Senior Backend Software Engineer, (Identity & Security)

What is Box? Box (NYSE:BOX) is the leader in Intelligent Content Management. Our platform enables organizations to fuel collaboration, manage the entire content lifecycle, secure critical content, and transform business workflows with enterprise AI. We help companies thrive in the new AI-first era of business. Founded in 2005, Box simplifies work for leading global organizations, including JLL, Morgan Stanley, and Nationwide. Box is headquartered in Redwood City, CA, with offices across the United States, Europe, and Asia. By joining Box, you will have the unique opportunity to continue driving our platform forward. Content powers how we work. It’s the billions of files and information flowing across teams, departments, and key business processes every single day: contracts, invoices, employee records, financials, product specs, marketing assets, and more. Our mission is to bring intelligence to the world of content management and empower our customers to completely transform workflows across their organizations. With the combination of AI and enterprise content, the opportunity has never been greater to transform how the world works together and at Box you will be on the front lines of this massive shift. Why Box Needs You The Identity & Security Foundation (ISF) team owns the core authentication, identity, and secure access infrastructure that protects millions of users and enterprises on Box. We build and operate the services behind Login, Authorization, Multi-Factor Authentication (MFA), Single Sign-On (SSO), OAuth, Device Trust, and Secure Access Controls. These systems are critical to every Box customer and every Box application across Web, Mobile, Desktop, and APIs. As part of ISF, you will work on highly available, security-sensitive services that sit directly on Box's most critical user journeys. Your work will have company-wide impact and will be used by numerous teams across Box. What You'll Do Design, build, deploy, and operate mission-critical services that power authentication, identity, and secure access across Box. Improve the reliability, observability, and deployment safety of critical authentication infrastructure. Collaborate with engineers, product managers, security engineers, and partner teams to deliver secure platform capabilities. Participate in technical design and implementation of authentication and identity solutions. Participate in our on-call rotation and help investigate, triage, and resolve production issues. Who You Are We are an AI-first company . This means you approach your work with a growth mindset and find ways to leverage AI to make faster, smarter decisions and increase your impact at Box. 6+ years of professional software engineering experience building backend or distributed systems. Strong Java development skills and a track record of delivering production software. Experience building and operating backend services in production environments. Strong understanding of software engineering fundamentals, including system design, testing, performance, scalability, and reliability. Strong problem-solving skills and the ability to debug complex technical issues. Effective communicator who enjoys collaborating across teams. Comfortable working in a fast-paced environment with evolving priorities. Preferred Experience Experience in authentication, identity, authorization, or enterprise security domains. Familiarity with OAuth, OIDC, SAML, MFA, or related authentication technologies. Experience with Kubernetes and cloud platforms such as GCP, AWS , or Azure . Experience with PHP, TypeScript , and React is a plus. Prior experience working on internal platforms or systems requiring high reliability, security, and compliance. Methodology Agile management - Scrum Issue tracking tool - Jira Knowledge repository - GitHub Enterprise Code reviews - GitHub Enterprise Version control system - GIT At Box, we believe that providing the best tools leads to the best outcomes. That's why we equip our eng…