Software Engineer II, Voice AI Platform

Toast is driven by building the restaurant platform that helps restaurants adapt, take control, and get back to what they do best: building the businesses they love. We are looking for a Software Engineer II to join the Voice AI Team.

On the Voice AI Team, our mission is to build and operate the voice platform that powers Toast and to ship novel applications on top of it that create real value across Toast's customer base. This is a greenfield space where the platform and its use cases are being defined together, and the work you do here will be foundational to how Toast uses voice AI for years to come.

As a Software Engineer II on this team, you'll help design and build the backend services, integrations, and tooling that make the platform reliable, scalable, and useful, working closely with engineers, product managers, and stakeholders across Toast to bring new capabilities to life. Here’s what you’ll be doing:

• →Design, build, deploy, and maintain highly resilient and scalable backend services supporting Toast's Voice AI platform
• →Join a collaborative team to develop robust, production-quality software using modern engineering practices
• →Contribute to complex projects that improve functionality and reliability for our customers
• →Participate in code reviews and design processes to ensure implementations meet requirements
• →Participate in architectural discussions and influence the technical roadmap
• →Advocate for best coding practices to raise the bar for you, your team, and the company
• →Mentor and provide technical guidance to other team members

• 2+ years of experience with object-oriented languages such as Java or Kotlin
• Basic familiarity with frontend development on small scale projects
• Bachelor’s degree in Computer Science, Software Engineering, Computer Engineering, or related field.
• Experience delivering high-quality, reliable services or libraries to production
• Understanding of automated testing, quality, and SDLC best practices for backend systems
• Proficient with relational databases and alternative data stores
• Experience with distributed systems, enterprise messaging systems, and/or microservices
• Excellent communication skills on complex technical topics
• Comfortable working with AI-powered systems, including an understanding of how nondeterminism, observability, and cost management differ from traditional software
• Actively uses AI coding tools (e.g., Claude Code, Cursor) in day-to-day development
• Passionate about technology and learning new things

Our backend services follow a microservice architecture written in Kotlin and Java using DropWizard, running on AWS (DynamoDB, RDS, Lambda). We store data in sharded Postgres databases and have our own platform for user management, canary deployments, and load balancing. Our web front-end is built with React and ES6.

At 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.

At 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.

We Thrive Together

We 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: https://careers.toasttab.com/locations-toast.

Toast 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 candidateaccommodations@toasttab.com.

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