Position Summary...
We're building a next generation Digital Out of Home platform for Walmart owned retail properties that manages campaigns end to end-from targeting and real time content delivery to measurement. The platform supports over 4,000 stores and uses low latency decisioning to control what runs on in store screens in real time. Backend engineers work on Kafka based data ingestion pipelines, build scalable, containerized API services deployed on Kubernetes, and design persistence layers using SQL and NoSQL databases to power attribution and measurement from reach to sales lift."
A principal engineer on this project operates well beyond individual services and features, with responsibility for technical direction, system evolution, and engineering excellence across the platform.
What you'll do...
Set technical direction for core backend systems, including Kafka-based ingestion pipelines, real-time decisioning services, and measurement/attribution workflows.
Design and evolve scalable service architectures running in Kubernetes, ensuring systems remain reliable, observable, and easy to operate as scale and complexity grow.
Own foundational data decisions, including schema design, data flows, and access patterns across SQL and NoSQL stores that support both real-time use cases and downstream analytics.
Drive reliability and performance at scale, identifying and addressing failure modes in systems that operate continuously across 4,000+ retail locations.
Lead architecture and design reviews, guiding teams through complex tradeoffs around latency, consistency, scalability, and operational risk.
Mentor senior engineers and raise the technical bar, acting as a force multiplier across teams by sharing best practices and technical insight.
Partner closely with product and cross-functional stakeholders to translate high-level business goals into durable, long-term technical solutions.
Anticipate future platform needs, proactively shaping the system to support new capabilities while maintaining simplicity and maintainability.
What You Bring?
An ideal candidate brings deep technical experience, strong system-level thinking, and the ability to influence both architecture and people.
10+ years of experience building and operating large-scale, enterprise-grade backend systems in production environments.
Strong background designing and working with distributed architectures, including systems that operate under real-time, high-availability, and fault-tolerance constraints.
Hands-on experience designing and developing containerized backend services, with production deployments on platforms such as Kubernetes.
Proven experience building and operating backend streaming systems, including event-driven or message-based architectures.
Deep experience with SQL and NoSQL databases, including:
Data modeling and schema design
Choosing appropriate storage technologies based on access patterns and scale
Managing schema evolution, migrations, and backward compatibility
Designing for performance, consistency, and reliability
Demonstrated ability to mentor senior engineers, lead design discussions, and raise the overall technical bar across teams.
Excellent communication skills, with the ability to clearly articulate complex technical concepts, influence architectural decisions, and collaborate effectively with engineering, product, and business stakeholders.
Benefits:
Benefits: Beyond our great compensation package, you can receive incentive awards for your performance. Other great perks include 401(k) match, stock purchase plan, paid maternity and parental leave, PTO, multiple health plans, and much more.
Sunnyvale, California US-11789: The annual salary range for this position is $143,000.00 - $286,000.00
Hoboken, New Jersey US-10279: The annual salary range for this position is $132,000.00 - $264,000.00
Additional compensation includes annual or quarterly performance bonuses.
Additional compensation for certain positions may also include :
- Stock
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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 5 years' experience in software engineering or related area.
Option 2: 7 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 3 years' experience in software engineering or related area., We value candidates with a 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. The ideal candidate would have knowledge of accessibility best practices and join us as we continue to create accessible products and services following Walmart's accessibility standards and guidelines for supporting an inclusive culture.
Primary Location...
809 11th Ave, Sunnyvale, CA 94089-4731, United States of America
Walmart and its subsidiaries are committed to maintaining a drug-free workplace and has a no tolerance policy regarding the use of illegal drugs and alcohol on the job. This policy applies to all employees and aims to create a safe and productive work environment.
