Job Description & How to Apply Below
VIAVI (NASDAQ: VIAV) is a global provider of network test, monitoring and assurance solutions for telecommunications, cloud, enterprises, first responders, military, aerospace, and railway. VIAVI is also a leader in light management technologies for 3D sensing, anti-counterfeiting, consumer electronics, industrial, automotive, government and aerospace applications.
We are the people behind the products that help keep the world connected at home, school, work, at play, and everywhere in between. VIAVI employees are passionate about supporting customer success and we welcome people who bring their best every day to the company – to question, to collaborate and to push for solutions that will delight our customers.
VIAVI Solutions is seeking a Senior Firmware Developer to join the Fiber Optic Production Lab Test (FOPLT) engineering team. This role focuses on embedded firmware development for modular optical test and measurement cassettes used in the MAP platform. The ideal candidate has hands‑on experience with ARM and DSP embedded systems, FPGA interfacing, microcontroller programming, and Linux kernel‑level development. You will work across the full hardware‑software stack – from microcontroller and DSP firmware to ARM Linux applications, FPGA register interfaces, and PCIe bridge logic – delivering production‑quality firmware for instruments used by telecom operators worldwide.
About the Role
As a Senior Firmware Developer at VIAVI Solutions, you will design, develop, debug, and maintain embedded firmware for the MAP modular optical test platform and its cassette ecosystem. The MAP platform is a rack‑mounted chassis hosting hot‑swappable optical test modules (cassettes) covering a broad range of fiber optic test and measurement applications.
You will work across multiple cassette architectures as well as chassis‑level infrastructure including FPGA bridges, microcontrollers, and Linux kernel/driver integration.
Duties & Responsibilities
Cassette Firmware Development Develop and maintain firmware for ARM‑based cassettes (embedded Linux, C/C++) and DSP‑based cassettes (uClinux, C/C++)Implement SCPI command protocol handlers for instrument control and measurement data acquisition
Develop multi‑threaded real‑time signal processing pipelines using FFT, DSP, and SIMD optimizations
Interface with optical hardware components via I2C, SPI, UART, and USB
FPGA Interfacing & Development Interface cassette firmware with FPGA co‑processors for signal processing, optical triggering, and hardware acceleration via memory‑mapped registers
Maintain and enhance the MAP platform PCIe bridge FPGA (Verilog) which provides bus translation between the host processor and cassette backplane
Debug FPGA register‑level interactions and timing issues across SPI and PCIe domains
Microcontroller Firmware Develop firmware for bridge board microcontrollers (C) that manage FPGA programming, card‑present detection, I2C register interfaces, and chassis power sequencing
Maintain power management microcontroller firmware controlling chassis power rails, standby/power‑cycle sequencing, and watchdog functionality
Kernel & System‑Level Work Contribute to Linux kernel and device tree customization on the chassis controller
Debug and resolve hardware‑software integration issues including I2C bus contention, display pipeline conflicts, IRQ handling, and power management
Develop and maintain system services, udev rules, and shell scripts for chassis lifecycle management (boot, hot‑plug, reboot, shutdown)
Cross‑Functional Collaboration Work closely with hardware engineers on board bring‑up, schematic review, and signal integrity debugging
Collaborate with the software team on communication between cassette firmware and the web GUI / front panel applications
Support manufacturing with calibration firmware, production test scripts, and factory provisioning tools
Leverage AI‑augmented development workflows (e.g., AI coding assistants) to accelerate firmware development, debugging, analysis and unit‑testing
Pre‑Requisites / Skills / Experience Requirements
Required Qualifications
BS or MS in Electrical Engineering, Computer Engineering, or related field
7+…
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