Senior Full Stack Developer (Java/Node.js/Angular)

EPAM Systems, Inc.; Kraków; On-site; PLN 250,000 - 380,000; Full time

Benefits offered by this job

Health insurance

Stock Purchase Plan

Hybrid by design

Job summary

EPAM Systems, Inc. is seeking a Senior Full Stack Developer to build cloud-native microservices using Java, Node.js, and Nest.js, while embracing GenAI tools like Claude Code and GitHub Copilot across the full SDLC.

You will work with Angular on the front end and collaborate with product managers and designers to deliver scalable software in a hybrid work setting in Poland. The role emphasizes AI-assisted development, high-quality code, and leadership to mentor junior engineers, with

Qualifications

• 3+ years of experience in full stack software development.
• Experience with Java, Node.js, and Nest.js for backend development.

Responsibilities

• Design, develop, and maintain back-end services using Java, Node.js, and Nest.js.
• Build or contribute to front-end development using Angular and TypeScript.
• Analyze legacy applications and define target state designs and architectures.
• Implement cloud-native microservices using AWS services (Lambda, EC2, S3, CloudFormation, Step Functions).
• Write clean, efficient, and maintainable code following best practices and coding standards.
• Leverage Claude Code, GitHub Copilot, and other GenAI tools as productivity accelerators throughout the SDLC.
• Perform unit, integration, and non-functional testing using Jest, Playwright, and Bruno.
• Participate in sprint planning, estimation, and peer-level code reviews.
• Collaborate with product managers and designers to address technical issues and infrastructure needs.
• Mentor junior developers on engineering fundamentals and GenAI usage practices.

Skills

Java

Node.js

Nest.js

Angular

TypeScript

AWS

DynamoDB

PostgreSQL

DB2

Jest

Playwright

Bruno

Claude Code

GitHub Copilot

CloudFormation

Tools

GitHub Copilot

Claude Code

CloudFormation

Job description

We are looking for a skilled Senior Full Stack Developer to join our team.The ideal candidate will have strong expertise in Java and Node.js for back-end development, with experience or a willingness to learn Angular for front-end development.This role requires a hands-on developer who can design, build, and maintain cloud-native microservices while collaborating with cross-functional teams to deliver high-quality, scalable, and secure software solutions.A non-negotiable aspect of this role is the active and proficient use of Generative AI tools — including Claude Code and similar AI-assisted development platforms — as a core part of the day-to-day engineering workflow.ResponsibilitiesDesign, develop, and maintain back-end services using Java, Node.js, and Nest.jsBuild or contribute to front-end development using Angular and TypeScriptAnalyze legacy applications and define target state designs and architecturesImplement cloud-native microservices using AWS services (e.g., Lambda, EC2, S3, CloudFormation, Step Functions)Write clean, efficient, and maintainable code following best practices and coding standardsLeverage Claude Code, GitHub Copilot, and other GenAI tools as primary productivity accelerators throughout the full software development lifecycle (SDLC), including code generation, refactoring, debugging, test creation, documentation, and code review supportContinuously evaluate and adopt emerging AI-assisted development tools to improve team velocity and code qualityContribute to team best practices and guidelines around responsible and effective GenAI usage, demonstrating measurable productivity gains through intentional and disciplined AI tool integrationPerform unit, integration, and non-functional testing using tools like Jest, Playwright, and Bruno, leveraging AI-assisted tools to accelerate test coverage generation and quality assurance workflowsParticipate in sprint planning, estimation, and peer-level code reviewsCollaborate with stakeholders, including product managers and designers, to address technical issues and support infrastructure needsMentor junior developers on both engineering fundamentals and effective GenAI usage practices, and contribute to team knowledge sharing and continuous improvement initiativesRequirements3+ years of experience in full stack software developmentExpertise in back-end development with Java, Node.js, and Nest.jsProficiency in front-end development using Angular and TypeScriptBackground in AWS cloud services, including Lambda, EC2, and S3, as well as CloudFormation and EKSSkills in working with databases such as DynamoDB, PostgreSQL, and DB2 (legacy)Familiarity with monitoring tools like Splunk and HoneycombCompetency in testing frameworks such as Jest, Playwright, and BrunoProficiency in AI-assisted development tools, including Claude Code (agentic development, refactoring, architecture support) and GitHub Copilot (inline code completion and SDLC integration), with continuous evaluation and adoption of emerging GenAI toolsDemonstrated AI-forward mindset, embracing GenAI tools as essential engineering instruments and staying current with the rapidly evolving AI tooling landscapeCapability to quickly learn and adopt new technologies like Angular and adapt to evolving project and tooling needsStrong analytical and troubleshooting skills with the ability to navigate ambiguity and resolve complex issues — with and without AI assistanceExcellent communication skills in English, with the ability to articulate technical concepts clearly in client-facing roles, collaborate effectively with cross-functional teams, and ensure high-quality deliverables with a focus on precision, scalability, and security, including critically evaluating AI-generated outputWe offerWe 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 exclusivelyEPAM 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.