Senior Software Engineer (Android)

• As a Senior Software Engineer on the Card Readers team, it’s your job to make sure those millions of payments are processed quickly, reliably, and securely

• You will be a key team member responsible for designing, developing, and maintaining our POS payment integrations

• You will work closely with hardware SDKs, the core POS application team, and other cross-functional stakeholders to drive technical decisions and refine the target architecture for our payment solutions

• Your expertise in high-throughput asynchronous JVM solutions, coupled with a deep understanding of mission-critical transaction processing, will be crucial in delivering robust and scalable solutions

• Design, develop and roll out robust, high-performance applications using Kotlin

• Lead technical discussions and decisions on best practices, performance optimizations, and security

• Collaborate with cross-functional teams (backend, product, UX/UI, QA) to deliver seamless payment experiences

• Optimize mobile payment flows for security, speed, and reliability

• Shape the face of development at Toast by helping to balance building maintainable software for long term success, with the need to deliver value to customers in an iterative fashion

• Ensure compliance with PCI-DSS, security best practices, and other financial industry standards

• Mentor and guide junior engineers, conduct code reviews, and drive best practices in software development

• Troubleshoot and resolve complex technical issues, ensuring high availability and performance

• Participate in agile development processes, including sprint planning, daily stand-ups, and retrospectives

• Stay up to date with emerging technologies, frameworks, and trends

Benefits

• Peer and company recognition programs

• Unlimited Vacation

• Sabbatical opportunity after five years

• Professional Development Reimbursement Program

• Commitment to Employee Wellness through resources such as a quarterly Wellness Stipend

• Various peer and company recognition programs

• 401(k) and matching

• Medical, Dental, & Vision Coverage

• Mental Health Benefits

• Subsidized backup childcare- Excellent communication, collaboration, and problem-solving skills that lead others by example

• Deep knowledge of multi-threading/concurrency (experience with coroutines a plus)

• Openness and enthusiasm for AI tooling to enhance R&D productivity

• Experience working in a large (Android) project/codebase, architecting for clear domain boundaries, modularity, reusability, and testability

• Expertise in observability, monitoring, and alerting for complex user-device interactions

• Experience designing public APIs for hassle-free consumption

• Strong skills in mentoring fellow developers on best practices

• Track record of complex and robust SDK integrations completed successfully

• Expert-level proficiency in Kotlin, Java, and/or JVM languages

• Card Payments/EMV experience

• Hardware/device integration experience

• Security and key management experience