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 robust assurance
Integrate MFA across IdP, SSO, VPN, Windows, macOS, iOS, and Android
Apply FIDO2/passkey concepts (WebAuth

📌 Principal, Software Engineer, Information Security (Bengaluru)
🏢 Walmart Global Tech India
📍 Bengaluru