Senior Software Engineer – Android contract

Who We Are  

At KEV, we build mission-critical financial software for K-12 schools on a massive scale. Our platform delivers real-time control and visibility into every dollar collected, whether cash, check, or digital, replacing fragmented workflows with secure, modern systems.  

Trusted by 27,000 K-12 schools and districts managing over $8B annually, KEV operates at the intersection of payments, accounting, and reporting-where complexity is high and engineering excellence matters. Headquartered in Toronto with teams across North America, we are scaling fast and investing deeply in cloud-native, data-driven technology.  

If you want to build high-impact SaaS products that solve hard problems, scale with purpose, and make your work matter in public education, KEV is the place to do it. 

About the Role  

We are seeking a Senior Software Engineer to help build and evolve our Android-based Point-of-Sale (POS) platform. This role is approximately 70% Android development and 30% backend development, with a primary focus on developing and supporting applications running on Android POS devices while contributing to Azure-based backend services responsible for telemetry, device management, monitoring, and operational insights. The ideal candidate will have strong Android development experience, an understanding of payment ecosystems and POS hardware, and hands-on experience building cloud services that support large fleets of deployed devices. 

Android Development (70%)  

• Design, develop, and maintain Android applications running on POS devices. 

• Build secure and reliable payment and operational workflows. 

• Develop applications using Kotlin, Java, Android SDK, Jetpack Libraries, MVVM, Coroutines, and Dependency Injection (Hilt/Dagger). 

• Integrate with card readers, receipt printers, barcode scanners, NFC readers, and customer-facing displays. 

• Develop and support applications on PAX devices and future Android-based payment terminals. 

• Optimize application performance, stability, and responsiveness. 

• Troubleshoot production issues across multiple Android device models and OS versions. 

Backend & Telemetry Services (30%)  

• Design and develop backend services that collect, process, and analyze telemetry generated by deployed payment devices. 

• Build APIs supporting device health monitoring, diagnostics, remote configuration, operational reporting, and fleet management. 

• Design scalable ingestion pipelines for device metrics, transaction events, logs, connectivity status, diagnostics, and remote management events. 

• Build monitoring and alerting capabilities that improve operational visibility across the device fleet. 

• Partner with platform and data teams to expose telemetry data for reporting and analytics. 

Required Qualifications  

• 8+ years of software engineering experience. 

• 5+ years of Android development experience. 

• Strong Android development using Kotlin, Java, Android SDK, and Jetpack libraries. 

• Experience building applications for POS, kiosk, retail, or specialized Android devices. 

• Experience with MVVM, Dependency Injection, Coroutines, and Clean Architecture. 

• Experience integrating REST APIs. 

• Backend development experience using C#/.NET, Java/Spring Boot, or Node.js. 

• Experience with Azure services and SQL/NoSQL databases. 

Cloud & Platform Technologies  

Required experience with Azure cloud services, with particular emphasis on Azure Application Insights. 

• Azure Application Insights 

• Azure Service Bus 

• Azure Functions 

• Azure Event Hubs 

• Azure Storage 

• Azure SQL 

• Cosmos DB 

• Azure Kubernetes Service (AKS) 

Preferred Qualifications  

• Experience working with payment devices, payment terminals, or POS hardware. 

• Experience supporting card-present payment solutions. 

• Knowledge of PCI-DSS requirements and secure payment processing practices. 

• Experience working with PAX devices is a strong asset. 

• Experience supporting Verifone, Ingenico, Castles, Clover, or similar devices. 

• Experience with telemetry, monitoring, observability, Docker, and Kubernetes. 

Ideal Candidate Profile  

A backend-leaning Android engineer who enjoys working at the intersection of mobile applications, payments, device hardware, cloud services, and telemetry platforms. Comfortable building Android applications for POS devices while also designing and supporting scalable backend services that manage and monitor large fleets of deployed devices. 

Why You’llLove Working at KEV   

• Make a real difference every day - At KEV, your work supports children, parents, and schools across North America. We don’t just build software, we create solutions that simplify lives and strengthen communities. Our mission is rooted in impact, and every team member plays a vital role in shaping the future of K-12 education. 
• The KEV Way - At KEV, you’ll never feel stuck in the status quo. You’ll be part of a team that’s constantly questioning, improving, and innovating-always with one guiding focus: How does this help our schools and the students they serve?It’s a culture that challenges you to do your best work while reminding you why it matters. 
• Grow with us - We’re scaling fast, and so are our people. At KEV, you’ll have real opportunities to learn, develop, and shape your career. Whether advancing in your role or exploring a new path, you’ll be supported every step of the way. 
• Work alongside excellence - You’ll be part of a team with integrity who treat their colleagues with respect. who are accomplished but humble, collaborative but accountable. It’s a place where you can do your best work while feeling supported and inspired by the people around you. 
• Celebrate Community and Culture - At KEV, we connect, recognize, and celebrate our people. Join Club KEV for team-building fun, hear directly from customers in our Voice of Customer Series, stay aligned with Monthly Townhalls, and be inspired by the KEVite Awards, where top contributors are recognized by their peers.

This job description indicates the general nature and level of work expected. It is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities required by an individual joining the KEV team in this or any other capacity.   

KEV Group is pleased to accommodate individual needs in accordance with the Accessibility of Ontarians with Disabilities Act, 2005 (AODA), within our recruitment process. If you require accommodation at any time throughout the recruitment process, please speak with your recruiter.   

KEV Group is an equal opportunity employer who agrees not to discriminate against any employee or job applicant because of race, color, religion, national origin, sex, physical or mental disability, or age.

KEV may use AI-enabled tools to support components of our recruitment process. These tools are used to support human decision making. All hiring decisions are made by our People and Culture team in partnership with Hiring Managers.

Visit our website for more information and details about working at KEV.