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Senior Systems Infrastructure Engineer


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Job Details

JobId: 840717
JobTitle: Senior Systems Infrastructure Engineer
State: CA

Position Summary

The Walmart eCommerce production environment is enormous! So you know that the systems that support such an environment would be complex, challenging and cutting edge. The Sr. Systems Infrastructure Engineer is responsible for managing complex projects and teams covering everything from DNS, LDAP, Operating Systems, Standalone Servers, Server Virtualization, Automation, Private Cloud and Server Security administration in a mission-critical, 24/7 environment.

If building critical system engineering infrastructure as a service for one of the world’s biggest eCommerce Retail companies, this could be for you!


Position Description

  • Design, develop, install, and maintain operating systems, utilities, and applications software on computing systems

  • Resolve system emergencies with significant impact on the integrity of user data and systems

  • Design, configure, implement, and maintain system security strategies, policies, and procedures

  • Establish software/hardware standards and systems policies and procedures

  • Engage in long-term strategic planning with regard to systInfems development and integration

  • Conceptualize and implement systems within broad technical or structural frameworks

  • Perform capacity planning for system configuration, software services, network services, load distribution, and service interrelationships among computer systems

  • Act as project leader on large-scale computing projects in which strong technical, directional, and personal leadership is necessary; assign and oversee the work of other system administrators as needed

  • Manage vendor relationships and cost effective hardware and software maintenance agreements with vendors

  • Other duties as assigned

Minimum Qualifications

  • Experience managing systems via an automated configuration management system such as Chef, Ansible, Bladelogic, Puppet. Experience creating and managing native OS packages desirable

  • Experience with complex multi-system platforms and vendors

  • Experience coordinating multi-system and computing environments in independent computing facilities

  • Experience developing/implementing a business continuation and disaster recovery plan

  • Proven ability to develop appropriate plans to meet computing needs

  • Demonstrated expertise in clustering such as VCS, Red Hat Clustering, Pacemaker

  • Expert ability to program in multiple programming languages in multiple operating systems

  • Proven ability to lead and work on large/complex system deployment projects in a team environment

  • Advanced knowledge of security trends and best practices

  • Solid systems engineering experience and excellent programming skills in languages like Java, Python, Perl, Ruby, Java, C, C++, PHP. Demonstrated expertise is required in at least two of those languages, including Perl

  • Demonstrated expertise managing Linux-based systems and services at scale, including experience managing hardening high-value systems against attackers. Experience with maintaining Windows-based systems and services a plus

  • Demonstrated expertise working effectively in a shared software development environment, including version control, bug tracking, release management, and code review. Experience with Git also a requirement

  • Demonstrated experience supporting Active Directory and Centrify authenticating to Linux systems including administration, authentication, and integration

  • Demonstrated experience integrating enterprise architecture with cloud systems is desirable

  • Comfort with public speaking. He or she should be able to give a detailed technical presentation, training, or high-level executive briefing

  • Knowledge of the landscape of the data storage systems such as SSD, SAS, SAN, NAS, DAS technologies

  • Bachelor's degree in computer science, IT or related field.

Additional Preferred Qualifications

  • Working experience with containers such as dockers and kubernetes is desirable

  • Demonstrated experience integrating LDAP with keystone is desirable

  • Demonstrated experience building end-to-end automation for bare metal service is highly desirable

  • Demonstrated expertise in clustering such as VCS, Red Hat Clustering, Pacemaker is desirable

  • Demonstrated expertise in Infoblox DNS in-depth troubleshooting is a plus

Company Summary

Walmart Global eCommerce is comprised of, VUDU,, and our technical powerhouse @WalmartLabs. Here, innovators incubate next gen e-commerce solutions in real-time. We integrate online, physical, and mobile shopping experiences for billions of customers around the globe. How do we do it? We continuously build and invest in new technology including open source tools and big data innovations. Data scientists, front and back-end engineers, product managers, and web and UX/UI teams collaborate alongside e-commerce experts to envision, prototype, and bring revolutionary ideas to life in a dynamic, flexible and fun work culture.

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