Principal, Software Engineer

Job title: Principal, Software Engineer in Sunnyvale, CA at Walmart Company: Walmart Job description: Position Summary... Join Our Exceptional GraphQL Team at Walmart! Are you an experienced Rust Developer with a passion for GraphQL looking to elevate your career? Walmart is excited to announce an open position on our elite GraphQL team, and we want YOU to be a part of it!About GraphQL team: At Walmart, we are pioneers in innovative technology solutions, and our GraphQL team is at the heart of our cutting-edge projects. Our team is composed of passionate developers, architects, and tech enthusiasts who thrive on collaboration, problem-solving, and pushing the boundaries of what’s possible with GraphQL and Rust.Our team works closely with our US stores and eCommerce business to better serve customers by empowering team members, stores, and merchants with technological innovation. From groceries and entertainment to sporting goods and crafts, Walmart U.S. offers an extensive selection that our customers value, whether they shop online at Walmart.com, through one of our mobile apps, or in-store. Focus areas include customers, stores and employees, in-store service, merchant tools, merchant data science, and search and personalization.What you'll do...

• Build Scalable APIs: Use Rust's performance and safety to develop high-performance backend services. Integrate GraphQL to provide a flexible and efficient interface for querying data.
• Microservices Architecture: Construct microservices with Rust for performance-critical components, leveraging GraphQL to streamline communication between services.
• End-to-End Applications: Design and develop complete applications where the backend is powered by Rust and communicates with the frontend via GraphQL, ensuring type safety and consistent data flow.
• Real-time Applications: Create real-time applications like chat apps or live dashboards where Rust handles the high concurrency and GraphQL subscriptions manage real-time data updates.
• API Gateway Services: Build API gateways in Rust to handle requests to multiple backend services, using GraphQL as an aggregator to offer a unified API to frontend clients.
• Mutation and Query Handling: Develop advanced query-handling mechanisms, including batching and intelligent caching, leveraging both Rust's performance benefits and GraphQL's query capabilities.
• Library Development: Contribute to or develop open-source libraries in Rust for GraphQL implementations, such as improving existing libraries or creating new tools to make integration easier.
• Community Projects: Engage with community projects that use Rust and GraphQL to add new features, improve performance, and enhance documentation.

What you'll bring:

• Demonstrated experience with GraphQL, including schema design, resolver functions, and query optimization.
• Proficiency in using GraphQL with different programming languages and frameworks.
• Strong understanding of the benefits and trade-offs of using GraphQL compared to other API technologies like REST.
• Proven track record of leading and mentoring technical teams, fostering a collaborative and innovative environment.
• Effective communication skills to articulate complex technical concepts to non-technical stakeholders.
• Strong problem-solving abilities to address complex technical challenges, particularly related to GraphQL implementation and performance.
• Expertise in API design, development, and integration, specifically using GraphQL.
• Understanding of best practices for API security, versioning, and documentation.
• Ability to work on integrating various services and data sources using GraphQL, ensuring seamless and efficient data flow.
• Commitment to staying current with emerging trends and technologies in GraphQL and API development.
• Openness to new ideas and methods, continuously seeking improvements and innovations.
• Flexibility to adapt to changing project requirements and industry standards.
• Experience handling on-call duties.
• Over 10 years of experience in Technical Solutions Architecture and design leadership.
• Strong experience with Rust programming language and cloud platforms such as Azure.
• Extensive experience in designing and developing RESTful Microservices.
• Comprehensive experience in GraphQL Microservices, utilizing OpenSource GraphQL.
• Proficiency in building and operating GraphQL Gateways via GraphQL Federation.
• Several years of experience with Node.js, React.js, and JavaScript.
• Adept with container technologies such as Docker and Kubernetes.
• Solid experience in API design, development, and maintenance.
• Clear communication skills, including the ability to create functional diagrams and charts.
• Proven ability to multitask across multiple requirements and features concurrently.
• Experience with cloud-native technologies and CI/CD processes.
• Proficiency in utilizing third-party libraries and APIs.
• Superior analytical skills coupled with strong problem-solving capabilities.
• Ability to perform effectively within a team environment.
• Proven track record as an independent thinker and problem solver.
• Strong sense of urgency in delivering solutions.
• Proven experience in leading a team of 6-8 junior engineers from a technical delivery standpoint.
• Extensive experience working with SQL and NoSQL databases such as MSSQL, Cassandra, and Couchbase.
• Solid experience with message stream systems like Kafka and RabbitMQ.
• Experience in an agile environment (Scrum, daily stand-ups, etc.).
• Hands-on experience delivering and supporting large scale production systems.
• Core contributor to software projects: understanding domain and business requirements, managing critical parts of the application.
• Hands-on experience working with logging and application monitoring tools such as Splunk, Grafana, and Dynatrace.
• Good communication skills, especially important in collaborative multi-team projects.

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 is a competitive advantage, and it’s fostered by being together. Working together in person allows us to collaborate, align quickly and innovate with greater speed. We use our campuses to create purposeful connection rooted in deepening understanding and investing in the development of our associates.Our hubs: Walmart is a global company with offices across the United States and around the world. Our global headquarters is in Bentonville, Arkansas, with primary hubs in the San Francisco Bay area and New York/New Jersey.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.Equal Opportunity Employer: Walmart, Inc. is an Equal Opportunity 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 diversity- unique styles, experiences, identities, ideas and opinions – while being inclusive of all people.The above information has been designed to indicate the general nature and level of work performed in the role. It is not designed to contain or be interpreted as a comprehensive inventory of all responsibilities and qualifications required of employees assigned to this job. The full Job Description can be made available as part of the hiring process.At Walmart, we offer competitive pay as well as performance-based bonus awards and other great benefits for a happier mind, body, and wallet. Health benefits include medical, vision and dental coverage. Financial benefits include 401(k), stock purchase and company-paid life insurance. Paid time off benefits include PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting. Other benefits include short-term and long-term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more.‎‎‎ You will also receive PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes. The amount you receive depends on your job classification and length of employment. It will meet or exceed the requirements of paid sick leave laws, where applicable.‎For information about PTO, see .‎‎ Live Better U is a Walmart-paid education benefit program for full-time and part-time associates in Walmart and Sam's Club facilities. Programs range from high school completion to bachelor's degrees, including English Language Learning and short-form certificates. Tuition, books, and fees are completely paid for by Walmart.‎ Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to a specific plan or program terms.‎For information about benefits and eligibility, see .‎ Sunnyvale, California US-11349:The annual salary range for this position is $143,000.00-$286,000.00‎ Bentonville, Arkansas US-10735:The annual salary range for this position is $110,000.00-$220,000.00‎‎‎‎‎‎‎‎‎‎ Additional compensation includes annual or quarterly performance bonuses.‎ Additional compensation for certain positions may also include:‎‎ - Stock‎‎Minimum 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 and5 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...1395 Crossman Ave, Sunnyvale, CA 94089-1114, United States of America Expected salary: Location: Sunnyvale, CA Apply for the job now! Apply for this job