City of London, London, United Kingdom Hybrid / WFH Options
Randstad Digital
Linux Administrator Location: London (Hybrid - 2 days in office) Permanent Availability: Immediate Joiner About the Role We're seeking a highly skilled Linux Administrator with strong RedHat Enterprise Linux (RHEL) experience to join our infrastructure engineering team. The ideal candidate will bring hands-on expertise in system administration, automation, and virtualization, while maintaining a proactive engineering mindset … focused on continuous improvement and efficiency. Key Responsibilities Install, configure, and manage RedHat Satellite servers. Perform server implementation, upgrades, maintenance, and monitoring across environments. Develop and maintain automation solutions using Ansible and Ansible Automation Platform (AAP). Manage and upgrade VMware environments. Troubleshoot and resolve system, platform, and network issues with minimal supervision. Apply knowledge of networking … challenge and improve existing processes, driving automation and operational excellence. Collaborate effectively with cross-functional teams and communicate clearly with technical and non-technical stakeholders. Requirements Strong experience with RedHat Enterprise Linux (RHEL) administration. Proven expertise with RedHat Satellite installation, configuration, and management. Hands-on experience with Ansible/AAP and Infrastructure as Code More ❯
Implement privileged access management using CyberArk Utilize Splunk and Grafana for monitoring, logging, and performance analysis Perform SQL and Oracle database administration and troubleshooting Maintain Windows Server and Linux (RedHat) environments Collaborate with engineering teams, project managers, and suppliers on technical implementations Qualifications and Requirements: Strong scripting abilities (Python or PowerShell preferred; Bash or Perl also valued … Jenkins and BitBucket/GitLab Configuration management with Ansible (Ansible Tower is highly valued) SQL Server and Oracle database administration Windows Server (2012/2016/2019) and Linux (RedHat) system administration Desirable Skills: CyberArk, containerization (Docker/Kubernetes/OpenShift), monitoring tools (Splunk/Grafana), web servers (IIS/Tomcat), Active Directory, networking, virtualization (VMware), and More ❯
london (city of london), south east england, united kingdom
Computappoint
Implement privileged access management using CyberArk Utilize Splunk and Grafana for monitoring, logging, and performance analysis Perform SQL and Oracle database administration and troubleshooting Maintain Windows Server and Linux (RedHat) environments Collaborate with engineering teams, project managers, and suppliers on technical implementations Qualifications and Requirements: Strong scripting abilities (Python or PowerShell preferred; Bash or Perl also valued … Jenkins and BitBucket/GitLab Configuration management with Ansible (Ansible Tower is highly valued) SQL Server and Oracle database administration Windows Server (2012/2016/2019) and Linux (RedHat) system administration Desirable Skills: CyberArk, containerization (Docker/Kubernetes/OpenShift), monitoring tools (Splunk/Grafana), web servers (IIS/Tomcat), Active Directory, networking, virtualization (VMware), and More ❯
Some Networking - Routers, Switches and Firewalls including Cisco - able to configure and troubleshoot mid-range switches and set up/troubleshoot VLANs Strong Linux/Unix System Administration Beneficial - RedHat, Ubuntu, Solaris. Core understanding of Databases - SQL Server/Oracle. Experience with any of the ISV’s products - Trading Technologies, Stellar, ULLink, WebICE, Object Trading, Fidessa, ION/Patsystems, Trayport. More ❯
Key Skills and Experience The ideal candidate will have expertise in the following technologies and skills: Technology/Skill Proficiency Level Linux Administration Proficient - CentOS, RedHat, Ubuntu - Linux Scripting Infrastructure-as-Code and Automation Proficient - Ansible - Terraform (AWS Terraforming) - HashiCorp Packer AWS Cloud Services Proficient - AWS VPC and VPC Peering - AWS VPC Endpoints - AWS Transit Gateway - AWS More ❯
london (city of london), south east england, united kingdom
HAAR Recruitment
Key Skills and Experience The ideal candidate will have expertise in the following technologies and skills: Technology/Skill Proficiency Level Linux Administration Proficient - CentOS, RedHat, Ubuntu - Linux Scripting Infrastructure-as-Code and Automation Proficient - Ansible - Terraform (AWS Terraforming) - HashiCorp Packer AWS Cloud Services Proficient - AWS VPC and VPC Peering - AWS VPC Endpoints - AWS Transit Gateway - AWS More ❯
key requirement will be ability to develop tools for the benefit of our production teams as well as develop further automation within our global platforms Strong understanding of Linux (Redhat) operating systems to be able to tune operating systems platforms for optimum performance Strong all-around IT background and ideally experience in electronic trading markets on similar environments Essential skills More ❯
london (city of london), south east england, united kingdom
Lorien
key requirement will be ability to develop tools for the benefit of our production teams as well as develop further automation within our global platforms Strong understanding of Linux (Redhat) operating systems to be able to tune operating systems platforms for optimum performance Strong all-around IT background and ideally experience in electronic trading markets on similar environments Essential skills More ❯
Flexible working hours Enhanced parental leave policies Employee Assistance Programme offering counselling sessions related to mental health, financial wellbeing and other topics Skills/Requirements : UNIX/Linux (Ubuntu & RedHat) K8s (must; administration as well as best-practise for usage), Calico Enterprise (desirable) Networking, in particular TCP/IP in general as well as understanding routes, routing More ❯
london (city of london), south east england, united kingdom
Harrington Starr
Flexible working hours Enhanced parental leave policies Employee Assistance Programme offering counselling sessions related to mental health, financial wellbeing and other topics Skills/Requirements : UNIX/Linux (Ubuntu & RedHat) K8s (must; administration as well as best-practise for usage), Calico Enterprise (desirable) Networking, in particular TCP/IP in general as well as understanding routes, routing More ❯
to be used by diverse Investment teams as part of their daily work. The target architecture will be written in pure Python, with SQL RDBMS, a Dockerised On-Prem RedHat Linux platform. Python is the primarily required skill, however solid professional profiency of building and shipping software in Linux/Docker environments as well as SDLC tooling such as GitLab More ❯
london (city of london), south east england, united kingdom
Winston Fox
to be used by diverse Investment teams as part of their daily work. The target architecture will be written in pure Python, with SQL RDBMS, a Dockerised On-Prem RedHat Linux platform. Python is the primarily required skill, however solid professional profiency of building and shipping software in Linux/Docker environments as well as SDLC tooling such as GitLab More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Venn Group
Maintain clear and up-to-date technical documentation Support knowledge sharing and training for first- and second-line teams Candidate profile: Strong hands-on experience in Linux system administration (RedHat, Ubuntu, etc.) Proven experience supporting enterprise-level infrastructure environments Familiarity with virtualisation (VMware) and configuration management tools (Ansible, Katello) Excellent problem-solving skills and ability to act as a technical More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Venn Group
Maintain clear and up-to-date technical documentation Support knowledge sharing and training for first- and second-line teams Candidate profile: Strong hands-on experience in Linux system administration (RedHat, Ubuntu, etc.) Proven experience supporting enterprise-level infrastructure environments Familiarity with virtualisation (VMware) and configuration management tools (Ansible, Katello) Excellent problem-solving skills and ability to act as a technical More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Lawrence Harvey
across technical and non-technical teams. Desirable : If you have worked in a scale-up AND established financial services/FinTech environment A background OR interest in Offensive Security, Red Teaming, CTF Certifications (advantageous) Certified Kubernetes Administrator (CKA) Certified Kubernetes Application Developer (CKAD) Certified Kubernetes Security Specialist (CKS) Linux Foundation Certified Engineer (LFCE) Linux Foundation Certified System Administrator (LFCS … RedHat Certified Engineer (RHCE) If you want to work alongside world-class engineers within Security, Cloud, Platform and Software - you'll love working here! Please apply using the link or directly email me on j.walsh@lawrenceharvey.com PLEASE NOTE: No VISA sponsorship is on offer in any of the stated locations, you must have right to work You More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Lawrence Harvey
across technical and non-technical teams. Desirable : If you have worked in a scale-up AND established financial services/FinTech environment A background OR interest in Offensive Security, Red Teaming, CTF Certifications (advantageous) Certified Kubernetes Administrator (CKA) Certified Kubernetes Application Developer (CKAD) Certified Kubernetes Security Specialist (CKS) Linux Foundation Certified Engineer (LFCE) Linux Foundation Certified System Administrator (LFCS … RedHat Certified Engineer (RHCE) If you want to work alongside world-class engineers within Security, Cloud, Platform and Software - you'll love working here! Please apply using the link or directly email me on j.walsh@lawrenceharvey.com PLEASE NOTE: No VISA sponsorship is on offer in any of the stated locations, you must have right to work You More ❯
london (city of london), south east england, united kingdom
Denu Recruit
code that shapes the Linux OS itself , making kernel-level changes, tuning for ultra-low latency, and solving the kinds of problems that get escalated all the way to Red Hat. What youll be doing: Writing and maintaining tools and infrastructure around the Linux OS Working closely with hardware and trading teams to fine-tune system performance Digging deep … driven culture Why this role stands out: Youll work on genuinely challenging, interesting problems with real-world impact The team is highly respected they submit the most bugs to RedHat Youll be surrounded by some of the best engineers in the industry More ❯
code that shapes the Linux OS itself , making kernel-level changes, tuning for ultra-low latency, and solving the kinds of problems that get escalated all the way to Red Hat. What you’ll be doing: Writing and maintaining tools and infrastructure around the Linux OS Working closely with hardware and trading teams to fine-tune system performance Digging … culture Why this role stands out: You’ll work on genuinely challenging, interesting problems with real-world impact The team is highly respected — they submit the most bugs to RedHat You’ll be surrounded by some of the best engineers in the industry More ❯
systems using command-line tools. Automate tasks and improve processes through scripting and configuration management. What we’re looking for: Extensive Linux engineering experience in a high-availability environment (RedHat/Debian-based or similar). Experience supporting mission-critical systems and high-performance applications. Strong scripting/automation skills (Bash, Python, or another high-level language). Experience with More ❯
london (city of london), south east england, united kingdom
Quant Capital
complex systems using command-line tools. Automate tasks and improve processes through scripting and configuration management. What were looking for: Extensive Linux engineering experience in a high-availability environment (RedHat/Debian-based or similar). Experience supporting mission-critical systems and high-performance applications. Strong scripting/automation skills (Bash, Python, or another high-level language). Experience with More ❯
City of London, London, United Kingdom Hybrid / WFH Options
CLS Group
Essential Bachelor’s degree or equivalent Prior IT operational support experience across business-critical Production infrastructure support, applications and database services. Desired Industry standard IT certification – AWS/Linux (Redhat)/VMware/Symantec VCS ITIL certification Our commitment to employees: We are a small company with a big mandate, so every person is essential to our success. We are More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
CLS Group
infrastructure Essential Bachelors degree or equivalent Prior IT operational support experience across business-critical Production infrastructure support, applications and database services. Desired Industry standard IT certification AWS/Linux (Redhat)/VMware/Symantec VCS ITIL certification Our commitment to employees: We are a small company with a big mandate, so every person is essential to our success. We are More ❯
Skilled in troubleshooting and performance optimization Working knowledge of financial instruments including Fixed Income, Money Markets, and Derivatives Experience with kernel bypass network drivers (e.g., Solarflare) Technology Stack Linux RedHat gcc and SunPro compilers gdb and dbx debuggers Solace messaging bus Perforce version control More ❯
london (city of london), south east england, united kingdom
BGC Group
Skilled in troubleshooting and performance optimization Working knowledge of financial instruments including Fixed Income, Money Markets, and Derivatives Experience with kernel bypass network drivers (e.g., Solarflare) Technology Stack Linux RedHat gcc and SunPro compilers gdb and dbx debuggers Solace messaging bus Perforce version control More ❯
Linux Administrator Location: London (Hybrid - 2 days in office) Permanent Availability: Immediate Joiner About the Role We're seeking a highly skilled Linux Administrator with strong RedHat Enterprise Linux (RHEL) experience to join our infrastructure engineering team click apply for full job details More ❯