Senior Backend Engineer

Benefits

Parental leave

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Non-birth-parent leave

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Family-building benefits

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• 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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Application

Cover letter

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Assessment

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Deadline

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Where they hire

State eligibility is not yet verified.

About this role

Senior Backend Engineer San Francisco, California | OnSite SENIOR BACKEND ENGINEER (PYTHON) At some point in the future, every business will answer their phone with voice AI. We are making sure that when they build that AI agent, the experience of doing so doesn't suck. We're growing incredibly fast and need someone who thrives in a dynamic, high-pressure environment to work in our engineering. This role is critical to the success of our company. We're looking for someone who is roll up their sleeves and dig in, and double down when things get tough. We're looking for someone who is highly technical, driven, and fun to work with. You'll be working directly with our engineers, customers support team, and product team. NOTE: This is an engineering position. You will be writing code, a lot of it and it will be a lot of work… if you're looking for a cushy corporate job where nothing get done, I recommend checking out some of our competitors. If you're looking to be a part of a winning team and to make a real difference read on. This role is in office 5 days a week in San Francisco. YOUR DAY TO DAY: - Build and maintain Python-based state systems that drive what the voice AI says and does across complex, real-time conversations. - Integrate and orchestrate multiple LLM providers, including prompt design, tool/function calling, routing, and fallbacks. - Write clean, maintainable, high-performance Python code, leveraging asyncio, OOP, and best practices. - Write automated

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