Email Security Engineer

Corteva Agriscience

Email Security Engineer architecting and securing Corteva’s Exchange, Microsoft 365, and enterprise messaging infrastructure. Supporting mail flow, authentication, incident response, and compliance for a global agriscience company.

Posted 8/19/2026full-timeRemote • Iowa • 🇺🇸 United StatesMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in architecting and supporting enterprise Exchange environments, including Exchange Online and hybrid systems, while ensuring compliance and security within messaging platforms. Proficient in managing email security tools and incident response, with strong communication skills for stakeholder engagement.

Highest-signal resume keywords

Exchange Online ArchitectureEmail Security Tools ManagementIncident Response LeadershipPowerShell ScriptingActive Directory Integration

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Exchange OnlineMicrosoft 365Exchange Server 2019/SESMTPDMARCSPFDKIMTransport ServicesEmail AuthenticationCompliance Policies

Soft Skills

Strong Communication SkillsTeam ManagementCross-Functional Collaboration

Tools & Technologies

ProofpointCiscoMimecastMicrosoft EOPActive DirectoryAzure Active DirectoryMSS ProvidersSOC Teams

Certifications & Qualifications

ITIL CertificationMicrosoft Certifications

Industry Keywords

Email SecurityMessaging GatewaysMail FlowHybrid ConnectivityOperational Readiness

Tech Stack

Tools & technologies

AzureSMTP

About the role

Key responsibilities & impact

Provide advanced engineering and architecture support for Exchange Online, Office 365, hybrid, and on-premises systems
Design, support, and improve enterprise messaging capabilities across email, SMTP, distribution lists, shared mailboxes, transport services, and mail flow integrations
Own operational support for Exchange security platforms and controls, including Proofpoint, DMARC, SPF, DKIM, EOP, and third-party messaging gateways
Manage and coordinate changes impacting messaging and related applications
Lead incident response efforts for incidents impacting mail and related applications
Provide senior-level engineering support for Exchange, SMTP relay, transport, and related messaging services
Provide architecture support for mail flow, Exchange topology, hybrid connectivity, identity integration, security controls, and messaging roadmaps
Manage change, release management, testing, operational readiness, and transition acceptance
Deliver projects involving Exchange user migrations and Active Directory data integration with messaging platforms
Communicate and interface with internal and external stakeholders affected by service disruptions, additions, changes, or reductions in service
Ensure information security and compliance within the messaging environment
Administer and improve email security tooling and controls, including anti-phishing, anti-spoofing, email authentication, quarantine, policy tuning, and secure mail routing
Partner with Managed Security Services resources to investigate email security events, coordinate response actions, tune detections and policies, and improve messaging security operations
Lead complex troubleshooting and root-cause analysis for escalated messaging, mail flow, authentication, delivery, and security incidents
Maintain and review knowledge-base articles and documentation

Requirements

What you’ll need

Senior-level experience architecting, engineering, administering, and supporting enterprise Exchange environments, including Exchange Online, Microsoft 365, Exchange hybrid, and on-premises Exchange
Strong hands-on experience with Exchange security tools and messaging gateways such as Proofpoint, Cisco, Mimecast, Microsoft EOP, and related mail sanitation and threat protection platforms
Hands-on experience working with Microsoft Exchange Server 2019/SE and Office 365
Deep understanding of Exchange transport, SMTP, TLS, connectors, mail routing, hybrid mail flow, accepted domains, relays, and message hygiene controls
Good understanding of Exchange databases, MBX and CAS server model
Good understanding of Active Directory and Azure Active Directory
Good understanding of O365 Licensing services and offerings
Experience implementing and managing Microsoft Exchange Online
Working knowledge of implementing compliance policies and RBAC model
Some PowerShell scripting understanding to write scripts for implementing changes and troubleshooting issues for large numbers of users
Experience implementing whitelisting, relays, and compliance in messaging gateways and EOP
Experience implementing and supporting email authentication and domain protection controls, including DMARC, SPF, DKIM, domain alignment, spoofing protection, and reporting-based remediation
Experience working with MSS providers, SOC teams, and security operations resources to manage email security incidents, tune controls, review detections, and support operational handoffs
Experience working with vendors, SLAs, product roadmaps, and support lifecycles
Understanding of Directory Synchronization/AD Connect/Microsoft Entra Connect sync
ITIL and Microsoft certifications are a plus
Experience in Active Directory and Microsoft Exchange hybrid servers is desirable
Strong verbal and written communication skills
Experience managing externally contracted team resources
Experience partnering with vendors and suppliers
Ability to work with cross-functional global teams

Benefits

Comp & perks

Numerous development opportunities offered to build your skills
Health benefits for you and your family on your first day of employment
Four weeks of paid time off and two weeks of well-being pay per year, plus paid holidays
Excellent parental leave which includes a minimum of 16 weeks for mother and father
Competitive retirement savings plan
Tuition reimbursement program