Senior O365 Messaging & Exchange Engineer

Senior O365 Messaging & Exchange Engineer

Location: Hybrid – 4 days/week onsite in Columbus, OH 43219

Are you a seasoned messaging engineer with deep expertise in Microsoft Exchange Online and email security? Join our team as a Senior O365 Messaging & Exchange Engineer, where you'll lead the design, engineering, and advanced support of our enterprise messaging platform.

What You'll Do

Design & Architecture

• Engineer and optimize messaging solutions using Microsoft Exchange Online and hybrid configurations.
• Lead migrations and integrations during M&A and platform transitions.
• Develop policies and transport rules to meet compliance needs.

Operational Excellence

• Serve as a tier-3 escalation point for complex messaging issues.
• Conduct root cause analysis and implement long-term fixes.
• Monitor system health and proactively address risks.

Security & Compliance

• Administer email security tools like Proofpoint, Cisco IronPort, or similar.
• Implement anti-phishing, spam filtering, and DLP measures.
• Collaborate with security teams to meet audit standards.

Process & Automation

• Maintain runbooks and engineering documentation.
• Use ServiceNow for ITSM processes.
• Identify and implement automation opportunities.

What You Bring

Must-Have Skills

• 7+ years in Microsoft Exchange (on-prem & O365)
• Expertise in hybrid deployments and troubleshooting
• Strong PowerShell scripting
• Experience with email security platforms (Proofpoint, IronPort, etc.)
• Familiarity with ServiceNow and O365 compliance policies

Nice-to-Have Skills

• Experience with IronPort ESA, Proofpoint, Abnormal
• Knowledge of Microsoft Teams, OneDrive, SharePoint Online
• Exposure to Azure AD, MFA, and conditional access
• Understanding of email archiving and eDiscovery
• M&A IT integration experience

Pay and Benefits

The pay range for this position is $45.00 - $55.00/hr. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:

• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

Workplace Type

This is a hybrid position in Columbus, OH.

Application Deadline: This position is anticipated to close on Sep 3, 2025.

About TEKsystems

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company. The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com. The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.