Miratech helps visionaries change the world. We are a general IT services and consulting company that brings together enterprise and start-up innovation. Today, we support digital transformation for some of the world's largest enterprises. By partnering with both large and small players, we stay at the leading edge of technology, remain nimble even as a global leader, and create technology that helps our clients further enhance their business. We are a values-driven organization and our culture of Relentless Performance has enabled over 99% of Miratech's engagements to succeed by meeting or exceeding our scope, schedule, and/or budget objectives since our inception in 1989. Miratech has coverage across 5 continents and operates in over 25 countries around the world. Miratech retains nearly 1000 full-time professionals, and our annual growth rate exceeds 25%.

Job Description We are looking for an experienced NOC Infrastructure Administrator to join our team remotely. The NOC Infrastructure Administrator is responsible for monitoring, administration, and operational support of Linux, Windows, and cloud-based infrastructure in a 24/7 production environment. This role focuses on maintaining system availability, resolving technical issues, supporting operational processes, and ensuring the stability and performance of critical business systems. As part of a round-the-clock operations team, the successful candidate will participate in a rotating shift schedule and play a key role in supporting mission-critical infrastructure and services. The ideal candidate has strong system administration experience, solid troubleshooting skills, and hands‑on knowledge of cloud platforms, virtualization technologies,



networking fundamentals, and infrastructure monitoring tools. Responsibilities

Provide operational support for a 24/7 NOC environment supporting Linux and Windows-based systems.

Operate, maintain, and manage Linux and Windows systems supporting production operations.

Perform data backup and recovery activities.

Monitor, manage, and maintain Linux and Windows servers and applications.

Create and maintain environment-specific operating procedures and documentation.

Create, manage, and maintain user accounts and group memberships in Active Directory.

Perform daily system monitoring, ensuring system integrity, availability, and successful completion of scheduled jobs and backups.

Define, prioritize, troubleshoot, and resolve support requests in an organized and efficient manner.

Administer and monitor cloud-based infrastructure and managed services.

Develop, maintain, and utilize automation scripts using Bash, PowerShell, Python, or similar technologies.

Assist with patch management in Linux and Windows environments.

Create and maintain operational, configuration, and knowledge base documentation.

Lead shift operations when required.

Qualifications

4+ years of experience in Linux and Windows system administration.

Experience supporting

production infrastructure





in a 24/7 operational environment.

Strong knowledge of

Linux

and

Windows server

administration.

Experience with

system and application monitoring

in production environments

Hands‑on knowledge of networking concepts, including

DNS, TCP/IP, DHCP, IP networking , and

network troubleshootin g.

Experience administering

Microsoft infrastructure technologies , including Active Directory, DNS, DHCP, Group Policy, and Windows Security.

Experience with cloud platforms and virtualization technologies such as

AWS, Azure, VMware, and Hyper-V .

Experience developing automation scripts using

Bash, PowerShell, Python , or similar scripting languages.

Working knowledge of

SQL

queries and database troubleshooting.

Experience with

web server administration

and configuration.

Experience working with enterprise monitoring tools such as

Nagios, Datadog, Jira, Salesforce , or similar platforms.

Experience managing incidents, documenting resolutions, and following operational procedures.

Strong analytical and problem‑solving skills.

Strong verbal and written communication skills. Positive and collaborative attitude.

Self‑motivated with a strong sense of ownership and accountability.

Ability to identify inefficiencies and recommend improvements to systems and processes.

Ability to perform effectively in a fast‑paced and rapidly changing environment.

Strong organizational, prioritization, and decision‑making skills.

Ability to work effectively both independently and within a team environment.

Flexibility to work day, eve

📌 NOC Infrastructure Administrator (Madrid)
🏢 Miratech
📍 Madrid