M365 Collaboration Engineer — Hybrid, Automation & Migrations

ISS Tech Team; Warszawa; Hybrid; PLN 194,000 - 280,000; Full time

Job summary

ISS Tech Team in Warsaw, Poland, Hybrid work regime, seeks 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.

In this role you will own operations, lead projects, build automation, document runbooks, and work with security/compliance stakeholders to maintain audit readiness and strong platform resilience.

Qualifications

• Several years of hands-on experience administering and engineering Microsoft 365 in a complex enterprise environment.

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 operational workflows.
• Create and maintain architecture documentation, runbooks, standard operating procedures, 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 Microsoft 365 migrations for acquired companies, including discovery, dependency mapping, readiness assessment, cutover design, migration, and post-migration stabilisation.
• Assess identity, email, collaboration data, endpoint management, licensing, and compliance dependencies and constraints.
• 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

PowerShell

Microsoft Graph API

Automation

Security governance

Documentation

Migrations

English

Tools

Copilot

Copilot Agents

SPFx/React

.NET/C#

Terraform

Job description

ISS Tech Team in Warsaw, Poland, Hybrid work regime, seeks 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.

In this role you will own operations, lead projects, build automation, document runbooks, and work with security/compliance stakeholders to maintain audit readiness and strong platform resilience.