SENIOR SOFTWARE ENGINEER, INFORMATION SECURITY

Position Summary...

We are hiring a Senior Software Engineer to help evolve our enterprise Single Sign-On (SSO) platform within IAM. You will build secure, scalable authentication services leveraging modern federation standards and contribute to AI-enabled adaptive authentication capabilities that enhance risk-based access control. This role combines deep engineering expertise with identity domain knowledge to deliver intelligent, resilient authentication systems at global scale.

What you'll do...

About The Team

The Information Security team ensures customers and associates can securely access Walmart systems at global scale. Within this organization, the Identity and Access Management (IAM) team builds and operates authentication, authorization, and federation platforms that power secure access across enterprise and customer-facing applications.

The Single Sign-On (SSO) Engineering team develops highly scalable identity services that provide seamless and secure authentication experiences across web, mobile, APIs, workforce, and partner ecosystems. We focus on modern authentication standards, Zero Trust principles, and intelligent risk-based access controls.

We are looking for a Senior Software Engineer with strong backend engineering expertise and hands-on experience in authentication and identity systems.

What You’ll Do

• Design, develop, and maintain scalable SSO and federation services supporting enterprise and customer applications.
• Implement authentication and authorization solutions using OAuth 2.0, OpenID Connect (OIDC), SAML 2.0, SCIM, and LDAP/Active Directory.
• Build secure RESTful APIs and backend services using Java, Go, or Python, and integrate with frontend systems using modern frameworks.
• Develop core authentication capabilities including:
• Login flows
• Token issuance and validation (JWT/opaque tokens)
• Session management
• Token revocation and introspection
• Implement and enhance MFA, adaptive authentication, and risk-based access controls.
• Contribute to passwordless initiatives such as FIDO2/WebAuthn and device trust integrations.
• Work with cloud-native platforms (Azure/GCP) using Docker and Kubernetes.
• Build observability, monitoring, and reliability improvements for identity services.
• Contribute to automation and AI-enabled authentication capabilities, including:
• Behavioral signal integration
• Risk scoring inputs
• Automated remediation workflows (step-up authentication, session termination)
• Collaborate with security, platform, and application teams to integrate SSO across services.
• Participate in design reviews, code reviews, and operational incident response.

What You’ll Bring

• 6–9+ years of experience building scalable backend systems or distributed applications.
• Strong hands-on expertise in Java, Go, or Python, with solid system design fundamentals.
• Experience implementing OAuth 2.0, OIDC, or SAML-based SSO integrations.
• Understanding of authentication flows (Authorization Code + PKCE, Client Credentials, Device Code).
• Experience working with:
• JWT tokens
• API security
• Secure session handling
• Token signing and validation
• Familiarity with MFA, adaptive authentication, and identity risk signals.
• Experience with Identity Providers (Azure AD, Okta, Ping, ForgeRock, etc.) or custom-built identity platforms.
• Knowledge of cryptography basics, PKI, SSL/TLS, and certificate lifecycle management.
• Experience building and deploying applications in containerized cloud environments.
• Strong understanding of secure coding practices and CI/CD integration.
• Good Linux troubleshooting skills.
• Strong collaboration and communication skills.

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.

Work

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.

Minimum Qualifications:Bachelor's degree in Computer Science, Information Technology, or related field and 5 years' experience in information technology within the past 10 years OR 7 years' experience in information technology or related field within the past 10 years.

Preferred Qualifications...

Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.

Information Technology, Java, Mainframe Technology, Programming Languages, Retail Software Programs

BICSI-RITPM-Registered Information Technology Project Manager - Certification, CISA - Certified Information Systems Auditor - Certification, CISSP - Certified Information Systems Security Professional - Certification, GCIH - GIAC Certified Incident Handler - Certification

Primary Location...

G, 1, 3, 4, 5 Floor, Building 11, Sez, Cessna Business Park, Kadubeesanahalli Village, Varthur Hobli , India R-2430386