Senior Microsoft 365 Platform Engineer

Senior Microsoft 365 Platform Engineer 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  and follow Suffolk on Facebook, Twitter, Linked In, You Tube, 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, .

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/One Drive, Entra , Intune, Defender, and Power Platform, handling Tier 2/3 escalations and leading deployments and changes.

• Administer, configure, and maintain Microsoft 365 workloads across Exchange Online, Teams, SharePoint Online/One Drive.
• Manage Entra , 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.
• Implement reference designs and standards defined by the Architect; deliver repeatable, supportable configurations.
• Build and maintain Power Shell and Graph automations for provisioning, reporting, remediation, and license hygiene.
• Lead feature deployments and migrations; coordinate pilots, adoption guides, and rollout plans.
• Enforce DLP, retention, sensitivity labels, Conditional Access, and Defender controls according to policy.
• Maintain audit/compliance reporting; support assessments, investigations, and remediation activities.
• 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.
• Provision Teams/SharePoint sites, implement IA/metadata/search patterns, and support content lifecycle.
• Assist with migrations from legacy file services/SharePoint to SharePoint Online.
• Provide telemetry…