System Administrator

39 - 44 USDNet per hour - B2B
Admin

System Administrator

Admin
plac Bankowy 2, Warszawa

PTT Consulting Sp. z o. o.

Freelance
B2B
Senior
Remote
39 - 44 USDNet per hour - B2B

Job description

Senior System Administrator

We are looking for an experienced Senior System Administrator to join our team, responsible for maintaining, developing, and optimizing IT environments across both on-premise and cloud infrastructures. We are seeking a professional who combines strong technical expertise with the ability to lead initiatives and support team members.


Responsibilities

  • Administration and development of Windows Server environments (2019–2025).

  • Management and maintenance of Microsoft 365, Azure, and Intune services.

  • Administration of Active Directory / LDAP and Group Policy (GPO) management

  • Automation of administrative processes using PowerShell (and other scripting languages)

  • Maintenance and development of virtual environments (VMware / Hyper-V)

  • Troubleshooting complex system issues in hybrid environments (on-prem + cloud)

  • Participation in global deployments and rollouts of new technologies

  • Creating standards, procedures, and recommending system improvements

  • Supporting hardware and software selection processes

  • Collaboration with technical teams and mentoring junior team members

  • Participation in IT projects and technical coordination


Requirements

  • Advanced knowledge of Windows Server (2019–2025)

  • Strong experience with Microsoft ecosystem (Microsoft 365, Azure, Intune)

  • Experience with Active Directory / LDAP administration

  • Advanced knowledge of Group Policy design and configuration

  • Experience with automation using PowerShell

  • Knowledge of virtualization technologies (VMware or Hyper-V)

  • Experience with Microsoft Application Servers

  • Solid understanding of networking, operating systems, and troubleshooting

  • Microsoft certification (e.g., MCSE) or equivalent is a strong advantage

  • English skills (B2 level a minimum)


Nice to have

  • Knowledge of Bash or Python

  • Experience in AI / Machine Learning / Data Engineering

  • Experience in global system deployments

  • Knowledge of Microsoft Modern Management (e.g., Endpoint Manager, Autopilot)


Client:

A global leader with a sharp focus on lottery solutions. A confident step forward building on a long history of delivering safe and secure technology, demonstrating strong commitment to customers as a dedicated lottery service provider.

Leveraging collective insight, experience, and expertise to create reliable and engaging solutions that help lottery clients achieve objectives, meet player needs, and deliver meaningful benefits to communities.

Tech stack

    English

    B2

    Windows Server (2019–2025)

    advanced

    Microsoft 365 / Azure / Intune

    advanced

    Active Directory (AD) / LDAP

    advanced

    Group Policy (GPO)

    advanced

    PowerShell (scripting & automation)

    advanced

    Virtualization (VMware / Hyper-V)

    advanced

    Microsoft Application Servers (e.g. IIS)

    advanced

    Bash / Python

    nice to have

    AI / Machine Learning / Data Engineering

    nice to have

Office location

System Administrator

39 - 44 USDNet per hour - B2B
Summary of the offer

System Administrator

plac Bankowy 2, Warszawa
PTT Consulting Sp. z o. o.
39 - 44 USDNet per hour - B2B
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