Gusto Logo

Gusto

Senior Software Engineer - iOS Mobile Development, Identity

Job Posted 6 Days Ago Posted 6 Days Ago
Hybrid
San Francisco, CA
Senior level
Hybrid
San Francisco, CA
Senior level
The Software Engineer will develop secure login and authentication features for Gusto's iOS mobile app. Responsibilities include building and refining user experiences, integrating biometric authentication, maintaining secure coding practices, collaborating with teams across various departments, and ensuring high-quality code production.
The summary above was generated by AI

 

About Gusto

Gusto is a modern, online people platform that helps small businesses take care of their teams. On top of full-service payroll, Gusto offers health insurance, 401(k)s, expert HR, and team management tools. Today, Gusto offices in Denver, San Francisco, and New York serve more than 400,000 businesses nationwide.

Our mission is to create a world where work empowers a better life, and it starts right here at Gusto. That’s why we’re committed to building a collaborative and inclusive workplace, both physically and virtually. Learn more about our Total Rewards philosophy

About the Role:

We’re looking for a talented and motivated Mobile Engineer with 8+ years of experience to join our Identity Engineering team. In this role, you'll play a key part in developing seamless and secure login and authentication experiences that protect our customers’ most sensitive data. You’ll build and scale secure, frictionless authentication solutions, own and enhance shared services that power Identity across Gusto’s platform, and stay ahead of best practices, tooling, and advancements in Identity security. Collaboration is key—you’ll work closely with teams across Payroll, Benefits, HR, Security, System Design, and Infrastructure to deliver scalable, high-impact solutions. If you’re passionate about building elegant, scalable solutions and strengthening a high-performing mobile team, we’d love to have you on board!

About the Team:

The Identity Engineering team is responsible for safeguarding customer accounts by enabling secure login and authentication. Our customers entrust us with highly sensitive data related to their livelihoods, and it’s our mission to protect them from account takeovers. We operate under the principle of "Frictionless Security", ensuring that all Gusto users have seamless yet secure access to their designated entities. At our core, Login and Authentication are our products, but Secured Login and Authentication is our business. Our focus is not just on enabling access but on delivering a security-first experience that protects every customer interaction.

Here’s what you’ll do day-to-day:

  • Build, iterate, and refine experiences that allow users to successfully and easily access key product features and offerings
  • Integrate biometric authentication methods (Face ID, Touch ID) and passkey functionalities to enhance user login security and improve user experience.
  • Implement and maintain secure coding practices to protect user data and ensure compliance with privacy regulations.
  • Architect, build, test, and refine Gusto’s native iOS app and supporting mobile web-views
  • Collaborate with our product management, design, and other partner teams to understand technical and customer pain points, come up with solutions, and then prototype, iterate, and launch
  • Build a product that our customers genuinely love. Don't just take our word for it - check out what some customers have to say.

Here’s what we're looking for:

  • At least 6 years of experience in Swift iOS development and a minimum of 8 years in mobile software engineering.
  • Strong knowledge of SwiftUI and/or GraphQL
  • Self-driven mindset, and the ability to work on green field projects
  • Working knowledge of MVVM
  • Experience with iOS testing frameworks and best practices
  • Experience implementing biometric authentication (Face ID, Touch ID) and passkey solutions in mobile applications.
  • Experience in constructing platform and common components to enhance scalability, consistency, and maintainability throughout the product development lifecycle
  • Strong critical thinking skills, and a keen attention to detail
  • Strong communication and cross-functional partnership skills
  • Commitment to continuous learning and mentorship

Nice to Haves:

  • Previous knowledge of the iOS security model, including keychain services, data protection, and secure networking practices.
  • Previous experience in a security-focused role or with security-related projects is a plus
  • Ability to deliver high-quality code across a diverse tech stack
  • Familiarity with analytics and monitoring tools
  • Familiarity with mobile infrastructure such as CI/CD, automated test environments, build & release systems, etc.
  • Comfortable dealing with ambiguity, setting milestones and deliverables for the team

Our cash compensation amount for this role is targeted at $170,000-$200,000 for San Francisco, Seattle & New York and $135,000-$165,000 for Denver. Final offer amounts are determined by multiple factors including candidate experience and expertise and may vary from the amounts listed above.

Gusto has physical office spaces in Denver, San Francisco, and New York City. Employees who are based in those locations will be expected to work from the office on designated days approximately 2-3 days per week (or more depending on role). The same office expectations apply to all Symmetry roles, Gusto's subsidiary, whose physical office is in Scottsdale.

Note: The San Francisco office expectations encompass both the San Francisco and San Jose metro areas. 

When approved to work from a location other than a Gusto office, a secure, reliable, and consistent internet connection is required.

Our customers come from all walks of life and so do we. We hire great people from a wide variety of backgrounds, not just because it's the right thing to do, but because it makes our company stronger. If you share our values and our enthusiasm for small businesses, you will find a home at Gusto. 

Gusto is proud to be an equal opportunity employer. We do not discriminate in hiring or any employment decision based on race, color, religion, national origin, age, sex (including pregnancy, childbirth, or related medical conditions), marital status, ancestry, physical or mental disability, genetic information, veteran status, gender identity or expression, sexual orientation, or other applicable legally protected characteristic. Gusto considers qualified applicants with criminal histories, consistent with applicable federal, state and local law. Gusto is also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. We want to see our candidates perform to the best of their ability. If you require a medical or religious accommodation at any time throughout your candidate journey, please fill out this form and a member of our team will get in touch with you.

Gusto takes security and protection of your personal information very seriously. Please review our Fraudulent Activity Disclaimer.

Similar Jobs at Gusto

3 Hours Ago
Hybrid
3 Locations
Expert/Leader
Expert/Leader
Fintech • HR Tech
As a Senior Staff Engineer at Gusto, you will lead the Reporting Platform team, tackling complex technical problems and crafting world-class reporting experiences for small businesses. Your role includes mentoring others, driving engineering quality, and enhancing our foundational architecture. Engage effectively with teams to elevate Gusto's reliability and reporting capabilities.
4 Hours Ago
Hybrid
San Francisco, CA, USA
Expert/Leader
Expert/Leader
Fintech • HR Tech
The Principal Software Engineer will lead the development of projects in the People OS ecosystem, mentor engineers, improve engineering processes, and collaborate across teams. The role emphasizes ownership, quality, and staying updated on AI advancements.
2 Days Ago
Hybrid
4 Locations
Senior level
Senior level
Fintech • HR Tech
The Sr Software Engineer will collaborate with teams to build, test, and deliver Gusto’s product suite, including Payroll, Benefits, and HR. Responsibilities include leading feature specs, developing backend APIs, writing frontend code, and solving complex technical problems. The role requires strong software development experience and a passion for creating user-centric products.

What you need to know about the Seattle Tech Scene

Home to tech titans like Microsoft and Amazon, Seattle punches far above its weight in innovation. But its surrounding mountains, sprinkled with world-famous hiking trails and climbing routes, make the city a destination for outdoorsy types as well. Established as a logging town before shifting to shipbuilding and logistics, the Emerald City is now known for its contributions to aerospace, software, biotech and cloud computing. And its status as a thriving tech ecosystem is attracting out-of-town companies looking to establish new tech and engineering hubs.

Key Facts About Seattle Tech

  • Number of Tech Workers: 287,000; 13% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Amazon, Microsoft, Meta, Google
  • Key Industries: Artificial intelligence, cloud computing, software, biotechnology, game development
  • Funding Landscape: $3.1 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Madrona, Fuse, Tola, Maveron
  • Research Centers and Universities: University of Washington, Seattle University, Seattle Pacific University, Allen Institute for Brain Science, Bill & Melinda Gates Foundation, Seattle Children’s Research Institute
By clicking Apply you agree to share your profile information with the hiring company.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account