At Jabil (NYSE: JBL), we are proud to be a trusted partner for the world's top brands, offering comprehensive engineering, supply chain, and manufacturing solutions. With 60 years of experience across industries and a vast network of over 100 sites worldwide, Jabil combines global reach with local expertise to deliver both scalable and customized solutions. Our commitment extends beyond business success as we strive to build sustainable processes that minimize environmental impact and foster vibrant and diverse communities around the globe.
About the RoleWe are looking for a Senior Switch Software Engineer to own the SDK and BSP layer of our data center Ethernet switch platforms. You will lead platform bring-up from first power-on through mass production, serve as a technical point of contact for silicon vendors and customers, and help grow the engineers around you.
Key ResponsibilitiesSwitch SDK & SAI
- Own switch SDK porting, configuration, and upgrades (Broadcom SDK-XGS / SDKLT, Marvell CPSS / Teralynx SDK) for new platforms, including port mapping, SerDes lane mapping, and media/pre-emphasis settings.
- Integrate and customize vendor SAI implementations for SONiC and other NOS, and resolve SDK/SAI interaction issues.
- Bring up high-speed links and transceivers (112G/224G PAM4, QSFP-DD/OSFP, CMIS), debugging with PRBS, FEC/BER, and eye diagnostics.
BSP & Platform
- Lead BSP development for x86 and ARM switch platforms: ONIE, bootloader (GRUB/U-Boot), Linux kernel configuration, and device tree/ACPI.
- Design and maintain Linux kernel and platform drivers for CPLD/FPGA, I2C/SMBus, LPC, PCIe, and fan/PSU/thermal management (SONiC platform API / pmon).
Technical Ownership
- Define platform software design for new programs and lead design and code reviews.
- Drive root-cause analysis of cross-domain issues together with hardware engineers and Broadcom/Marvell FAEs.
- Support EVT/DVT/PVT builds and manufacturing diagnostics, and represent the team in customer technical reviews.
- Mentor and guide engineers on SDK, driver, and debugging practices.
Required Qualifications- B.S. or M.S. in Computer Science, Electrical Engineering, Computer Engineering, Communications, or a related field.
- 5+ years of embedded or system software experience, including 3+ years on network switch or server platforms.
- Hands-on experience with at least one Ethernet switch ASIC SDK (Broadcom or Marvell).
- Expert C programming skills; working proficiency in C++ and Python.
- Strong Linux kernel and driver development skills: interrupts, DMA, PCIe, I2C, and concurrency.
- Delivered platform bring-up of at least one switch or server product from EVT to mass production.
- Solid knowledge of L2/L3 forwarding (MAC learning, VLAN, IP routing, ARP, LAG, ECMP).
- Good English communication skills for working directly with vendors and customers.
Preferred Qualifications- Experience with Broadcom Tomahawk / Trident / Jericho or Marvell Prestera / Teralynx silicon.
- SONiC platform porting experience (device/platform packages, pmon, syncd) or ONIE.
- PAM4 SerDes tuning and CMIS transceiver management at 400G/800G.
- Data center / AI fabric features: RoCEv2, PFC/ECN, buffer tuning.
- Experience with Keysight Ixia or Spirent traffic generators.
- Ability to read schematics and use lab tools (oscilloscope, logic analyzer, I2C analyzer).
Jabil, including its subsidiaries, is an equal opportunity employer and considers qualified applicants for employment without regard to race, color, religion, national origin, sex, age, disability, genetic information, veteran status, or any other characteristic protected by law.
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