application support and development teams Provide consultancy to application support and development teams Execute disaster recovery procedures when necessary and take part in regular DR tests Ensure patches and security updates are applied as per defined policies Maintain all operational procedures to ensure they are current and accurate Take part in On-Call & weekend work rotation; triaging and addressing … Skills and Experience: Windows Server 2k8/2k12/2k16/2k19 related technologies CI/CD pipelines and other automation concepts Git or other source code control software - Securityhardening principles in line with CIS industry benchmarks. Excellent knowledge of networking, storage, database and virtualization layers. Clustering and high-availability technologies Replication and disaster recovery. Security and auditing. Excellent knowledge of data security governance and regulations such as GDPR and SOX. Highly desirable: Other scripting languages (batch, VBS, VBA & Python nice to haves). Service Now automation/integration Good working knowledge of GitHub, Subversion and TeamCity/similar tools Splunk and QRadar System Center implementation and management - Understanding of DNS Nutanix HCI. EMC More ❯
Linux Administrator (DV Security Clearance) Position Description CGI's Space, Defence, and Intelligence business unit is dedicated to delivering cutting-edge technical solutions that address the most complex challenges faced by government agencies. Our mission-critical systems are custom-built to ensure security, reliability, and innovation, helping our clients protect the nation and its people. We are currently … landscape. Our culture values innovation, collaboration, and ownership, making it an ideal environment for self-motivated individuals to thrive. Our roles are only available if you hold a UK Security Clearance and are a sole UK National due to the secure nature of the project. You will either hold a higher level clearance or be willing to obtain it. … Any individual without security clearance is welcome to apply and will always be considered for this or wider opportunities in CGI, where appropriate. This role will require you to work on site in London 5x per week. Your future duties and responsibilities -Diagnosing and solutioning problems with the system in production and non-prod - Increase the efficiency of system More ❯
enterprise IT environment. You will be the ultimate subject matter expert, guiding the evolution of our on-premises and cloud identity platforms to support our business strategy, enhance our security posture, and enable a seamless user experience. This role requires a blend of strategic foresight, architectural mastery, and hands-on leadership. 2. Key Responsibilities Strategy & Architecture: Drive the technical … migrations. Evaluate emerging technologies in the identity space and create business cases for their adoption. Define and enforce enterprise-wide standards, policies, and best practices for all directory services. Security & Compliance: Act as the primary architect for securing Active Directory and Entra ID, implementing securityhardening principles like the Tiered Access Model and principles of least privilege. … technical escalation for complex and persistent directory services issues. Mentor and develop senior engineers and operations staff, fostering a culture of technical excellence. Lead cross-functional projects, collaborating with security, network, application, and cloud teams to deliver integrated solutions. Create and maintain comprehensive architectural documentation, including high-level designs, low-level designs, and standard operating procedures. 3. Essential Skills More ❯
architecture, management, and deployment of new and existing routing and switching within campus, cloud and data center networks. Lead proper execution of network changes & updates in accordance with corporate security policies to meet business requirements. Responsible for network performance, as well as conformance to securityhardening standards and assessment of CVEs. Ability to troubleshoot network-related issues More ❯
architecture, management, and deployment of new and existing routing and switching within campus, cloud and data center networks. Lead proper execution of network changes & updates in accordance with corporate security policies to meet business requirements. Responsible for network performance, as well as conformance to securityhardening standards and assessment of CVEs. Ability to troubleshoot network-related issues More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Searchability NS&D
Enhanced DV Clearance Required – Sole British Nationals Only About The Client: I am working with a highly regarded and secure-tech organisation leading cutting-edge digital infrastructure transformation across security programmes. They deliver ultra-secure, scalable and high-performance cloud platforms for clients operating in some of the UK's most mission-critical environments. Due to the ongoing success … Lead DevOps Engineers to support new and existing secure programmes of work. The Benefits: Highly competitive salary and hybrid flexibility Work on highly classified and secure projects within the security space Career progression within a modern DevSecOps culture Work with the latest tools and cloud platforms Opportunity to shape secure solutions at a large scale What You Will Be … initiatives across automation, container orchestration, and real-time data streaming pipelines. As a senior or lead engineer, you’ll be hands-on in both build and support, working across security-first infrastructure and enabling robust DevSecOps practices. Essential Skills: Strong experience with AWS MSK (Kafka) and secure multi-account AWS environments Proven production experience with Kubernetes, Docker, Helm Proficient More ❯
Enhanced DV Clearance Required – Sole British Nationals Only About The Client: I am working with a highly regarded and secure-tech organisation leading cutting-edge digital infrastructure transformation across security programmes. They deliver ultra-secure, scalable and high-performance cloud platforms for clients operating in some of the UK's most mission-critical environments. Due to the ongoing success … Lead DevOps Engineers to support new and existing secure programmes of work. The Benefits: Highly competitive salary and hybrid flexibility Work on highly classified and secure projects within the security space Career progression within a modern DevSecOps culture Work with the latest tools and cloud platforms Opportunity to shape secure solutions at a large scale What You Will Be … initiatives across automation, container orchestration, and real-time data streaming pipelines. As a senior or lead engineer, you’ll be hands-on in both build and support, working across security-first infrastructure and enabling robust DevSecOps practices. Essential Skills: Strong experience with AWS MSK (Kafka) and secure multi-account AWS environments Proven production experience with Kubernetes, Docker, Helm Proficient More ❯
IaC) principles. This senior position offers the opportunity to influence a broad range of infrastructure domains, including: Networking & Exchange Connectivity Linux Systems & Kubernetes Administration Microservice Orchestration & Observability Disaster Recovery & SecurityHardening SKILLS & EXPERIENCE REQUIRED: Containers & Orchestration: Deep knowledge of Kubernetes and container security. Experience in managing global or multi-cluster deployments is highly valued. Distributed Systems & Messaging: Strong More ❯
City of London, London, United Kingdom Hybrid / WFH Options
REC SOLUTIONS LIMITED
and managing the day-to-day operations of the Linux infrastructure team, including both senior-level system administrators and the Linux support desk staff. This role ensures the stability, security, and performance of mission-critical Linux-based systems including multiple exchanges as well as providing strategic direction, operational excellence, effective team leadership and close collaboration with other departments Responsibilities … the PM team. Oversee incident management, root cause analysis, and rapid resolution of system outages or performance degradation. Ensure compliance of procedures such as change management, patch management and security and audit processes. Assist in the maintenance of these procedures. Support regular security audits and penetration tests, addressing findings and oversee any remediation work. Improve system monitoring, alerting … system administration experience with at least 3 years in a managerial or team lead role. Strong expertise with RHEL-based systems, including installation, ongoing management, monitoring, performance tuning, system securityhardening, etc. Proven track record of managing geographically distributed teams, including senior engineers and tier-1/2 support staff including on-call and rota scheduling. Experience in More ❯
City of London, London, United Kingdom Hybrid / WFH Options
REC SOLUTIONS LIMITED
and managing the day-to-day operations of the Linux infrastructure team, including both senior-level system administrators and the Linux support desk staff. This role ensures the stability, security, and performance of mission-critical Linux-based systems including multiple exchanges as well as providing strategic direction, operational excellence, effective team leadership and close collaboration with other departments Responsibilities … the PM team. Oversee incident management, root cause analysis, and rapid resolution of system outages or performance degradation. Ensure compliance of procedures such as change management, patch management and security and audit processes. Assist in the maintenance of these procedures. Support regular security audits and penetration tests, addressing findings and oversee any remediation work. Improve system monitoring, alerting … system administration experience with at least 3 years in a managerial or team lead role. Strong expertise with RHEL-based systems, including installation, ongoing management, monitoring, performance tuning, system securityhardening, etc. Proven track record of managing geographically distributed teams, including senior engineers and tier-1/2 support staff including on-call and rota scheduling. Experience in More ❯
SMTP, DNS, HTTP, Radius. Detailed knowledge of monitoring applications such as zabbix, nagios, icinga, SolarWinds, OpManager and others. Detailed knowledge of server and storage hardware. Detailed knowledge of server security hardening. Detailed knowledge of server virtualization (hypervisor). Facility Management, Network Cabling, Equipment Installation. Knowledge and proficiency in Excel, Word, PowerPoint, Visio and Microsoft Outlook. Strong time management/ More ❯
SMTP, DNS, HTTP, Radius. Detailed knowledge of monitoring applications such as zabbix, nagios, icinga, SolarWinds, OpManager and others. Detailed knowledge of server and storage hardware. Detailed knowledge of server security hardening. Detailed knowledge of server virtualization (hypervisor). Facility Management, Network Cabling, Equipment Installation. Knowledge and proficiency in Excel, Word, PowerPoint, Visio and Microsoft Outlook. Strong time management/ More ❯
SMTP, DNS, HTTP, Radius. Detailed knowledge of monitoring applications such as zabbix, nagios, icinga, SolarWinds, OpManager and others. Detailed knowledge of server and storage hardware. Detailed knowledge of server security hardening. Detailed knowledge of server virtualization (hypervisor). Facility Management, Network Cabling, Equipment Installation. We regret to inform applicants that only shortlisted candidates will be notified. Thank you for More ❯
