Principal Software Engineer (Dublin, Ireland)

{"@context":"http://schema.org/","@type":"JobPosting","title":"Principal Software Engineer (Dublin, Ireland)","description":"\u003ch4\u003e\u003cstrong\u003eThis hybrid role is based in Dublin, Ireland (Full relocation provided).\u003c/strong\u003e\u003c/h4\u003e\n\u003cp\u003eToast 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.\u003c/p\u003e\n\u003cp\u003eBecause our technology is purpose-built for restaurants, by restaurant people - and increasingly shaped by AI in both what we build and how we build - restaurants can trust that we'll deliver on their needs for today while investing in the experiences that will power their restaurant of the future.\u003c/p\u003e\n\u003cp\u003eAn AI pod is Toast's AI-native engineering team, a focused pod of specialists who tackle complex, high-impact problems across Toast's product and platform landscape using AI-first approaches.\u003c/p\u003e\n\u003cp\u003eAs a Principal Software Engineer, you'll work full-stack across ambitious, cross-cutting initiatives, bringing deep technical expertise and architectural judgment to some of the hardest problems at Toast.\u003c/p\u003e\n\u003ch2\u003e\u003cstrong\u003eA day in the life (Responsibilities)\u003c/strong\u003e\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLead full-stack design and delivery of AI-native solutions that address complex, cross-functional problems across Toast\u003c/li\u003e\n\u003cli\u003eDrive technical architecture for pod initiatives, from backend services and APIs to frontend and developer-facing interfaces\u003c/li\u003e\n\u003cli\u003eBuild and integrate LLM-powered agents, tools, and workflows that bring AI capabilities directly into product and platform contexts\u003c/li\u003e\n\u003cli\u003eSet and uphold engineering standards within the pod: code quality, system design, testing, and operational practices\u003c/li\u003e\n\u003cli\u003eMentor engineers through design reviews, code reviews, and pairing\u003c/li\u003e\n\u003cli\u003ePartner with stakeholders across Toast engineering to define problem scope, align on approach, and deliver outcomes\u003c/li\u003e\n\u003cli\u003eServe as a technical voice in cross-team architecture discussions, connecting pod work to broader Toast engineering patterns\u003c/li\u003e\n\u003c/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eWhat you'll need to thrive (Requirements)\u003c/strong\u003e\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003e10+ years of experience designing and delivering scalable software systems, with a strong full-stack background spanning backend services and frontend or developer-facing interfaces\u003c/li\u003e\n\u003cli\u003eDemonstrated experience leading technical architecture for a platform, product, or engineering team\u003c/li\u003e\n\u003cli\u003eExperience building, deploying, or operating LLM-powered agents or AI platform infrastructure\u003c/li\u003e\n\u003cli\u003eFamiliarity with AI coding assistants (e.g., Claude Code, Cursor, GitHub Copilot) and experience extending them through custom plugins, skills, or hooks\u003c/li\u003e\n\u003cli\u003eExperience with MCP (Model Context Protocol), tool use patterns, or similar agentic integration frameworks\u003c/li\u003e\n\u003cli\u003eStrong prompt engineering skills and intuition for how LLM behavior responds to context and instructions\u003c/li\u003e\n\u003cli\u003eStrong foundation in modern backend (Java, Kotlin, or similar) and frontend (TypeScript, React, or similar) technologies\u003c/li\u003e\n\u003cli\u003eA bias towards action and comfort operating in ambiguous, rapidly evolving problem spaces\u003c/li\u003e\n\u003c/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eWhat will help you stand out\u003c/strong\u003e\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFamiliarity with A2A (Agent-to-Agent) protocols and multi-agent orchestration patterns\u003c/li\u003e\n\u003cli\u003eExperience with machine learning concepts, model evaluation, or ML infrastructure\u003c/li\u003e\n\u003cli\u003eExperience building developer experience platforms or internal tooling\u003c/li\u003e\n\u003cli\u003eFamiliarity with observability tooling for AI/LLM systems (e.g., Langfuse, DataDog)\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAI at Toast\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eAt Toast, one of our company values is that we're hungry to build and learn. We believe learning new AI tools empowers us to build for our customers faster, more independently, and with higher quality. We provide these tools across all disciplines, from Engineering and Product to Sales and Support, and are inspired by how our Toasters are already driving real value with them. The people who thrive here are those who embrace changes that let us build more for our customers; it’s a core part of our culture.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eOur Total Rewards Philosophy \u003cbr\u003e\u003c/strong\u003eWe strive to provide competitive compensation and benefits programs that help to attract, retain, and motivate the best and brightest people in our industry. Our total rewards package goes beyond great earnings potential and provides the means to a healthy lifestyle with the flexibility to meet Toasters’ changing needs. Learn more about our benefits at \u003ca href=\"https://careers.toasttab.com/toast-benefits\"\u003ehttps://careers.toasttab.com/toast-benefits\u003c/a\u003e.\u003cbr\u003e\u003cbr\u003e#LI-Hybrid\u003cbr\u003e#BI-Hybrid\u003c/p\u003e\u003cdiv class=\"content-conclusion\"\u003e\n\u003cp\u003e\u003cstrong\u003eHow Toast Uses AI in its Hiring Process\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThroughout the hiring process, our goal is to get to know you. We use AI tools to support our recruiters and interviewers with tasks like note-taking, summarization, and documentation of interviews to ensure they can be fully focused on your conversation. All hiring decisions are made by people. To learn more: \u003ca href=\"https://careers.toasttab.com/ai-in-hiring\"\u003ehttps://careers.toasttab.com/ai-in-hiring\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cstrong\u003eDiversity, Equity, and Inclusion is Baked into our Recipe for Success\u003c/strong\u003e\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eAt Toast, our employees are our secret ingredient—when they thrive, we thrive. The restaurant industry is one of the most diverse, and we embrace that diversity with authenticity, inclusivity, respect, and humility. By embedding these principles into our culture and design, we create equitable opportunities for all and raise the bar in delivering exceptional experiences.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eWe Thrive Together\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eWe embrace a hybrid work model that fosters in-person collaboration while valuing individual needs. Our goal is to build a strong culture of connection as we work together to empower the restaurant community. To learn more about how we work globally and regionally, check out: \u003ca class=\"c-link\" href=\"https://careers.toasttab.com/locations-toast\" target=\"_blank\"\u003ehttps://careers.toasttab.com/locations-toast\u003c/a\u003e.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eApply today!\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eToast is committed to creating an accessible and inclusive hiring process. As part of this commitment, we strive to provide reasonable accommodations for persons with disabilities to enable them to access the hiring process. If you need an accommodation to access the job application or interview process, please contact \u003ca href=\"mailto:✉ Sign in to view email\"\✉ Sign in to view email\u003c/a\u003e.\u003c/p\u003e\n\u003cp\u003e\u003cem\u003e------\u003c/em\u003e\u003c/p\u003e\n\u003cp\u003e\u003cem\u003eFor roles in the United States, it is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.\u003c/em\u003e\u003c/p\u003e\n\u003c/div\u003e","datePosted":"2026-05-12T16:33:47Z","employmentType":"FULL_TIME","validThrough":"2026-08-10T17:17:21Z","hiringOrganization":{"@type":"Organization","name":"Toast","sameAs":null,"logo":"https://d25wby5c7p9100.cloudfront.net/public/uploads/d698635c92a50a0a70d2c9f23ff0beea/companies/logos/d698635c92a50a0a70d2c9f23ff0beea/thumb/toastlogo.png?1641234910"},"identifier":{"@type":"PropertyValue","name":"Toast","value":"cc09e1f45d4e4915e7032f74d7d5450e"},"jobLocation":[{"@type":"Place","address":{"@type":"PostalAddress","streetAddress":"","addressLocality":"Lisbon","addressRegion":"Lisbon","postalCode":null,"addressCountry":"PT"}}]}