> Markdown version of [/jobs/ext/4417309-staff-principal-software-engineer](https://www.wearedevelopers.com/jobs/ext/4417309-staff-principal-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Staff/Principal Software Engineer - **Company:** AI-Assisted High Performance Coaching, LLC - **Location:** San Francisco, CA, United States - **Experience:** Expert - **Salary:** $217,000.0 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Big Data, Databases, Information Engineering, Cursor, Distributed Systems, Elasticsearch, Python (Programming Language), MongoDB, Ruby on Rails, Microsoft Copilot, Large Language Models, Backend, Terraform - **Published:** October 12, 2026 - **Apply:** https://www.juju.com/job/16_941aaec51 ## About the Role What we are looking for * 8 to 15 years in backend or full-stack engineering, building large-scale distributed systems * A track record of owning and operating systems in production at serious scale, serving 100,000+ users * Clear upward trajectory in scope rather than a plateau at senior level * Strong system design instincts for large-scale data and distributed systems * Hands-on experience with AI-assisted development tools such as Copilot or Cursor Nice to have * Experience building LLM-based or agent-centric products * Familiarity with Ruby on Rails, Python, MongoDB, or Elasticsearch * Infrastructure-as-code experience with Terraform * A strong database or data engineering background that has broadened into distributed systems ## Description This is a senior individual contributor seat with unusual reach. You will own technical direction for a significant area of the platform, either large-scale distributed systems or agent-centric AI products, and work hand-in-hand with VPs and C-suite engineering leaders on the highest-priority problems in the company. What you will do * Own the architecture and technical direction for a significant area of the platform, either large-scale distributed systems or agent-centric AI products * Lead the hardest technical problems, making the build, buy, and cost tradeoffs that shape the entire engineering organization * Set standards and patterns that raise the bar across multiple teams and multiply the output of the engineers around you * Partner with engineering and product leadership to keep technical direction tied to business outcomes * Use AI-assisted development as a first-class part of how you work, leaning on agents for design, investigation, and implementation * Float across the highest-priority projects as the go-to individual contributor in the room