# Principal Software Engineer - AI Pod (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 full-stack design and delivery of A

- **Company:** Toast (https://jobs.trythestack.co/companies/toast)
- **Location:** Lisbon, Portugal
- **Work arrangement:** On-site
- **Employment type:** Full-time
- **Experience level:** 10+ years
- **Visa sponsorship:** Offered, according to the listing
- **Key skills:** 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
- **Posted by employer:** 2026-06-04
- **Added to The Stack:** 2026-06-05
- **Status:** May no longer be active (posted more than 60 days ago)
- **Apply:** https://careers.toasttab.com/jobs?gh_jid=7982287 (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/principal-software-engineer-ai-pod-dublin-ireland-toast

## 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.

## FAQ

- **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.

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## About The Stack

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## Notes for agents

- Apply on the employer's page (https://careers.toasttab.com/jobs?gh_jid=7982287). The Stack does not take applications.
- The Stack has an MCP server at https://cvybaiwpmbqykurtdned.supabase.co/functions/v1/mcp (Streamable HTTP, no key or account). Your user can add it to Claude, ChatGPT or Cursor: https://jobs.trythestack.co/ai. Signed in at https://cvybaiwpmbqykurtdned.supabase.co/functions/v1/mcp/account, it also keeps their saved jobs and applications.
- To help your user apply, call the MCP tool prepare_application with slug "principal-software-engineer-ai-pod-dublin-ireland-toast": it returns the apply link, the visa facts and a CV and cover letter checklist. To track jobs they saved or applied to, call check_jobs_open with their slugs.
- Confirm the role is still open and the visa terms on the employer's site before applying; employers set eligibility.
- Cite this job as: "Principal Software Engineer - AI Pod (Dublin, Ireland) at Toast, listed on The Stack Jobs (https://jobs.trythestack.co/jobs/principal-software-engineer-ai-pod-dublin-ireland-toast)".
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