Systems and Infrastructure Engineer III
Walmart · Posted Nov 3
Retail, e-commerce, grocery, pharmacy, and membership warehouse services
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About the role
The Command and Control Center (CCC) team within Walmart's Global Technology Platforms organization acts as the nerve center for the company, collaborating with TDO, SRE, DevOps and engineering teams to keep critical e-commerce infrastructure stable and reliable. The team proactively maintains mission-critical infrastructure, cloud platforms, micro-services and tooling, and leads major incident response across global technology platforms. This Site Reliability Operations Engineer role focuses on monitoring and detecting issues before they impact customers, triaging and troubleshooting during major incidents, building automation and self-healing with SRE and DevOps partners, and driving observability and operational excellence.
What you will do
- The CCC Site Reliability Operations Engineer is responsible for pro-actively monitoring, detecting and resolving site issues before they become customer and availability impacting.
- Technically you will understand the full end to end stack and use this knowledge to detect errors/failures and take corrective action to mitigate.
- During a major incident, you will draw on your technical skills and knowledge to triage and troubleshoot, differentiating between symptom and cause, to help restore impacting issues.
- Actively provide data for and participate in root cause analysis.
- Define CCC onboarding process and ensure they are adhered to when accepting new systems into service.
- Share knowledge globally between CCC teams.
- Analyze systems and make recommendations to prevent possible incidents.
- Strive for continuous improvement and make recommendations based on CCC process.
- Act as a technical focal point for the CCC team.
- Transition observability projects in the command centre for better visibility.
- Other duties and responsibilities as assigned.
Skills used in this role
What the employer is looking for
- Xmatters workflow integration with scalability, resiliency and performance
- Assist Walmart Store/Distribution Center associate’s in their day-to-day issues related to store functions.
- Support through Call functioning for internal escalations.
- Follow the SOP for troubleshooting and get resolutions for issues reported by Store operations team.
- Must be able to do multitasking whenever needed.
- Flexible in Shift & Support hours
- Expert level understanding of incident management processes and procedures.
- Calm under pressure when participating in major incident response.
- Deep technical understanding of core infrastructure, cloud services, platforms and micro-services.
- Ability to understand and capture key data from logs at an expert level.
- Ability to understand traffics flows and key dependencies between services.
- Ability to effectively triage – be able to detect and determine symptom vs cause.
- Detect and quantify impact.
- Expert level troubleshooting skills using a diverse set of tools and methods
- Analyze trends to pro-actively prevent incidents.
- Focus on immediate restoration vs root cause.
- Research and recommend alternative actions for incident resolution – Develop procedures and documentation to support this.
- Create and maintain procedural documentation.
- Identify and drive continuous improvement efforts to reduce waste (eliminate, automate or streamline).
- Absorb knowledge and understand complex distributed systems - ability to share and impart this knowledge into your peer group and beyond.
- Build tools to improve visibility, pro-actively detect issues and restore system availability.
- Develop automation and self-healing with DevOps, Engineering and SRE partners.
- Strong focus on collecting and inferring metrics.
- Clear communication skills.
- Ability to contribute to multiple incidents at any given time.
- Analyze systems and make recommendations to prevent possible problems. Takes lead on issue resolution activities using knowledge of complex and company-wide systems.
- Scripting and software development to automate and help enhance existing solutions.
- Experience owning, developing and evangelizing a product.
- Ability to gather requirements and build solutions into a product.
- Evangelize operational excellence
- Candidate should have overall work experience of 3 to 4 years in IT operations domain with the following technical expertise.
- Experience building and scaling distributed, highly available systems
- Experience developing applications for a cloud environment such as Google Cloud Platform or Microsoft Azure
- Experience with frameworks/tools such as GIT, xMatters workflow integration, Service Now Integration etc
- Comfortable building metrics, monitoring, and alerting for micro-services
- 4+ years in an infrastructure, systems, engineering or development environment delivering operational excellence to highly complex distributed systems.
- Bachelor's Degree in Computer Science or a related field, or relevant work experience.
- Strong and demonstrable incident management skills with relevant experience in an enterprise organization.
- 3+ Years of relevant experience on Major Incident Management with ITIL4 Certification
- Experience and exposure working is a 24/7 operations support environment.
- Methodical and systematic problem-solving approach, combined with a solid awareness of ownership, initiative and drive.
- Experience investigating, analyzing and troubleshooting large scale enterprise systems.
- Networking knowledge and understanding of network concepts, such as different protocols (TCP/IP, UDP, ICMP, etc.), MAC addresses, IP packets, DNS, OSI layers, and load balancing).
- Programming experience in one or more of the following languages: Go, Java, Python, Ruby, Shell.
- Experience administering Unix/Linux in a production environment.
- Understanding of Unix/Linux systems from kernel to shell and beyond, taking in system libraries, file systems, and client-server protocols along the way.
- Experience working with and developing enterprise monitoring/tooling solutions like Grafana, Kibana, Splunk, Graphite, Nagios, New Relic and DynaTrace.
- Working knowledge of one or more cloud technologies such as AZURE, GCP and OpenStack.
- Working knowledge of CI/CD pipelines.
Benefits and support
- incentive awards for your performance
- maternity and parental leave
- PTO
- health benefits
About Walmart
Walmart Inc. is an American multinational retail corporation that operates a chain of hypermarkets, discount department stores, and grocery stores. As one of the world's largest companies by revenue, it serves millions of customers daily through physical stores and robust e-commerce platforms. The company is driven by a commitment to everyday low prices and an expanding suite of digital and convenience-focused services.
- Industry
- Retail
- Company size
- 2000000+ employees
- Founded
- 1962
- Location
- Bentonville, Arkansas, USA
- Funding stage
- Public Company
Leadership
President and CEO
Executive Vice President and Chief Financial Officer
Executive Vice President, Global Chief Technology Officer and Chief Development Officer
Executive Vice President and Chief Growth Officer
President and CEO, Walmart U.S.
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