Principal, Software Engineer, Information Security

We are seeking a Principal Software Engineer to own, architect, and deliver scalable and secure enterprise authentication solutions. This role is part of the Multi-Factor Authentication (MFA) team within the Identity and Access Management (IAM) organization and is focused on Phishing-Resistant MFA (PR-MFA) using FIDO2, passkeys, hardware authenticators, and certificate-based authentication (CBA). You will define MFA architecture and build software and automation enabling secure registration, lifecycle management, recovery, and rollout at scale, partnering across security, endpoint, and associate experience teams.

What you’ll bring

As the Principal Software Engineer, Cybersecurity (IAM – MFA), you will bring:

• Strong software engineering experience building enterprise-grade, high-scale services and APIs
• Deep understanding of authentication and MFA fundamentals, assurance levels (AAL2/AAL3), and context-aware and risk-based MFA patterns
• Strong knowledge of MFA threats (phishing, MFA fatigue, relay attacks, recovery abuse)
• Hands-on experience implementing PR-MFA using:
• FIDO2 security keys and passkeys
• Certificate-based authentication (CBA) using PIV / Smart Cards and X.509 certificates
• Deep experience across Windows, macOS, iOS, and Android platforms (including Windows Hello for Business and platform authenticators)
• Proven ability to design MFA for large, diverse enterprise user populations
• Ability to evaluate security, usability, and operational tradeoffs
• Strong awareness of industry standards and trends (FIDO Alliance, PIV, NIST 800-63, Zero Trust, PKI-based authentication)

What You Will Do – Responsibilities

• Own the enterprise MFA architecture, including PR-MFA and certificate-based authentication
• Design and operate services supporting registration, lifecycle, recovery, and break-glass
• Define PR-MFA rollout patterns that drive adoption with strong assurance
• Integrate MFA across IdP, SSO, VPN, Windows, macOS, iOS, and Android
• Apply FIDO2/passkey concepts (WebAuthn, CTAP, attestation) and CBA concepts (PKI, certificate lifecycle, trust chains)
• Lead hardware authenticator (YubiKey) programs, including enrollment and recovery
• Define and track adoption and friction metrics
• Serve as a technical authority and mentor senior engineers

Qualifications Bachelor’s degree in a related field and 14+ years experience in software engineering and/or cybersecurity with deep IAM focus

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…