Senior Engineer
SunoSalary not specified
Full Time
Senior (5 to 8 years)
Not SpecifiedCompensation
Senior (5 to 8 years)Experience Level
Full TimeJob Type
UnknownVisa
Technology, RetailIndustries
Requirements
- 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
- Strong fundamentals across Networking: TCP/IP, L2/L3 basics, MTU, bonding, routing concepts
- Strong fundamentals across 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 (plus)
- Exposure to cloud platforms (Azure/GCP/AWS/OpenStack) (plus)
Responsibilities
- 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
- 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
- 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
- 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
- Work closely with networking, compute, and cloud teams for solution delivery
- Mentor junior engineers in Ceph operations and troubleshooting
- Support documentation and process improvements
Skills
Ceph
Linux
Ansible
Python
distributed storage
erasure coding
iostat
tcpdump
atop
perf
OSD
MON
MDS
RGW
networking
cloud infrastructure
Walmart
Global retail chain offering affordable products
About Walmart
Walmart operates a chain of hypermarkets, discount department stores, and grocery stores, providing a wide variety of products at low prices to everyday consumers, families, and communities. The company combines physical retail locations with an e-commerce platform, allowing customers to shop for groceries, apparel, electronics, and household items both in-store and online. Walmart's efficient supply chain management and large-scale purchasing enable it to maintain affordability, setting it apart from competitors. The company also offers financial services and health and wellness services, including pharmacies and vision centers. Walmart's goal is to save people money and support communities, as demonstrated by its efforts during the COVID-19 pandemic and its commitment to social responsibility, including programs for veterans and military families.
Bentonville, ArkansasHeadquarters
1962Year Founded
$5,515MTotal Funding
IPOCompany Stage
Financial Services, Consumer GoodsIndustries
10,001+Employees
Benefits
PTO: Paid vacation, sick time, personal time and holiday time
10% discount on regularly priced general merchandise and fresh fruits and vegetables
6% 401(k) match to all employees, including hourly workers, after one year
Roth IRA available
Associate Stock Purchase Plan
maximum and eligible preventive care covered at 100%
Health reimbursement plans
Risks
Rising U.S. labor costs could pressure profit margins.
Amazon's grocery delivery expansion threatens Walmart's market share.
Fintech investments expose Walmart to financial regulatory risks.
Differentiation
Walmart's omnichannel strategy integrates physical and online retail seamlessly.
The company offers a wide range of products at consistently low prices.
Walmart's commitment to community support enhances its brand reputation.
Upsides
Walmart's investment in fintech expands its financial services offerings.
Robotics integration in distribution centers boosts operational efficiency.
Culturally themed product lines attract diverse customer segments.
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