Network Security Appliance Engineer
Join Kairostek and help build innovative technology solutions while working with talented professionals in a collaborative, growth-oriented environment.
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About Kairostek
At Kairostek, we believe great technology starts with great people.
We foster a culture of innovation, collaboration, and continuous growth, empowering our team to make a meaningful impact while building solutions that shape the future. Our teams work across software engineering, artificial intelligence, cloud infrastructure, cybersecurity, digital products, payments technology, and technology operations to deliver scalable and innovative solutions for global organizations.
If you are passionate about technology, problem-solving, and continuous learning, we would love to hear from you.
About the Role
We are seeking a detail-oriented and technically proficient Network Security Appliance Engineer to join our Technology Operations team. This role is responsible for the end-to-end management, deployment, and optimization of enterprise-grade security appliances (firewalls, IPS/IDS, VPNs) and load balancers, both on-premises and in the cloud. You will play a key part in safeguarding our hybrid network infrastructure, ensuring performance, high availability, and compliance with industry security standards.
Key Responsibilities
Network & Security Appliance Management: Configure, deploy, and maintain security appliances including firewalls (Palo Alto, Fortinet, Juniper, Check Point), IPS/IDS, load balancers (F5, Citrix ADC), and VPN concentrators. Ensure optimal performance, availability, and health across all sites and cloud environments.
Firewall, IPS/IDS & Security Policy: Develop, implement, and audit firewall and IPS/IDS policies. Regularly review rulesets and configurations for security and compliance. Respond to security incidents and proactively monitor logs and alerts to detect threats.
Load Balancer Configuration & Traffic Optimization: Design, configure, and maintain application load balancing for high availability, traffic distribution, and performance. Tune and troubleshoot load balancer issues for mission-critical applications.
VPN & Remote Access: Configure and support site-to-site and remote access VPNs (IPSec, SSL VPN). Troubleshoot connectivity issues and ensure secure access for remote users and partners.
Network Monitoring & Troubleshooting: Leverage monitoring tools to track device health, performance, and threats. Investigate and resolve incidents, conduct root cause analysis, and implement preventive measures.
Cloud Security Appliance Management: Deploy and manage security appliances and load balancers in public cloud environments (AWS, Azure), including cloud-based firewalls, WAFs, and VPNs. Integrate with hybrid network architectures.
Automation & Scripting: Develop and maintain scripts (Python, Bash, PowerShell) to automate routine tasks, configuration backups, and reporting.
Documentation & Compliance: Maintain up-to-date documentation for appliance configurations, SOPs, and change logs. Ensure compliance with industry standards (ISO, PCI, GDPR) and internal security requirements.
Collaboration & Support: Work with Security, Infrastructure, and Service Desk teams to deliver network security projects. Provide escalation support and knowledge transfer to other IT staff.
Continuous Improvement: Conduct regular security assessments and vulnerability scans. Recommend and implement best practices, new technologies, and process improvements.
Qualifications & Experience
Bachelor’s degree in Computer Science, Information Technology, Engineering, or a related field
At least 2 years’ hands-on experience managing network security appliances, firewalls, and load balancers in enterprise or cloud environments
Proficiency in configuring and troubleshooting firewalls (Palo Alto, Fortinet, Juniper, Check Point) and load balancers (F5, Citrix ADC)
Solid understanding of IPS/IDS systems and their integration with network architectures
Experience with cloud security (AWS, Azure), including deployment and management of cloud-native security appliances
Strong knowledge of networking concepts (TCP/IP, DNS, DHCP, routing, switching, VLANs)
Experience with VPNs (IPSec, SSL VPN), access control, and secure remote access
Experience with network monitoring, management, and automation tools
Strong scripting and automation skills (Python, Bash, PowerShell)
Familiarity with industry standards and regulatory requirements (ISO, PCI, GDPR)
Excellent analytical, troubleshooting, and problem-solving skills
Effective communication and documentation abilities
PREFERRED SKILLS
Relevant certifications: PCNSE, Fortinet NSE, F5 Certified BIG-IP Admin, CCNA/CCNP Security, CompTIA Security+, or similar
Experience implementing Zero Trust, WAFs, and DDoS mitigation solutions
Experience designing secure hybrid and multi-cloud networks
Experience in both B2B and B2C environments
Experience with automation and orchestration platforms (e.g., Ansible, Terraform)
What We Offer
Competitive compensation package.
Flexible and remote-friendly work environment.
Professional growth and development opportunities.
Exposure to international projects and teams.
Collaborative and inclusive company culture.
Opportunity to work with modern technologies and innovative solutions.
Equal Opportunity Employer
Kairostek is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We welcome applications from qualified candidates regardless of race, ethnicity, gender, age, disability, religion, sexual orientation, or background.
- Division
- Kairostek
- Department
- Technology Operations
- Locations
- Limassol
- Remote status
- Hybrid
- Employment type
- Full-time
- Job Category
- Tech Job
About Kairostek
At Kairostek, we build technology that drives progress. From custom software and cloud infrastructure to strategic consulting, we help organizations innovate, grow, and succeed in a rapidly changing digital landscape. Join us and be part of building what's next.