Senior Software Engineer

Walmart; California (MO); On-site; USD 90,000 - 150,000; Full time

Job summary

Join a dynamic team of Site Reliability Engineers at a leading retail giant, where you'll take ownership of system reliability and scalability. This role involves designing innovative tools to enhance the uptime of e-commerce and enterprise platforms, ensuring a seamless experience for millions of customers. You'll engage in capacity planning, automate processes, and influence architectural standards for large-scale systems. If you're passionate about building robust systems and thrive in a collaborative environment, this is an exciting opportunity to make a significant impact in the tech landscape of retail.

Qualifications

• 6+ years in software development, DevOps, or SRE roles.
• Experience with large-scale enterprise systems and troubleshooting.
• Strong understanding of Unix/Linux systems and networking.

Responsibilities

• Design and build tools to enhance reliability and scalability.
• Participate in capacity planning and demand forecasting.
• Conduct root-cause analysis of complex system issues.

Skills

Software Development

DevOps

Site Reliability Engineering

Problem-Solving

Networking

Unix/Linux Systems

Programming (Go, Java, Python, Ruby, Shell)

Automation

Education

Bachelor's Degree in Computer Science or related field

Master’s Degree in Computer Science or related field

Tools

Ansible

Docker

Kubernetes

AWS

Git

Jenkins

Dynatrace

Prometheus

Job description

Position Summary

As Site Reliability Engineers, we are a team of hybrid systems and software engineers who take ownership of reliability, scalability, and other issues related to uptime and availability of Walmart's e-commerce/Retail and Enterprise platforms. We design and build tools to improve reliability, enable scaling, and prevent re-occurrence of problems to mission-critical products/services. We influence new architectures, standards, and methods for large-scale enterprise systems, and participate in on-call rotation to secure the system from issues.

What you’ll do:
Site Reliability Engineers are hybrid systems and software engineers who are responsible and take ownership for reliability, scalability, automation, and other issues related to uptime and availability of Walmart’s e-commerce/Retail and Enterprise platform. Our goal is to build, scale and guard the systems that delight the customers.

• Design, write and build tools to improve the reliability, latency, availability, and scalability of Walmart e-commerce/Retail and Enterprise products.
• Engender reliability and availability starting with metrics and measurements.
• Enable scaling by providing tools, developing training and/or augmenting processes.
• Build tools/automate to prevent re-occurrence of problems to mission-critical products/services.
• Augment existing instrumentation to build a cohesive picture of the characteristics of our systems with special attention to points of failure.
• Participate in capacity planning, demand forecasting, software performance analysis and system tuning.
• Develop a deep understanding of the numerous services and applications that come together to deliver Walmart e-commerce/Retail and Enterprise products.
• Design new tools to monitor and smart alerts that help discover failures/issues in a timely fashion and work with engineers to identify root cause and fix issues.
• Influence, design and create new architectures, standards, and methods for large-scale enterprise systems.
• Root-cause analysis of complex problems involving multiple parties, networks, hardware, and software that relate to scaling and performance.
• Participate in on-call rotation.
• Secure the system from issues, be they real, perceived, or notional.
• High focus on collecting and inferring metric documentation to be used by others to build and maintain systems.
• Scripting and development responsibilities.
• Experience with configuration management tools such as Ansible, Saltstack, Chef, and Puppet.
• Build and drive the automation systems that maintain system health.
• Eliminate Single Points of failure and test disaster recovery and HA regularly.

What you’ll bring:

• 6+ years in a software development, DevOps role, or SRE role.
• Experience in designing, investigating, analyzing, and troubleshooting large-scale enterprise systems.
• Methodical and systematic problem-solving approach, combined with a solid awareness of ownership, initiative, and drive.
• Fluency with running services at scale; In-depth understanding of Unix systems internals and networking.
• Networking knowledge and in-depth understanding of network concepts, such as different protocols (TCP/IP, UDP, ICMP, etc.), MAC addresses, IP packets, DNS, OSI layers, and load balancing.
• 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 administering Linux systems in a production environment.
• Programming experience in one or more of the following languages: Go, Java, Python, Ruby, Shell.
• Bachelor's Degree in Computer Science or a related field, or relevant work experience.
• Experience with distributed version control like Git or similar.
• Experience with IaaS and PaaS providers such as AWS, AZURE, OpenStack, GCP.
• Experience with containerization and container platforms (e.g., Docker, Kubernetes, Docker EE, OpenShift, Mesosphere).
• Experience with enterprise monitoring solutions like Dynatrace, AppDynamics, New Relic, Prometheus, Graphite, Grafana, Nagios, Sensu, and Splunk.
• Familiarity with continuous integration/deployment processes and tools such as Jenkins, Maven, Nexus, etc.

Minimum Qualifications:

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

• Option 1: Bachelor's 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, Computer Engineering, Computer Information Systems, Software Engineering, or related area and 1 year's experience in software engineering or related area.
• Knowledge in creating inclusive digital experiences, implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly.

Primary Location:

680 West California Avenue, Sunnyvale, CA 94086-4834, United States of America