Principal Software Engineer- Backend

Toast is building the restaurant platform of the future—helping restaurants of all sizes adapt, innovate, and grow through modern technology. As a Principal Engineer / architect, you will be responsible for creating a technical strategy and coordinating the designs for meeting the needs of Toast's largest restaurant brands.

You will lead the evolution of Toast's backend architecture, frameworks, and data models with a strong focus on delivery efficiency, system scalability, and resilience. The role involves designing and building next-generation accounting and financial systems using Java, Kotlin, DynamoDB, Pulsar, GraphQL, and Big Data tools.

Key responsibilities include:

• Defining and implementing scalable engineering practices
• Collaborating cross-functionally with Product, UX, QA, and multiple engineering teams
• Building partnerships across business units
• Championing data-driven decision making
• Mentoring and growing engineers across levels

The tech stack includes:

• Languages: Kotlin, Java, C#, Scala
• Frameworks: Spring Boot, DropWizard, Camel
• Messaging: Pulsar, RabbitMQ, SQS/SNS
• Cloud: AWS (S3, RDS, Lambda, CloudWatch)
• Data & Analytics: DynamoDB, Postgres, SQL Server, Apache Spark, Redshift
• Frontend: React, Angular
• CI/CD & Infra: GitHub Actions, Terraform, Docker, Kubernetes

This role follows a hybrid work model requiring minimum 2 days per week in office. The position offers opportunities to influence technical strategy, mentor others, and work on mission-critical systems at scale.