Senior Staff AI & Agentic Systems Engineer

Responsibilities

• Architect agentic systems from zero, including multi-agent frameworks and orchestration layers
• Balance rapid prototyping with long-term architectural sustainability
• Orchestrate and optimize various commercial and open-source LLM workflows
• Lead the use of advanced AI coding tools to maximize engineering velocity
• Implement rigorous frameworks for benchmarking, prompt engineering, and agent evaluation
• Set engineering standards and mentor other engineers

Requirements

• 7+ years of professional software engineering experience
• 2+ years of hands-on production experience building autonomous workflows and agentic systems
• Deep familiarity with LLM orchestration frameworks like LangChain, LangGraph, CrewAI, or AutoGen
• Proficiency in Python or Go
• Experience with distributed backend systems
• Ability to thrive in early-stage startup environments with high ambiguity
• Everyday proficiency with AI coding tools like Cursor or Copilot

Preferred Qualifications

• Experience building developer-facing products, SDKs, or open-source libraries
• Prior contributions to open-source AI or agent frameworks
• Experience with vector databases and RAG at scale

About the Company

Mozilla is a non-profit-backed technology company dedicated to keeping the internet open, accessible, and built for people. Through pioneering brands like Firefox, Mozilla works to shape the next generation of technology with a focus on AI, security, and privacy.