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Fullstack Developer – Backend Background

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Astek

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Location:
Poland , Warsaw

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Contract Type:
Not provided

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Salary:

Not provided

Job Description:

We are currently looking for a candidate for the position of Fullstack Developer(he/she) for our client from the biotechnology industry. At the Engineering Competence Center, we deliver services and projects for the Automotive, Rail, and Oil & Gas sectors.

Job Responsibility:

  • Backend Architecture: Design, develop, and maintain scalable and robust server-side applications using NestJS and Node.js (v18+)
  • Frontend Development: Build and maintain responsive, high-performance user interfaces using React
  • Graph Data Management: Design and manage complex data models in Neo4j, writing efficient Cypher queries
  • API Development: Develop, document, and maintain secure, well-structured RESTful APIs, as well as integrate third-party services and external systems
  • System Integration: Ensure smooth communication between backend services, frontend applications, and external APIs
  • DevOps & Tooling: Manage project dependencies and development workflows using npm or yarn, and support reliable deployment processes
  • Code Quality & Best Practices: Participate in peer code reviews, write unit and integration tests, and ensure adherence to coding standards and best practices

Requirements:

  • Extensive experience with Node.js (v18 or later) and the JavaScript/TypeScript ecosystem
  • Strong understanding of NestJS, including modules, providers, controllers, and middleware
  • Proven experience building complex single-page applications (SPAs) using React, including tools such as Hooks, Context API, or state management libraries
  • Hands-on experience with Neo4j (Desktop or Server) and strong proficiency in Cypher
  • Solid background in RESTful API design and experience integrating various external APIs and third-party services
  • Comfortable working with modern development tools, including Git, NestJS CLI, and package managers such as npm or yarn
What we offer:
  • Long-term collaboration
  • Technical training, certifications, and skills development
  • Competence Center mentoring
  • Clear career path
  • Employee benefits package (Multisport, private healthcare, life insurance)
  • Friendly working atmosphere, team-building events, and team-building meetings

Additional Information:

Job Posted:
March 18, 2026

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