Principal Embedded Firmware Engineer — Rust and Connected Devices
About CI Solutions
CI Solutions develops secure identity and credentialing technology for schools and other organizations. Our products support student identification, card issuance, RFID and NFC credentials, connected readers, and integrations with the systems our clients use every day.
CR-One is our networked NFC/RFID reader platform. It supports student-ID, transportation, food service, access, attendance, and other credential-based programs. The first generation of CR-One readers is moving into customer and partner environments, and we are hiring an experienced firmware engineer to take technical ownership of the platform.
The role
We are looking for a Principal Embedded Firmware Engineer to own the CR-One firmware platform and the tools used to build, provision, release, update, and support it.
You will take ownership of an in-production system, develop a deep understanding of its architecture, keep the deployed fleet healthy, and extend it for future products and use cases. You will work closely with hardware,



backend, product, manufacturing, technical services, and external engineering partners.
What you will work on
Embedded Rust device architecture
NFC RFID
Cellular, BLE, USB, and GNSS
Security and device lifecycle
Protocols and fleet tooling
Responsibilities
Take technical ownership of the CR-One firmware platform and its build, flash, provisioning, release, and update pipelines.
Safely extend and improve firmware running on devices in customer and partner environments.
Own the OTA release lifecycle, including signing, staged deployment, rollback, health validation, and incident response.
Diagnose firmware and hardware problems using logs, telemetry, serial traces, and controlled reproduction.
Improve reproducible builds, release documentation, and operational visibility.
Maintain backward compatibility across firmware versions, device configurations, and shared wire protocols.
Support facto

📌 Principal Embedded Firmware Engineer (Los Alamitos)
🏢 Hire Ventures
📍 Los Alamitos