# Senior Software Engineer, AI Agent & Experience Team

**Company**: Toast
**Location**: Dublin, Ireland
**Work arrangement**: hybrid
**Experience**: senior
**Job type**: full-time
**Category**: Engineering
**Industry**: Technology

**Apply**: https://job-boards.greenhouse.io/toast/jobs/8230535?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_7ba0b2e0-92d

## Description

Toast 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.

The AI Agent & Experience team is Toast's internal platform team for AI. We build the infrastructure, governance, and developer tooling that makes AI a reliable, scalable force multiplier across the entire product development lifecycle.

As a Senior Software Engineer on this team, you'll be hands-on building the systems that other Toast engineers depend on every day: the LLM proxy, agentic workflows, and the plugin marketplace that brings AI-native development practices to teams across the company.

**Responsibilities**

- Design, build, and ship features across AI platform infrastructure, including the LLM proxy, AI key management, and observability pipelines

- Develop and extend autonomous agents that participate in the SDLC, such as the AI Review GitHub App and Developer Platform MCP integrations

- Build on and contribute to the internal plugin marketplace, developing plugins that encode Toast's architectural standards and quality practices into AI assistant behavior

- Implement MCP (Model Context Protocol) services and service templates that make it faster and easier for teams across Toast to build AI-powered workflows

- Write high-quality, well-tested code and participate in design and code reviews

- Collaborate with engineers, product managers, and platform teams to understand developer needs and translate them into reliable platform solutions

- Contribute to the team's adoption of agentic development practices and tooling

- Leverage cutting edge AI tools to enhance your development workflow, improve velocity, and help pioneer new approaches to building - contributing to a culture of innovation and productivity across the team.

**Requirements**

- Bachelor’s Degree with relevant experience of 5+ years in designing and implementing scalable backend services

- Demonstrated experience building, deploying, or operating LLM-powered agents or AI-assisted developer tooling

- Familiarity with AI coding assistants (e.g., Claude Code, Cursor, GitHub Copilot) and an interest in extending them through custom plugins, skills, or hooks

- Experience with MCP (Model Context Protocol), tool use patterns, or similar agentic integration frameworks

- Working knowledge of prompt engineering and how LLM behavior responds to context and instructions

- Strong foundation in Java, Kotlin, or another object-oriented language

- Experience with distributed systems, REST APIs, and cloud-native infrastructure

- Strong customer empathy and a drive to make developers' lives better through reliable, well-designed platform solutions

**Nice to Have**

- Familiarity with A2A (Agent-to-Agent) protocols and multi-agent orchestration patterns

- Experience with machine learning concepts, model evaluation, or ML infrastructure

- Experience building developer experience platforms, internal tooling, or API gateways

- Familiarity with observability tooling for AI/LLM systems (e.g., Langfuse, DataDog)

## Skills

### Required
- Java
- Kotlin
- AI coding assistants
- MCP (Model Context Protocol)
- distributed systems
- REST APIs
- cloud-native infrastructure
- prompt engineering
- LLM-powered agents
- agentic integration frameworks

### Nice to have
- A2A (Agent-to-Agent) protocols
- multi-agent orchestration patterns
- machine learning concepts
- model evaluation
- ML infrastructure
- developer experience platforms
- internal tooling
- API gateways
- observability tooling for AI/LLM systems

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Source: [Apply at job-boards.greenhouse.io](https://job-boards.greenhouse.io/toast/jobs/8230535?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)