Staff AI Engineer — Core AI Stack, Scale & Equity

PromptQL; San Francisco (CA); Hybrid; USD 250,000 - 500,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Employee assistance programs

Retirement fund matching

Donation matching

Paid time off

Monthly self-care day

Stock options

Paid parental leave

Commuter benefits

Employee referral program

Job summary

PromptQL is hiring a Staff AI Software Engineer to build the technical backbone of our AI systems and products. You will work across the AI assistant, data engine, and runtime infrastructure, driving foundational capabilities at scale.

You will design, implement, and optimize production-grade features, collaborating with researchers and engineers to deliver reliable AI for Fortune1000 enterprises. This role blends coding, architecture, and technical leadership in a fast-paced startup environment.

Qualifications

• 6+ years of experience as a software engineer.
• At least 1+ year building AI or ML-powered systems.
• Designed and shipped complex distributed systems at scale.
• Experience with large language models (LLMs) in production.
• Fluent in Python and/or a systems language; comfortable across infra, APIs, and core product logic.
• Able to lead technically: write design docs, set direction, mentor engineers.
• Biased toward action with high autonomy; able to unblock self and others.
• Care about quality, safety, and performance; systems-level impact on product and users.
• Excited about foundational AI technology and enterprise applications.

Responsibilities

• Write production-grade code and contribute to architecture and design.
• Optimize performance, cost, and reliability of distributed systems.
• Shape infrastructure and runtime to support AI features.
• Collaborate across teams to deliver end-to-end AI solutions.
• Provide technical leadership and mentoring to senior engineers.

Skills

Software engineering

AI/ML systems

Distributed systems

LLMs production

Python

Systems language

Technical leadership

Autonomy

Quality & safety

Job description

PromptQL is hiring a Staff AI Software Engineer to build the technical backbone of our AI systems and products. You will work across the AI assistant, data engine, and runtime infrastructure, driving foundational capabilities at scale.

You will design, implement, and optimize production-grade features, collaborating with researchers and engineers to deliver reliable AI for Fortune1000 enterprises. This role blends coding, architecture, and technical leadership in a fast-paced startup environment.