We are seeking a highly skilled and motivated Senior Microsoft & Infrastructure Solutions Support Engineer to join our Infrastructure Services team in Nicosia.
The successful candidate will be responsible for designing, implementing, supporting, and optimising Microsoft-based infrastructure solutions for enterprise customers. This role requires strong technical expertise across Microsoft technologies, cloud services, virtualisation, networking, cybersecurity, and hybrid environments. As a senior member of the team, you will act as a technical escalation point, lead complex projects, and contribute to the continuous improvement of our managed and professional services offerings.
Main Responsibilities
• Be a senior member of the Infrastructure Services Team, working under the supervision of the Team Leader and acting as the technical escalation point within the team.
• Provide 2nd and 3rd level technical support for Microsoft infrastructure environments, leading the resolution of complex customer issues.
• Design, implement, migrate, and support solutions based on:
◦ Microsoft Azure Infrastructure Services
◦ Microsoft 365 & Exchange Online / On-premises
◦ Microsoft Entra ID (Azure AD) & Active Directory Domain Services
◦ Windows Server 2016/2019/2022
◦ Microsoft Teams & SharePoint Online
◦ Microsoft Intune & Endpoint Management
◦ Microsoft Defender Security Suite
• Lead infrastructure modernisation and cloud transformation projects.
• Plan and execute migrations to Microsoft 365 and Azure environments.
• Implement and support hybrid identity and authentication solutions (MFA, Conditional Access).
• Deploy and manage security solutions aligned with Microsoft security best practices.
• Troubleshoot complex infrastructure, networking, security, and cloud-related issues.
• Perform health assessments, system audits, and proactive maintenance activities.
• Create and maintain technical documentation, operational procedures, and knowledge base articles.
• Participate in customer meetings, technical workshops, and solution presentations.
• Provide technical leadership and mentoring within the team.
• Participate in on-call and escalation support activities when required.
• Detect, evaluate, and remediate infrastructure weaknesses and application deployment challenges.
Required Technical Skills
Microsoft Technologies
• Microsoft Azure Infrastructure Services
• Microsoft 365 Administration
• Microsoft Entra ID & Azure AD
• Active Directory Domain Services & Group Policy Management
• Exchange Online & Exchange On-premises
• Microsoft Teams Administration
• SharePoint Online
• Microsoft Intune & Endpoint Management
• Microsoft Defender Security Suite
• PowerShell scripting
Infrastructure & Networking
• Virtualisation technologies: VMware vSphere and/or Microsoft Hyper-V
• Storage technologies and backup solutions
• TCP/IP, DNS, DHCP, VPN, Routing and Switching
• Firewalls and network security technologies
• High Availability and Disaster Recovery solutions
Security
• Identity and Access Management (IAM)
• Multi-Factor Authentication (MFA) & Conditional Access Policies
• Microsoft Defender security solutions
• Security best practices and compliance frameworks
Qualifications & Experience
• Bachelor’s degree in computer science, Information Technology, Engineering, or a related field.
• Minimum 5 years of experience in Microsoft infrastructure and cloud support.
• Proven experience delivering enterprise Microsoft solutions in managed services or enterprise IT environments.
• Strong troubleshooting and analytical skills.
• Ability to manage multiple priorities and work independently.
• Excellent written and verbal communication skills in both Greek and English.
Preferred Certifications
One or more of the following certifications will be considered a significant advantage:
• Microsoft Certified: Azure Administrator Associate (AZ-104)
• Microsoft Certified: Azure Solutions Architect Expert (AZ-305)
• Microsoft Certified: Identity and Access Administrator Associate (SC-300)
• Microsoft 365 Certified: Enterprise Administrator Expert (MS-102)
• Microsoft Certified: Cybersecurity Architect Expert (SC-100)
• VMware Certified Professional (VCP)
• ITIL Foundation
Personal Attributes
• Customer-focused and service-oriented mindset
• Strong problem-solving and decision-making abilities
• Excellent communication and interpersonal skills
• Ability to lead technical discussions with customers and stakeholders
• Self-motivated with a passion for learning and technology
• Strong organisational and documentation skills
What We Offer
• Competitive remuneration package according to qualifications and applicable experience.
• 13th salary (annual gross salary paid in 13 instalments).
• Performance-based incentives and a discretionary yearly bonus based on personal and company performance.
• Provident Fund with profit-sharing deposit, subject to annual profitability results.
• Loyalty bonuses at milestone anniversaries (3 years, 5 years).
• Working hours: 08:15–17:30 Monday–Thursday | 08:15–13:00 on Fridays (Friday afternoon off).
• Hybrid working arrangement: 1 day work from home per week after initial training period (subject to job responsibilities).
• Continuous training and Microsoft certification opportunities.
• Exposure to leading Microsoft cloud and infrastructure technologies.
• Career growth and advancement opportunities within a dynamic team.
• Professional, collaborative, and friendly working environment.
All applications will be treated with the strictest confidentiality. Interested applicants can apply through vacancies@demstar-tech.com by selecting the “Senior Microsoft & Infrastructure Solutions Support Engineer” vacancy, no later than Thursday, 9th of July 2026.
Interested candidates are kindly requested to send their CV to the HR Manager at Vacancies@demstar-tech.com.
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