Senior Full-stack JavaScript Developer

On-siteSalary not specified
Hungary

Job Description, Responsibilities & Requirements

About the Position

We are looking for a Senior Full-stack JavaScript Developer to join our team in Hungary. In this role, you will design and deliver scalable full-stack applications while collaborating with cross-functional teams to bring high-quality user experiences to life.

This position offers a hybrid model of work, with 3 days per week working from the office located in Budapest.

Responsibilities

  • Design, develop and maintain scalable full-stack applications
  • Work with other project team members (UI designers, developers, system and testing engineers) throughout the product development, testing and implementation phases to ensure user interface integrity
  • Work with customers (project management, content editors) to implement the envisioned functionality
  • Provide estimates for how much time it will take to complete the defined layout /development tasks
  • Write clean, efficient and well-documented code following industry best practices
  • Document the implementation and work products
  • Observe the quality rules during the project, supply the QA Leader with upcoming ideas
  • Conduct code reviews and supervise other developers
  • Participate in SCRUM ceremonies and lead technical meetings
  • Stay up to date with emerging technologies and advocate for best practices in full-stack development

Requirements

  • 5+ years of relevant work experience
  • Advanced knowledge and experience in Typescript/JavaScript/CSS/HTML
  • Advanced knowledge and experience in Angular and Node.js
  • Strong knowledge and experience in TDD, Unit testing and performance testing
  • Knowledge and experience in Server-side rendering (Next.js, Angular Universal, NuXT)
  • Work experience with databases (SQL, NoSQL) and cloud technologies (Azure, GCP or AWS)
  • Have an overview of common application architectural patterns (microservices, microfrontend, BFF pattern)
  • Strong knowledge of programming paradigms (OOP and Functional Programming)
  • Good communication and problem-solving skills in English as well
  • Be dedicated to implementation of high-quality web user interfaces
  • Solid understanding of LLM concepts, prompt engineering techniques (one-shot/few-shot prompting), MCP fundamentals (tools/resources) and AI output evaluation/grading methodologies

Nice to Have

  • Hands-on experience with AWS Bedrock, AWS AgentCore, LangChain, LangGraph or similar AI agent orchestration frameworks and platforms

About the Company

EPAM Systems is a global software engineering and product development company, delivering digital platforms and large-scale software solutions to Fortune 500 companies.

Job Details

Company name:
EPAM
Location:
Hungary
Work Mode:
On-site
Posted on TheJob:
May 19, 2026
Last checked:
Jul 5, 2026
Posted on the source:
Jul 2, 2026
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