{"id":2384209,"url":"https://alion.io/job/csc-senior-sharepoint-platform-engineer","title":"Senior SharePoint Platform Engineer","company":{"id":20296,"name":"CSC","domain":"cscglobal.com","url":"https://alion.io/company/csc","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Oracle","truth_index":{"grade":"A","score":89,"open_postings":31,"ghost_share":0,"stale_share":0.419,"repost_share":0.032,"time_to_fill_p50_days":59,"computed_at":"2026-10-12T06:55:09Z"}},"role":"Enterprise Apps","role_family":"Enterprise Apps","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":44000,"max_usd":122000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":1211},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Azure","optional":false},{"name":"Azure DevOps","optional":false},{"name":"Git","optional":false},{"name":"Least Privilege","optional":false},{"name":"Microsoft Entra ID","optional":false},{"name":"Node JS","optional":false},{"name":"OneDrive","optional":false},{"name":"Power Apps","optional":false},{"name":"Power Automate","optional":false},{"name":"PowerShell","optional":false},{"name":"React.js","optional":false},{"name":"Rest API","optional":false},{"name":"SharePoint","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"DLP","optional":true},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-12T16:10:35Z","employer_posted_date":"2026-10-12","last_verified_at":"2026-10-12T23:44:51Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Senior SharePoint Platform Engineer\nLondon, United Kingdom\nFull time, Hybrid (3 Days Onsite)\nMonday - Friday, 9:00 am - 5:30 pm\nIntroduction to the role\nThe Senior SharePoint Platform Engineer is responsible for the administration, architecture, governance, engineering, and continuous improvement of the organisation’s SharePoint Online platform and related Microsoft 365 services.\nThe role designs, builds, and supports secure, scalable, and user-friendly SharePoint sites and business solutions. It combines strong SharePoint platform administration with solution development, automation, integration, and migration capabilities.\nThis role partners closely with business stakeholders, product owners, and IT teams to deliver solutions that improve productivity, enhance collaboration, and standardize information management.\nKey Responsibilities\nSharePoint platform administration and architecture\nAdminister and support SharePoint Online.\nDefine and maintain the SharePoint Online architecture.\nManage site creation, configuration, ownership, permissions, sharing controls, storage, versioning, restoration, archival, and deletion.\nEstablish standards for site structure, naming, metadata, content types, site columns, navigation, and information architecture.\nImplement lifecycle controls for inactive, ownerless, duplicated, or non-compliant sites.\nMonitor service health, usage, adoption, storage, capacity, and performance, recommending improvements where required.\nSecurity, compliance, and governance\nDesign and implement secure access models using role-based access, least-privilege principles, and appropriate permission inheritance.\nManage permissions across SharePoint sites.\nMonitor and remediate oversharing, broken permission inheritance, orphaned sites, inappropriate access, and unsupported customisations.\nEnsure SharePoint and Power Platform solutions comply with organisational security, data-protection, risk-management, and regulatory requirements.\nSolution engineering and automation\nDesign and build modern SharePoint Online sites aligned to information architecture and user and organization needs.\nCreate reusable templates, components, provisioning patterns, and automation to improve delivery speed and platform consistency.\nDevelop Power Apps for digital forms, user experiences, and business processes.\nBuild and maintain Power Automate flows.\nDevelop secure solutions that interact with SharePoint, Dataverse, SQL, Microsoft Graph, and approved enterprise services.\nManage project development and code with DevOps/ GIT.\nMigration delivery\nPlan and deliver SharePoint Online migrations from our various tenants.\nProvide post-migration support and contribute to the controlled decommissioning of legacy sites.\nOperational support and continuous improvement\nProvide ongoing operational support for SharePoint Online and Power Platform solutions.\nPerform root-cause analysis and implement preventative improvements for recurring or high-impact issues.\nSupport incident, problem, change, release, and request-management processes.\nMaintain technical designs, configuration records, support runbooks, release notes, user guides, and knowledge articles.\nDefine and document restoration, recovery, versioning, recycle-bin, and business-continuity procedures.\nDeliver training and enablement sessions for business users, site owners, content owners, and support teams.\nIdentify opportunities to reduce manual work through automation, standardisation, reusable components, and self-service services.\nMaintain awareness of developments across Microsoft 365, SharePoint, Microsoft Entra ID, and Power Platform.\nRequired Skills & Experience\n5 or more years of hands-on SharePoint administration and engineering experience, including ownership or support of enterprise-scale SharePoint Online environments.\nStrong experience administering SharePoint Online through the SharePoint Admin Center and Microsoft 365 Admin Center.\nStrong understanding of SharePoint Online architecture, governance, permissions, security, sharing, storage, search, and lifecycle management.\nExperience designing, building, and supporting modern SharePoint Online sites and solutions.\nExperience with hub sites, communication sites, team sites, Teams-connected sites, Microsoft 365 Groups, private and shared channel sites, and OneDrive.\nStrong knowledge of information architecture, including content types, site columns, metadata, managed terms, the Term Store, navigation, and search configuration.\nExperience managing tenant-level and site-level sharing controls, guest access, permission inheritance, and secure collaboration patterns.\nDemonstrated experience planning and delivering SharePoint or Microsoft 365 migrations.\nHands-on experience with Power Apps, including forms, validation, user experience design, security, and connectors.\nHands-on experience with Power Automate, including multi-step flows, approvals, expressions, exception handling, retry logic, notifications, and integrations.\nStrong PowerShell and PnP PowerShell skills for tenant administration and operational automation.\nExperience working with Microsoft Graph, SharePoint REST APIs, Dataverse, SQL, and enterprise data sources.\nExperience using Git and Azure DevOps, or equivalent tools, for source control, work management, testing, deployment, and release management.\nExperience with application lifecycle management, including versioning, testing, environment management, release processes, rollback planning, and operational support.\nExperience with SharePoint Framework, TypeScript, React, Node.js, and custom solution deployment is desirable.\nStrong understanding of permissions and security concepts (SharePoint groups, RBAC-style patterns, sharing controls).\nWorking knowledge of Microsoft Entra ID and its relationship with Microsoft Ecosystem.\nExperience applying Power Platform governance, environments, and DLP policies.\nExperience working in a regulated, risk-sensitive, or compliance-driven environment.\nAwareness of Microsoft 365 and Power Platform licensing dependencies, premium connectors, environment capacity, and platform limitations.\nStrong troubleshooting and root-cause analysis skills across SharePoint, OneDrive, Power Platform, permissions, search, integrations, and migrations.\nDemonstrated experience delivering platform changes and solutions end to end.\nStrong stakeholder management and customer-focused mindset.\nExcellent written and verbal communication skills.\nHigh attention to detail, particularly in relation to permissions, migrations, data handling, compliance, and production changes.\nAbility to manage multiple priorities, communicate risks and dependencies, and deliver work to agreed deadlines.\nStrong ownership, collaboration, problem-solving, and continuous improvement mindset.\nBachelor’s degree in Computer Science, Information Systems, or a related field, or equivalent practical experience.\nCurrent and relevant Microsoft certifications in Microsoft 365, SharePoint, Power Platform, Azure, Microsoft Entra ID, security, or compliance are desirable but not 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