Application Security Engineer Jobs in California

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

Software Engineers on the Application Security Engineering team build production-grade systems, services, and software automation that protect Box from attackers, vulnerabilities, and abuse. We are looking for a strong software engineer who wants to apply their engineering skills to solving critical security challenges through code. You will design, build, deploy, and operate security services and "paved road" developer guardrails directly within Box's products, infrastructure, and software development lifecycle (SDLC).

WHAT YOU'LL DO

• Design, build, and operate production-grade security services, features, and internal tools that protect Box and its customers.

• Engineer end-to-end applications and backend services with a strong foundation in modern data stores, application frameworks, and scalable architectures.

• Build systems and automation to detect, prevent, and mitigate security threats at scale.

• Develop "paved road" frameworks, libraries, and guardrails that make secure development seamless and standard for all Box engineers.

• Build security automation and verification controls integrated directly into Box CI/CD pipelines.

• Architect and implement AI security controls, evaluation frameworks, and automated protections across product verticals.

• Partner closely with Product and Engineering teams to turn complex security challenges into elegant, scalable software solutions.

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.

• 4+ years of professional software development experience in languages such as Java, Python, PHP, Go, or Scala.

• Proven track record of building end-to-end applications, with solid experience across databases, modern frameworks, and API design.

• Strong software engineering fundamentals in object-oriented and functional design, system architecture, automated testing, reliability, and code quality.

• A foundational understanding of security concepts and a strong passion for solving security challenges through software engineering (deep security specialization is not required—we will help you learn the rest!).

• Ability to break down complex technical problems and translate them into clean, scalable, and maintainable software systems.

• Strong analytical, problem-solving, communication, and cross-functional collaboration skills.

• Bachelor's degree in Computer Science, related technical field, or equivalent practical experience.

• Preferred skills:
  • Experience or familiarity with distributed systems, microservices architectures, or message queues (e.g., Kafka, RabbitMQ, SQS).
  • Experience with Java Spring / Spring Boot.
  • Familiarity with public cloud platforms (AWS, GCP, Azure) and Infrastructure as Code (e.g., Terraform).
  • Familiarity with AI/ML systems, LLMs, or AI application security.

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.

NOTICE OF USE OF AI

At Box, we believe in the power of AI to improve the recruiting process while keeping people at the heart of every decision. For more information on the use of AI in our hiring process, please visit our webpage here.

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