Note: The job is a remote job and is open to candidates in USA. Maximus is a trusted federal partner supporting mission-critical programs across national security, defense, and public service delivery. The M365 Platform Engineer will provide Tier-3 engineering support for Microsoft 365 environments, ensuring platform availability, performance, and security while managing enterprise email and messaging services.
Responsibilities
- Provide Tier‑3 engineering support for Microsoft 365 GCC, Exchange Online, hybrid Exchange Server, and SharePoint Online environments, ensuring platform availability, performance, and security
- Manage, monitor, restore, and optimize enterprise email and messaging services, including mailbox services, transport, retention, and e‑discovery capabilities
- Support SharePoint Online platform operations, including site collections, permissions, integrations, and collaboration workloads aligned with enterprise messaging services
- Plan, test, execute, and support upgrades, patches, and migrations across cloud and hybrid environments while minimizing user impact and service disruption
- Perform break‑fix restoration, root cause analysis, and complex incident resolution in coordination with incident management and cybersecurity teams
- Support the segregation and elimination of malicious software and spam traffic in accordance with security policies and directives
- Develop and maintain technical documentation, standard operating procedures, and platform diagrams
Skills
- Ability to obtain and maintain a Public Trust is required
- Must be a U.S. Citizen without dual citizenship
- Bachelor's degree in Information Technology, Computer Science, or a related field or equivalent years of relevant experience
- Microsoft 365 Certified: Enterprise Administrator Associate or equivalent Microsoft cloud certification
- ITIL Foundation (or equivalent ITSM experience)
- 5+ years supporting Microsoft enterprise collaboration platforms, including Microsoft 365, Exchange, and/or SharePoint in cloud or hybrid environments
- Demonstrated experience administering Microsoft 365 (Government or Commercial) environments, including Exchange Online and hybrid Exchange Server, supporting large enterprise user populations (10,000+ users)
- Hands‑on experience providing Tier‑3 engineering support, including complex incident resolution, root cause analysis, service restoration, and execution of approved changes in production cloud and hybrid environments
- Experience administering SharePoint Online, including site collections, permissions, governance controls, and integration with Microsoft 365 collaboration services
- Experience planning and executing upgrades, patches, and migrations for enterprise messaging and collaboration platforms
- Working knowledge of email security and malware mitigation, including spam filtering, malicious content isolation, and alignment with cybersecurity policies and NIST SP 800‑53 controls
- Possession of a Microsoft cloud certification (e.g., Microsoft 365 or Azure Administrator) and ability to obtain and maintain a Public Trust (or higher) clearance
- Hands‑on experience with Microsoft 365 GCC or other regulated government cloud environments
- Experience supporting large‑scale hybrid Exchange deployments
- Strong understanding of email security, spam filtering, and malware mitigation
- Experience with SharePoint Online administration and integration with Teams and Exchange
- Familiarity with ServiceNow or similar ITSM platforms
- Experience operating in a 24x7x365 enterprise operations environment
Benefits
- Health insurance coverage
- Life and disability insurance
- A retirement savings plan
- Paid holidays
- Paid time off
- Short- and long-term incentives
- Program-specific awards
- Reasonable accommodations to individuals requiring assistance during any phase of the employment process due to a disability, medical condition, or physical or mental impairment
Company Overview