Senior Backend Engineer (Staff)

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

Staff Plus 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

Company stage

Early 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 Backend Engineer (Staff) San Francisco | OnSite We're building the future of enterprise B2B SaaS with AI agents. We operate at the scale of our customers with 1% of the resources. That requires precision, good judgement, and a sense of daring. We care as much about model productivity as we do human productivity. As a software architect, you're responsible for both. We work exclusively with AWS Serverless products (Lambda, Step Functions, RDS Aurora). We're obsessed with scaling without toil. We love AWS CDK. We really, really love it. We work in Typescript and a tiny amount of Python, but we try not to be precious about these things. Responsibilities - Design and build scalable, high-performance infrastructure. - Design architectures that allow both engineers and language models to quickly create, test, and deploy application code. - Create reliable monitoring, logging, and alerting systems to ensure platform stability and performance - Mentor teammates and lead technical decision-making across the organization - Collaborate with AI and product teams to translate complex requirements into elegant technical solutions - Drive engineering best practices, including code reviews, testing strategies, and documentation - Use codegen models to move 10x faster than you did two years ago About you - You love language models. - You have the patience to be rigorous. - You act like an owner in everything you do. - People tell you you pick things up unusually quickly. - You love the weird little details of life in our customer's companies. - You

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