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Delphina · IT - Software Development

Backend Engineer

United States, SF Bay Area · Job Posted February 21, 2026
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Job Description

We're looking for an experienced Backend Software Engineer to join as a founding team member of Delphina. As one of our key early hires, you will partner closely with our early team on the direction of our product and drive critical technical decisions. You will have a broad impact over the technology, product, and our company's culture.

Job Responsibility

  • Architecting, building, and deploying the systems and services underlying our platform
  • Partnering with our cross functional team of scientists, researchers, and engineers to transform how machine learning is done
  • Ensuring that our systems are reliable, secure, and worthy of our customers' trust

Requirements

  • Experience with leading and building production systems to deliver on major product initiatives
  • Proficiency in at least one programming language commonly used within backend systems, e.g. Go, Python, Scala, or Java
  • Energy and ambition to build a product that is surprisingly good in surprising ways
  • Intrinsic desire to always be improving our product and yourself
  • Growth mindset to both stay ahead of the curve and pick up whatever knowledge you're missing to get the job done

Nice to have

  • Experience with large-scale processing technologies and frameworks, such as Spark and Flink
  • Experience working directly on machine learning – either by partnering with scientists and engineers who are building models, or by building models yourself
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