Senior Software Engineer

| Brooklyn
Who We Are
We are a team of engineers and medical experts united in our mission to improve healthcare. Our team operates out of Brooklyn, NY. Originally founded in Silicon Valley in 2015, Call9 just closed a $24M Series B financing round and we're growing fast.
Our Product Saves Lives
Our telemedicine platform connects doctors and patients via a web application that provides physicians with real-time diagnostic information. We connect patients to physicians within 1 minute, and in a medical emergency, this speed saves lives.

Who You Are

  • You love mentoring and growing other engineers, and have experience in seeing projects fail and succeed.
  • You care about why you're building software, and want to work on a platform that impacts people directly.
  • You are a strong engineer: No matter what languages you know or where you learned them, you are an authority in the fundamentals of writing efficient and elegant code.
  • You want to save lives and change the face of medicine.
  • You are able to clearly communicate technical implementations to other engineers.

Technologies We Use

  • Ruby on Rails
  • PostgreSQL
  • Javascript (React/Redux)
  • Android / Java
  • HL-7 Interfaces


  • BS degree in computer science or equivalent
  • 5+ years of software development experience

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

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Technology we use

  • Engineering
    • JavaLanguages
    • JavascriptLanguages
    • RubyLanguages
    • ReactLibraries
    • ReduxLibraries
    • Ruby on RailsFrameworks


Call9 is located in Industry City, a quickly growing innovation hub filled with talented and creative companies.
34 35th Street, Suit #4AS, Brooklyn, NY 11226

Insider's spotlight

Perks of working here

Casual Dress
Company Equity
Dental Benefits
Generous PTO
Health Benefits
Pet-Friendly Office
Vision Benefits
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