Senior Optical Transceiver Firmware Engineer
About The Position
Arista Networks is seeking a highly motivated and skilled Senior Optical Transceiver Firmware Engineer to develop embedded software and firmware for next-generation optical modules and engines operating at 1.6Tbps and beyond. This engineer will play a key role in enabling the performance, manageability, and integration of advanced optical transceivers that power Arista’s high-speed networking products. In this role, you will be responsible for developing low-level firmware for optical modules, including control, monitoring, diagnostics, and communication protocols (such as CMIS, I2C, MDIO).
Requirements
- Bachelor’s degree in Electrical Engineering, Computer Engineering, or a related field.
- 5+ years of experience in embedded firmware/software development, with a focus on hardware-level control systems.
- Strong proficiency in C/C++ programming for embedded systems.
- Experience working with optical transceivers or related modules (e.g., QSFP, OSFP, OSFP).
- In-depth knowledge of communication protocols such as I2C, MDIO, SPI, and experience working with CMIS/PMBus.
- Familiarity with optical module diagnostics, alarms, monitoring, and calibration routines.
- Strong debugging skills using tools such as logic analyzers, bus analyzers, and oscilloscopes.
- Excellent written and verbal communication skills.
Responsibilities
- Design, develop, and debug embedded firmware for optical transceiver modules (e.g., OSFP, QSFP-DD, OSFP).
- Implement firmware features to support CMIS, I2C/MDIO communication, module control, diagnostics, and alarms.
- Define firmware architecture and requirements in collaboration with optical hardware, electrical, and system teams.
- Develop and maintain automation tools for testing and validating firmware functionality and compliance.
- Collaborate with manufacturing and operations teams to support production testing, module calibration, and field upgrades.
- Ensure firmware meets reliability, security, and power efficiency targets.
- Participate in code reviews, documentation, and design discussions.
- Stay current with industry standards (CMIS, MSA, IEEE) and contribute to internal adoption of new features.
Benefits
- US-based employees are also entitled to benefits including medical, dental, vision, wellbeing, tax savings and income protection.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Number of Employees
1,001-5,000 employees
