Senior Principal Software Engineer, Team Agent

Toast creates technology to help restaurants and local businesses succeed in a digital world, helping business owners operate, increase sales, engage customers, and keep employees happy.

Your mission is to drive architecture, technical strategy, and implementation of AI agents for Toast's Team area which is part of the Fintech line of business. You will be one of the most senior technologists in the line of business. The Team area is mission‑critical, managing staff and optimizing labor for our restaurants. Beyond agent development, you will influence how software is built across Toast through adoption of bleeding‑edge spec‑driven development and other paradigms.

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• Develop and drive an architectural vision to support the ambitious goals for agents and agent development
  
• Be an active participant and authoritative technical voice in FinTech product strategy discussions
  
• Partner with the Team Management Director of Engineering and Sr. Director of Product to successfully deliver Team agent products from design to production
  
• Work closely with other Senior Principal Engineers to further the agent patterns and ecosystem across Toast as a whole
  
• Evolve more efficient ways of working through agents and spread them across Toast
  
• Work directly with the product manager for the Team Agent space, collaborating to drive vision
  
• Be hands‑on and actively participate in development on the Team Agent
  
• Mentor and develop technical leadership across Team and Fintech
  

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• 15+ years of experience designing and building highly scalable, mission‑critical distributed and full‑stack software systems
  
• 10+ years of experience building and operating SaaS products, ideally AWS hosted
  
• 1+ years of experience using the latest in coding agents
  
• A strong desire to lean all in on agentic development practices
  
• Passion for building autonomous agents
  
• Demonstrated ability to drive technical architecture for a company or highly scalable line of products
  
• A desire to work not only with technologists but also product owners and business leaders
  
• Ability and desire to draw big lines and boxes on a whiteboard paired with the ability to dig into the code under load
  
• Ability and desire to communicate and influence at the executive level
  

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• Experience designing agentic products
  
• Experience building systems that leverage LLMs and other ML models
  
• Experience with enterprise integration using Apache Camel
  
• Experience architecting event‑driven distributed systems using Apache Pulsar
  
• Experience defining test, build and deploy strategies
  
• Solid understanding of workforce management
  
• Solid understanding of restaurant operations
  

This is a hybrid role requiring in‑office collaboration two days per week in our Dublin office.

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