SharePoint Administrator

ARHS; Warszawa; On-site; PLN 180,000 - 240,000; Full time

Job summary

ARHS Group in Warsaw is seeking an experienced SharePoint Administrator to administer, maintain and optimize SharePoint Server farms and SharePoint Online, including hybrid integrations with Microsoft 365 services.

The role requires deep expertise across SharePoint Server/Online, IIS-based deployments and migration tooling, with a focus on performance, security and reliability. Collaboration with development and infrastructure teams is essential.

Qualifications

• Minimum 5 years of IT professional experience.
• Minimum 3 years of experience in similar role.
• Microsoft 365 Certified: Administrator Expert or equivalent certification.
• Excellent practical knowledge of Microsoft SharePoint technologies.
• Experience deploying, administering and maintaining IIS-based solutions.
• Experience with SharePoint Server and SharePoint Online administration.

Responsibilities

• Administer, maintain and support SharePoint Server farms, SharePoint Online environments and related Microsoft collaboration platforms.
• Manage and maintain SharePoint infrastructure across production, testing and development environments.
• Provide 2nd line support for SharePoint-related incidents, service requests and operational issues.
• Investigate, troubleshoot and resolve SharePoint platform issues while ensuring timely updates through the ticketing system.
• Architect, plan and implement long-term improvements to SharePoint platforms and associated services.
• Design and support hybrid SharePoint architectures integrating on-premises environments with Microsoft 365 services.

Education

Microsoft 365 Certified: Administrator Expert

Advanced Solutions of Microsoft SharePoint 2013

Tools

SharePoint Server

SharePoint Online

IIS-based solutions

ShareGate Migration Tool

OpenID Connect (OIDC) / SAML 2.0

Job description

Arηs Group, Part of Accenture, specializes in the management of complex public sector IT projects, including systems integration, informatics and analytics, solution implementation and program management. Our team helps lead clients through digital and information systems design, bringing expertise in a variety of areas ranging from software development, data science and security management to machine learning, cloud, and mobile development.
Arηs Group was acquired by Accenture in July 2024.

Job Description

• Administer, maintain and support SharePoint Server farms, SharePoint Online environments and related Microsoft collaboration platforms
• Manage and maintain SharePoint infrastructure across production, testing and development environments
• Provide 2nd line support for SharePoint-related incidents, service requests and operational issues
• Investigate, troubleshoot and resolve SharePoint platform issues while ensuring timely updates through the ticketing system
• Administer and maintain complex SharePoint farm environments deployed across distributed infrastructures
• Architect, plan and implement long-term improvements to SharePoint platforms and associated services
• Optimize, tune and capacity plan SharePoint environments to ensure performance, availability and scalability
• Deploy, configure and support SharePoint solutions, applications and platform enhancements
• Execute SharePoint patch management, maintenance and upgrade activities
• Administer and maintain SharePoint Online, OneDrive, Microsoft Teams and related Microsoft 365 services
• Design and support hybrid SharePoint architectures integrating on-premises environments with Microsoft 365 services
• Deploy and manage SharePoint application packages (.sppkg) through the SharePoint App Catalog
• Manage migrations and modernization initiatives using ShareGate Migration Tool
• Administer Netcompany GetOrganized Enterprise Content Management (ECM) platform and related integrations
• Configure and manage authentication mechanisms, including OpenID Connect (OIDC) and SAML 2.0
• Manage SSL certificates and metadata exchange between Identity Providers (IdP) and Service Providers (SP)
• Collaborate with developers to align solution architecture, platform topology and configuration requirements
• Support deployment of solutions delivered by development teams across SharePoint environments
• Contribute to the technical design and specification of solutions based on SharePoint technologies
• Collaborate with infrastructure, security and application teams to harmonize solutions and operational processes
• Create, maintain and update technical documentation, operational procedures and platform standards
• Provide activity reporting, operational updates and technical recommendations to stakeholders
• Perform additional tasks as assigned by the supervisor

Qualifications

• Minimum 5 years of relevant IT professional experience
• Minimum 3 years of experience in similar role
• One of the following certifications (or an equivalent certification recognized internationally and accepted by the Contracting Authority):
• Microsoft 365 Certified: Administrator Expert
• Advanced Solutions of Microsoft SharePoint 2013
• or equivalent, internationally recognized certification
• Excellent practical knowledge of Microsoft SharePoint technologies
• Experience with SharePoint Server and SharePoint Online administration
• Practical experience with SharePoint-related technologies and ecosystem components
• Experience deploying, administering and maintaining IIS-based solutions
• Hands‑on experience administering complex SharePoint farms within enterprise and distributed environments
• Strong expertise in SharePoint performance optimization, tuning and capacity planning
• Strong knowledge of Microsoft 365 services, including:
• SharePoint Online
• OneDrive
• Microsoft Teams
• Exchange Online
• Experience designing and supporting hybrid SharePoint solutions integrating on-premises and cloud environments
• Practical experience with SharePoint patch management and lifecycle maintenance
• Strong troubleshooting skills for large-scale distributed systems and enterprise platform environments
• Basic knowledge of other Microsoft infrastructure technologies and platforms
• Excellent analytical and problem‑solving skills
• Strong customer‑focused and service‑oriented mindset
• Proactive attitude with the ability to work independently and within a team
• Ability to adapt to rapidly evolving technologies and cloud services
• Excellent verbal and written communication skills
• Ability to communicate effectively with both technical and non-technical audiences

Additional Information

• Security clearance required (EU Restricted) from 1st day of collaboration