Backend-Leaning Product Engineer

San Francisco on site Until 8/21/2026 First posted June 4, 2026 Last posted June 4, 2026
Job description

About the Role

Join a small, high-ownership product team at an early-stage B2B SaaS startup as a backend-leaning product engineer. You'll own customer-facing features end-to-end, navigate messy integrations and legacy systems, and make product and engineering trade-offs with speed and strong judgment. This is a role for someone who thrives in ambiguity, moves fast, and cares deeply about shipping real products that customers use.

What You'll Do

  • Own features end-to-end — from design through shipping and iteration — with minimal PM oversight.

  • Build and maintain backend systems, APIs, data models, and automation pipelines.

  • Integrate with external tools, legacy systems, and third-party services.

  • Design workflows and orchestration for AI/automation-driven product features.

  • Debug production issues and exercise strong engineering judgment under pressure.

  • Collaborate closely with founders, customers, and cross-functional stakeholders in a hybrid San Francisco setting.

  • Balance full-stack work when required, with a clear emphasis on backend ownership.

What We're Looking For

Required:

  • Backend-focused software engineering with hands-on experience designing, implementing, and shipping customer-facing features.

  • Demonstrated ownership of the full feature lifecycle — ideation, implementation, and iteration based on customer feedback.

  • Track record of shipping real products, ideally in 0-to-1 or ambiguous, fast-moving environments.

  • Strong cross-functional collaboration and communication skills.

  • Must be legally eligible to work in the US without employer sponsorship.

  • Based in San Francisco or willing to relocate; hybrid/in-office presence required.

Nice to Have:

  • Experience with applied AI, agentic workflows, RAG pipelines, or LLM-enabled features.

  • Python proficiency (modern web/backend stacks considered — engineering quality matters more than specific stack).

  • Systems integration experience with external APIs and legacy platforms.

  • Early-stage startup experience or founding engineer background.

Not a fit if you are: frontend-only, data/internal-tools-only, pure DevOps/SRE without product ownership, pure research ML without shipping experience, or primarily motivated by corporate titles.

Compensation & Benefits

  • Base salary: up to $275,000 depending on experience.

  • Equity: meaningful equity package.

  • No visa sponsorship available.

Location

San Francisco, CA — hybrid/on-site. Candidates must be based in SF or willing to relocate.

About this role

Summary

Design, build, and maintain backend systems and API integrations in a fast-paced startup environment.

Job title

Backend-Leaning Product Engineer

Experience level

Industry

software

Location requirements

San Francisco, hybrid; remote not available

Salary

$0k–$275k

Management role

No

Skills & keywords

Required skills

software engineeringfull feature lifecycleshipping productscommunicationeligible to work in US

Preferred skills

AIagent workflowsRAG pipelinesLLMPythonAPI integrationsystems integrationstartup experience

Specializations

backendAPIsdata modelsautomationAI
Locations

Structured locations inferred from the posting.

San Francisco, CA, USA

On-site City