Principal, software engineer

About Team

Order Life Cycle / Fulfilment Management. We are looking for a Principal Software Engineer to be a technical leader and architect within our International Order Management & Fulfilment team. In this role, you will set the technical vision and architectural direction for systems that power the entire order lifecycle — from placement through fulfilment and post-purchase — across multiple international markets including Mexico (MX), Canada (CA), Chile, and beyond.

This is a high-impact, high-visibility role where you will drive platform-level decisions, define engineering standards, mentor senior engineers, and own the technical roadmap for systems processing millions of orders across diverse regulatory, logistical, and business environments. You will be the go-to technical authority for order orchestration, fulfilment routing, and post-purchase services at a global scale.

What You'll Do

Define Technical Vision & Architecture: Own the long-term architectural roadmap for OMS/FMS platforms, ensuring scalability, resilience, and extensibility across all international markets.

Design & Architect Distributed Systems: Lead the design of high-throughput, low-latency backend systems for order orchestration, fulfillment decision engines, and post-purchase workflows supporting millions of daily transactions.

Drive Multi-Market Platform Strategy: Architect systems that are inherently multi-tenant and configurable — supporting market-specific business rules, tax regulations, payment methods, carrier integrations, and fulfillment models for MX, CA, Chile, and future markets without code forks.

Lead Order Services Orchestration: Own the design and evolution of the Order Services Orchestration Layer — coordinating order state transitions, event-driven workflows, and cross-domain integrations (payments, inventory, logistics, returns).

Drive Engineering Excellence: Establish coding standards, design patterns, review practices, and architectural decision records (ADRs) that raise the bar for the entire engineering organization.

Mentor & Grow Engineers: Provide technical mentorship to Staff, Senior, and mid-level engineers. Conduct architecture reviews, lead design sessions, and foster a culture of technical rigor and continuous learning.

Influence Cross-Org Strategy: Collaborate with Product, Platform, and peer Principal Engineers across Walmart to align technical strategies, drive shared platform adoption, and reduce duplication across the international tech ecosystem.

Champion Operational Excellence: Drive SRE best practices including observability, alerting, chaos engineering, capacity planning, and incident management for mission-critical order systems.

Leverage AI & Emerging Technologies: Evaluate and integrate AI/ML capabilities (e.g., intelligent fulfillment routing, anomaly detection, predictive demand signals) into the order platform. Champion AI literacy across the team and identify opportunities where generative AI and automation can accelerate engineering velocity.

Own Technical Risk & Decision-Making: Make high-stakes technical decisions on build-vs-buy, technology selection, migration strategies, and deprecation plans with clear reasoning and organizational alignment

What You Will Bring12+ years of hands-on software engineering experience, with 5+ years in a principal, staff+, or architect-level role.

Deep expertise in backend systems: Java (Spring Boot, Spring Cloud), microservices architecture, RESTful & gRPC APIs, and event-driven design.

Distributed systems mastery: Proven track record designing systems with Kafka/event streaming, NoSQL databases (Cassandra, MongoDB, Cosmos DB), caching (Redis), and relational stores — at scale.

Architecture leadership: Experience defining and driving enterprise-level architectural decisions, producing ADRs, leading design reviews, and mentoring architects.

Multi-market/multi-tenant platform experience: Demonstrated ability to build configurable, market-agnostic platforms that adapt to diverse regulatory, business, and operational requirements without code branching.

Order Management / Fulfillment domain expertise: Deep understanding of order lifecycle, fulfillment orchestration, inventory allocation, shipping/logistics integration, and post-purchase flows (returns, refunds, exchanges).

Cloud-native expertise: Production experience with Kubernetes, Docker, CI/CD pipelines, infrastructure-as-code, and cloud platforms (Azure/GCP).

Strong communication & influence: Ability to articulate technical vision to both engineering teams and executive stakeholders; experience driving consensus across organizational boundaries.

AI literacy: Understanding of machine learning concepts, familiarity with AI/ML integration patterns, and ability to identify practical AI opportunities within engineering workflows.

Nice-to-Have

Experience with international e-commerce — localization, cross-border logistics, multi-currency, and regional compliance (tax, data residency).

Hands-on experience with AI/ML tooling — LLMs, MLOps, feature stores, or real-time inference pipelines.

Familiarity with Walmart's internal tech stack — WCNP, Kafka (Walmart flavor), Strati, CCM, OneOps/Concord, ElementAI.

Experience with chaos engineering frameworks, DR drills, and multi-region failover architectures.

Background in graph-based or rules-engine-based order orchestration systems.

Open-source contributions or published technical writing (blogs, conference talks, patents).

Experience building developer platforms or internal frameworks adopted across multiple teams.

Tech StackLanguages & Frameworks

Java 17+, Spring Boot, Spring Cloud, Reactive Java

Messaging & Streaming

Kafka, Event-Driven Architecture, CQRS/Event Sourcing

Databases

Cassandra, MongoDB, Cosmos DB, Redis, MySQL

Infrastructure

Kubernetes (WCNP), Docker, Azure/GCP, Terraform

CI/CD & Observability

Concord/LooperPro, Grafana, Splunk, Prometheus, PagerDuty

AI & Automation

LLM integration, ML model serving, AI-assisted development tools

About Walmart Global Tech

Imagine working in an environment where one line of code can make life easier for hundreds of millions of people. That's what we do at Walmart Global Tech. We're a team of software engineers, data scientists, cybersecurity expert's and service professionals within the world's leading retailer who make an epic impact and are at the forefront of the next retail disruption. People are why we innovate, and people power our innovations. We are people-led and tech-empowered.

We train our team in the skillsets of the future and bring in experts like you to help us grow. We have roles for those chasing their first opportunity as well as those looking for the opportunity that will define their career. Here, you can kickstart a great career in tech, gain new skills and experience for virtually every industry, or leverage your expertise to innovate at scale, impact millions and reimagine the future of retail.

Walmart's culture sets us apart, and we know being together helps us innovate, learn and grow great careers. This role is based in our Bangalore office for daily work, with the flexibility for associates to manage their personal lives.

Benefits

Beyond our great compensation package, you can receive incentive awards for your performance. Other great perks include a host of best-in-class benefits maternity and parental leave, PTO, health benefits, and much more.

Belonging

We aim to create a culture where every associate feels valued for who they are, rooted in respect for the individual. Our goal is to foster a sense of belonging, to create opportunities for all our associates, customers and suppliers, and to be a Walmart for everyone.

At Walmart, our vision is everyone included. By fostering a workplace culture where everyone is—and feels—included, everyone wins. Our associates and customers reflect the makeup of all 19 countries where we operate. By making Walmart a welcoming place where all people feel like they belong, we're able to engage associates, strengthen our business, improve our ability to serve customers, and support the communities where we operate.

Equal Opportunity Employer

Walmart, Inc., is an Equal Opportunities Employer – By Choice. We believe we are best equipped to help our associates, customers and the communities we serve live better when we really know them. That means understanding, respecting and valuing unique styles, experiences, identities, ideas and opinions – while being inclusive of all people.

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...Block- 1, Prestige Tech Pacific Park, Sy No. 38/1, Outer Ring Rd Kadubeesanahalli , India