Senior Microsoft 365 Platform Engineer
US-MA-Boston
Suffolk Construction Company
Req #: 9783
Type: Regular Full-Time
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Overview: About Suffolk Suffolk is a national enterprise that builds, innovates, and invests. We provide value across the entire project lifecycle through our core construction management services and complementary business lines in real estate investment, design, self-perform construction, and technology start-up investment (Suffolk Technologies). By integrating data, artificial intelligence, and advanced technology through our Seamless Platform, we connect design, construction, and operations to deliver smarter, more predictable results and redefine how America builds. Suffolk - America's Contractor - is a national company with more than $8 billion in annual revenue, 3,000 employees, and 17 offices, including Boston (headquarters), New York City, Miami, West Palm Beach, Tampa, Estero, Dallas, Los Angeles, San Francisco, San Diego, Las Vegas, Herndon, U.S. Virgin Islands, and other key markets. Suffolk manages some of the most complex and transformative projects in the country, serving clients across healthcare, life sciences, education, gaming, aviation, transportation, government, mission critical, and commercial sectors. Suffolk is privately held and is led by founder, chairman and CEO John Fish. Suffolk is ranked #8 on ENR's list of "Top CM-at-Risk Contractors." For more information, visit www.suffolk.com and follow Suffolk on Facebook, Twitter, LinkedIn, YouTube, and Instagram. At Suffolk, we believe that our total rewards program should offer you and your family the support you need when it matters most. That's why we have created a program that provides employees with access to a wide variety of options that can be personalized to support you and your loved ones physically, emotionally, and financially. Benefits include, competitive salaries, auto allowances and gas cards for certain roles, access to market leading medical and emotional and mental health benefits, dental, and vision insurance plans, virtual care options for physical therapy and primary care, generous paid time off, 401k plan with employer match and access to expert financial resources, company paid and voluntary life insurance, tax deferred savings accounts, 10 backup daycare days each year, short- and long-term disability, commuter benefits and more. For more information, click here. Role Summary The Senior Microsoft 365 Platform Engineer is the operational and engineering core of Suffolk's Microsoft ecosystem. This role manages tenant‑wide services, implements the Architect's designs and standards, and drives automation‑first operations. The Engineer ensures reliability, security, and user experience across Exchange Online, Teams, SharePoint/OneDrive, Entra ID, Intune, Defender, and Power Platform, handling Tier 2/3 escalations and leading deployments and changes. Responsibilities: * Administer, configure, and maintain Microsoft 365 workloads across Exchange Online, Teams, SharePoint Online/OneDrive. * Manage Entra ID objects, Conditional Access, MFA, identity lifecycle, and directory hygiene. * Operate Intune for device onboarding, compliance policies, app packaging/deployment, and security baselines. * Handle Tier 2/3 incidents/problems; manage change control, maintenance windows, and service communications. Engineering & Automation * Implement reference designs and standards defined by the Architect; deliver repeatable, supportable configurations. * Build and maintain PowerShell and Graph automations for provisioning, reporting, remediation, and license hygiene. * Lead feature deployments and migrations; coordinate pilots, adoption guides, and rollout plans. Security & Compliance Enablement * Enforce DLP, retention, sensitivity labels, Conditional Access, and Defender controls according to policy. * Maintain audit/compliance reporting; support assessments, investigations, and remediation activities. Power Platform Administration & ALM * Administer environments, connectors, and DLP policies; support solution ALM and pipelines per CoE standards. * Provide enablement to citizen developers within guardrails; review connectors and data access. Collaboration Services Enablement * Provision Teams/SharePoint sites, implement IA/metadata/search patterns, and support * content lifecycle. * Assist with migrations from legacy file services/SharePoint to SharePoint Online. Service Management & Support Engagement * Provide telemetry and usage insights for capacity planning and license optimization. * Engage Microsoft Premier/Unified Support for technical escalations and proactive services. Qualifications: Required * 5+ years administering Microsoft 365 at enterprise scale ( 1,000 users). * Deep experience with Exchange Online, Teams, SharePoint/OneDrive, Entra ID, Intune, and Defender. * Strong PowerShell and Graph API skills for automation and reporting. * Proven delivery of tenant‑wide changes, migrations, and complex incident/problem resolution. * Practical knowledge of Purview features (retention, DLP, eDiscovery) and security baselines. Preferred Qualifications * Microsoft Certified: Enterprise Administrator Expert and/or Messaging/Teams/Endpoint Administrator. * Experience with Power Platform administration and CI/CD/ALM patterns. * Experience in environments with regulatory or contractual compliance requirements. Success Metrics * Incident and change resolution timeliness and quality * Platform configuration compliance with standards * Automation coverage and reduction of manual tasks * Tenant health and performance (alerts, capacity, hygiene) * User satisfaction with Microsoft 365 services Leadership Competencies * Hands‑on executor with strong operational discipline and ownership mindset. * Clear communicator who collaborates effectively with architects, security, support, and business teams. * Continuous learner who tracks Microsoft roadmap changes and adopts best practices.
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