Senior Node.js Developer @ Antal

2 days ago

Kraków Warszawa, Czech Republic Antal Full time
  • Minimum 5 years of software development experience, including at least 3 years with Node.js.
  • Strong skills in Node.js, TypeScript, and frameworks such as NestJS and Fastify.
  • Experience with MongoDB, Redis, and AWS S3.
  • Solid understanding of event-driven development, design patterns, and best practices.
  • Strong background in performance optimization, monitoring, and scalable application design.
  • Experience with CI/CD pipelines, Git/GitHub, and tools like Babel.
  • Ability to decompose complex tasks into actionable pieces and work independently.
  • Proactive attitude and strong desire to learn and grow professionally.
  • English proficiency sufficient for reading and writing technical documentation.

Nice to have:

  • Experience in digital advertising / programmatic advertising.
  • Familiarity with React.js and NoSQL databases.
  • Comfortable working in Unix/Linux environments and writing bash scripts.
  • Knowledge of Jenkins and Agile methodologies (Scrum/Kanban).
  • Experience with monitoring tools such as Datadog.
  • Familiarity with testing frameworks (Jest, Jasmine, Karma, Cypress) and writing unit, functional, and integration tests.

Senior Node.js Developer 

Location: Cracow or Warsaw (hybrid – once a month from the office)
Contract type: B2B
Rate: 100–150 PLN/h net + VAT
Workload: Full-time
Seniority: Senior

We are looking for an experienced Node.js Developer to join our dynamic team and contribute to building high-performance backend applications in the digital advertising space. If you are passionate about creating scalable, distributed systems and enjoy working with modern technologies in a collaborative environment, this role is perfect for you.

Why join us:

  • Work in a friendly, agile environment with access to a broad range of modern technologies.
  • Contribute to innovative projects in the fast-growing digital advertising / programmatic advertising space.
  • Opportunity to experiment with and implement R&D initiatives.
  • Flexible working hours (core hours 8–16 ± 1.5h) and mostly remote work, with monthly in-office meetings (Kraków/Warsaw).
  • Receive onboarding support, including a MacBook Pro and dedicated guidance.
  • Be part of a highly motivated, self-driven team focused on delivering high-quality, high-performance solutions.

If you love solving complex problems, building modern backend systems, and want to grow in a collaborative, innovative environment, we’d love to hear from you

,[Develop and maintain backend applications using Node.js and NestJS in a distributed architecture., Build, optimize, and maintain automated tests and monitoring tools to ensure the highest quality of software., Actively contribute to R&D initiatives, exploring new approaches and solutions to enhance the advertising ecosystem., Participate in the full software development lifecycle: from requirements gathering and design, through implementation, deployment, Collaborate closely with cross-functional teams and stakeholders to ensure high-quality, performant, and reliable solutions.] Requirements: Node.js, TypeScript, Nest.js, MongoDB, Redis, AWS S3, CD pipelines, Git, GitHub, Babel, React, NoSQL, Unix, Linux, Bash script, Jenkins, Kanban, Datadog, Testing, Jasmine, Karma, Cypress, Integration test

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