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SquareDev? πΏοΈ
We use state-of-the-art technology to build solutions for our customers and our partners' customers. We make sure we stay best-in-class by participating inΒ research projects across Europe, collaborating withΒ top universities and enterprisesΒ onΒ AI, Data, and Cloud.
About QnR Group
SquareDev is a member of the QnR Group, a leading technology organization specializing in end-to-end custom software solutions, Artificial Intelligence, Cybersecurity, SAP S/4HANA, SAP Business One, ServiceNow, and FinTech solutions.
As part of QnR Group's ongoing expansion β both in Greece and internationally β we are continuously hiring across a wide range of tech roles. Successful candidates may be hired by QnR Group, or another company within the Group, depending on the role and project.
Role overview
We are looking for a Network Specialist Cloud to join one of our public sector clients based in Warsaw. You'll be responsible for keeping a large enterprise network running smoothly, from physical cabling and device installation to cloud networking and automation.
Requirements
The ideal candidate will be responsible for:
- Administering, monitoring and troubleshooting IP networks and structural cabling.
- Performing physical and logical network changes, installing/removing devices, cabling, configuration updates.
- Providing 2nd line support to system and network users.
- Creating and maintaining technical documentation and operating procedures.
- Advising on network improvements, upgrades, and infrastructure changes.
To excel in this role, you'll need:
- At least 5+ years of IT experience and 5+ years in a network specialist role.
- Education at Level 4 or above.
- Strong understanding of TCP/IP, IP routing and Ethernet switching protocols.
- Good knowledge of network services (DNS, DHCP, NTP) and endpoint OS network configuration (Windows, Linux, iOS).
- Solid grasp of wired/wireless technologies (Wi-Fi, 802.1x/EAP) and application-layer security (HTTPS/TLS, PKI, X.509).
- Hands-on experience with enterprise networking hardware (Cisco routers/switches, wireless controllers, firewalls).
- Experience with stateful and stateless traffic filtering in large enterprise environments.
- Strong troubleshooting skills, attention to detail, and ability to work under pressure with minimal supervision.
- Physical fitness to rack-mount and cable network appliances as needed.
- Valid category B driving licence and willingness to travel within Europe occasionally (up to 15 trips/year).
- Required certification: CCNA or equivalent from another network vendor.
- English B2 level certification or higher.
Nice to have:
- Very good knowledge of Azure network services and good knowledge of AWS networking.
- Hands-on experience with network automation and DevOps tools (Terraform, Ansible, Git, or similar).
- Working knowledge of DevOps concepts: CI/CD, pipelines, infrastructure-as-code.
- Scripting experience in Python, PowerShell, or shell.
- Familiarity with DevOps data formats: JSON, YAML, XML.
Other open roles at SquareDev(6)
We build secure, autonomous AI agents to automate manual, repetitive work. Over β¬2 million invested in AI research.
Key team members

Anastasios Stellas

Anastasis Papanagnou

Megaklis Vasilakis

Alex Karvounis
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