Senior Systems Engineer

Company Description TrueTandem's mission is to be a trusted information technology solutions provider, committed to the success of our customers, communities and employees. To enable this mission, we listen to our customers’ needs, empower our dedicated and talented employees, envision success together, and deliver innovative cost-effective solutions. For our customers, we aim to deliver more power to meet their business outcomes through technology implementation, integration, optimization and customization. We enable some of the most well-known companies, nonprofits and federal agencies in the United States to intelligently plan and develop their applications, modernize their infrastructure and manage their data. Job Description: The Senior Systems Engineer will serve as the technical lead for the organization’s SharePoint Online environment, provide support and guidance for Power Platform development initiatives, and act as a Tier 3 escalation point for complex IT issues. This role combines deep technical expertise with a strong customer-service mindset, ensuring a secure, efficient, and highly available digital workplace. Our delivery teams are driven to explore new ideas and technology, and care deeply about collaboration, feedback, and iteration. We follow agile practices, embrace DevOps standards to “automate-first”, use modern tech stacks, and constantly challenge each other to grow and improve.   Responsibilities: ·          Serve as the primary administrator for SharePoint Online and related Microsoft 365 services. ·          Design, configure, and maintain site collections, content types, permissions, workflows, and governance policies. ·          Implement and support site migrations, structure redesign, and content lifecycle planning. ·          Monitor system performance, capacity, and compliance with security standards. ·          Collaborate with business stakeholders to create scalable and user‑friendly solutions. Maintain high‑quality artifacts: test plans, test cases, defect logs, training decks, learner guides ·          Support low-code/no-code development in Power Platform (Power Apps, Power Automate, Dataverse). ·          Act as the Tier 3 escalation point for complex issues involving Microsoft 365, SharePoint, identity, and network dependencies. ·          Lead root-cause analysis for recurring problems and drive long-term fixes. ·          Collaborate with vendors and internal teams to resolve advanced technical issues. ·          Create and maintain documentation for troubleshooting, workflows, and operational procedures. ·          Ensure compliance with organizational and federal IT security standards. Qualifications: ·       * US Citizen and active Public Trust* ·       Bachelor's degree OR equivalent work experience ·       7-10+ years of experience in system engineering or a similar role ·       Strong understanding of SDLC/Agile frameworks (Scrum) and DevOps/CI‑CD practices ·       Excellent communication, facilitation, and stakeholder engagement skills; comfortable with executive briefings ·       Working knowledge of Section 508 accessibility standards and tools ·       Expertise in SharePoint Online administration, development support, and site architecture. ·       Hands-on experience with Microsoft Power Platform (Power Apps, Power Automate, Dataverse). ·       Strong understanding of Microsoft 365 ecosystem including Teams, OneDrive, Exchange Online, and Azure AD. ·       Proven Tier 3 troubleshooting skills across complex environments (identity, permissions, integrations, networking dependencies). Desired Qualifications: ·       Understanding of Security and testing basics to ensure compliance with federal standards ·       Strong analytical and problem-solving skills with the ability to translate complex data into actionable insights. ·       Excellent communication and collaboration skills with the ability to interact effectively with cross-functional teams and convey complex data insights. ·       Knowledge of federal compliance standards (FedRAMP, NIST, etc.) ·       Microsoft certifications such as: MS-700, MS-720, MS-900, PL-200, AZ-104, or related.