Principal Software Engineer

Principal Software Engineer (Backend)

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.

Are you bready* for a change?

Toast is looking for a Principal Software Engineer to take responsibility for bringing our architecture to the next level and level up the team. As well as providing a cutting edge point of sale system for restaurants, Toast also processes billions of dollars of payments, and offers best-in-class financial service solutions to our customers. As we grow our solutions to meet the needs of our customers, we are also focused on optimizing for extensibility, resilience and scalability, using continuous delivery tools & methodology.

Join us to improve our platform and add the next generation of products.

About this roll* (Responsibilities)

As a Principal Software Engineer on our team, you will:

Design and deliver the next generation of Toast products.

Document solution design, write & review code, test and rollout solutions to production, capturing & actioning customer feedback to iteratively enhance customer experience

Collaborate with peers to optimize for solution design performance, flexibility and scalable, including enablement of multi-product & engineering teams on a common framework & platform

Collaborate with UX, Product Management, QA and partner engineering teams to build best-in-class solutions in a complex and fast-moving environment

Directly coach and mentor engineers on best in class industry standard development best practices

Do you have the right ingredients*? (Requirements)

Experience with continuous delivery of high quality, reliable and scalable services to production

Experience in AI, Cloud, Image processing and Full stack development.

Proficient in database technologies such as SQL server, Postgres, or Dynamo DB.

Proficient in cloud technologies such as AWS, Azure or GCP.

Proficient in Java, Kotlin, C# or other object oriented language(s).

Experience working in a team with Agile/Scrum methodology

Experience leading the build and scale of mission critical platform components

Experience of tackling complex and ambiguous problems, communicate clearly with others to solve the problem, and share knowledge to help the whole team succeed

Proficient in balancing getting things done with platform stability

Passionate about writing awesome code and delivering impactful scalable solutions

Hands-on mentoring of other engineers.

Our Spread* of Total Rewards

We 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

*Bread puns are encouraged but not required.

Our Tech Stack

Toast’s products run on a stack that ranges from guest and restaurant-facing Android tablets to backend services in Java to internal, guest-facing and restaurant-facing web apps. Our backend services follow a microservice architecture written using Java 8 and DropWizard; we use AWS extensively, ranging from S3 to RDS to Lambda. We have our own platform for dealing with user management, service elevations and robust load balancing. Toast stores data in a set of sharded Postgres databases and utilizes Apache Spark for large scale data workloads including query and batch processing. The front-end is built primarily using React and ES6. The main Toast POS application is an Android application written in Java and Kotlin. For data between tablets and our cloud platform we operate RabbitMQ clusters as well as direct tablet communication to the back end.

Toast uses .Net/C# and Java for the backend. The front-end is primarily written in MVC, React and Angular. We also use SQL Server/Aurora postgres for our database. Other technologies include SQS, SNS, Dynamo, SageMaker, Cloudwatch, Redshift, etc.

We are Toasters

Diversity, Equity, and Inclusion is Baked into our Recipe for Success.

At Toast our employees are our secret ingredient. When they are powered to succeed, Toast succeeds.

The restaurant industry is one of the most diverse industries. We embrace and are excited by this diversity, believing that only through authenticity, inclusivity, high standards of respect and trust, and leading with humility will we be able to achieve our goals.

Baking inclusive principles into our company and diversity into our design provides equitable opportunities for all and enhances our ability to be first in class in all aspects of our industry.

We are Toasters

Diversity, Equity, and Inclusion is Baked into our Recipe for Success.

At Toast our employees are our secret ingredient. When they are powered to succeed, Toast succeeds.

The restaurant industry is one of the most diverse industries. We embrace and are excited by this diversity, believing that only through authenticity, inclusivity, high standards of respect and trust, and leading with humility will we be able to achieve our goals.

Baking inclusive principles into our company and diversity into our design provides equitable opportunities for all and enhances our ability to be first in class in all aspects of our industry.

Bready* to make a change? Apply today!

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 .