Microsoft 365 Platform Engineer — Hybrid

ISS A/S; Warszawa; Hybrid; PLN 180,000 - 260,000; Full time

Job summary

ISS A/S Warsaw is seeking a Digital Collaboration Engineer to ensure continuity, quality, security, and scalability of Microsoft 365 services. You will blend platform engineering with project delivery, automation, governance, and migrations across acquisitions.

The role sits in the ISS Tech Team, collaborating with security, compliance, service desk, and vendors to minimize risk and deliver reliable engineering outcomes. Hybrid work in Warsaw.

Qualifications

• Several years of hands-on experience administering and engineering Microsoft 365 in a complex enterprise environment.
• Strong knowledge of core Microsoft 365 workloads (Exchange Online, Teams, SharePoint Online, OneDrive, Entra ID) and related security/compliance.
• Proven experience troubleshooting complex Microsoft 365 incidents and delivering configuration changes through controlled testing, deployment, hypercare and handover.
• Strong scripting and automation skills using PowerShell and Microsoft Graph API, with the ability to develop and maintain automation solutions.
• Ability to produce clear technical documentation, runbooks, SOPs, and migration plans.
• Hands-on experience with Microsoft 365 Copilot, including configuration, administration, governance, and troubleshooting.
• Practical experience with Copilot Agents, including configuration, deployment, permissions, and integration with Microsoft 365 services.
• Experience managing Microsoft 365 user licensing, including license assignment, removal, license optimization, and troubleshooting licensing issues.
• English proficiency, both written and spoken.

Responsibilities

• Own day-to-day Microsoft 365 service operations and ensure platform stability, availability, and performance.
• Resolve complex Microsoft 365 issues escalated by the service desk or local IT teams.
• Administer core Microsoft 365 workloads and implement configuration changes aligned with security, compliance, and governance standards.
• Lead assigned Microsoft 365 projects through planning, build, testing, deployment, hypercare and operational handover.
• Build and maintain PowerShell-, Microsoft Graph-, and API-based automation for provisioning, policy enforcement, reporting, and workflows.
• Create and maintain architecture documentation, runbooks, SOPs, migration guides, and support knowledge articles.
• Monitor service health, incident trends, and key platform metrics, and implement preventive improvements.
• Partner with security and compliance stakeholders to implement controls, support audit readiness, and deliver remediation actions.
• Plan and execute tenant-to-tenant migratons for acquired companies, including discovery, readiness assessment, cutover design, migration, and post-migration stabilization.
• Assess identity, email, collaboration data, endpoint management, licensing, and compliance dependencies.
• Coordinate migration workstreams with internal teams, vendors, and acquired entities, managing technical dependencies and business-continuity risks.
• Contribute to the Microsoft 365 roadmap by translating business requirements into actionable engineering deliverables.

Skills

Microsoft 365 administration

PowerShell scripting

Microsoft Graph API

Automation

Documentation

Copilot experience

Security governance

Migration planning

English proficiency

Tools

SPFx/React

.NET/C#

SQL

Azure Functions

REST APIs

Terraform

Job description

ISS A/S Warsaw is seeking a Digital Collaboration Engineer to ensure continuity, quality, security, and scalability of Microsoft 365 services. You will blend platform engineering with project delivery, automation, governance, and migrations across acquisitions.

The role sits in the ISS Tech Team, collaborating with security, compliance, service desk, and vendors to minimize risk and deliver reliable engineering outcomes. Hybrid work in Warsaw.