Authentication Engineer

WalterMountain View, CA

Apply with Sonara

Automate your job search with Sonara.

Submit 10x as many applications with less effort than one manual application.¹

Reclaim your time by letting our AI handle the grunt work of job searching.

We continuously scan millions of openings to find your top matches.

Overview

Schedule

Full-time

Career level

Senior-level

Remote

On-site

Benefits

Career Development

Job Description

Summary

We are the next-generation digital identity wallet that simplifies how individuals securely prove their identity online. Consumers can verify their identity with us once and seamlessly log in across websites without needing to create a new login and re-verify. Over 140 million usersexperience streamlined login and identity verification with us at 20 federal agencies and 44 state agencies

General Information

Onsite Location: Mountain View, CA OR McLean, VA (Onsite 5 days per week)

We are seeking a Software Engineer to join the Wallet - Authentication team, where we buildthe core sign-in, registration, and account management experiences that over 140 millionmembers rely on to access the our identity wallet.

As a Software Engineer III, you will work end-to-end across our authentication stack — buildingfeatures that balance security, usability, and trust at scale. Your work will sit at the intersection ofidentity, security, and consumer experience, directly shaping how millions of people prove and access who they are online.

Key Responsibilities

Build & Ship Authentication Features: Build, maintain, and improve the ID.me Walletauthentication experience — sign-in, registration, MFA, account recovery, password reset, and MyWallet. Independently drive small-to-medium features end-to-end from design through deployment, collaborating closely with Product, Design, and Security to translate requirements into well-tested, production-ready code.
Security, Risk & Reliability: Own and evolve the team's real-time risk engine and its integration across authentication flows — detecting and mitigating credential attacks, account takeover, and abuse while preserving a low-friction experience for legitimate members.
Apply security best practices as a first-class concern in every feature you ship, and help raise the bar for authentication reliability, observability, and incident response across the team's services.
Code Quality & Engineering Craft: Write high-quality, maintainable code with strongtest coverage, following team best practices around code reviews, CI/CD, anddocumentation.
Contribute to the health of the codebase by identifying and addressing technical debt and improving shared components.
Third-Party & Internal Integrations: Integrate with MFA providers, email/SMS deliveryservices, internal identity services, and downstream relying parties. Proactively raise issues or opportunities discovered during integration work.
Cross-Functional Collaboration: Partner with Product, Design, Security, Identity, andadjacent engineering teams to deliver cohesive auth experiences. Participate actively in planning, retrospectives, and cross-team discussions — bringing your perspective to help shape the team's roadmap.

Requirements

Required Experience

Bachelor's degree in Computer Science, Engineering, or a related field (or equivalentpractical experience).
3+ years of professional software development experience with a strong emphasis on full-stack web engineering.
Proficiency 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.
• Experience with authentication and identity standards such as OAuth2, OpenID• Connect, SAML, or FIDO2/WebAuthn.• Experience building or contributing to fraud detection, real-time risk engines, or abuse• mitigation systems.
Proficiency in a modern server-side web framework (e.g., Ruby on Rails, Django,Laravel), with hands-on experience building and operating production web applications.
Demonstrated ability to independently ship well-tested, production-quality features withminimal oversight.
Strong communication and collaboration skills, with a track record of working effectively across Product, Design, and Engineering.
Familiarity with security best practices for credential handling — password storage,session management, token issuance, and rate limiting.

Preferred Qualifications

Experience with React or other modern frontend frameworks for building userexperiences.
Comfort working in a fast-moving product environment with iterative releases and A/Btesting.
Familiarity with CI/CD pipelines, automated testing frameworks, and performanceStartup or high-growth company experience with a strong bias toward execution and

Automate your job search with Sonara.

Submit 10x as many applications with less effort than one manual application.

Apply with Sonara Apply manually

FAQs About Authentication Engineer Jobs at Walter

What is the work location for this position at Walter?

This job at Walter is located in Mountain View, CA, according to the details provided by the employer. Some roles may also include multiple work locations depending on the requirement.

What pay range can candidates expect for this role at Walter?

Employer has not shared pay details for this role.

What employment applies to this position at Walter?

Walter lists this role as a Full-time position.

What experience level is required for this role at Walter?

Walter is looking for a candidate with "Senior-level" experience level.

What benefits are offered by Walter for this role?

Walter offers Career Development for this position. Actual benefits may vary depending on the employer's policies and employment terms.

What is the process to apply for this position at Walter?

You can apply for this role at Walter either through Sonara's automated application system, which helps you submit applications 10X faster with minimal effort, or by applying manually using the direct link on the job page.