Sr. Software Test Engineer (Ethernet Switch)

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 an experienced and self-driven BIOS Engineer to join our firmware and system software team. In this role, you will be responsible for designing, developing, and maintaining BIOS/UEFI firmware for 800G datacenter switch platforms, working closely with hardware, BMC, PRoT, and cross-functional engineering teams to deliver reliable, secure, and high-performance firmware solutions throughout the full platform lifecycle. Key Responsibilities Design, develop, maintain, and debug BIOS/UEFI firmware based on switch hardware architecture and platform design requirements. Perform high-level and low-level design, implementation, and integration of new BIOS features including power sequencing, hardware initialization, PCI enumeration, and boot flow management. Lead or contribute as a platform owner or domain expert, providing technical guidance and mentoring to team members on BIOS architecture and bring-up. Collaborate with hardware, BMC, PRoT, and SONiC/NOS teams to bring up and validate BIOS on custom switch platforms, ensuring correct handoff between firmware layers. Implement and maintain secure boot, measured boot, and UEFI Secure Boot configurations aligned with platform security policy. Develop and maintain platform ACPI tables, SMBIOS structures, and UEFI device drivers for switch-specific hardware components. Participate in system integration, validation, and issue root-cause analysis across the full switch platform development cycle. Required Qualifications Hands-on experience with BIOS/UEFI firmware development using EDK2 or proprietary UEFI frameworks. Strong C/C programming skills, with solid understanding of embedded firmware architecture, code tracing, and low-level debugging. Good understanding of x86 or ARM processor initialization, memory controller bring-up, and platform boot flows. Solid knowledge of low-level hardware protocols commonly used in BIOS bring-up: PCIe, SPI (flash), I2C, SMBus, UART, GPIO, eSPI. Strong understanding of UEFI specifications including UEFI PI, SMM, DXE, PEI, BDS, and shell environments. Familiarity with ACPI specification, ASL programming, and SMBIOS table construction for platform hardware description. Ability to independently port BIOS firmware to custom hardware platforms or implement platform-specific initialization sequences. Experience participating in at least one complete hardware platform lifecycle (from bring-up to production). Bachelor's or Master's degree in Electronics, Computer Engineering, Software Engineering, or a related field. Preferred Qualifications Experience with datacenter switch or networking hardware platforms (e.g., 400G/800G switch ASICs, OCP-compliant designs). Familiarity with secure boot integration, TPM 2.0, measured boot, and PRoT/RoT attestation flows from the BIOS layer. Experience acting as a technical lead, platform owner, or domain expert in BIOS-related projects. Familiarity with OpenBMC or IPMI/Redfish interactions from a BIOS/BMC interface perspective (e.g., BIOS-BMC communication via IPMB, SSIF, or BT). Experience with hardware bring-up, manufacturing diagnostics, or platform validation tooling. Personal Attributes Passionate about firmware engineering, hardware bring-up, and learning new platform architectures. Pragmatic, open-minded, and solution-oriented in the face of complex hardware initialization challenges. Patient, responsible, and enthusiastic about delivering reliable and secure platform firmware. Strong logical thinking and communication skills across hardware, firmware, and software boundaries. A team player willing to mentor others and contribute beyond individual task ownership. BE AWARE OF FRAUD: When applying for a job at Jabil you will be contacted via correspondence through our official job portal with a jabil.com e-mail address; direct phone call from a member of the Jabil team; or direct e-mail with a jabil.com e-mail address. Jabil does not request payments for interviews or at any other point during the hiring process. Jabil will not ask for your personal identifying information such as a social security number, birth certificate, financial institution, driver’s license number or passport information over the phone or via e-mail. 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