Location(s): US (remote), Boston (hybrid), or New York (hybrid) Bready* to make a change? 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. The Retail organization at Toast is focused on building foundational technology to support a rapidly expanding vertical. We emphasize early learnings and remain closely aligned with our customers, engaging in frequent conversations with our initial retail partners to understand their needs, pain points, and feature requests. This direct feedback loop allows us to rapidly iterate and ensures we are building the right product for the market. As one of the fastest-growing verticals at Toast, we offer an opportunity to have a significant impact on the company's future growth. The Retail Grocery team is key to this expansion, focusing on helping grocery stores manage inventory, keep prices up to date, and streamline back-office operations. This team works closely with customers — expect to visit stores and talk directly with grocers to deeply understand their workflows. About this roll* (Responsibilities) - Work closely with engineering and product leads to identify high-impact opportunities in the domain - Plan, scope, and prototype solutions from design to rollout. You need to think about each feature as a whole, not just the side of the stack you work in - Make technical decisions and recommendations that will lay the foundation for the future of our retail platform - Stay in tune with customer needs by hearing direct customer feedback and staying abreast of industry trends - Deploy AI-native experiences that delight our customers, powered by Toast IQ. Do you have the right ingredients*? (Requirements) - Growth mindset with an emphasis on learning and self/team-improvement - 7+ years experience building and shipping production software to customers - Experience with Java, Kotlin, or other object oriented programming languages - Respectful, empathetic, and humble - Passionate about making users happy and seeing people use your product in the wild. - Startup mindset and comfort with ambiguity - Flexible in using different tech stacks and languages - Comfortable with testing methodologies and frameworks 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, experience, and geographic location. In addition to base salary, our total rewards components include cash compensation (overtime, bonus/commissions if eligible), equity, and benefits. You can learn more about how we align pay with local labor markets in our Geographic Pay Zone Philosophy. Zone A $159,000—$254,000 USD Zone B $138,000—$221,000 USD Zone C $125,000—$200,000 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. To learn more: https://careers.toasttab.com/ai-in-hiring Our Approach to Hybrid Working 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 hospitality community, regardless of location. Please visit the Locations page on our career site to learn more about our in-office expectations by region: https://careers.toasttab.com/locations-toast 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.

Role Description As a Senior I O Engineer specializing in CICS System Programming, you will play a critical role in maintaining and optimizing the CICS environment on IBM z/OS systems. In this role, you will apply deep technical expertise in system integration, software maintenance, and performance tuning across multi-LPAR, Parallel Sysplex environments. Our operational environment is continuously evolving, and you will leverage enterprise-approved AI productivity and diagnostics tools to analyze capacity data, summarize complex team communications, and streamline documentation. Working alongside cross-functional automation and application teams, you will help implement proactive health check systems, manage CICS regions, and guide disaster recovery planning to sustain operational resilience on a global scale. You will enjoy the flexibility to telecommute* from anywhere within the U.S. as you take on some tough challenges. - Configure, maintain, and optimize CICS environments on IBM z/OS across multi-LPAR, Parallel Sysplex environments to ensure high system resilience - Create and manage CICS regions, support application teams with resource definitions, and troubleshoot stability issues - Diagnose and resolve system incidents independently using monitoring tools such as BMC/AMI Mainview, Splunk, and MXG, as well as Omegamon, Sysview, and Abend-aid - Support the integration of z/OS Connect APIs and contribute to automated deployments using tools like XL Deploy and Artifactory - Use enterprise-approved AI tools to streamline workflows, automate tasks, analyze capacity planning metrics, and drive continuous operational improvement - Evaluate emerging technology trends to inform environment design, strategic optimization, and intelligent automation strategies - Partner with external vendors to compile diagnostic documentation, troubleshoot technical issues, and manage support tickets - Perform disaster recovery planning, performance optimization, and region decommissioning initiatives - Support 24x7 critical operations as part of a scheduled on-call rotation Qualifications - Bachelor's degree OR 10+ years of system programming experience - 8+ years of system programming experience including z/OS skills with TSO, JCL, started tasks, and RACF - 7+ years of CICS system programming experience including upgrades and applying RSUs to the CICS product and related ISV products - 7+ years of experience working with multiple z/OS file types and file systems, including PDS/PDSE, VSAM, and zFS (including allocation and related Unix commands) - 7+ years of experience with IT Service Management (ITSM) processes, including Incident, Change, and Release management - 7+ years of experience utilizing metric and monitoring tools to evaluate system health - Ability to work on-call to support 24x7 operations as part of a scheduled rotation Requirements - Bachelor's degree (or higher) in Computer Science, Information Technology, or a related field - Experience using enterprise-approved productivity tools (such as Microsoft 365 Copilot) to draft technical communication and recap collaborative sessions - Experience utilizing AI-driven tools or intelligent analytics to analyze capacity planning data, system logs, or automated alerts - Experience with Java and JVM Administration on z/OS and/or CICS - Experience with IBM Operational Decision Manager (ODM) or Mainframe Configuration Managers - Ability to work independently with minimal supervision while mentoring junior team members - Experience utilizing metric and monitoring tools (such as BMC/AMI Mainview, Splunk, and MXG) to evaluate system health Benefits - Comprehensive benefits package - Incentive and recognition programs - Equity stock purchase - 401k contribution (all benefits are subject to eligibility requirements)

• Work with key Federal and Commercial client stakeholders to re-engineer business processes and translating those requirements to BPM code. • Works closely with Agency Business Owner, Product Owner, IT Federal Project Manager (FPM), and Federal Technical and other stakeholders to fully understand the functional and technical requirements in case management. • Actively participates and provides inputs in major design decisions. • Design and develop Appian applications and provide customer demos • Incorporate the functional requirements into the Appian business flows using Process Models, Rules, CDTs, and Web Service Integration • Design and implement complex enterprise integrations with industry standard technologies • Contribute to the BPM and Case Management practice at A&S by sharing best practices. • Support user testing business transition activities. • Information and follow Federal standards for Digital Services and US Web Design Standards • Complete additional duties as assigned.

• Investigate upstream security and bug fixes and identify their dependencies. • Backport Linux kernel patches to older RPM- and Debian-based distributions. • Resolve conflicts caused by differences between upstream and target kernel versions. • Build and rebuild kernel source and binary packages in reproducible environments. • Validate patched kernels through focused tests, build checks, and regression analysis. • Improve patch preparation, build, and validation workflows with Python, Go, or Shell. • Use agentic development tools responsibly and verify generated code, analysis, and documentation. • Document technical decisions and participate in code review with the kernel team.