Microsoft 365 Platform Lead

Rincon Consultants, Inc; Ventura (CA); Hybrid; USD 120,000 - 140,000; Full time

Job summary

Rincon Consultants, Inc. seeks a Microsoft 365 Platform Lead to own and operate the Microsoft 365 E5 control plane, administering identity, endpoint, collaboration, and data protection with governance standards.

The role reduces risk, standardizes tenant configuration, and enhances operational maturity. Hybrid work arrangement is available; candidates within 50 miles of a Rincon office are prioritized, including Ventura.

Qualifications

• 5+ years administering Microsoft 365 in an enterprise environment.
• Experience with security and compliance in regulated environments.
• Ability to document configurations clearly and consistently.
• Strong cross-functional communication and collaboration skills.

Responsibilities

• Administer tenant configuration and governance across the Microsoft 365 platform.
• Manage Entra ID, Intune, Defender, Purview, SharePoint, Teams, and related services.
• Maintain baseline platform configurations and coordinate with MSP partners.
• Develop and document runbooks, standards, and support procedures to improve governance and security.

Skills

M365 administration

Governance

IAM

Security & compliance

SharePoint & Teams

Tools

Purview

SharePoint

Teams

Entra ID

Intune

Defender

Fabric

Job description

About Us

We are an award‑winning California‑based environmental consulting firm with 550+ professionals and more than 30 years of diverse experience serving clients in transportation, energy, water, infrastructure, private development, and government sectors. Our mission is to deliver practical, science‑based environmental and planning solutions that support communities, infrastructure, and natural systems.

As a people‑centric organization, we value collaboration, fairness, and transparency, and are committed to fostering a workplace that supports both personal and professional growth while offering robust career opportunities. We are especially proud of our recent Great Place To Work® certification.

About The Role

Rincon Consultants, Inc. is seeking a Microsoft 365 Platform Lead to own and operate the Microsoft 365 E5 control plane. This role is responsible for administering identity, endpoint, collaboration, and data protection platforms; establishing enforceable governance standards; and enabling AI capabilities securely and responsibly.

This position plays a critical role in reducing organizational risk, standardizing Microsoft tenant configuration, improving operational maturity, and decreasing reliance on managed service providers for core Microsoft platform administration.

How We Collaborate

This role may offer a hybrid work setup, blending time in the office with remote work as business needs evolve. We prioritize candidates who live within 50 miles of a Rincon office. Eligible office locations include Carlsbad, Fresno, Los Angeles, Monterey, Oakland, Palm Springs, Riverside, Sacramento, San Luis Obispo, San Diego, San Jose, Santa Barbara, and Ventura. This position is also open to candidates outside of California.

What You’ll Do

Microsoft Platform Administration

• Manage tenant configuration, platform changes, testing, and documentation to support operational stability and scalability.
• Ensure consistent, secure configuration across Microsoft E5 services.
• Administer and maintain Microsoft Entra ID, Intune, Microsoft Defender, Microsoft Purview, SharePoint, Teams, and related Microsoft 365 services.
• Own baseline Microsoft Fabric control plane configuration and coordination in partnership with data and enablement teams.

AI Enablement

• Enable AI safely by implementing appropriate sensitivity labels, DLP policies, retention controls, and sharing and access boundaries.
• Assess and remediate oversharing, permissions, and content exposure risks that could affect AI‑enabled experiences.
• Ensure AI capabilities operate within approved governance, compliance, and access models.

Platform Standards & Improvement

• Develop tenant‑wide standards that reduce support tickets and improve automation and self‑service.
• Improve overall Microsoft E5 security posture without introducing excessive operational burden.
• Document platform standards, configurations, runbooks, and support procedures to support consistency and scalability.
• Recommend and implement improvements that strengthen governance, security, usability, and long‑term maintainability of the Microsoft environment.

Vendor & MSP Coordination

• Serve as the internal administrator for Microsoft tenant configuration in collaboration with MSP partners.
• Coordinate with MSPs and specialty vendors for overflow or specialized platform work as needed.
• Reduce long‑term dependency on external providers for routine tenant administration while maintaining effective escalation paths for advanced or specialized support.

What You’ll Bring

• 5+ years of experience administering Microsoft 365 and related platforms in an enterprise environment.
• Experience supporting or administering Microsoft 365 security and compliance capabilities in a regulated or policy‑driven environment.
• Strong understanding of Microsoft 365 governance, tenant administration, identity and access management, endpoint management, and collaboration security.
• Hands‑on experience with Microsoft Purview, SharePoint, and Teams administration.
• Demonstrated experience implementing and managing Conditional Access, MFA, device compliance, DLP, retention, sensitivity labeling, and privileged access controls.
• Ability to document standards, procedures, and technical configurations clearly and consistently.
• Strong problem‑solving, organizational, and communication skills.
• Ability to work effectively across technical, operational, and leadership teams.

Nice to Have

• Microsoft certifications such as MS‑102, SC‑300, SC‑400, MD‑102, or AZ‑500.
• Experience supporting AI readiness, rollout, or governance.
• Experience with Microsoft Fabric administration or coordination.
• Experience working with MSPs, external partners, or outsourced support models.
• Experience in professional services, consulting, or other multi‑project business environments.
• Familiarity with compliance and audit support.

Investing in You

The base salary range for this full‑time position is $120,000 to $140,000, plus a generous benefits program. Salary ranges are based on the market median of similar jobs.

We offer a comprehensive Total Rewards Package designed to support employee well‑being, growth, and financial security. Our benefits include health coverage options, employer‑sponsored insurance, retirement benefits, generous time off, and programs that support learning, growth, and community engagement.

Additional Employment Information

Individuals offered employment must successfully complete a pre‑employment drug screening as a condition of employment. Those hired for federal projects will be subject to further drug testing, including screening for cannabinoids (THC/marijuana), in compliance with the Drug‑Free Workplace Act of 1988 and other applicable federal regulations, which take precedence over California state and local laws.

Rincon Consultants does not accept unsolicited applicant resumes from search firms that do not have a signed contract. Rincon Consultants is an equal‑opportunity employer. All aspects of employment will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, veteran status, or any other status protected under federal, state, or local law.

This position is currently open and accepting applications.