, CloudWatch) to build resilient, observable, and secure solutionsPromote best practices in coding standards, testing, monitoring (via Splunk, Honeycomb), and documentationMentor and guide engineers, fostering a culture of technical excellence, ownership, and continuous improvementEngage directly with clients and stakeholders, translating broad, ambiguous business needs into concrete technical plans Requirements Bachelor's degree in Computer Science, Engineering, or related field; Master's degree strongly preferred5+ years of professional software development experience, with demonstrated leadership in building production-grade systemsDeep expertise in Node.js, microservices architecture, REST API design, and full-stack development (Angular contributing to ~20% of workload)Proven success modernizing legacy systems, assessing current architectures, and defining target-state designsHands-on experience with AWS cloud services (EC2, S3, Lambda, Kinesis, Firehose, DynamoDB, EKS, CloudWatch, and related tools)Experience with relational and NoSQL databases (DynamoDB, PostgreSQL); familiarity with DB2 is a plusProficiency using modern monitoring and observability platforms (Splunk, Honeycomb) and automated testing frameworks (API testing tools, Playwright)Strong command of agile methodologies and iterative delivery Nice to have Exposure to Java for DB2 integration and legacy system interfacingExperience leading cross-functional initiatives in large enterprise environmentsFamiliarity with API management, security, and governance best practicesExperience with Playwright We offer We gather like-minded people:Top tech minds driving innovation in AI, cloud and digital platform modernizationSupportive team and agile, startup-like cultureHybrid by design mode and opportunity to work remotely within PolandChance to work abroad for up to 60 days annuallyBusiness-driven relocation opportunitiesWe provide growth opportunities:Career development programsThought leadership, mentoring, soft skills and well-being programsCertification (Anthropic, Gemini, GCP, Azure, AWS)English classesWe cover it all:Stable payParticipation in the Employee Stock Purchase Plan with a 15% discountBenefits package (health insurance, multisport, shopping vouchers)Referral bonuses up to $2,000Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and moreCorporate, social and well-being eventsPlease, note:Benefits listed above are available to employees onlyWe are open for working with Contractors. Terms of B2B cooperation agreements are agreed individuallyWe will reach out to selected candidates exclusively EPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.