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Principal Network Engineer

Tokyo, JPN

About Zscaler

Serving thousands of enterprise customers around the world including 40% of Fortune 500 companies, Zscaler (NASDAQ: ZS) was founded in 2007 with a mission to make the cloud a safe place to do business and a more enjoyable experience for enterprise users. As the operator of the world’s largest security cloud, Zscaler accelerates digital transformation so enterprises can be more agile, efficient, resilient, and secure. The pioneering, AI-powered Zscaler Zero Trust Exchange™ platform, which is found in our SASE and SSE offerings, protects thousands of enterprise customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location.

Named a Best Workplace in Technology by Fortune and others, Zscaler fosters an inclusive and supportive culture that is home to some of the brightest minds in the industry. If you thrive in an environment that is fast-paced and collaborative, and you are passionate about building and innovating for the greater good, come make your next move with Zscaler. 

Our Engineering team built the world’s largest cloud security platform from the ground up, and we keep building. With more than 100 patents and big plans for enhancing services and increasing our global footprint, the team has made us and our multitenant architecture today's cloud security leader, with more than 15 million users in 185 countries. Bring your vision and passion to our team of cloud architects, software engineers, security experts, and more who are enabling organizations worldwide to harness speed and agility with a cloud-first strategy.

The Principal Network Engineer will be responsible for designing, implementing and maintaining IT Network infrastructure to ensure it operates efficiently, securely, and reliably. The ideal candidate will possess a strong background in infrastructure, networking, and security technologies. You will be reporting to Manager, IT Network Operations. You will be responsible for:

  • Designing, leading and executing IT projects, such as new office network builds, network upgrades, migrations ensuring the seamless integration of network infrastructure, adhering to best practices for performance and security
  • Monitoring network performance, address bottlenecks, and implement improvements for optimal efficiency and reliability, while managing and maintaining the Aruba Wi-Fi infrastructure across all corporate offices
  • Prioritizing and diligently address tickets assigned to the IT Network queue, striving to resolve them within established Service Level Agreements(SLAs) to ensure timely and effective support
  • Deploying and managing Zscaler security products, including Branch Connectors, App Connectors, and other security components, and administer DNS infrastructure, including the creation and management of DNS records and zones
  • Generating and managing digital certificates for external applications. Collaborate on Zero Trust Architecture projects to enhance network security and access control

What We're Looking for (Minimum Qualifications)

  • 7+ years in Infrastructure, Network Engineering/Operations and experience in creating security policies and implementing network segmentation
  • Deep knowledge of network protocols, topologies, and architectures, with a focus on LAN/Wi-Fi infrastructure and proficiency in configuring and troubleshooting network devices
  • Strong Routing & Switching configuration experience (Arista/Juniper/Cisco) with hand-on experience configuring OSPF and BGP routing protocols
  • Experience in creating internal and external DNS records and managing DNS zones, renew and managing certificates for public domains

What Will Make You Stand Out (Preferred Qualifications)

  • Experience with Linux operating systems and the functions they perform
  • Zscaler ZIA/ZPA certification and CCNP/JNCIP certified is a plus
  • Network automation experience is a plus with familiarity in tools like Python or Ansible to streamline network task

#LI-JK3

#LI-Hybrid

At Zscaler, we believe that diversity drives innovation, productivity, and success. We are looking for individuals from all backgrounds and identities to join our team and contribute to our mission to make doing business seamless and secure. We are guided by these principles as we create a representative and impactful team, and a culture where everyone belongs. For more information on our commitments to Diversity, Equity, Inclusion, and Belonging, visit the Corporate Responsibility page of our website.

Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including:

  • Various health plans
  • Time off plans for vacation and sick time
  • Parental leave options
  • Retirement options
  • Education reimbursement
  • In-office perks, and more!

By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines.

Zscaler is proud to be an equal opportunity and affirmative action employer. We celebrate diversity and are committed to creating an inclusive environment for all of our employees. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status or any other characteristics protected by federal, state, or local laws.

See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link.

Pay Transparency

Zscaler complies with all applicable federal, state, and local pay transparency rules. For additional information about the federal requirements, click here.

Zscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support.

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In consideration of Zscaler, Inc. or any of its subsidiaries (together referred to as “Zscaler”) granting the opportunity to apply for a position with Zscaler, I agree (a) to use Confidential Information for the sole purpose of evaluating a position with Zscaler, (b) that I will not disclose Confidential Information to anyone outside of Zscaler, (c) that all Confidential Information disclosed by Zscaler (and any derivative works thereof) remains the property of Zscaler, and no license or other rights to Confidential Information is granted or implied, (d) not to use the systems of my current employer to access any Confidential Information or download any Confidential Information onto the systems of my current employer, (e) immediately upon request, to return or destroy all the embodiments and copies of any Confidential Information, and (f) that “Confidential Information” means any nonpublic information disclosed to me by Zscaler, which Zscaler labels or otherwise identifies as confidential or a reasonable person would understand to be confidential.

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