Senior Infrastructure Officer

Tototheo Global is a leading provider of connectivity and technology solutions, enabling maritime, enterprise, and government customers worldwide. Through the integration of satellite communications, digital technologies, and intelligent infrastructure, the company enables reliable, secure, and future-ready operations, helping organisations navigate an increasingly connected world.

Our diverse portfolio of solutions includes:

• Integrated Services and Bridge Managed Solutions
• Cybersecurity Solutions
• Connectivity Solutions
• Digital Solutions

Job Purpose

The Senior Infrastructure Officer is responsible for maintaining, upgrading, securing, and supporting the company’s ICT infrastructure across on-premises, hybrid, and cloud environments.

The role ensures that infrastructure systems, cloud platforms, network services, business applications, security solutions, endpoints, and other core IT services operate securely, efficiently, and with minimal downtime.

The Senior Infrastructure Officer provides senior-level technical support to internal users, third parties, and clients, takes ownership of complex infrastructure issues, and contributes to the design and delivery of infrastructure projects. The role is expected to proactively identify risks, improve resilience, automate operational processes, and drive continuous improvement across the organization’s IT environment.

The successful candidate will work closely with the Head of IT Infrastructure, other members of the IT team, internal departments, external service providers, and technology partners to ensure reliable and secure delivery of IT services.

This role requires presence at our Limassol, Cyprus office, or at our Piraeus, Greece office. Remote-only candidates will not be considered.

Main Duties and Responsibilities

• Infrastructure Operations
• Microsoft 365 & Identity
• Windows & Linux Infrastructure
• Network Infrastructure
• Cloud Infrastructure
• Endpoint Management
• Backup, Disaster Recovery & Business Continuity
• Cybersecurity & Compliance
• Incident & Problem Management
• Infrastructure Projects & Continuous Improvement
• Documentation & Knowledge Sharing

Qualifications & Skills

Education & Experience

• Bachelor’s degree in Computer Science, Information Technology, Computer Engineering, or a related discipline, or equivalent professional experience.
• Minimum of 7 years of relevant professional experience in systems, network, cloud, or infrastructure administration.
• Demonstrable experience supporting business-critical IT infrastructure within a professional environment.
• Experience supporting infrastructure across multiple locations and cloud environments would be considered an advantage.
• Experience taking ownership of complex technical issues and infrastructure projects.
• Must be fluent in English, both spoken and written.
• Relevant Microsoft, Fortinet, AWS, Linux, networking, or cybersecurity certifications would be considered an advantage.

Technical Expertise

The successful candidate should have strong experience across a broad range of infrastructure technologies, including:

• Strong knowledge of Windows Server infrastructure, including Active Directory, DNS, DHCP, Group Policy, File Services, and related technologies.
• Strong knowledge of Microsoft 365 and Microsoft Entra ID, including Exchange Online, SharePoint Online, Microsoft Teams, identity management, MFA, Conditional Access, and security controls.
• Strong understanding of networking concepts, including TCP/IP, DNS, DHCP, VLANs, routing, switching, VPNs, firewalls, and network security.
• Experience with enterprise firewall and networking technologies. Experience with Fortinet technologies such as FortiGate, FortiSwitch, and FortiAnalyzer would be considered a strong advantage.
• Experience with cloud IaaS/PaaS environments such as AWS, Microsoft Azure, and DigitalOcean.
• Good working knowledge of Linux environments, including Ubuntu, Debian, CentOS, or equivalent distributions.
• Experience with virtualization technologies such as VMware, KVM, or equivalent platforms.
• Experience with scripting and automation technologies such as PowerShell, Python, Ansible, or equivalent.
• Experience with endpoint and device-management platforms such as Microsoft Intune, JAMF, or other MDM solutions.
• Experience with Remote Monitoring and Management (RMM) platforms such as NinjaOne or equivalent.
• Experience with infrastructure monitoring and alerting platforms such as Zabbix or equivalent.
• Experience with backup, restoration, and disaster-recovery technologies.
• Experience with IT Service Management and Service Desk platforms such as Freshservice, Jira Service Management, or equivalent.
• Familiarity with PBX and unified communications platforms such as 3CX and Asterisk.
• Familiarity with open-source platforms such as ownCloud and FreePBX would be considered an advantage.
• Good understanding of cybersecurity principles, including least privilege, identity protection, endpoint security, network segmentation, vulnerability management, secure remote access, encryption, and infrastructure hardening.
• Awareness of information-security standards such as ISO 27001.
• Understanding of IT service-management practices and frameworks such as ITIL.

Professional Skills

• Excellent communication and interpersonal skills, with the ability to communicate effectively with technical and non-technical stakeholders.
• Strong customer and service-oriented approach.
• Excellent troubleshooting and problem-solving abilities with logical and structured thinking.
• Strong sense of ownership and accountability, with the ability to take technical issues through to resolution.
• Proactive approach to identifying infrastructure risks, weaknesses, and opportunities for improvement.
• Strong organizational and time-management skills, with the ability to manage multiple priorities and projects.
• Ability to work independently while collaborating effectively as part of a wider IT team.
• Ability to remain effective during critical incidents and time-sensitive situations.
• Strong technical documentation and knowledge-sharing skills.
• Ability to work effectively with external vendors and technology partners.
• Team-oriented, dependable, and committed to professional ethics, confidentiality, and integrity.
• Willingness to continuously develop technical knowledge and remain current with evolving infrastructure, cloud, and cybersecurity technologies.

Additional Role Requirements

• Ability to participate in planned maintenance and infrastructure upgrades outside normal business hours when required.
• Availability to assist with critical infrastructure incidents outside normal working hours when necessary.
• Ability to travel between company offices or other business locations when required.
• Commitment to maintaining the confidentiality, integrity, and availability of company and customer information.
• Commitment to following company IT, information-security, compliance, and change-management policies and procedures

Benefits:

And here are just some of the benefits you receive when you join Tototheo Global:

• Work in an international, dynamic, and fun environment, at a growing company
• Attractive remuneration package
• Private Medical Health Insurance
• Continuing education and training
• 13th salary (for Cyprus)
• Half day leave on your birthday
• Wellness Support – Unlimited access to our dedicated wellness platform for mental health resources, coaching and self-care tools

Looking for a role that offers both challenge and purpose? Join a global industry leader where your work truly makes an impact.

At Tototheo Global, we take pride in being an equal opportunity employer, building an environment where everyone feels included, respected and supported to reach their full potential.

Our culture is shaped by our core values - Grow, Excellence, Innovation and Respect - and reflected in how we collaborate and deliver for our clients worldwide.

We’re also a certified Great Place to Work, recognized for our commitment to continuous learning, teamwork and the wellbeing of our people.