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

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• 🏢 Toast has 13 jobs here, 13 with visa sponsorship see all
• 🛂 Skilled Worker visa. Standard minimum salary: £41,700 a year guide
• 💡 No salary shown. Ask Toast if it is above the minimum.

Updated 2026-11-05, from our data and official sources.

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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.

Key skills

• AI Agents — in 41 other listings on The Stack
• Distributed Systems — in 342 other listings on The Stack
• Fullstack Software Development — in 1 other listing on The Stack
• SaaS — in 49 other listings on The Stack
• AWS — in 802 other listings on The Stack
• Technical Architecture — in 18 other listings on The Stack
• Agentic Development — in 5 other listings on The Stack
• LLMs — in 80 other listings on The Stack
• ML Models
• Apache Camel
• Apache Pulsar
• Event-Driven Architecture
• Spec Driven Development
• Workforce Management
• Restaurant Operations
• Technical Leadership

On The Stack (as of 2026-11-05)

• Toast has 12 other listings on The Stack, 12 of them marked as offering visa sponsorship.
• 214 visa-sponsored jobs in the United Kingdom on The Stack, posted in the last 60 days.
• 195 visa-sponsored software engineer jobs in Europe on The Stack, posted in the last 60 days.

Frequently asked questions about Toast

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.