Walmart

(USA) Principal, Software Engineer

Walmart
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1 day ago
Sunnyvale, CA, USAStaff+
H1B sponsor

Base Salary

$143k - $286k/yr

Responsibilities

  • Architect, deploy, and manage large-scale Ceph storage clusters across global production environments.
  • Design, develop, and maintain Ceph CSI and Cinder CSI drivers for persistent storage on containerized workloads.
  • Troubleshoot and optimize storage, Linux, and networking performance using tools including perf, blktrace, bpftrace, and tcpdump.
  • Build automation for cluster provisioning, lifecycle management, capacity expansion, monitoring, and operations using Ansible, Terraform, and Python.
  • Lead root-cause analysis for critical production incidents, mentor engineers, and contribute to Ceph and Kubernetes CSI open-source communities.

Requirements

  • 15+ years of experience in distributed storage systems and Linux infrastructure engineering, including 10+ years designing, deploying, and operating large-scale Ceph environments at petabyte scale.
  • Extensive experience developing, enhancing, and supporting Ceph CSI and Cinder CSI drivers for cloud-native containerized platforms.
  • Deep knowledge of Linux internals, kernel tuning, storage architectures, TCP/IP, BGP, RDMA, BlueStore, RocksDB, OSD architecture, and erasure coding.
  • Strong experience with system performance troubleshooting, perf, blktrace, tcpdump, bpftrace, eBPF, Python, Ansible, and Terraform.
  • Hands-on experience with Kubernetes, OpenStack including Cinder and Swift, and public clouds including AWS, Azure, and Google Cloud Platform.
  • Minimum qualification: either a bachelor’s degree in a relevant field and five years of software engineering experience, or seven years of software engineering experience.
  • Preferred qualifications include a relevant master’s degree and three years of software engineering experience, plus knowledge of WCAG 2.2 AA, assistive technologies, and digital accessibility best practices.

Benefits

  • Medical, vision, and dental coverage; 401(k), stock purchase, company-paid life insurance, disability coverage, company discounts, and other financial benefits.
  • PTO and/or PPTO, sick leave, parental leave, family care leave, bereavement leave, jury duty leave, voting leave, and military leave pay.
  • Adoption and surrogacy expense reimbursement.
  • Walmart-paid Live Better U education benefits covering tuition, books, and fees for programs ranging from high school completion through bachelor’s degrees and certificates.
  • The primary location is 1345 Crossman Ave, Sunnyvale, California; benefit eligibility depends on job classification and length of employment.
Walmart

About Walmart

10,000+ employees

Walmart is a global omnichannel retailer that sells groceries, general merchandise, and services through Walmart and Sam's Club stores and online marketplaces for consumers and small businesses. Its model spans physical retail, e-commerce, advertising, and a vast supply chain, plus pharmacy, health, and financial services. Founded in 1962 and headquartered in Bentonville, Arkansas, Walmart Inc. is a public company on the NYSE (WMT) operating in the U.S. and multiple international markets.

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