Job Description

About Shamrock Trading Corporation
Shamrock Trading Corporation is a family of brands that has been serving the transportation and logistics industries since 1986. Shamrock offers factoring solutions, export financing, third-party logistics, a fuel card program and trucking technology.
Shamrock’s mission since the start has been to create value and success for our customers, our partners and our people. Strong ethics, dedication to our customers and close attention to the marketplace are critical to the success and growth of the Shamrock brands. Shamrock is headquartered in Overland Park, Kansas, with multiple offices throughout the U.S. Overland Park is a great place to live, work and play, being conveniently located within driving distance of everything Kansas City has to offer. Housed within the heart of Overland Park, our offices include 4 gorgeous towers on the East and West sides of Metcalf Ave. With a heavy community presence and a winning culture, Shamrock is a great place to work in Overland Park!
Why You’ll Love Working Here
Our award-winning culture is a testament to our commitment to growth, recognition and empowerment. From day one, we prioritize employees first, encouraging them to think and act like owners and providing endless opportunities for growth and self-development, both personally and professionally. Shamrock has been recognized as one of America’s 2025 “Most Loved Workplaces” by Newsweek.
At Shamrock, we hire bright, ambitious people and give them the tools they need for a successful, long-term career here. Shamrock also offers a premier set of benefits for employees and their families:
• Training and Development: Ongoing training and professional development opportunities
• Medical: Fully paid healthcare, dental and vision premiums for employees and eligible dependents, and gym benefits
• Financial: Generous company 401(k) contributions and employee stock ownership after one year
• Work-Life Balance: Competitive PTO and work from home opportunities after an introductory period

About the Role
We are seeking a Senior Communications Security Engineer/Analyst to lead the design, implementation, and continuous improvement of security controls across enterprise communication platforms. This role will focus primarily on email security, while also supporting modern collaboration technologies such as Microsoft Teams, Zoom, and Slack.
The ideal candidate is a hands-on security professional with deep expertise in secure messaging ecosystems, threat detection, data protection, and user behavior risk mitigation within communication channels.
What You’ll Do
• Email Security Leadership (Primary Focus)
◦ Design, implement, and maintain enterprise email security.
◦ Manage and tune:
◦ Phishing and malware detection
◦ Email authentication (SPF, DKIM, DMARC)
◦ Safe Links / Safe Attachments or equivalent controls
◦ Lead incident response for phishing, BEC (Business Email Compromise), and email-based threats.
◦ Develop and enforce policies for data loss prevention (DLP) within email systems.
◦ Partner with SOC teams to improve email threat detection and response playbooks.
• Collaboration & Communication Platform Security
◦ Assess and secure communication tools including collaboration applications.
◦ Define and implement security baselines, including:
◦ External sharing controls
◦ Guest access governance
◦ Message retention and compliance policies
• Monitor and mitigate risks related to:
◦ Data leakage
◦ Unauthorized file sharing
◦ Shadow IT usage of communication tools
• Threat Detection & Response
◦ Develop detection use cases for communication-based threats across SIEM/SOAR platforms.
◦ Analyze logs and telemetry from messaging platforms for suspicious activity.
◦ Conduct threat hunting focused on social engineering and communication channel abuse.
• Governance, Risk & Compliance
◦ Align communication security controls with frameworks and policies.
◦ Support audits and compliance requirements related to secure communications and data protection.
◦ Perform risk assessments on new messaging/collaboration tools before adoption.
• User Awareness & Enablement
◦ Collaborate with security awareness teams to reduce phishing susceptibility.
◦ Provide guidance on secure usage of collaboration tools.
◦ Help design simulations and metrics-driven improvement programs.
What You’ll Bring
• 5–8+ years in cybersecurity, with a strong focus on email or messaging security.
• Deep expertise in Microsoft 365 security stack (Defender for Office 365, Purview, Exchange Online Protection).
• Experience with collaboration platforms security (Teams, Slack, Zoom).
• Strong understanding of:
• Email protocols and authentication (SMTP, SPF, DKIM, DMARC)
• Phishing/BEC attack techniques
• DLP and information protection
• Experience with SIEM tools (e.g., Sentinel, Splunk) and alert tuning.
• Ability to analyze and respond to real-world attacks with minimal supervision.
What Will Set You Apart
• Experience with email filtering products.
• Experience with cloud security platforms (Azure, AWS, and GCP).
• Experience building automation or response workflows.
• Strong analytical and threat detection mindset
• Deep understanding of social engineering attack vectors
• Ability to translate risk into actionable controls
• Cross-team collaboration and communication skills
• Reduction in phishing click rates and successful compromises
• Improved detection and response time for email-based threats
• Secure adoption and governance of collaboration platforms
• Audit/compliance readiness for communication systems

Apply Today!
We’re so excited to connect with you! If you want to work with forward-thinking people in an award-winning culture, submit your application today.
#LI-MB1 #LI-Onsite
Having trouble submitting your application? Contact us at Recruiting@shamrocktradingcorp.com for support.