Job Description

AEON Payment Technologies is a payment system solution provider with a Payment Institution License granted by the Central Bank of Cyprus. We offer a comprehensive range of services in the payment processing industry, including Schemes and Proprietary Debit/Credit/Prepaid Card Issuing, Clearing, Authorization, Reconciliation, Merchant Acquiring, Transaction Management, Infrastructure Support and Maintenance, PCI Compliance, Schemes Compliance, end-to-end Processing, and Consultancy. 

Job Title:

Senior System Administrator 

Location: 

AEON Payment Technology Office (Nicosia - On-Premises) 

Job Type & Working Hours: 

Full Time: 09:00—18:00 (1-hour lunch break) 

Overview:

The Senior System Administrator is responsible for managing, maintaining, securing, and improving AEON Payment Technologies' IT infrastructure across cloud, on-premises, and hybrid environments. 

The role ensures the availability, reliability, and security of business-critical systems supporting payment-processing operations, while maintaining compliance with internal security policies and applicable PCI DSS requirements. 

The role requires independent technical judgment, ownership of complex infrastructure issues, and active contribution to infrastructure planning, improvements, and technical decision-making. 

Key Responsibilities:

Systems & Infrastructure Administration 

- Administer and maintain Windows Server, Linux, Active Directory, DNS, and enterprise infrastructure services. 

- Manage server provisioning, configuration, patching, upgrades, performance, and system availability across production and non-production environments. 

Cloud Infrastructure 

- Manage and maintain AWS infrastructure, including EC2, VPC, IAM, networking, load balancers, and related services. 

- Support cloud infrastructure provisioning, automation, security, and optimization using tools such as Terraform and Terragrunt. 

Security & Compliance 

- Implement infrastructure security controls, system hardening, vulnerability remediation, and access management. 

- Implement and maintain assigned infrastructure security controls in accordance with applicable PCI DSS requirements, and support security assessments, audits, and remediation activities. 

- Manage secure connectivity, VPNs, firewalls, and SSL/TLS certificates. 

Monitoring & Incident Management 

- Maintain infrastructure monitoring, logging, and alerting solutions and AWS monitoring services. 

- Investigate and resolve complex infrastructure incidents, perform root cause analysis, and implement preventive measures. 

- Support troubleshooting of infrastructure issues affecting payment-processing systems and third-party connectivity. 

Networking & Business Continuity 

- Maintain and troubleshoot network connectivity, routing, load balancers, reverse proxies, and secure communications. 

- Support backup operations, disaster recovery procedures, and infrastructure resilience. 

Automation & Technical Collaboration 

- Develop scripts and automation to improve infrastructure management and operational efficiency. 

- Collaborate with Development, DevOps, Information Security, and other internal teams on infrastructure requirements and technical projects. 

- Support Microsoft 365, identity management, and corporate IT services where assigned. 

- Lead assigned infrastructure improvements, act as a technical escalation point, provide guidance to junior IT personnel, and maintain accurate technical documentation. 

Required Qualifications & Experience:

- Degree in Computer Science, Information Technology, or equivalent professional experience. 

- Minimum 5–7 years of experience in systems administration or IT infrastructure. 

- Strong experience with Windows Server, Linux, AWS, Active Directory, and enterprise networking. 

- Knowledge of infrastructure security, monitoring, virtualization, backup, and disaster recovery. 

- Familiarity with automation, scripting, Infrastructure as Code, and container technologies. 

- Strong troubleshooting, analytical, communication, and documentation skills. 

- Experience in financial services, payment processing, or PCI DSS-regulated environments is an advantage. 

- Strong technical expertise and independent problem-solving. 

- Accountability and ownership of assigned infrastructure responsibilities. 

- Security awareness and commitment to operational reliability. 

- Effective communication, teamwork, and technical coordination. 

- Proactive approach to automation and continuous improvement. 

Benefits:

- An attractive remuneration package based on experience. 

- Annual Bonus: A discretionary bonus based on individual and company performance, awarded annually starting after the completion of one full year of employment Private Medical Insurance for you and your dependents, commencing on your first day.

- Provident Fund Scheme eligibility upon completion of your probationary period.

- Gym Access at the company’s in-house facilities.

- Car Parking space provided.

- Flexible Working: up to three (3) days of remote work per month.

How to Apply

All applications will be treated with strict confidentiality

-  Interested applicants can share their CV’s to: careers@aeonpaymenttechnologies.com 
Please include "Senior System Administrator  – [Your Name]" in the subject line. 

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About Company

AEON PAYMENT TECHNOLOGIES LTD