Senior Backend Software Engineer (Python) - AI Company

dw sisters llc • San Francisco Bay Area
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AI Summary

Join a rapidly scaling AI company building next-generation intelligent agents. As a Senior Backend Software Engineer, you'll own major components of a Python-based backend architecture, partner with founders and senior leadership, and drive key architectural decisions.

Key Highlights
Build, scale, and optimize backend systems
Partner with founders and senior leadership
Drive key architectural decisions
Technical Skills Required
Python Backend systems
Benefits & Perks
Salary: $150K-$275K
Equity: 0.1-0.3%
Onsite Requirement: 5 days/week in San Francisco
Visa Sponsorship: Available

Job Description


About the Company



Our client is a rapidly scaling, venture-backed AI company building next-generation intelligent agents for a massive, legacy industry undergoing major digital transformation. With over $30M in recent funding from top-tier investors and exceptional year-over-year revenue growth, the company is positioned to reshape how critical commercial workflows are automated and optimized. The team includes engineers and founders from world-class tech organizations and research groups. This is an opportunity to join a deeply technical, collaborative environment and contribute directly to a product with real market impact.



Why You’ll Want to Join



  • Explosive Growth: Post–product-market fit with rapid customer adoption and multi-million-dollar enterprise traction.
  • Top-Tier Talent: Work alongside engineers and founders with experience at leading technology companies and AI research labs.
  • High Technical Ownership: You’ll own meaningful portions of the backend architecture and influence technical direction.
  • Market Impact: The industry served is a multi-trillion-dollar market with significant complexity—ripe for AI transformation.
  • Founder’s Mindset Environment: Ideal for engineers who want autonomy, responsibility, and exposure to company-building.


About the Role



DW SISTERS LLC is seeking a Senior Software Engineer (Backend) to join our client’s early-stage engineering team. This role is onsite in San Francisco and offers the ability to drive key architectural decisions, work directly with leadership, and build core systems powering sophisticated AI-driven workflows.



What You’ll Do



  • Build, scale, and optimize backend systems that support mission-critical AI products.
  • Own major components of a Python-based backend architecture.
  • Partner directly with founders and senior leadership on strategic technical decisions.
  • Operate with high autonomy in a fast-paced, iterative, high-output environment.
  • Contribute to an engineering culture centered on ownership, precision, and rapid problem solving.


What We’re Looking For



  • 4+ years of experience building production-grade software.
  • Strong experience with backend systems (Python preferred).
  • Clear, effective communication skills.
  • Bonus experience with:
  • B2B SaaS
  • Early-stage (0→1) product development
  • Above all: drive, grit, ownership, and a bias toward action.


Additional Details



  • Salary: $150K–$275K
  • Equity: 0.1–0.3%
  • Onsite Requirement: 5 days/week in San Francisco
  • Visa Sponsorship: Available
  • Team Size: ~20 and rapidly growing


Equal Opportunity Statement: We are committed to diversity and inclusivity in our hiring practices.


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