Senior Staff Software Engineer, IUM

Ready to be a Titan?

We are seeking a Senior Staff Software Engineer to join our Identity & User Management (IUM) team, serving as the technical thought leader and driving force behind the modernization of our authentication, authorization, and role-based access control (RBAC) platform. This is a critical role in transitioning from a legacy, suboptimal system to a scalable, extensible, and future-ready architecture capable of supporting the company’s growth and evolving product needs.

You will leverage your deep expertise in IUM Domain to shape the architectural vision, guide the engineering direction, and influence key technical and product decisions. You will partner closely with engineering peers, product managers, architects, and cross-functional teams to ensure that the IUM platform is robust, secure, performant, and easy to integrate across our product ecosystem.

What You'll Do:

• Architect & Modernize: Lead the design and implementation of the next-generation IUM platform, transitioning from legacy systems to a modern, scalable, and extensible architecture.

• Domain Leadership: Apply deep expertise in authentication (AuthN), authorization (AuthZ), RBAC, roles, and permissions to ensure secure and compliant access management across our platform.

• Vision & Influence: Define and evangelize the architectural roadmap for IUM, gaining alignment from stakeholders, executives, and peer engineering teams.

• Hands-On Technical Leadership: Write and review high-quality, maintainable, and performant code while setting best practices in architecture, design, and implementation.

• Collaboration & Mentorship: Partner with product, security, infrastructure, and application teams to integrate IUM capabilities seamlessly. Mentor engineers to elevate their technical and domain expertise.

• Operational Excellence: Ensure the IUM platform meets SLAs for availability, latency, and security. Establish monitoring, alerting, and incident response processes for critical identity services.

• Scalability & Extensibility: Design systems that handle high concurrency, multi-tenant environments, and evolving permission models with minimal rework.

• Security & Compliance: Ensure the platform adheres to industry standards (e.g., OAuth 2.0, OIDC, SAML) and regulatory requirements.

What You'll Bring:

• 15+ years of professional software engineering experience, with 8+ years focused on Identity & Access Management (IAM) or related domains.

• Strong expertise in authentication, authorization, RBAC, role & permission modeling, and related standards/protocols (OAuth 2.0, OIDC, SAML, SCIM).

• Proven track record of leading large-scale migrations or architectural overhauls from legacy to modern identity systems.

• Strong proficiency in one or more backend languages (e.g., Java, C#, Go, Node.js) and related frameworks.

• Experience with distributed systems, high-availability architectures, and performance optimization.

• Excellent communication and storytelling skills—able to articulate complex technical concepts to both technical and non-technical audiences.

• Demonstrated ability to influence architectural direction and drive consensus across teams.

• Experience with cloud-native identity services (e.g., AWS Cognito, Azure AD, Okta, Auth0).

• Background in building multi-tenant SaaS identity systems.

• Familiarity with zero-trust architectures and modern security best practices.

• Experience mentoring senior engineers and contributing to engineering culture.

Success in This Role Looks Like:

• Legacy identity system successfully replaced with a modern, scalable, extensible IUM platform.

• Clear architectural vision documented and adopted by engineering and product stakeholders.

• High trust and influence across engineering and product organizations.

• IUM platform performance, security, and integration capabilities measurably improved.

Be Human With Us:

Being human isn’t about checking every box on a list. It’s about the experiences we have, people we meet, and the perspectives we share. So, if you have the skills but are hesitant to apply because of your background, apply anyway. We need amazing people like you to help us challenge the conventional and think differently about the problems that we’re solving. We’re in this together. Come be human, with us. 

What We Offer:
When you join our team, you’re not just accepting a job. You’re making a career move. Here’s how we’ll support you in doing some of the most impactful work of your career:

• Flextime, recognition, and support for autonomous work: Flexible time off with ample learning and development opportunities to continue growing your career. We offer a comprehensive onboarding program, leadership training for Titans at all levels, and other programs and events. Great work is rewarded through Bonusly, peer-nominated awards, and more.

• Holistic health and wellness benefits: Company-paid medical, dental, and vision (with 100% employer paid options and 90% coverage for dependents), FSA and HSA, 401k match, and telehealth options including memberships to One Medical.

• Support for Titans at all stages of life: Parental leave and support, up to $20k in fertility services (i.e. IUI and IVF), surrogacy, and adoption reimbursement, on demand maternity support through Maven Maternity, free breast milk shipping through Maven Milk, pet insurance, legal advisory services, financial planning tools, and more.

At ServiceTitan, we celebrate individuality and uniqueness. We believe that the convergence of fresh perspectives and experiences from all walks of life is what makes our product and culture so great. We strongly encourage people from underrepresented groups to apply. We do not discriminate against employees based on race, color, religion, sex, national origin, gender identity or expression, age, disability, pregnancy (including childbirth, breastfeeding, or related medical condition), genetic information, protected military or veteran status, sexual orientation, or any other characteristic protected by applicable federal, state or local laws.

ServiceTitan is committed to fair and equitable compensation for all of our employees. We thoughtfully consider a wide range of factors when determining individual compensation.The expected salary range for this role for candidates residing in the United States is between $202,000 USD - $270,200 USD. Compensation for candidates residing outside the United States will vary by location and the specific salary range will be discussed during the hiring process. Actual compensation for an individual may vary depending on skills, performance over time, qualifications, experience, and location. In addition to the base salary, the total compensation package also includes an annual bonus, equity and a holistic suite of benefits.