masabi - Systems Engineer (Remote - Contractor)
Requirements
• Embedded Linux experience (Yocto, systemd, cross-compilation) • Familiarity with NFC, smartcards or EMV contactless • Experience with Terraform/Terragrunt, gRPC and Protobuf • Experience in security-sensitive environments (PCI, key management) or with hardware-in-the-loop testing • Knowledge of transit, ticketing or IoT device fleets • We don't expect you to tick every box. What matters most is curiosity, a willingness to learn, and the motivation to take ownership of your work. • WHAT YOU'LL LEARN_ • How a global fare payment platform works end to end, from the cloud to the devices riders tap • Hands-on experience with contactless payments, embedded devices and cloud services at scale • How to deliver in a cross-functional, international team where engineers help shape the technical direction • Java/Kotlin, Go, C • Embedded Linux • GitLab CI/CD, Docker • Terraform/Terragrunt • gRPC, Protobuf • Careers at Masabi are for people going places - driven by a mission to make transit fair and accessible for all. • // We are a network of innovators from all walks of life, passionate about making a difference. At Masabi, we operate with openness and trust, creating an environment where everyone feels empowered to bring their whole, authentic selves to work. • Whoever you are, just be yourself. • // We welcome applications from underrepresented groups, including disabled and neurodivergent people, and can make adjustments at any stage of the process. You’re also welcome to share your pronouns whenever you feel comfortable. Together, we simplify journeys, remove barriers, and improve daily life for millions.
Responsibilities
• Integrate and maintain Justride SDKs on embedded and hardware-enabled devices, including fare media validation, NFC and contactless EMV tap handling, and barcode payloads • Build and maintain features in our Android point of sale app, including integration with card readers, NFC readers and printers • Build and maintain on-device services and integration proxies that connect to onboard vehicle systems such as GPS and AVL • Contribute to cloud services that support devices, such as remote configuration and software updates • Write clean, well-tested code and contribute to code reviews, CI pipelines, infrastructure as code, monitoring and releases for the components you work on • Troubleshoot issues across devices and the cloud using logs, metrics and lab hardware • Take part in feature refinement and technical discussions, and help shape solutions • Take ownership of your work and support team outcomes
Benefits
• Driven by Purpose – We believe in journeys made simple. The work isn’t always easy, but the best things never are. • Encouraged to Accelerate – Masabi is going places and our people are in the driving seat. Whether you’re taking the direct route or exploring new paths, we support your journey. • Advancing with Empathy – We put people first and foster a culture of learning, not blame. No matter your cargo, we share the load. • We’re already powering journeys - are you ready to join us?
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