Email Security Engineer

UnitedHealth Group; Philippines; Hybrid; PHP 900,000 - 1,500,000; Full time

Job summary

UnitedHealth Group is seeking a Security Engineer, Email Security to design and implement enterprise email security architectures across our global health tech platforms.

You will lead technical evaluations, establish secure baselines, and ensure policy compliance while leveraging AI-driven tooling to optimize security workflows. The role requires hands-on expertise with SIEM/XDR/XEM and endpoint protection in a large enterprise setting.

Qualifications

• Bachelor's degree or 4+ years of equivalent information security or software engineering experience.
• 3+ years designing, implementing, and administering enterprise email security technologies.
• 3+ years establishing engineering standards, secure configuration baselines, and technical documentation.
• 3+ years with email authentication protocols (DMARC, DKIM, SPF).
• 2+ years in information security engineering, security operations, or cyber defense engineering.
• 2+ years hands-on with SIEM, XDR, or XEM platforms.
• Knowledge of NIST, CIS, MITRE ATT&CK.

Responsibilities

• Design, build, and maintain scalable enterprise email security architectures.
• Maintain engineering standards and secure baselines across environments.
• Lead POV/POC initiatives for new email security capabilities and vendors.
• Monitor configuration drift and enforce governance of security baselines.
• Automate workflows with AI tools and scripting to improve security operations.
• Review industry trends to inform multi-year security roadmaps.
• Operate CrowdStrike and Defender for Endpoint for assigned clients.

Skills

Enterprise email security

DMARC / DKIM / SPF

Engineering standards

POC / POV evaluations

Security operations

AI governance & automation

NIST / CIS / MITRE

Identity / cloud governance

POV/POC technology leadership

Education

Bachelor's degree or 4+ years information security/software engineering

Tools

SIEM

XDR

XEM

CrowdStrike

Microsoft Defender for Endpoint

Job description

Optum is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will find a culture guided by inclusion, talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities we serve as you help us advance health optimization on a global scale. Join us to start Caring. Connecting. Growing together.

Position Summary

The Cyber Defense Team at Optum Insight is seeking a Security Engineer, Email Security to serve as the technical subject matter expert responsible for the design, standardization, implementation, and continuous improvement of enterprise email security capabilities. This role focuses on platform architecture, engineering governance, secure baseline management, and technology strategy. Working with advanced email protection technologies and AI-driven solutions, you will lead proof-of-concept evaluations, engineer platform integrations and telemetry automation, and establish robust technical standards that safeguard enterprise communications across our global health technology infrastructure.

Primary Responsibilities:

• Serve as the technical subject matter expert for enterprise email security, designing, building, and maintaining scalable and resilient email security architectures and platform infrastructure
• Establish and maintain enterprise engineering standards, secure configuration baselines, technical implementation standards, and architecture documentation
• Lead technical evaluations, proof-of-value (POV), and proof-of-concept (POC) initiatives for emerging email security capabilities, vendor offerings, and innovative tools
• Monitor and remediate configuration drift, conducting periodic reviews to ensure continuous alignment with security baselines and organizational governance
• Use enterprise-approved AI tools and scripting frameworks to streamline engineering workflows, automate administrative functions, and drive continuous capability maturity
• Evaluate emerging industry trends, threat patterns, and technology developments contributing to multi-year engineering roadmaps and strategic security initiatives
• Administer, maintain, and operate the CrowdStrike and Microsoft Defender for Endpoint platform for assigned clients
• Perform daily endpoint security checks, including sensor status, agent connectivity and policy compliance
• Manage and maintain EDR policies including - Prevention and Detection policies, Real-Time Protection, Attack Surface Reduction rules, Behavioral detection tuning
• Configure and manage exclusions, whitelisting and false-positive handling
• Create and maintain dashboards and reports for - Endpoint compliance, EDR metrics
• Comply with the terms and conditions of the employment contract, company policies and procedures, and any and all directives (such as, but not limited to, transfer and/or re-assignment to different work locations, change in teams and/or work shifts, policies in regards to flexibility of work benefits and/or work environment, alternative work arrangements, and other decisions that may arise due to the changing business environment). The Company may adopt, vary or rescind these policies and directives in its absolute discretion and without any limitation (implied or otherwise) on its ability to do so

Required Qualifications:

• Bachelor's degree or 4+ years of equivalent information security or software engineering experience
• 3+ years of hands-on experience designing, implementing, and administering enterprise email security technologies
• 3+ years of experience establishing engineering standards, secure configuration baselines, technical documentation, or hardening guides
• 3+ years of experience with e-mail authentication protocols (DMARC, DKIM, SPF) and advanced e-mail protection capabilities
• 2+ years of experience in information security engineering, security operations, or cyber defense engineering
• 2+ years of hands-on experience with enterprise security tools and platforms including SIEM, XDR, or XEM
• Knowledge of security frameworks NIST, CIS controls, MITRE ATT&CK

Preferred Qualifications:

• Professional cybersecurity certifications, industry certifications or relevant vendor certifications (Microsoft Certified Cybersecurity Architect, CrowdStrike CCFA/CCFR)
• Experience supporting large, complex, or highly regulated enterprise environments
• Experience leading proof-of-concept (POC) / proof-of-value (POV) technology evaluations and platform selection initiatives
• Experience with enterprise identity, endpoint, cloud, or AI governance frameworks

At UnitedHealth Group, our mission is to help people live healthier lives and make the health system work better for everyone. We believe everyone-of every race, gender, sexuality, age, location and income-deserves the opportunity to live their healthiest life. Today, however, there are still far too many barriers to good health which are disproportionately experienced by people of color, historically marginalized groups and those with lower incomes. We are committed to mitigating our impact on the environment and enabling and delivering equitable care that addresses health disparities and improves health outcomes - an enterprise priority reflected in our mission.

Optum is a drug-free workplace. © 2026 Optum Global Solutions (Philippines) Inc. All rights reserved.