# Senior Principal Software Engineer, AI Agents (Dublin, Ireland) at Toast

> The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday. This is one job from the board.

> Responsibilities: - Lead the architectural vision and techni

- **Company:** Toast (https://jobs.trythestack.co/companies/toast)
- **Location:** London, England, United Kingdom
- **Work arrangement:** On-site
- **Employment type:** Full-time
- **Experience level:** 10+ years
- **Visa sponsorship:** Offered, according to the listing
- **Key skills:** AI Agents, Distributed Systems, Fullstack Software Development, SaaS, AWS, Technical Architecture, Agentic Development, LLMs, ML Models, Apache Camel, Apache Pulsar, Event-Driven Architecture, Spec Driven Development, Workforce Management, Restaurant Operations, Technical Leadership
- **Posted by employer:** 2026-05-20
- **Added to The Stack:** 2026-05-20
- **Status:** May no longer be active (posted more than 60 days ago)
- **Apply:** https://careers.toasttab.com/jobs?gh_jid=7946321 (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/senior-principal-software-engineer-ai-agents-dublin-ireland-toast

## About the role

Responsibilities:
- Lead the architectural vision and technical strategy for AI agents in the Team (Fintech) area.
- Own design-to-production delivery: prototype, implement, and operate agent products in collaboration with product and engineering leaders.
- Drive adoption of agentic and spec-driven development practices and define repeatable agent patterns across the company.
- Collaborate with other senior engineers to build the agent ecosystem, integration points, and operational tooling.
- Mentor senior engineers and technical leaders; communicate architecture and trade-offs to executives and product stakeholders.

Requirements:
- 15+ years designing and building highly scalable, mission-critical distributed and full-stack systems.
- 10+ years of experience building and operating SaaS products; AWS-hosted experience preferred.
- Practical experience with coding agents or agentic development and strong interest in autonomous systems.
- Proven ability to set technical architecture at a company or product-line level and to influence executive decisions.
- Hands-on debugging, systems reasoning, and strong cross-functional collaboration skills.
- Experience with LLMs/ML models, enterprise integration (e.g., Apache Camel), or event-driven platforms (e.g., Apache Pulsar) is a strong plus.

## Responsibilities

Drive the architectural vision and implementation of AI agents for Toast's Team area within the Fintech line of business. Lead technical strategy, mentor leadership, and collaborate with product owners to deliver agentic products from design to production.

## Requirements

Requires over 15 years of experience in scalable distributed systems and 10+ years in AWS-hosted SaaS products. Candidates must have experience with coding agents and a demonstrated ability to influence executive-level technical architecture.

## FAQ

- **Is this Senior Principal Software Engineer, AI Agents (Dublin, Ireland) role still open?** It was posted on 2026-05-20. Listings more than 30 days old may no longer be active, so check Toast's site before applying.
- **Does Toast offer visa sponsorship?** This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on Toast's site.
- **Where is this role located?** The listing gives the location as London, England, United Kingdom. It is marked on-site.
- **What skills does this role ask for?** The listing names: AI Agents, Distributed Systems, Fullstack Software Development, SaaS, AWS, Technical Architecture, Agentic Development, LLMs, ML Models, Apache Camel, Apache Pulsar, Event-Driven Architecture, Spec Driven Development, Workforce Management, Restaurant Operations, Technical Leadership.

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## Notes for agents

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