System Security Engineer III

This job posting is anticipated to remain open for 30 days, from 19-May-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.

Team Overview

The Engineer III, System Security Engineer plays a key role in protecting the firm’s enterprise computing environment by designing, implementing, and operating foundational security controls across endpoints, operating systems, and device access. This is a hands-on engineering position within the System Security team, partnering closely with infrastructure, identity, risk, and application teams to reduce risk while enabling the business.

Engineers in this role work on initiatives aligned to modern security strategies such as zero trust, endpoint protection, device authentication, and system hardening, while continuing to deepen their technical expertise and broaden their impact across the enterprise.

What You’ll Do

• Design, implement, and operate enterprise system security controls that protect endpoints, operating systems, and device access.

• Contribute to security initiatives such as zero trust, endpoint protection, system hardening, and device authentication.

• Partner cross‑functionally with infrastructure, identity, application, and risk teams to embed security into technology solutions.

• Identify security risks and recommend pragmatic improvements that balance protection, usability, and business needs.

• Provide operational support for critical security platforms to ensure availability, resilience, and rapid issue resolution.

• Lead moderate‑complexity security initiatives and contribute to larger, cross‑team security efforts.

• Mentor and support junior engineers through knowledge sharing, technical guidance, and best practices.

What Experience You'll Need

• Bachelor’s degree in Information Systems, Cybersecurity, Engineering, or a related field or equivalent practical experience .

• 4–6 years of experience in systems engineering, security engineering, or a closely related technical role.

• Hands‑on experience implementing or supporting system security controls (e.g., endpoint protection, OS hardening, device access).

• Working knowledge of Windows and/or Linux environments, including basic security configuration and hardening concepts.

• Experience collaborating with cross‑functional technical teams to deliver security‑focused solutions.

• Strong troubleshooting and problem‑solving skills, with the ability to assess risk and recommend practical remediation.

• Ability to learn new security tools, platforms, and domains through hands‑on experience.

What Could Set You Apart

• Experience with endpoint security platforms, device authentication, or zero‑trust–aligned technologies.

• Exposure to PKI, certificate lifecycle management, or certificate‑based authentication.

• Familiarity with Active Directory, Group Policy, or similar configuration management tools.

• Experience with scripting or automation (e.g., PowerShell, Python, shell scripting) for efficiency or troubleshooting.

• Knowledge of CIS benchmarks, vulnerability remediation practices, or system hardening standards.

• Industry certifications (e.g., Security+, SSCP, CISSP, or similar).

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.

At Edward Jones, we are building a place where everyone feels like they belong. We're proud of our associates' contributions to the firm and the recognitions we have received.

Check out our U.S. awards and accolades: Insights & Information Blog Postings about Edward Jones (

Check out our Canadian awards and accolades: Insights & Information Blog Postings about Edward Jones (

Edward Jones does not discriminate on the basis of race, color, gender, religion, national origin, age, disability, sexual orientation, pregnancy, veteran status, genetic information or any other basis prohibited by applicable law.

Edward Jones' compensation and benefits package includes medical and prescription drug, dental, vision, voluntary benefits (such as accident, hospital indemnity, and critical illness), short- and long-term disability, basic life, and basic AD&D coverage. Short- and long-term disability, basic life, and basic AD&D coverage are provided at no cost to associates. Edward Jones offers a 401k retirement plan, and tax-advantaged accounts: health savings account, and flexible spending account. Edward Jones observes ten paid holidays and provides 15 days of vacation for new associates beginning on January 1 of each year, as well as sick time, personal days, and a paid day for volunteerism. Associates may be eligible for bonuses and profit sharing. All associates are eligible for the firm's Employee Assistance Program. For more information on the Benefits available to Edward Jones associates, please visit our benefits page ( .