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Senior · Staff · Principal Frontend Engineer

Lightyear AI Inc - San Francisco | OnSite

Posted Jun 12, 2026

Benefits

Parental leave
Not verified
Non-birth-parent leave
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Family-building benefits
  • Fertility benefits: Not verified
  • Adoption assistance: Not verified
  • Surrogacy assistance: Not verified
Mental health support
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Relocation assistance
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Childcare support
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Learning budget
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Verification
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Salary
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401(k) match
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Market context

U.S. role benchmark (BLS OEWS)
$116,543 U.S. median for this role
Projected growth (BLS Employment Projections)
+9.8% - Much faster than average

Matched to SOC 15-1252 - Software Engineering aggregate by role bucket.

Source: U.S. Bureau of Labor Statistics, OEWS, May 2024 and Employment Projections, 2024-2034.

Role

Role function
Engineering From the posting source checked Jun 20, 2026
Seniority
Principal From the posting source checked Jun 20, 2026
Work mode
Onsite From the posting source checked Jun 20, 2026
In-office days
5 days From the posting source checked Jun 20, 2026

Schedule

Shift type
Not verified
Weekend work
Not verified

Application

Cover letter
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Assessment
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Deadline
Not stated

Where they hire

State eligibility is not yet verified.

About this role

Senior · Staff · Principal Frontend Engineer San Francisco | OnSite Senior / Staff / Principal Frontend Engineer Location: Onsite San Francisco We have multiple startups interested in talent. Here is a generic summary. Instead of a perfect job description, we present talented individuals to companies and allow them to share how that talent fits in the organization. A Front-End Developer is responsible for building the user-facing parts of websites and web applications, ensuring a seamless and visually appealing user experience. They translate designs into functional code using HTML, CSS, and JavaScript, and may also utilize frameworks and libraries. Key Responsibilities: • Develop and implement user interfaces: Front-end developers create the visual elements of websites and applications that users see and interact with. • Translate designs into code: They take design mockups and wireframes and translate them into functional code using HTML, CSS, and JavaScript. • Build interactive elements: They create interactive features and animations to enhance the user experience. • Ensure cross-browser compatibility: They make sure the website or application functions correctly across different web browsers and devices. • Optimize page load times: They optimize code for speed and efficiency, ensuring a fast and smooth user experience. • Collaborate with back-end developers: They work closely with back-end developers to integrate the front-end with server-side logic and databases. • Maintain and update existing websites and applications: They may be responsible for fixing bugs, implementing new features, and maintaining existing code. • Follow industry best practices: They stay up-to-date on the

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