Principal Software Engineer – Experimentation Platform

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California, Bentonville (MO, AR)

On-site

USD 190,000 - 270,000

Full time

6 days ago

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Job summary

Walmart is seeking an experienced engineering leader to drive the technical direction for its experimentation backend services. You will design, implement, and scale large‑scale systems and pipelines while mentoring senior engineers and elevating the engineering culture.

You will partner with data scientists, product managers, and engineering leaders to define roadmaps, lead cross‑functional initiatives, and ensure reliability, security, and observability across mission‑critical platforms.

Qualifications

Bachelor's Degree in Computer Science or Related Area (required).
Proven technical leadership of a team of engineers.
Experience designing, developing, testing, and maintaining large-scale systems.

Responsibilities

Drive the technical direction for experimentation backend services.
Design, develop, and scale efficient and reliable systems and pipelines.
Provide technical mentorship and elevate engineering culture.
Lead platform-level system design and architecture proposals.

Skills

Technical Leadership

Java, Scala, Lua, Rust Expertise

Large-Scale System Design

Reliability Engineering

Strategic Thinking

Exceptional Communication

Project Management

Influencing Technical Decisions

Education

Bachelor's Degree in Computer Science or Related Area

Tools

Cloud‑Based Systems

Compute Environments

Open‑Source Frameworks

Job description

Drive the technical direction for Walmart’s experimentation backend services
Design, develop, and scale efficient and reliable systems and pipelines
Provide technical mentorship and elevate engineering culture
Partner with data scientists, product managers, and engineering leaders
Lead and participate in medium- to large-scale projects from requirements review through design, implementation, testing, troubleshooting, and delivery
Troubleshoot business and production issues and lead resolution plans
Provide business solutions through stakeholder partnerships and process management
Define the technical roadmap for experimentation platform services
Lead platform-level system design, architecture proposals, design reviews, and technical direction
Drive cross-organizational initiatives with analytics, platform, and product teams
Ensure operational excellence, incident mitigation, and root cause analysis
Mentor Staff Engineers and Senior Engineers
Evaluate and integrate emerging technologies through proof-of-concepts and adoption strategies
Advance code quality, automation, observability, and security best practices

Requirements

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; or 7 years’ experience in software engineering or related area
Proven technical leadership of a team of engineers
Experience designing, developing, testing, and maintaining large-scale systems
Expertise in one or more of Java, Scala, Lua, or Rust
Experience maintaining and deploying compute environments across local and cloud-based systems
Ability to proactively manage projects across multiple teams and troubleshoot issues
Ability to influence technical decisions across multiple teams or organizations
Strong strategic thinking
Exceptional communication skills
Ability to identify emerging technologies and guide their adoption
Expertise in reliability engineering, observability, platform governance, and operational excellence for mission‑critical systems
Preferred: experience with experimentation/A‑B testing, feature flags and risk‑mitigated deployments, data solutions and AI/ML products, and open‑source frameworks, standards, or libraries
Ability to work in a drug‑free workplace and comply with Walmart's no‑tolerance policy regarding illegal drugs and alcohol on the job

Core Competencies

Demonstrates expertise in designing and developing large‑scale systems, with a strong focus on reliability engineering, observability, and operational excellence. Proven ability to lead technical direction, mentor engineering teams, and drive cross‑organizational initiatives.

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