IT Infrastructure Administrator

Posted Yesterday
Be an Early Applicant
Athens, GRC
In-Office
Mid level
Artificial Intelligence • Conversational AI
The Role
The IT Infrastructure Administrator manages the design, deployment, and maintenance of IT infrastructure, ensuring reliability, security, and performance of network, server, and cloud systems.
Summary Generated by Built In

Role Purpose

The IT Infrastructure Administrator owns the design, deployment, and ongoing operation of Omilia's core IT infrastructure — spanning on-premises, cloud, and hybrid environments. The role ensures the reliability, security, and scalability of network, server, and cloud systems that underpin Omilia's internal operations and platform delivery, acting as the primary technical owner for infrastructure health and capacity.

Accountabilities

  • Owns the availability, performance, and security posture of Omilia's IT infrastructure across network, server, and cloud layers.
  • Accountable for infrastructure lifecycle management: capacity planning, procurement, deployment, maintenance, and decommissioning.
  • Responsible for backup integrity, disaster recovery readiness, and business continuity across all managed systems.
  • Ensures infrastructure compliance with Omilia's security policies and relevant certifications (ISO 27001, SOC 2, PCI-DSS).
  • Contributes to infrastructure strategy and roadmap, identifying opportunities to improve resilience, efficiency, and cost.

Key Responsibilities

  • Administer and maintain network infrastructure: LAN/WAN, firewalls, VPN, DNS, DHCP, and switching/routing equipment.
  • Manage server infrastructure (physical and virtual) including provisioning, patching, performance tuning, and decommissioning.
  • Administer cloud infrastructure across GCP, AWS, or Azure: compute, storage, networking, and IAM configurations.
  • Manage virtualisation platforms (VMware, Hyper-V) and containerisation environments where applicable.
  • Implement and maintain backup and disaster recovery solutions; conduct periodic DR tests and document outcomes.
  • Monitor infrastructure health using observability tools (e.g. Zabbix, Datadog, Grafana); respond to and resolve infrastructure incidents.
  • Enforce infrastructure security controls: patch management, vulnerability remediation, access hardening, and certificate management.
  • Manage on-premises and cloud storage solutions, ensuring data integrity, retention compliance, and performance.
  • Maintain infrastructure documentation: network diagrams, runbooks, configuration baselines, and change records.
  • Support IT security audits and contribute infrastructure evidence to compliance programmes (ISO 27001, SOC 2, PCI-DSS).

Requirements

Knowledge, Skills & Experience

Required:

  • 3–5 years of IT infrastructure administration or systems engineering experience.
  • Hands-on experience with network administration: firewalls (e.g. Fortinet, Palo Alto, Cisco), VPN, DNS/DHCP, VLANs.
  • Solid experience with server administration on Linux and/or Windows Server environments.
  • Experience with at least one major cloud platform (GCP, AWS, or Azure) at an administration level.
  • Experience with virtualisation technologies (VMware vSphere, Hyper-V, or equivalent).
  • Familiarity with backup and DR tools and methodologies; experience designing or testing recovery procedures.
  • Knowledge of infrastructure security principles: hardening, patch management, access controls, certificate lifecycle.
  • Experience with infrastructure monitoring and alerting tools.
  • Methodical approach to documentation, change management, and incident response.
  • Strong analytical and problem-solving skills; able to diagnose complex infrastructure issues under pressure.
  • Bachelor's degree in Information Technology, Computer Science, Network Engineering, or a related field.

Nice to have:

  • Relevant certifications: CCNA, CompTIA Network+, AWS/GCP/Azure Associate, VMware VCP, or equivalent.
  • Experience with infrastructure-as-code tools (Terraform, Ansible, or similar).
  • Exposure to containerisation and orchestration (Docker, Kubernetes).
  • Experience in a SaaS, cloud-native, or CCaaS technology environment.

Omilia Note

- Contribute actively and effectively as an integrated team member.

- Act as an Omilia ambassador in all interactions.


Benefits
  • Fixed compensation;
  • Long-term employment with the working days vacation;
  • Development in professional growth (courses, training, etc);
  • Being part of successful cutting-edge technology products that are making a global impact in the service industry;
  • Proficient and fun-to-work-with colleagues;
  • Apple gear

If you're a rare builder who speaks both code and pipeline, stays ahead of AI trends, and thrives as a cross-functional collaborator, we want to hear from you.

Apply Now to join Omilia and help engineer the future of conversational AI.

Omilia is proud to be an equal opportunity employer and is dedicated to fostering a diverse and inclusive workplace. We believe that embracing diversity in all its forms enriches our workplace and drives our collective success. We are committed to creating an environment where everyone feels welcomed, valued, and empowered to contribute their unique perspectives without regard to factors such as race, color, religion, gender, gender identity or expression, sexual orientation, national origin, heredity, disability, age, or veteran status, all eligible candidates will be given consideration for employment.

Skills Required

  • 3-5 years of IT infrastructure administration or systems engineering experience.
  • Hands-on experience with network administration: firewalls, VPN, DNS/DHCP, VLANs.
  • Solid experience with server administration on Linux and/or Windows Server environments.
  • Experience with at least one major cloud platform administration level.
  • Experience with virtualisation technologies VMware vSphere, Hyper-V, or equivalent.
  • Familiarity with backup and DR tools and methodologies.
  • Knowledge of infrastructure security principles.
  • Experience with infrastructure monitoring and alerting tools.
  • Strong analytical and problem-solving skills.
  • Bachelor's degree in Information Technology or related field.
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The Company
354 Employees
Year Founded: 2002

What We Do

At Omilia we are engaged to provide the most human-like human-to-machine communication experiences and technologies in order to help large enterprises improve the customer care experience. Starting out of a small garage, Omilia is now serving 1 billion conversations, in 30 languages, across 17 countries. With one of the fastest growing NLU solutions in the market, Omilia has been recognized as a Leader in the 2022 Gartner® Magic Quadrant™ for Enterprise Conversational AI Platforms, as well as in the IDC Marketscape for Worldwide Conversational AI Software Platforms for Customer Service 2021. Our technology allows the enterprise to take advantage of Open-Question customer care with end-to-end Self-Service to greatly improve customer experience and significantly decrease operational costs. In 2016 Omilia expanded to USA and Canada, counting 33 full production deployments worldwide and case studies with proven KPIs and ROIs across various industries.

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