Senior Software Engineer - Toast Connect

Toast is building the restaurant platform that helps restaurants adapt, take control, and get back to what they do best: running the businesses they love. We’ve grown into a leading hospitality software company in the U.S., and are now entering our next phase of growth - one defined by scale, complexity, and a new class of enterprise customers.

Toast is looking for a Senior Software Engineer to join our Toast Connect team in Dublin. The Connect team owns how everything outside Toast connects to Toast including the event infrastructure every team at Toast uses to publish data, the frameworks partners and customers use to integrate through our APIs, and a new charter to make Toast the source of truth for all the data about the customers we serve.

You will play a key role in evolving our platform to support ever more complex new features and best-in-class monitoring as we scale to orders of magnitude of our current size!

If you want to help create something tangible that is used every day, help businesses achieve their vision, and take on the challenge of scaling a SaaS product, Toast is the place for you.

A day in the life (Responsibilities)

• Design, build, deploy, and maintain scalable backend microservices and RESTful APIs using Java / Kotlin and AWS infrastructure.

• Lead complex projects that may span multiple teams & systems.

• Champion best practices such quality automated testing and phased rollouts to ensure zero-regression releases and high test coverage.

• Monitor service health for success & failure, analyze logs and metrics (Datadog/CloudWatch), and participate in on-call rotations to maintain platform uptime.

• Collaborate with peer engineers, provide design feedback, and participate in code reviews.

• Collaborate with PM & UX on the development of new features & products.

• Mentor & coach your peer engineers.

• Use AI tooling as a genuine part of your workflow, not an afterthought

What you'll need to thrive (Requirements)

• 5+ years professional backend software development in Kotlin, Java, or another object-oriented language, with solid instincts around testing and code quality.

• Have strong understanding & hands-on experience of building RESTful apis, fault-tolerant, highly-scalable & secure distributed systems.

• Proficiency with sql/nosql databases, strong understanding of distributed datastores and knowledge of when to use what.

• Familiarity with distributed systems concepts, asynchronous messaging (Kafka, Pulsar, or AWS SQS/SNS), and cloud platforms (AWS).

• Strong communication & problem-solving skills, curiosity to learn restaurant domain workflows, and enthusiasm for collaborating in an agile, cross-functional team.