Senior Software Engineer - Wallet/Authentication Platform (Client & Credentials)

Company Overview ID.me is the next-generation digital identity wallet that simplifies how individuals securely prove their identity online. Consumers can verify their identity with ID.me once and seamlessly login across websites without having to create a new login and verify their identity again. Over 152 million users experience streamlined login and identity verification with ID.me at 20 federal agencies, 45 state government agencies, and 70+ healthcare organizations. More than 600+ consumer brands use ID.me to verify communities and user segments to honor service and build more authentic relationships. ID.me’s technology meets the federal standards for consumer authentication set by the Commerce Department and is approved as a NIST 800-63-3 IAL2 / AAL2 credential service provider by the Kantara Initiative. ID.me is committed to “No Identity Left Behind” to enable all people to have a secure digital identity. To learn more, visit Role Overview ID.me is seeking a Senior Software Engineer to join the Wallet/Authentication Platform team, with a focus on the client-side and credential-layer experiences that power the ID.me digital identity wallet. This role sits at the leading edge of digital identity — building the mobile and web surfaces through which over 140 million members hold, manage, and present their credentials. Our team is investing heavily in next-generation wallet capabilities: W3C Verifiable Credentials, ISO 18013-5 mobile driver's licenses (mDL), passkeys, and cryptographically-bound credentials secured by device hardware. You will bring deep experience in mobile development, secure hardware APIs, and digital credential standards to help us ship these capabilities securely and at scale. As a Senior Software Engineer, you will operate with a high degree of independence, designing and shipping features across iOS, Android, and/or web wallet clients while partnering closely with Platform, Security, Identity, and Product to ensure our credential issuance and presentation flows meet the highest bar for usability, interoperability, and security. This position will work from our Mountain View, CA office five days per week. Key Responsibilities Digital Wallet Client Development: Build and maintain the client-side wallet experience — credential storage, management, and presentation flows across iOS, Android, and web. Deliver seamless, secure UX for issuing, holding, and presenting Verifiable Credentials and other identity artifacts. Verifiable Credentials & Standards Implementation: Implement and evolve support for W3C Verifiable Credentials (VC Data Model), Decentralized Identifiers (DIDs), and related protocols (SD-JWT VC, mdoc/ISO 18013-5). Engage with emerging standards to inform ID.me's credential architecture. Secure Hardware & Cryptographic Storage: Leverage platform secure storage APIs — iOS Keychain, Android Keystore / StrongBox to bind credentials and keys to device hardware. Design credential lifecycles with strong cryptographic guarantees for issuance, binding, revocation, and presentation. Authentication Integration: Integrate wallet credential flows with the broader authentication stack, passkeys/FIDO2, OIDC credential presentations, and protocol-level bridges between identity wallet and relying party verification. Ensure the client-side auth surface is hardened against phishing, replay, and interception attacks. Code Quality & Engineering Craft: Write high-quality, maintainable code with strong test coverage, following team best practices around code reviews, CI/CD, and documentation. Contribute to codebase health by identifying and addressing technical debt and improving shared components. Cross-Functional Collaboration: Partner with Product, Design, Security, Identity Standards, and adjacent engineering teams to ship cohesive credential experiences. Participate actively in planning, retrospectives, and cross-team discussions — bringing your perspective to help shape the team's roadmap. Mentorship & Leadership: Provide technical guidance to junior engineers through code reviews, design discussions, and pairing. Help establish and reinforce team standards for secure client development. Required Qualifications Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent practical experience). 5+ years of professional software development experience, with significant focus on mobile or client-side engineering. 1+ years experience with AI-assisted development tooling (e.g., Claude Code, Cursor) demonstrated by at least one year of daily use, in addition to a commitment to an AI-first engineering culture that leverages these tools to maximize code quality, test coverage, and engineering velocity. 1+ years experience developing production mobile applications for iOS (Swift/Objective-C) or Android (Kotlin/Java), or cross-platform (React Native, Flutter) with native module integration. Preferred Qualifications Experience implementing W3C Verifiable Credentials (VC Data Model 1.x/2.x), Decentralized Identifiers (DIDs), or related decentralized identity standards (SD-JWT VC, mdoc/ISO 18013-5 mDL). Demonstrated ability to independently own and ship complex features end-to-end with minimal oversight. Hands-on experience with platform secure hardware APIs: iOS Secure Enclave, iOS Keychain, Android Keystore, Android StrongBox, or equivalent Trusted Execution Environment (TEE) primitives. Familiarity with cryptographic key management in mobile contexts — key generation, attestation, binding, rotation, and secure deletion. Experience building digital wallet applications — credential issuance flows, presentation protocols, and holder-binding mechanisms. Familiarity with passkeys/FIDO2/WebAuthn, especially platform authenticator integration on iOS and Android. Experience with authentication and identity protocols: OAuth 2.0, OpenID Connect (OIDC), OIDC for Verifiable Presentations (OID4VP), or SIOP v2. Familiarity with NIST SP 800-63 identity assurance levels and what they mean for credential binding and presentation security. Experience with React or modern web frameworks for building wallet-style web client experiences. Familiarity with CI/CD pipelines, automated testing frameworks, and mobile-specific testing tooling. Exposure to low-level mobile development and mobile networking security — including SIM/eSIM architecture, SIM Network Authentication (SNA), carrier-level authentication primitives, SS7/Diameter security considerations, and the security properties and attack surface of cellular identity. Startup or high-growth company experience with a strong bias toward execution and ownership. About ID.me ID.me is the next-generation digital identity wallet that simplifies how individuals securely prove their identity online. Consumers can verify their identity with ID.me once and seamlessly log in across websites without needing to create a new login and re-verify. Over 140 million users experience streamlined login and identity verification with ID.me at 20 federal agencies, 44 state government agencies, and 66 healthcare organizations. More than 600 consumer brands use ID.me to verify communities and user segments to honor service and build more authentic relationships. ID.me's technology meets the federal standards for consumer authentication set by the Commerce Department and is approved as a NIST 800-63-3 IAL2 / AAL2 credential service provider by the Kantara Initiative. ID.me is committed to "No Identity Left Behind" to enable all people to have a secure digital identity. The annual base salary listed does not include a company bonus, incentive for sales roles, equity and benefits which will be determined based on experience, skills, education, relevant training, geographic location and role. ID.me offers comprehensive medical, dental, vision, health savings account, flexible spending accounts (medical, limited purpose, dependent care, commuter benefit accounts), basic and voluntary life and AD&D insurance, 401(k) with company match, parental leave, ability to participate in unlimited paid time off subject to the terms and conditions of the PTO policy, including 8 company wide holidays, short and long-term disability insurance, accident and critical illness insurance, referral bonus policy, employee assistance program, pet insurance, travel assistant program, wellbeing and childcare discounts, benefit advocates, and a learning and development benefit. The above represents the anticipated total rewards package for this job requisition. Final offers may vary from the amount listed based on qualifications, professional experiences, skills, education, relevant training, geographic location, and other job related factors. Mountain View, CA Pay Range

$190,978—$221,668 USD

ID.me is a full-time, in-office culture. Unless a specific job description explicitly states otherwise, all roles are on-site five days per week at one of our offices in McLean, VA; Mountain View, CA; New York City, NY; or Tampa, FL. Certain roles — such as field-based sales or other remote-by-design positions — may have different work arrangements as noted in their individual postings. ID.me maintains a work environment free from discrimination, where employees are treated with dignity and respect. All ID.me employees share in the responsibility for fulfilling our commitment to equal employment opportunity. ID.me does not discriminate against any employee or applicant on the basis of age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws, regulations and ordinances. ID.me adheres to these principles in all aspects of employment, including recruitment, hiring, training, compensation, promotion, benefits, social and recreational programs, and discipline. In addition, ID.me's policy is to provide reasonable accommodation to qualified employees who have protected disabilities to the extent required by applicable laws, regulations and ordinances where a particular employee works. Upon request we will provide you with more information about such accommodations. Please review our Privacy Policy, including our CCPA policy, at id.me/privacy. If you provide ID.me with any personally identifiable information you confirm that you have read and agree to be bound by the terms and conditions set out in our Privacy Policy. ID.me participates in E-Verify.