Full Stack JavaScript Engineer (Kaunas)

About the role

We are seeking an experienced Full Stack JavaScript Engineer to join our Kaunas team. You will be responsible for designing, developing, testing, and maintaining both front‑end and back‑end applications using modern JavaScript technologies.

Key responsibilities

• Develop and maintain front‑end applications with React, TypeScript, HTML and CSS.
• Design and implement back‑end services using Node.js, GraphQL and related middleware.
• Build and integrate RESTful APIs and messaging systems.
• Apply Domain‑Driven Design, CQRS and Clean Architecture principles.
• Write unit and integration tests and participate in code reviews.
• Collaborate with engineers, product managers and stakeholders to deliver new features.
• Take part in agile ceremonies such as sprint planning, stand‑ups and retrospectives.
• Continuously improve code quality, development practices and engineering processes.

Required profile

• 5+ years of professional software development experience.
• Strong knowledge of JavaScript and TypeScript.
• Solid experience with Node.js and React.
• Good understanding of HTML, CSS and SQL.
• Practical experience with DDD, CQRS and Clean Architecture.
• Ability to work independently and take ownership of technical solutions.

Required skills

• JavaScript
• TypeScript
• Node.js
• React
• HTML & CSS
• SQL
• GraphQL
• RESTful APIs
• Message brokers
• ORM technologies
• Domain‑Driven Design (DDD)
• CQRS
• Clean Architecture
• CI/CD pipelines (nice to have)
• Vanilla JavaScript, V8, WebAssembly (nice to have)

What we offer

• Hybrid work model with up to 3 remote days per week.
• Competitive salary of €4,485‑€5,950 gross per month.
• Additional health insurance and gym subscription coverage.
• Professional development opportunities, including Udemy access.
• Modern office, team events and other company benefits.