Senior Engineer
SunoSalary not specified
Full Time
Senior (5 to 8 years)
Not SpecifiedCompensation
Expert & Leadership (9+ years), Senior (5 to 8 years)Experience Level
Full TimeJob Type
UnknownVisa
Technology, RetailIndustries
Requirements
- 15–18 years of deep technical experience in distributed storage systems
- Strong expertise in Linux, networking, storage internals, and distributed systems
- Ability to diagnose complex issues spanning hardware, kernel, and Ceph layers
- Experience as a technical leader and subject matter expert (SME) in architecting resilient storage platforms
- Proficiency with tools such as perf, blktrace, iostat, tcpdump, bpftrace, atop, ceph tell/ceph health detail
Responsibilities
- Architect, deploy, and manage large-scale Ceph clusters across multiple production sites
- Ensure storage availability, data durability, and cluster resiliency through advanced CRUSH map configurations, erasure coding, and replication strategies
- Define upgrade strategy, cluster augmentation, node rebalancing, and hardware refreshes with minimal downtime
- Own end-to-end lifecycle management of Ceph, including OS/Kernel tuning, firmware upgrades, and hardware integration
- Identify, diagnose, and resolve performance bottlenecks across Ceph, Linux kernel, networking, and hardware layers
- Perform deep analysis of OSD, MON, MDS, RGW performance and optimize cluster parameters
- Debug network congestion, packet loss, latency, and RDMA/Ethernet issues impacting Ceph
- Drive root cause analysis (RCA) for critical production issues and provide long-term remediation
- Build and standardise automation for cluster deployment, expansion, and monitoring using Ansible, Terraform, and custom Python/Shell scripts
- Develop observability views for real-time monitoring of IOPS, throughput, latency, and cluster health
- Automate alerting, log analysis, and anomaly detection for proactive incident response
- Design storage solutions to scale to hundreds of nodes and multiple petabytes while ensuring high availability and fault tolerance
- Collaborate with compute and networking teams to integrate Ceph with Kubernetes, OpenStack, and VM workloads
- Research and implement new features like CephFS, RGW S3/Swift gateways, Bluestore optimizations, RocksDB tuning
- Evaluate next-gen hardware (NVMe SSD)
Skills
Ceph
distributed storage
Linux
networking
storage internals
distributed systems
performance tuning
troubleshooting
private cloud
kernel
automation
observability
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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