Golang Job: Staff Software Engineer

Your Responsibility

• Influence, design and create new architectures, standards, and methods for large-scale enterprise systems.

• Design, write and build tools to improve the reliability, latency, availability and scalability of Walmart e-commerce/Retail and Enterprise products.

o Engender reliability and availability starting with metrics and measurements.

o Enable scaling by providing tools, developing training and/or augmenting processes.

o Build tools/automate to prevent re-occurrence of problem 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

• Root-cause analysis complex problems involving multiple parties, networks, hardware, and software that relate to scaling and performance.

• Secure the system from issues, be they real, perceived, or notional.

• Experience with containerization and container platforms. (e.g., Docker, Kubernetes, Docker EE, OpenShift, Mesosphere)

Additional responsibilities may include:

• Create systems engineering and architectural documentation to be used by others to build and maintain systems.

• Scripting and Development responsibilities: Develop software in several modern languages. Develops large/complex database-backed systems and understands DB schema and query performance. Utilises professional best practices in day-to-day work like revision control, unit testing, or other. Applies statistical data analysis techniques.

• Networking responsibilities: Understanding and performing TCP dumps, snoop, and other network sniffers. Understands and applies knowledge of most protocols (TCP/IP, HTTP, UDP, etc.)

• Application Technologies: Provides recommendations and advice to the team and/or department in the areas of web services, OS, and storage, including being an active liaison to Development, QA, and the Business.

• Analyses systems and makes recommendations to prevent potential problems. Takes lead on issue resolution activities using knowledge of complex and company-wide systems.

• Lead end-to-end audit of monitors and alarms based on subsystem knowledge.

• Utilises time management and project management skills to lead the resolution of issues in a timely and organised manner, effectively communicating necessary information. May consult directly with developers or third-party vendors; provides subject matter expertise.

• Consistent exercise of independent judgment and discretion in matters of significance.

Your Qualifications

• Bachelor's Degree or Master’s Degree with 10+ years of experience in Computer Science or related field.
• Proficient in Golang.
• Experience in designing, investigating, analysing, 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.
• Experience with distributed version control like Git or similar
• Experience with IaaS and PaaS providers such as AWS, AZURE OpenStack, GCP
• Experience with containerisation and container platforms. (e.g., Docker, Kubernetes, Docker EE, OpenShift, Mesosphere). Experience with enterprise monitoring solutions like AppDynamics, New Relic, Prometheus, Graphite, Grafana, Nagios, Sensu and Splunk
• Familiarity with continuous integration/deployment processes and tools such as Jenkins, Maven, Nexus, etc.,