Role: Senior Firmware Engineer
Location: Rancho Cordova, CARole Type: Full time
The successful candidate's starting base pay will be determined based on job-relatedskills, experience, qualifications, work location and market conditions. The expectedbase pay range for this role may be modified based on market conditions. Highly competitive salaries differentiated by performance.
Job Responsibilities
Protocol Stack Design and Maintenance:
Design and maintain the NVMe protocol stack, including Admin and I/O commandprocessing, and Submission/Completion Queue management.
Ensure full compliance with the latest NVMe specifications and PCIe Gen5 protocolrequirements.
Design and implement SMBus and I3C communication protocols, ensuring reliable andaccurate data exchange with the host controller.
Command Processing and Flow Control:
Implement NVMe command parsing, data transfer mechanisms, and completion flows, supporting multi-namespace operations. Implement SMBus/I3C read/write commands and data flow, including statusmonitoring, temperature/voltage reporting, and control command handling.
Error Reporting and Recovery:
Implement proper status code reporting, Asynchronous Event Notification (AEN), anderror recovery flows to ensure host compatibility.
Handle timeout, abort, and reset scenarios to maintain system stability and minimizehost impact.
Design SMBus/I3C error detection and retry mechanisms to prevent transmission errorsfrom causing system failures.
Compliance and Interoperability:
Verify compatibility with industry-standard NVMe compliance tools and host platforms. Validate SMBus and I3C communication against JEDEC/MIPI specifications to ensurebroad interoperability with different host systems and controllers.
Debug and Validation:
Capture and analyze PCIe/NVMe transactions using protocol analyzers, logic analyzers, and firmware logs.
Monitor SMBus/I3C transfers, analyze timing and error conditions, and ensure firmwareimplementation is stable and reliable.
Collaborate with validation teams to execute compliance, stress, and corner-casetests, including hot-plug, power management, error injection, and multi-protocolconcurrency tests.
Provide root-cause analysis and implement fixes for protocol-related issues foundduring validation or in customer systems.
Minimum Requirements:
Master's degree in Electrical Engineering, Computer Engineering, Computer Science, orrelated fields.
At least 3 years work experience in each of the following:
- Software/firmware applications engineering
- Experience in SSD controller/firmware architecture
- Strong experience in C/C++ programming and data structure
- Hands on experience with JTAG/ICE debuggers
- Experience with version control software like Git.
- Competent to work independently as well as in a small team collaborationenvironment.
- Must be willing to learn fast and execute as a team player.
- Good oral, written and presentation skills for communication and documentation.
- Ability to work independently with a minimum of day-to-day supervision.
Preferred Qualifications:- The ability to operate logic analyzer, oscilloscope and bus protocol analyzer is valuable.
- Familiar with SATA/PCIe (NVMe) protocols
- Familiar with NAND flash protocols
- Linux system debug experience.
- Fluent in reading and writing Mandarin preferred.
- Annual merit increases
Benefits:- Year-end bonusRSU for eligible employees
- Invention and Patent Awards 401(k) Employer Matching
- Length of Service AwardsWe offer comprehensive health insurance plans for eligible employees and dependents.
- There are plans to meet the needs of you and your family.
About Us:
InterSources Inc, a Certified Diverse Supplier, was founded in 2007 and offers innovative solutions to help clients with Digital Transformations across various domains and industries. Our history spans over 16 years and today we are an Award-Winning Global Software Consultancy solving complex problems with technology. We recognize that our employees and our clients are our strengths as the diverse talents and opportunities they bring to the table enable us to grow as a global platform and they are causally linked with our success. We provide strategic and technical advice, and we have expertise in areas covering Artificial Intelligence, Cloud Migration, Custom Software Development, Data Analytics Infrastructure & Cloud Solutions, Cyber Security Services, etc. We make reasonable accommodations for clients and employees and we do not discriminate based on any protected attribute including race, religion, color, national origin, gender sexual orientation, gender identity, age, or marital status. We also are a Google Cloud partner company. We align strategy with execution and provide secure service solutions by developing and using the latest technologies that thrive our resources to deliver industry-leading capabilities to our clients and customers, making it convenient for our clients to do business with InterSources Inc. Our teams also drive growth by refining technology-driven client experiences that put the users first, providing an unparalleled experience. This results in strengthening the core technologies of clients, enabling them to scale with flexibility, create seamless digital experiences and build lifelong relationships.
