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Senior Frontend Engineer

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80Twenty

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Location:
United States , San Francisco

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Contract Type:
Not provided

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Salary:

200000.00 - 300000.00 USD / Year

Job Description:

This is a once in a life time opportunity to join what is soon to be a unicorn pharma / health startup. This role offers top of the market salary range as well as a very strong equity package. You’ll play a key role in crafting best-in-class web and mobile experiences for both customers and providers.

Job Responsibility:

  • Work within a small team of Project Managers, designers, and back-end engineers to deliver seamless, intuitive user experiences
  • Help the team make long-term decisions on a quickly scaling projects
  • Lead the development, optimization and expansion of web and/or mobile applications (React, React Native, TypeScript)
  • Own key architectural decisions, mentoring engineers, and elevating front-end experience across the company
  • Influence engineering culture, contributing to the innovation and technical ownership within the team

Requirements:

  • 3+ years of front-end development experience
  • Expertise in React and React Native
  • Some exposure to Kotlin / Swift (e.g. Apple Health Kit React Native Integrations)
  • Experience leading technical initiatives and high-performance web and mobile applications
  • Strong knowledge of modern front-end tooling
  • Expertise in state management strategies and optimizing complex UX interactions in applications (data heavy)
  • Excellent documentation, organization, and communication skills

Nice to have:

  • Startup mindset
  • Willingness to go beyond core responsibilities
What we offer:

Equity package

Additional Information:

Job Posted:
January 11, 2026

Employment Type:
Fulltime
Work Type:
On-site work
Job Link Share:

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