Principal, Software Engineer
Walmart · Bengaluru · 14+ yrs experience · Posted 2026-07-14
Tech stack: Go, Java, JavaScript, Kotlin, Swift, TypeScript
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About the role
The Acquisition and Discovery Engineering team at Walmart is dedicated to providing a seamless and delightful shopping experience to millions of shoppers worldwide. As a Principal Software Engineer in this team, you will have the opportunity to work on top of the funnel shopping experience – Homepage, Content Pages for SEO and SEM, Search & Browse experiences, Deals and Item pages across mobile and web platforms.
This collaborative team made up of Engineering, UX, Product Management, Business and Analytics is rapidly iterating on new products and site features at scale. We deliver high performing solutions on our next generation front-end platform. Virtual Try-On, Gen AI integration, personalized complete-the-look, Video shopping, etc are just a few examples of the features developed by this team in collaboration with many other teams. Continuous experimentation, innovation and feedback by millions of customers makes this work even more exciting!
Responsibilities:
- We are looking for a Principal Software Engineer who can provide deep technical leadership for large-scale platform and e-commerce systems, solve complex cross-team engineering problems, and establish standards that improve delivery, reliability, performance, and long-term maintainability.
- Define and evolve the technical architecture for platform services, APIs, frameworks, and shared capabilities used by multiple engineering teams.
- Lead design of scalable, secure, resilient, and observable systems that support high-volume e-commerce use cases.
- Provide technical leadership across teams by reviewing designs, identifying architectural risks, and guiding engineers toward pragmatic solutions.
- Act as a hands-on technical expert for critical initiatives, including proof-of-concepts, reference implementations, code reviews, and complex problem resolution.
- Establish engineering standards for code quality, API design, testing, automation, release engineering, reliability, and operational readiness.
- Collaborate with product managers, engineering managers, architects, security, SRE, and dependent teams to align technical decisions with business outcomes.
- Identify and address technical debt, performance bottlenecks, reliability gaps, cost inefficiencies, and platform adoption barriers.
- Mentor engineers and technical leads by providing design guidance, technical coaching, and feedback that improves engineering capability across teams.
- Stay current with relevant technologies and evaluate adoption opportunities based on platform fit, operational maturity, security posture, and long-term maintainability.
- Leverage AI-powered development tools (e.g., Claude, Cursor, Copilot) to improve engineering efficiency.
- Create and maintain architecture decision records, design documents, API contracts, and operational playbooks.
Qualifications:
- Bachelor’s or master’s degree in Computer Science, Engineering, or a related technical discipline.
- 14+ years of software engineering experience, including significant experience designing and delivering large-scale distributed systems.
- Strong hands-on expertise in one or more modern programming languages such as Java, Kotlin, Swift, Go, JavaScript/TypeScript, or similar technologies.
- Deep understanding of system design, distributed architecture, APIs, data structures, algorithms, cloud-native engineering, and operational reliability.
- Experience with microservices, event-driven architecture, CI/CD, automated testing, observability, performance tuning, and production support practices.
- Proven ability to influence technical direction across teams and communicate trade-offs clearly to engineering and non-engineering stakeholders.
- Strong problem-solving skills with the ability to operate in ambiguous, high-impact technical areas.
- Experience mentoring senior engineers and contributing to engineering standards, architecture governance, and technical excellence programs.
- Prior experience in retail, marketplace, supply chain, payments, returns, or high-scale e-commerce platforms is preferred.
Qualifications
- Bachelor’s or master’s degree in Computer Science, Engineering, or a related technical discipline.
- 14+ years of software engineering experience, including significant experience designing and delivering large-scale distributed systems.
- Strong hands-on expertise in one or more modern programming languages such as Java, Kotlin, Swift, Go, JavaScript/TypeScript, or similar technologies.
- Deep understanding of system design, distributed architecture, APIs, data structures, algorithms, cloud-native engineering, and operational reliability.
- Experience with microservices, event-driven architecture, CI/CD, automated testing, observability, performance tuning, and production support practices.
- Proven ability to influence technical direction across teams and communicate trade-offs clearly to engineering and non-engineering stakeholders.
- Strong problem-solving skills with the ability to operate in ambiguous, high-impact technical areas.
- Experience mentoring senior engineers and contributing to engineering standards, architecture governance, and technical excellence programs.
- Prior experience in retail, marketplace, supply chain, payments, returns, or high-scale e-commerce platforms is preferred.
Responsibilities
- We are looking for a Principal Software Engineer who can provide deep technical leadership for large-scale platform and e-commerce systems, solve complex cross-team engineering problems, and establish standards that improve delivery, reliability, performance, and long-term maintainability.
- Define and evolve the technical architecture for platform services, APIs, frameworks, and shared capabilities used by multiple engineering teams.
- Lead design of scalable, secure, resilient, and observable systems that support high-volume e-commerce use cases.
- Provide technical leadership across teams by reviewing designs, identifying architectural risks, and guiding engineers toward pragmatic solutions.
- Act as a hands-on technical expert for critical initiatives, including proof-of-concepts, reference implementations, code reviews, and complex problem resolution.
- Establish engineering standards for code quality, API design, testing, automation, release engineering, reliability, and operational readiness.
- Collaborate with product managers, engineering managers, architects, security, SRE, and dependent teams to align technical decisions with business outcomes.
- Identify and address technical debt, performance bottlenecks, reliability gaps, cost inefficiencies, and platform adoption barriers.
- Mentor engineers and technical leads by providing design guidance, technical coaching, and feedback that improves engineering capability across teams.
- Stay current with relevant technologies and evaluate adoption opportunities based on platform fit, operational maturity, security posture, and long-term maintainability.
- Leverage AI-powered development tools (e.g., Claude, Cursor, Copilot) to improve engineering efficiency.
- Create and maintain architecture decision records, design documents, API contracts, and operational playbooks.