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Counsyl Jobs

Software Engineer

South San Francisco, CA, USA

About Counsyl

Our goal is to make the human genome practically useful for life-altering decisions.

We've invented the Counsyl Test, a breakthrough diagnostic intended for parents planning to start a family. The test won the Wall Street Journal Innovation Award for Medicine, was named one of Scientific American's "Top 10 World Changing Ideas," and was featured in the New York Times. Our test is now prescribed by physicians for more than 3% of all births in the United States.

The cost of sequencing human genomes is plunging - over 5x faster than the cost of computing; the potential impact on preventive healthcare and the medical landscape is boundless. The science is there but the scale isn't. That's where Counsyl comes in. We are building the technology platform to make genomics useful and accessible to everyone.

Software is at the heart of Counsyl

The vast majority of our operations are powered by our own custom-built infrastructure on a Python/Django/Postgres stack, from ordering to lab processing to billing. We’re building new tools, new workflows, and new infrastructure to solve the challenging problems of a technology startup involved with not just bits, but also interconnected physical components like lab robotics and patient samples.

Don’t be intimidated if you don’t have a genomics background; solving these problems fundamentally requires software solutions. We’re looking for the best and brightest software engineers — strong generalists with solid CS fundamentals and practical software engineering intuition — to help us scale up genomics to billions of users.


  • BS, MS or PhD in Computer Science or equivalent experience
  • Strong software engineering fundamentals: design, testing, version control
  • Significant independent programming experience as demonstrated by a GitHub account, personal web page, or prior experience.

We like to see experience with

  • Python, Django, CoffeeScript, Backbone.js, Bootstrap, HTML5, CSS
  • NumPy, SciPy, scikit-learn
  • Relational database systems, such as PostgreSQL
  • Unix, Git, and other command line tools

Perks and Benefits

  • Competitive compensation and benefits
  • Generous equity package in a fast-growing startup
  • Catered meals every day plus a fully stocked kitchen
  • On-site gym access to work it off
  • Dry cleaning and laundry service