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Senior Software Engineer

Arch Systems Inc. - San Francisco | OnSite

Posted Jun 10, 2026

Benefits

Parental leave
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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
Senior 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
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Weekend work
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Company

Equity
Offered From the posting source checked Jun 20, 2026

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 Software Engineer San Francisco | OnSite 💡 ABOUT ARCH Arch powers frontline industries with cutting-edge AI. The US $800 billion frontline-services sector underpins the nation, yet many of these critical businesses still rely on spreadsheets, outdated software, and paper forms. We're driving energy resilience, economic strength, and long-term prosperity by bringing cutting-edge AI to the frontline services that need it most. We're backed by Coatue, Floodgate, Gigascale, ReGen, MCJ Collective, and the founders of Aurora Solar. Competitive salary + significant equity package based on experience. 🎒 Role Overview: We're hiring a Software Engineer to join our tight-knit engineering team of four. In this high-impact and fast-paced role, you'll collaborate directly with our founders to build products at the cutting edge of technology and sustainability. This role requires in-person collaboration 3-4 days per week at our San Francisco office (WeWork or office on Union Square). If you're motivated by solving challenging problems, have a passion for elegant code, and want your work to have a meaningful impact, we'd love to hear from you. 🏃 What You'll Do: - Build and enhance core product features, from backend logic to intuitive user interfaces. - Own your work end-to-end, from concept through deployment. - Collaborate closely with our founders and engineering team to define and execute our technical roadmap. - Experiment and innovate with new technologies, particularly in AI/ML, to enhance our offerings. 📚 Qualifications: Must-haves: - Startup Experience: 5+ years software engineering experience in a fast-paced startup environment. - Technical Stack: Proficiency

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