SENIOR, SOFTWARE ENGINEER

Position Summary...

What youll do...

About the Team

Our Private Cloud Storage Engineering team is responsible for building and operating some of the largest-scale Ceph storage clusters in the industry, supporting mission-critical applications across Walmart s global ecosystem. With hundreds of PB of data under management across multiple production clusters, we provide the backbone of reliable, secure, and high-performance storage for business operations, customer platforms, and innovation workloads.

The team works at the intersection of distributed storage systems, Linux internals, networking, and cloud infrastructure, solving some of the toughest technical challenges in scalability, performance, and resilience. We embrace a culture of deep technical expertise, hands-on problem solving, and continuous learning, while driving adoption of automation, observability, and next-generation storage technologies.

As part of this team, you will collaborate with world-class engineers across compute, networking, security, and cloud to design end-to-end solutions, shape the future of enterprise storage platforms, and contribute to the broader open-source storage community.

What Youll Do:

Ceph Storage Architecture & Operations

• Deploy, operate, and maintain Ceph clusters supporting production workloads
  Manage cluster configuration, replication, erasure coding, capacity expansion, and upgrades

• Support OS, kernel, and hardware lifecycle activities for Ceph nodes

• Execute changes and maintenance with minimal customer impact

Performance, Debugging & Troubleshooting

• Troubleshoot issues across Ceph, Linux, networking, and underlying hardware

• Analyze OSD, MON, MDS, and RGW performance for optimization opportunities

• Assist in RCA for incidents and help implement long-term fixes

• Use tools such as iostat, tcpdump, atop, perf, Ceph health commands for diagnostics

Automation & Observability

• Automate deployment, scaling, and day-2 operations using Ansible, Python/Shell

• Enhance monitoring dashboards to track IOPS, latency, throughput, and health

• Improve alerting, logging, and operational visibility for proactive operations

Scale & Platform Innovation

• Work with cross-infra teams to integrate Ceph with OpenStack Cloud (VMs) and Kubernetes environments

• Contribute to evaluation and validation of new hardware and Ceph features (Bluestore, CephFS, RGW)

• Participate in benchmarking and performance tests for continuous improvement

Collaboration & Knowledge Sharing

• Work closely with networking, compute, and cloud teams for solution delivery

• Mentor junior engineers in Ceph operations and troubleshooting

• Support documentation and process improvements

What Youll Bring

• 6-10 years experience in Linux systems engineering, distributed storage, or infrastructure operations

• 3-5+ years relevant hands-on experience with Ceph in production environments

• Strong fundamentals across:

  • Linux systems: performance tuning, system services, process analysis

  • Networking: TCP/IP, L2/L3 basics, MTU, bonding, routing concepts

  • Storage internals: Bluestore, replication/EC, RocksDB basics, caching layers

  • Experience with automation and scripting (Python/Shell)

  • Familiarity with Ansible or other config management tools

  • Exposure to Kubernetes/OpenStack storage backends (RBD, CSI drivers)

  • Working knowledge of observability stacks like Prometheus, Grafana, OpenObserve / ELK

• Experience operating large Ceph clusters (PB scale)

• Knowledge of RDMA/Ethernet high-performance networking

• Familiarity with backup/DR, S3 object workloads (RGW), CephFS

• Contributions to open-source storage projects is a plus

• Exposure to cloud platforms (Azure/GCP/AWS/OpenStack).

About Walmart Global Tech
Imagine working in an environment where one line of code can make life easier for hundreds of millions of people. That s what we do at Walmart Global Tech. We re a team of software engineers, data scientists, cybersecurity experts and service professionals within the world s leading retailer who make an epic impact and are at the forefront of the next retail disruption. People are why we innovate, and people power our innovations. We are people-led and tech-empowered.

We train our team in the skillsets of the future and bring in experts like you to help us grow. We have roles for those chasing their first opportunity as well as those looking for the opportunity that will define their career. Here, you can kickstart a great career in tech, gain new skills and experience for virtually every industry, or leverage your expertise to innovate at scale, impact millions and reimagine the future of retail.

Walmart s culture sets us apart, and we know being together helps us innovate, learn and grow great careers. This role is based in our [Bangalore/Chennai] office for daily work, with the flexibility for associates to manage their personal lives.

Benefits

Beyond our great compensation package, you can receive incentive awards for your performance. Other great perks include a host of best-in-class benefits maternity and parental leave, PTO, health benefits, and much more.

Belonging

We aim to create a culture where every associate feels valued for who they are, rooted in respect for the individual. Our goal is to foster a sense of belonging, to create opportunities for all our associates, customers and suppliers, and to be a Walmart for everyone.

At Walmart, our vision is "everyone included." By fostering a workplace culture where everyone is and feels included, everyone wins. Our associates and customers reflect the makeup of all 19 countries where we operate. By making Walmart a welcoming place where all people feel like they belong, we re able to engage associates, strengthen our business, improve our ability to serve customers, and support the communities where we operate.

Equal Opportunity Employer

Walmart, Inc., is an Equal Opportunities Employer - By Choice. We believe we are best equipped to help our associates, customers and the communities we serve live better when we really know them. That means understanding, respecting and valuing unique styles, experiences, identities, ideas and opinions - while being inclusive

Minimum Qualifications...

Outlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications.

Option 1: Bachelors degree in computer science, computer engineering, computer information systems, software engineering, or related area and 3 years experience in software engineering or related area.Option 2: 5 years experience in software engineering or related area.

Preferred Qualifications...

Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.

Master s degree in computer science, information technology, engineering, information systems, cybersecurity, or related area and 1 year s experience leading information security or cybersecurity projects, We value candidates with a background in creating inclusive digital experiences, demonstrating knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly. The ideal candidate would have knowledge of accessibility best practices and join us as we continue to create accessible products and services following Walmart s accessibility standards and guidelines for supporting an inclusive culture.

Information Technology - CISCO Certification - Certification Primary Location... G, 1, 3, 4, 5 Floor, Building 11, Sez, Cessna Business Park, Kadubeesanahalli Village, Varthur Hobli , India