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CommIT

Middle Node.js Engineer

CommIT Warsaw, Masovian Voivodeship, Poland

Software Development · 501-1,000 employees

5 h ago
nodejs Mid (2-5 yrs) Full-time Poland
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About the role

Design, develop, and maintain scalable backend services and APIs using Node.js within a microservices architecture. Collaborate with cross-functional teams to optimize system performance, security, and reliability while resolving production issues.

What they look for

Node.js Backend Development SQL NoSQL Microservices Cloud Services API Development Data Modeling Performance Optimization Debugging System Architecture Scalability Security Problem-solving Analytical Skills

Requirements

Requires a bachelor's degree in Computer Science or a related field and 2–4 years of backend development experience. Candidates must have strong proficiency in Node.js, experience with SQL/NoSQL databases, and familiarity with cloud services.

Full description

The company is looking for a talented Backend Engineer to help build the infrastructure that secures the world’s software supply chains.

You’ll work alongside top-tier engineers to design and deliver high-performance, secure, and scalable systems. This role is ideal for someone who thrives in a fast-paced environment, enjoys solving complex technical challenges, and wants to build products that make a meaningful impact.

Responsibilities

  • Design, develop, and maintain scalable and reliable backend services and APIs.
  • Build high-performance systems capable of handling large volumes of data and traffic.
  • Develop and improve backend infrastructure using Node.js.
  • Work with both SQL and NoSQL databases, including data modeling and performance optimization.
  • Design and implement solutions within a microservices architecture.
  • Build and maintain cloud-based services and infrastructure.
  • Collaborate closely with product, engineering, and other cross-functional teams to deliver new features.
  • Troubleshoot, debug, and resolve complex production issues.
  • Improve system performance, reliability, scalability, and security.
  • Strong commitment to writing clean, maintainable, and high-quality code.

Requirements

  • Bachelor’s degree in Computer Science, Software Engineering, or a related field.
  • 2–4 years of experience in backend development, with a focus on building scalable applications and services.
  • Strong proficiency in Node.js.
  • Hands-on experience with database technologies, including both SQL and NoSQL databases.
  • Familiarity with cloud services and microservices architecture.
  • Experience working directly with customers or within a product-focused company/environment.
  • Excellent problem-solving and analytical skills.
  • Strong commitment to writing clean, maintainable, and high-quality code.

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