• Architect and implement clean, modular, and scalable backend services using Java, Spring Boot, and modern microservice principles. • Design efficient database schemas and write optimized queries for RDS (MySQL/PostgreSQL) and, optionally, NoSQL databases like Elasticsearch, MongoDB, or DynamoDB. • Integrate Kafka or RabbitMQ to build robust and loosely-coupled event-driven architectures. • Leverage Redis or Memcached to implement high-performance caching strategies for scalable and low-latency systems. • Contribute to the design of distributed, resilient systems that can handle high throughput and concurrency. • Profile and tune backend performance across databases, APIs, and infrastructure. • Write clean, maintainable code with comprehensive unit and integration tests to ensure reliability and stability. • Thrive in an agile, collaborative environment and take ownership of end-to-end feature delivery.

• Lead the development efforts to create platform v2 • Participate in software programming initiatives to support innovation and enhancement, using Python and PySpark. • Leverage the AWS ecosystem to bring in relevant tools, services, and resources to enable distributed computing and scalable processing of very large datasets. • Problem solve and think creatively about the big picture and solution for our customers, proactively anticipate problems, and be customer-centric in our development and design, and be open-minded to different solutions for achieving a development milestone. • Clearly document processes, methodologies, and tools used.

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. We are looking for a Senior Software Engineer to join our team! As a Senior Software Engineer, Backend within the Business Technology Transformation team, you will be a high-impact contributor directly influencing Toast's financial success. Your traditional software engineering expertise will be essential across internal groups as the company expands. Specifically, within the cross-system Orders and Subscriptions team, you will be accountable for order and subscription data, from initial customer signing up to billing. The team's mission is focused on revenue optimization and growth, driving increased recurring revenue, and enabling new go-to-market strategies through advanced pricing and billing models. Your responsibilities will cover managing the customer lifecycle after Sales and before Customer Onboarding processes, which includes orders, amendments, upsells, downsells, and renewals, leveraging service integrations between core systems like Salesforce and Zuora. Ultimately, the goal is to enhance system stability, improve the experience for customers and stakeholders through automation, and reduce the volume of customer care tickets. A day in the life (Responsibilities) - Work on large-scope, high-impact projects driving significant business value. - Design, implement, and maintain scalable, secure, and cost-effective backend systems. - Collaborate and communicate with cross-functional product teams. - Implement and maintain new and legacy platform integrations. - Plan and execute application integration with existing systems. - Draft technical designs, engineering, and testing plans for integrations. - Work with QA automation team members to develop and automate end-to-end and unit testing for stability. - Manage and optimize data storage, application performance, high availability, and comprehensive monitoring/alerting. - Utilize CI/CD pipelines and containerization for automated deployment and testing. What you'll need to thrive (Requirements) - 3+ years of software engineering experience, preferably in a backend role. - Bachelor’s in Computer Science or equivalent - Experience delivering high-quality, reliable services to production using languages such as Java, Kotlin, or other object-oriented languages. - Experience working with REST, XML, and JSON. - Strong understanding of query languages, data manipulation, and distribution. - Excellent documentation, QA, version control, and attention to detail skills. What will help you stand out (Nonessential Skills/Nice to Haves) - Experience with Workato or a similar iPaaS. - Exposure to distributed systems, scaling challenges, SaaS, SQL, JS, & Pulsar is a plus. - Experience with Enterprise Applications like Salesforce, NetSuite, or Zuora Billing. AI at Toast 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. Our Total Rewards Philosophy 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 https://careers.toasttab.com/toast-benefits. The base salary range for this role is listed below. The starting salary will be determined based on skills and experience. In addition to base salary, our total rewards components include cash compensation (overtime, bonus/commissions, if eligible), benefits, and equity (if eligible). Pay Range $138,000—$221,000 USD How Toast Uses AI in its Hiring Process Throughout the hiring process, our goal is to get to know you. We use AI tools to support our recruiters and interviewers with tasks like note-taking, summarization, and documentation of interviews to ensure they can be fully focused on your conversation. All hiring decisions are made by people. Diversity, Equity, and Inclusion is Baked into our Recipe for Success 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. 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 candidateaccommodations@toasttab.com. ------ For roles in the United States, it is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

• Design, develop, and maintain scalable applications using Python • Architect and implement RESTful APIs • Lead database design and optimization • Deploy applications on AWS & Azure • Implement CI/CD pipelines • Troubleshoot and debug production issues