Senior Security Engineer

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 AstraZeneca, 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

Box is building the industry’s most trusted, secure content and AI platform. Our Security Assurance Engineering team (part of Platform Security ) is looking for a Senior Security Engineer who possesses an adversarial mindset and partners with engineering, product management and other security teams to find and fix product and platform vulnerabilities across web, mobile, APIs, microservices, and other surfaces. You will help ensure Box remains secure-by-design and secure-by-default while enabling rapid, responsible product development and AI adoption.

What You'Ll Do

• Lead and execute hands-on, technical security assessments at the product and feature level: manual code reviews, design reviews, threat models, web & mobile penetration tests, fuzz testing, and vulnerability risk analysis.
• Discover and validate vulnerabilities (front-end, APIs, microservices, containers), determine exploitability and business impact, and recommend mitigation and secure architecture changes.
• Secure how Box builds AI products and use AI to make Box products more secure.
• Build capabilities, modules and mechanisms to eliminate classes of vulnerabilities from Box products and platforms
• Produce clear, technical reports and remediation guidance for engineering teams; communicate risk and proposed solutions to technical and non-technical stakeholders.
• Drive and maintain secure coding requirements, secure design patterns, and bug bars; embed requirements into patterns, platforms, and CI/CD/SAST/DAST workflows.
• Support and triage submissions for Bug Bounty and VDP programs; coordinate PSIRT handoffs for fixes and incident tracking.
• Support engineers and security champions; collaborate with Product, Engineering, Security Architecture, Production Security, and Platform Security Tools & Engineering to scale detection and remediation.
• Participate in our on-call rotation, available at all times while on-call to help respond to and triage any issues that arise.

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 help make faster, smarter decisions that will 10X your impact at Box.

• 5+ years hands-on experience performing end-to-end security assessments: threat modeling, secure code review, and manual penetration testing across web/mobile/API environments.
• Strong offensive skills: manual pentesting, exploitation reasoning, fuzzing, use of tools like Burp Suite; experience with DAST/SAST/fuzz pipelines a plus.
• Deep practical experience with at least one few of: Java, React/JS/TypeScript, Node.js, Python, PHP, Scala, C/C++, Go
• Demonstrated ability to find and assess vulnerabilities across front-end, APIs, microservices and mobile applications; understand supply-chain risk and OSS component management.
• Excellent vulnerability risk analysis skills: determine severity, exploitability, and business impact; create concise remediation plans prioritized by exploitation likelihood and business risk.
• Experience supporting bug bounty / VDP programs (triage, reproducibility, remediation guidance).
• Strong communicator: able to present technical problems and proposed solutions to engineering teams, product owners, and non-technical stakeholders.
• Passion for security demonstrated by community involvement (CTFs, Hack The Box, TryHackMe, bug bounty, published CVEs, or personal security projects).
• Familiarity with secure SDLC concepts and experience influencing secure-by-design adoption across teams.

Box lives its values, with community and in-person collaboration being a core part of our culture. Boxers are expected to work from their assigned office a minimum of 3 days per week.Your Recruiter will share more about how we work and company culture during the hiring process.

At Box, we believe unique and diverse experiences benefit our culture, our products, our customers, our company, and our world. We aim to recruit a passionate, high-performing workforce that reflects the world we live in. If you are head-over-heels about this role but unsure if you meet all the requirements, we encourage you to apply!

Equal Opportunity

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability, and any other protected ground of discrimination under applicable human rights legislation. Box strives to respect the dignity and ‎‎independence of people with disabilities and is committed to giving them the same ‎‎opportunity to succeed as all other employees. Inclusiveness is core to our culture at Box, and we strive to ensure you get the most from your interview experience.

Box makes reasonable accommodations for applicants with disabilities. If a reasonable accommodation is needed to participate in the job application or interview process, please complete this form. Reasonable accommodations may include scheduling adjustments, document dictation and beyond.

Notice to applicants in Los Angeles:  Box, Inc and its related branches will consider for employment, qualified applicants with criminal histories in a manner consistent with the Los Angeles Fair Chair Ordinance.  The Fair Chance Ordinance is provided here. 

Notice to applicants in San Francisco:  Box, Inc and its related branches will consider for employment, qualified applicants with criminal histories in a manner consistent with the San Francisco Fair Chair Ordinance.  The Fair Chance Ordinance is provided here. 

For details on how we protect your information when you apply, please see our Personnel Privacy Notice. If you are a California-resident, please read our California Applicant & Candidate Privacy Notice here.

#Li-Ja

Box is committed to fair and equitable compensation practices. Actual base salary (or OTE if commissionable role) is dependent upon factors such as: knowledge, skill level, experience, and work location. This role is also eligible for equity and benefits. For more information on benefits, check out our healthcare benefits and additional Box Benefits + Perks.   In accordance with OFCCP compliance, here is the Pay Transparency Provision.  United States Pay Range$187,000—$200,000 USD