What are the responsibilities and job description for the Security Engineer position at Aptonet?
Role Summary
Senior Microsoft O365 Security Engineer & Subject Matter Expert responsible for designing, implementing, and managing Microsoft 365 security solutions across IT/OT environments. This role provides technical leadership, drives security architecture, ensures compliance, and supports secure deployment of M365 technologies within a federal environment.
Key Responsibilities
- Provide strategic guidance, oversight, and technical leadership for M365 application deployment across IT/OT environments
- Design, implement, and manage Microsoft 365 security solutions and compliance controls in a multi-tenant environment
- Lead security initiatives across MS Defender (EDR & Email Security) and Purview (DLP, compliance, governance)
- Architect and enhance M365 security solutions across on-premises and cloud environments (Azure & AWS)
- Perform risk assessments and identify gaps in security coverage
- Research emerging threats, vulnerabilities, and evasion techniques related to M365 security
- Configure and manage identity and access management using Entra ID
- Develop technical artifacts including requirements, architecture diagrams, test plans, and implementation plans
- Collaborate with cross-functional teams including program management, SOC, security engineering, compliance, and system owners
- Support Proof of Concept (PoC) initiatives and conduct analysis of alternatives (AoA)
- Develop scope, cost estimates, and implementation schedules for M365 deployments
- Participate in business continuity and disaster recovery planning
- Interface with stakeholders and lead technical discussions and working groups
- Apply systems and software development lifecycle (SDLC) practices
Required Technical Skills
- Microsoft 365 Security Architecture and Administration
- MS Defender (EDR, Email Security)
- Microsoft Purview (DLP, Compliance, Governance, eDiscovery)
- Microsoft Entra ID (Identity and Access Management)
- Microsoft Intune (GPO policy management)
- Microsoft Sentinel
- SharePoint, Teams, OneDrive
- Azure AD and cloud security services
- Experience with hybrid, on-premises, and cloud (Azure & AWS) environments
- PowerShell scripting
- Security frameworks and compliance standards (NIST, ISO 27001, SOC2)
- Risk assessment, threat detection, and incident response
- Documentation of architecture, procedures, and technical reports
Qualifications & Experience
- Bachelor’s degree in Information Technology, Computer Science, Engineering, or related field
- 10 years of experience in M365 security administration, deployment, and architecture
- Strong hands-on experience designing end-to-end M365 security solutions
- Experience providing technical leadership and oversight
- Microsoft 365 certifications (e.g., MS-102, MS-900)
- U.S. Citizenship required
- Ability to obtain Public Trust clearance (active clearance preferred)
- Strong analytical, problem-solving, communication, and presentation skills
- Ability to work independently and in collaborative environments
Work Environment
- Location: Washington, DC (Hybrid – 1 day onsite per week)
- Work Site: Government/Customer site
- Schedule: Standard business hours, 40 hours/week
- Duration: 6 months with potential extension or conversion
Salary : $75 - $80