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Senior JavaScript Engineer

TechBiz Global GmbH

Warsaw, Warmińsko-Mazurskie, Poland

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At TechBiz Global, we are providing recruitment service to our TOP clients from our portfolio. We are currently seeking a Senior JavaScript Engineer to join one of our clients' teams. If you're looking for an exciting opportunity to grow in a innovative environment, this could be the perfect fit for you.

What You Will Do:

  • Work on specific problem spaces critical to the client’s needs, with opportunities to switch teams as both you and our fast-paced business evolve.
  • Utilize cloud technologies, primarily AWS, to develop, deploy, and scale services.
  • Participate in the full project lifecycle _ from concept and design to deployment and ongoing maintenance - ensuring timely and high-quality delivery.
  • Collaborate closely with cross-functional teams across the client’s organization to align on integrations and optimize overall system architecture.
  • Drive a strong engineering culture focused on code quality, best practices, innovation, and continuous improvement.
  • Proactively identify, troubleshoot, and mitigate potential issues in distributed and financial systems.
  • Work in small, autonomous teams with short release cycles and a strong sense of ownership.

Who You Are:

  • Proficient in JavaScript, with strong hands-on experience in backend development using Node.js (e.g., Express, NestJS, or similar frameworks).
  • Experienced with PostgreSQL and designing, architecting, and building reliable, scalable backend systems.
  • Comfortable working with cloud technologies, particularly AWS (e.g., EC2, Lambda, S3, RDS, etc.).
  • Familiar with distributed systems and financial-domain challenges, with the ability to anticipate and address potential issues early.
  • A strong communicator who can effectively collaborate with engineers, product managers, and other stakeholders across teams.
  • Fluent in verbal and written English, with the ability to clearly explain technical concepts.

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Original posting on TechBiz Global GmbH's site ↗

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