Principal Software Engineer - AI Pod (Dublin, Ireland) at Toast

✨ The Stack take on this Toast job

• 🏢 Toast has 13 jobs here, 13 with visa sponsorship see all
• 🛂 Visa: EU Blue Card. Salary: At least 1.5 times the national average annual salary (1.2 times in some cases) 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 full-stack design and delivery of AI-native solutions across product and platform initiatives
- Define and drive technical architecture from backend services and APIs to frontend and developer interfaces
- Build and integrate LLM-powered agents, tools, and workflows into product contexts
- Set and uphold engineering standards: code quality, testing, observability, and operational practices
- Mentor and grow engineers via design reviews, code reviews, and pairing
- Partner with cross-functional stakeholders to scope problems, align approaches, and deliver outcomes

Requirements:
- 10+ years designing and delivering scalable full-stack systems with demonstrated architectural leadership
- Experience building, deploying or operating LLM-powered agents or AI platform infrastructure
- Strong backend (Java/Kotlin or similar) and frontend (TypeScript/React or similar) skills
- Familiarity with prompt engineering, MCP/agentic frameworks, and AI coding assistants (e.g., Copilot)
- Bias for action, comfort with ambiguity, and strong system-design and mentoring skills
- Nice-to-have: A2A/multi-agent orchestration experience, ML infra or model evaluation exposure

Responsibilities

Lead the full-stack design and delivery of AI-native solutions and LLM-powered agents to solve complex problems across Toast's platform. Drive technical architecture, set engineering standards, and mentor other engineers through design and code reviews.

Requirements

Requires 10+ years of experience in scalable software systems with a strong full-stack background and demonstrated leadership in technical architecture. Must have experience building LLM-powered agents, prompt engineering, and proficiency in Java/Kotlin and TypeScript/React.

Key skills

• Full-stack Development — in 83 other listings on The Stack
• AI Architecture — in 3 other listings on The Stack
• LLM Integration — in 34 other listings on The Stack
• Prompt Engineering — in 59 other listings on The Stack
• Java — in 360 other listings on The Stack
• Kotlin — in 251 other listings on The Stack
• TypeScript — in 467 other listings on The Stack
• React — in 277 other listings on The Stack
• Model Context Protocol
• Agentic Frameworks
• System Design
• API Design
• Technical Leadership
• Mentoring
• Scalable Software Systems
• AI Coding Assistants

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

• Toast has 12 other listings on The Stack, 12 of them marked as offering visa sponsorship.
• 20 visa-sponsored jobs in Portugal 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 Principal Software Engineer - AI Pod (Dublin, Ireland) role still open?

It was posted on 2026-06-04. 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 Lisbon, Portugal. It is marked on-site.

What skills does this role ask for?

The listing names: Full-stack Development, AI Architecture, LLM Integration, Prompt Engineering, Java, Kotlin, TypeScript, React, Model Context Protocol, Agentic Frameworks, System Design, API Design, Technical Leadership, Mentoring, Scalable Software Systems, AI Coding Assistants.