Jobs Companies Threenitas S.A. Systems & Network Admin Trainee (IT)

About this Systems & Network Admin Trainee (IT) role at Threenitas S.A.

Threenitas S.A. · Onsite · Dafni, Dafni, Greece

We are looking for a Systems & Network Administrator Trainee to join our IT team and support the daily operation, maintenance, and continuous improvement of our network infrastructure and internal systems.

This internship offers an excellent opportunity to gain hands-on experience in systems administration, networking, and IT support while working alongside experienced professionals. Throughout the internship, you will develop both your technical expertise and professional skills by participating in real-world IT operations and contributing to the smooth functioning of our technology environment.

Ultimately, you will build a strong foundation in IT infrastructure, troubleshooting, and system administration while learning industry best practices and collaborating with a highly skilled technical team.

We know that you will be a good fit for our team, if...

  • You have a genuine interest in Systems Administration, Networking, and IT Infrastructure.
  • You enjoy troubleshooting technical issues and finding practical solutions.
  • You communicate clearly and effectively with both technical and non-technical users.
  • You are eager to learn, accept feedback, and continuously improve your skills.
  • You are organized, detail-oriented, and able to follow established procedures.
  • You enjoy working collaboratively as part of a team.
  • You demonstrate responsibility, professionalism, and a positive attitude.
  • You are adaptable and enjoy working in a dynamic technology environment.

What we expect from you...

  • Assist in the installation, configuration, and maintenance of network and computer systems.
  • Support the IT team in monitoring the organization's infrastructure and systems.
  • Troubleshoot first-level technical issues and provide user support.
  • Assist in software deployment, updates, and security patch management.
  • Maintain accurate records through the company's ticketing system and technical documentation.
  • Support user account administration, including account creation, password resets, and license management.
  • Participate in routine maintenance activities and infrastructure improvement initiatives.
  • Follow IT security policies and best practices while handling company systems and information.

Main Responsibilities

  • Assist with the installation and configuration of PCs, networking equipment, routers, switches, and VPN connections.
  • Support system monitoring and basic server administration under the guidance of senior IT administrators.
  • Troubleshoot hardware, software, and network-related issues.
  • Monitor and assist with software updates, operating system maintenance, and security patching.
  • Record, categorize, and track incidents through the ticketing system.
  • Create and maintain basic technical documentation.
  • Assist with Active Directory user administration, account provisioning, password resets, and access management.
  • Support inventory management of IT equipment and assets.
  • Collaborate with the IT team to ensure reliable and secure IT operations.

Requirements

We would like to talk to you, if you have...

  • Currently studying or recently graduated in Computer Science, Information Technology, Network Engineering, or a related field.
  • Basic understanding of computer networks, operating systems, and hardware.
  • Familiarity with Windows operating systems and Microsoft Office.
  • Basic knowledge of networking concepts (TCP/IP, DNS, DHCP, VPN).
  • Strong analytical and problem-solving skills.
  • Excellent communication skills in both Greek and English.
  • A strong willingness to learn and develop professionally.

We would greatly appreciate if you also have...

  • Basic knowledge of Microsoft Active Directory and Microsoft 365 administration.
  • Familiarity with virtualization technologies.
  • Exposure to cloud platforms (Microsoft Azure or AWS).
  • Knowledge of scripting (PowerShell, Bash, or Python).
  • Previous academic or personal projects related to networking or system administration.
  • Understanding of cybersecurity principles and IT best practices.
  • Currently studying or recently graduated in Computer Science, Information Technology, Network Engineering, or a related field.
  • Basic understanding of computer networks, operating systems, and hardware.
  • Familiarity with Windows operating systems and Microsoft Office.
  • Basic knowledge of networking concepts (TCP/IP, DNS, DHCP, VPN).
  • Strong analytical and problem-solving skills.
  • Excellent communication skills in both Greek and English.
  • A strong willingness to learn and develop professionally.

Benefits

  • Hands-on experience in a modern IT environment.
  • Mentoring and continuous guidance from experienced IT professionals.
  • Exposure to enterprise infrastructure, networking, and security technologies.
  • Opportunity to participate in real business projects.
  • Hybrid work model (where applicable).
  • Friendly and collaborative working environment.
  • Potential opportunity for future employment upon successful completion of the internship.
Ready to apply to Threenitas S.A.?
Apply to Threenitas S.A.

About Threenitas S.A.

Threenitas S.A. is a software engineering company based in Athens and Heraklion (Crete), Greece.

At Threenitas we work directly with our clients to plan, design, and implement digital products & solutions. Our strength lies in our ability to apply what we know and our eagerness to learn what we haven’t yet practiced. We love technology, gadgets and services, and we rejoice in putting them to the best of use for our client’s projects. We build on top of our deep knowledge of digital media and our solid engineering background, to realize our clients' vision and meet their practical goals.

We move across the digital divide boundary. Our technical expertise supplements our creative thinking, and acts as an amplifying factor, that supports successful delivery of our client's message. Our goal is to build projects that provide the ultimate digital experience for our audiences.

The Environment

All members of our team are professionals passionate with technology, who love exploring new products and services in order to stay on the cutting edge.

Any new team member should be interested in technology and demonstrate a keen interest in applying such technology as a means for improving people’s everyday lives. They will be encouraged to expand on ideas, play around with new technologies, develop themselves as professionals and develop fun applications that will be used by many.

See all jobs at Threenitas S.A. →

Similar jobs

Sign up for suggestions tailored to the jobs you open and the searches you save.

More jobs at Threenitas S.A.

See all jobs at Threenitas S.A. →

Apply now
🤖

Whoa — hold up

JobsRadar was built for real people having a rough time in their job search — not for automated requests. You're clicking way too fast and you're now temporarily blocked.

Come back later. If you're genuinely job hunting, we've got your back — just act like a human.

Catch your next role the second it’s posted.

Create a free account and we’ll watch the boards for you — the instant a job matches your search, it lands in your inbox or Telegram. No digging, no refreshing.

Create free account

Free forever · takes 30 seconds · already have one?

Get an edge on your job hunt.

Join our Telegram channel for the stuff that helps you land the role — salary benchmarks, the weekly market pulse, and new-feature drops. No spam, just signal.

Join the channel — it's free