Jabil
Diagnostics(DIAG)Engineer–Wireline
Neural analysis suggests this role is
optimal for Mid candidates.
“Diagnostics (DIAG) Engineer – Wireline at Jabil. Skills: Hardware diagnostics, C/C++ programming, Linux, Switch hardware. Develop and maintain diagnostic firmware/utilities. Develop hardware test coverage”
What You'll Achieve.
Diagnostic suite will be the primary tool used to qualify hardware from EVT through mass production and RMA
Industry & Context.
Isolate failures across silicon / board / firmware boundaries; Root-cause analysis of field returns and customer-reported hardware issues
What They're Looking For.
Must Have
Hands-on experience developing hardware diagnostics, BIST, or low-level validation tools on server, switch, or embedded platforms, C/C++ programming with solid debugging skills, Solid understanding of Linux user-space and kernel-space, Working knowledge of low-level hardware interfaces, Familiarity with switch hardware concepts, Ability to read schematics, board layouts, and component, Experience supporting at least one full hardware product cycle (EVT → DVT → PVT → MP), Bachelor's or Master's degree in Electronics, Electrical Engineering, Computer Engineering, or a related field
What You'll Do.
Develop and maintain diagnostic firmware/utilities
Develop hardware test coverage
Implement port-level diagnostic tests
Develop and execute manufacturing test flows
Support hardware bring-up
Build automation around DIAG
Participate in root-cause analysis
How You'll Work.
Team & Collaboration
Work closely with hardware, BMC, BIOS, SONiC, and validation teams; Collaborate with BMC, BIOS, and SONiC teams on shared hardware abstraction, sensor access, and recovery paths; Work with operations to integrate DIAG into factory provisioning; Comfortable working with hardware engineers in the lab
Full Job Description
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 Role** We are seeking a Diagnostics (DIAG) Engineer to develop and maintain hardware diagnostic firmware and tools for our wireline switch platforms. In this role, you will design, implement, and execute hardware-level tests covering switch ASICs, CPU complex, memory, storage, PCIe, optical modules, and board peripherals — supporting bring-up, validation, manufacturing, and field debug across the full product lifecycle. You will work closely with hardware, BMC, BIOS, SONiC, and validation teams, and your diagnostic suite will be the primary tool used to qualify hardware from EVT through mass production and RMA. **Key Responsibilities** * Design, develop, and maintain diagnostic firmware/utilities for wireline switch platforms (e.g., Tomahawk 5 / Teralynx-class systems), including ONIE-launched DIAG environments. * Develop hardware test coverage across: switch ASIC, CPU, DDR, SPI/eMMC/SSD, PCIe, USB, I2C/PMBus devices, CPLD/FPGA, fan/thermal/power subsystems, optical modules (SFP/QSFP/OSFP and CPO), and front-panel ports. * Implement port-level diagnostic tests — link bring-up, PRBS, BER, eye margin, loopback (MAC/PCS/PMA), traffic generation, and signal integrity validation. * Develop and execute manufacturing test flows (ATE / FATP / system-level test) and work with operations to integrate DIAG into factory provisioning. * Support hardware bring-up: be the first responder on board-level issues, isolate failures acros
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