Principal, Software Engineer

Walmart-posted 3 months ago
$132,000 - $264,000/Yr
Full-time • Senior
Herndon, VA
General Merchandise Retailers
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As a Principal Engineer, you will play an important role in shaping the technical direction and running Walmart Global WAN and Backbone network. Global WAN team is responsible for designing and deploying Backbone and WAN network that connects all of Walmart's PoPs, Data Centers, Retail Stores, Distribution Centers and Home offices. You will collaborate closely with multiple teams such as network architecture, Data Center Networks, Edge Networks, and most importantly across the whole of the network engineering and operations team. You will drive innovation and help produce elegant and scalable network solutions. As a Fortune #1 company, our work impacts millions of associates globally. We strive to continuously improve technology and products to help managers and associates so they can focus on what matters most - supporting our customers and members.

  • Architect and lead the design of high-performance, scalable WAN and backbone networks.
  • Develop long-term strategy and roadmap for backbone infrastructure, considering future traffic growth, emerging technologies, and evolving business needs.
  • Participate in on-call rotation to troubleshoot and resolve complex network challenges across multi-vendor and hybrid environments.
  • Assist with large scale proof of concepts from conception to deployment from an engineering and operations perspective.
  • Collaborate with internal stakeholders, including Cloud, Security, and Infrastructure teams, to align network strategies with business objectives.
  • Mentor and lead a team of network engineers, fostering a culture of technical excellence and innovation.
  • Communicate complex technical concepts effectively to both technical and non-technical stakeholders on specific product areas.
  • Document architectural decisions, design patterns, policies, and best practices to facilitate knowledge sharing across the broader organization.
  • 8+ years of experience in network architecture, network engineering, and network operations.
  • Experience with large scale networks such as in a SaaS, ISP, or cloud provider network.
  • Expertise in routing protocols (BGP, OSPF, IS-IS), MPLS, Segment Routing, SD-WAN, and EVPN/VXLAN.
  • Knowledge of optical transport technologies, including DWDM and coherent optics.
  • Experience with IPv6, Internet Peering, DDoS mitigation techniques, RPKI, and Multicast is a major plus.
  • Experience with network automation using Python, Ansible, or equivalent scripting languages.
  • Experience with network modeling and data modeling techniques.
  • Strong skills in both verbal and written communications, equally adept in communicating in all directions.
  • Strong system architecture, problem solving, and data-driven decision-making skills.
  • Proven experience with project delivery for large, mission-critical, cross-functional projects.
  • Experience with network observability, monitoring, and DevOps.
  • Advanced certifications such as CCIE, JNCIE, or equivalent is a plus.
  • Master'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.
  • Background in creating inclusive digital experiences, demonstrating knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly.
  • Incentive awards for performance.
  • 401(k) match.
  • Stock purchase plan.
  • Paid maternity and parental leave.
  • PTO, including sick leave.
  • Multiple health plans.
  • Short-term and long-term disability.
  • Company discounts.
  • Military Leave Pay.
  • Adoption and surrogacy expense reimbursement.
  • Live Better U education benefit program.
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