Senior Security Engineer - Perimeter Security

This job posting is anticipated to remain open for 30 days, from 17-Feb-2026. The posting may close early due to the volume of applicants.

Join a financial services firm where your contributions are valued. Edward Jones is a Fortune 500¹ company where people come first. With over 9 million clients and 20,000 financial advisors across the U.S. and Canada, we’re proud to be privately‑owned, placing the focus on our clients rather than shareholder returns.

Behind everything we do is our purpose:
We partner for positive impact to improve the lives of our clients and colleagues, and together, better our communities and society. We are an innovative, flexible, and inclusive organization that attracts, develops, and inspires performance excellence and a sense of belonging.

People are at the center of our partnership. Edward Jones associates are seen, heard, respected, and supported. This is what we believe makes us the best place to start or build your career.

View our Purpose, Inclusion and Citizenship Report.

¹Fortune 500, published June 2024, data as of December 2023. Compensation provided for using, not obtaining, the rating.

The Sr Security Engineer is a senior technical engineer responsible for designing, implementing, and maintaining advanced network security solutions, with a primary focus on Zscaler technologies and broader network security initiatives. This role will collaborate with cross‑functional teams to ensure the firm’s network infrastructure is robust, secure, and optimized for performance and availability, while adhering to best practices and security standards.

• Design, deploy, and manage the Zscaler platform, including Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA).
• Lead network security initiatives, including firewall management, intrusion detection/prevention, and secure remote access including segmentation policies through ZPA.
• Monitor, analyze, respond, and remediate security incidents and vulnerabilities.
• Conduct network assessments and recommend improvements to enhance security and performance.
• Develop and maintain documentation for network architecture, security policies, and operational procedures.
• Collaborate with infrastructure and security teams to integrate security solutions and ensure compliance with regulatory requirements.
• Mentor junior engineers and provide technical guidance on network security best practices.
• Troubleshoot complex network issues, including connectivity, latency, and security concerns.
• Stay current with emerging network security technologies, threats, and vulnerability identification.

• Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent experience).
• Minimum 5 years of professional experience in network engineering and security, with at least 3 years working with Zscaler solutions.
• Expertise in configuring and managing Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA).
• Expertise with network protocols, routing, switching, and firewall technologies.
• Experience with security frameworks (e.g., NIST, ISO 27001) and regulatory compliance.
• Proficiency in network monitoring, analysis, and troubleshooting tools.
• Relevant certifications preferred (e.g., Zscaler Certified Professional, CISSP, CCNP Security).
• Excellent problem‑solving, communication, and organizational skills.
• Ability to work independently and as part of a team in a fast‑paced environment.

This role will require occasional after‑hours support and participation in on‑call rotations on a weekly basis.

Current INTERNAL home‑based associates:
While this role is posted as hybrid,
if selected and accepted, you may retain your home‑based status
. Edward Jones intends in good faith to continue offering the role as home‑based, though future business or regulatory needs may require on‑site work.

** Candidates that live within a commutable distance from our Tempe, AZ and St. Louis, MO home office locations are expected to work in the office four days per week effective June 1, 2026. Before June 1, 2026, candidates that live within a commutable distance from our Tempe, AZ and St. Louis,…