Participate in an on-call rotation.
Monitor platform 24x7x365 and resolve any issues reported by monitoring application.
Maintain the availability, integrity and confidentiality of the security platforms.
Upgrade, remediate and patch underlying Operating Systems (Windows, Linux, ESXi, firewalls) to maintain the overall platform health.
Write and update knowledgebase articles.
Review design documentation to ensure they are accurate, unambiguous and verifiable.
Conduct vulnerability scans and propose steps for remediation.
User and groups administration.
Work across teams to deliver and support of BT Security services features.
Audit and maintain firewall configurations and policies.
Support the management of relationships with specific teams, suppliers and stakeholders.
Design, build and deliver custom applications and resilient systems for the security platform.
Identify and implement platform improvement work – continuously improving platform and BT Security performance.
Develop and implement observability tooling for the security platform.
Renew license and support contracts with vendors as/when required by BT Security Product Line and specific platforms.

Requirements

General IT and security operations knowledge and experience.
Knowledge of IP networks and protocols.
A background in server and application management in a security environment.
In depth practical experience and knowledge of a range of specific vendor products related to role.
In depth practical experience and knowledge of operating systems and server administration.
Excellent written and verbal communications, including documentations skills.
General IT problem solving and debugging.
IT troubleshooting. Network troubleshooting. Firewall troubleshooting.
Familiarity with ticketing and change management process and procedures.
Ability to learn new technologies without supervision. Self driven learning.
Open Source technologies.
Preferred: at least 50%+ of:
CISSP, CompTia Network+, Security+, CSA+ and/or CEH or equivalent Linux Systems Administration, including:
Install, configure, manage, maintain, and troubleshoot RHEL systems.
In-depth knowledge of SSH client and server configuration.
Unix/Linux shell scripting and common tools, including SELinux, FACLs, etc. Windows Systems Administration, including:
Install, configure, manage, maintain, and troubleshoot Windows systems.
PowerShell.
Microsoft Active Directory/DNS Administration.
Microsoft Terminal Server Administration.
Windows Event Log, and tools such as Winlogbeat, NXLog, Snare, etc. Network Administration, including:
Fortinet Firewalls and VPNs.
Cisco IOS routers, switches, and fibrechannel.
Networking protocols and troubleshooting. Internet Protocol Version 4.
Internet Protocol Version 6 (it will take off someday). Virtualisation, container orchestration and cloud technologies, including:
VMware vSphere & ESXi.
Docker, Kubernetes.
Proxmox, KVM, QEMU.
AWS, Azure, Google, etc. Fault, vulnerability, and performance monitoring, including:
Opsview, Nagios, Icinga.
Qualys.
Crowdstrike, Wazuh. Patch and configuration management and continuous deployment, including:
Ansible.
Foreman.
Terraform and Packer.
Version control, e.g., Git. Data processing, warehousing, log retention and SIEM:
Elasticsearch/OpenSearch, Logstash, Filebeat, etc.
Syslog-NG/Rsyslog.
Splunk, Graylog, LogRhythm, etc.
Grafana/Prometheus.
Security Analytics & Correlation.
Software Engineering skills such as Python, Perl, Java, Go, Regular expressions, etc.

Benefits

Cafeteria package - HUF 600,000/ year
Performance-based bonus
Company car or car allowance
Comprehensive private health care package for all the employees, which can be extended to family members
Nursery support for mothers returning from maternity
Extended paternity leave: 10+10 day fully paid days
Commuting allowance
Home office allowance
Employee discount opportunities

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

Linux Systems AdministrationWindows Systems AdministrationUnix/Linux shell scriptingNetwork AdministrationFirewall troubleshootingVulnerability scanningObservability toolingSecurity platform designPatch managementData processing

Soft Skills

Excellent written communicationExcellent verbal communicationProblem solvingSelf-driven learningCollaborationDocumentation skillsOrganizational skillsInterpersonal skillsAttention to detailAdaptability

Certifications

CISSPCompTia Network+Security+CSA+CEHLinux certificationMicrosoft certificationFortinet certificationCisco certificationAWS certification