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June 17, 2026

Senior TypeScript Engineer

Senior • Remote

25,000 - 25,000 PLN

Warsaw, Poland

We Are:

RTB House is a next-generation performance demand-side platform (DSP) that uses proprietary Deep Learning AI algorithms to help brands grow. The company drives performance using Deep Learning across the entire purchase funnel and offers end-to-end Deep Learning-powered AdTech products and solutions to maximize conversion, drive customer acquisition, create engagement, and fuel long-term demand for a global client base.

Description:

As a Senior TypeScript Engineer, you will design, develop, and maintain internal tools and libraries that support teams across the organization. You will work with modern frameworks and libraries, shape the tech stack for each project, and solve complex development challenges requiring creativity and innovation.

Responsibilities:

  • Develop and maintain internal tools using various technologies.
  • Build web applications (TypeScript) that support team workflows.
  • Design, develop, and maintain internal TypeScript libraries.
  • Select and adapt suitable libraries and frameworks for each project.
  • Solve complex development challenges with a problem-solving approach.

Desired Experience:

  • Strong knowledge of TypeScript and Node.js.
  • Experience with NestJS.
  • Hands-on experience with React / Next.js.
  • Experience with Google Cloud Platform (GCP).
  • Experience with Docker.
  • Minimum of 5 years of professional experience with the above technologies.
  • Knowledge of OOP principles, clean code, and clean architecture.
  • Familiarity with design patterns and ability to apply them.
  • Experience in writing unit tests and end-to-end tests.
  • Very good knowledge of Git and Linux.
  • Solid understanding of SQL.
  • Communicative level of English.
  • Independence, proactivity, and eagerness to learn and grow.

Nice to Have:

  • Knowledge of Google Analytics or Google Tag Manager.
  • Previous experience in the AdTech/Advertising industry.

Benefits:

  • Opportunity to contribute to a high-impact online project with global reach.
  • Hands-on experience in RTB and innovative online advertising solutions.
  • Development-focused tasks with strong emphasis on continuous learning and skill improvement.