City of London, London, United Kingdom Hybrid / WFH Options
Randstad Digital
Linux Administrator Location: London (Hybrid … days in office) Permanent Availability: Immediate Joiner About the Role We’re seeking a highly skilled Linux Administrator with strong RedHatEnterpriseLinux (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 … operational excellence. Collaborate effectively with cross-functional teams and communicate clearly with technical and non-technical stakeholders. Requirements Strong experience with RedHatEnterpriseLinux (RHEL) administration. Proven expertise with RedHat Satellite installation, configuration, and management. Hands-on experience with Ansible/AAP and Infrastructure as Code practices. Practical knowledge of VMware management More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Randstad Digital
Linux Administrator Location: London (Hybrid … days in office) Permanent Availability: Immediate Joiner About the Role We're seeking a highly skilled Linux Administrator with strong RedHatEnterpriseLinux (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 … operational excellence. Collaborate effectively with cross-functional teams and communicate clearly with technical and non-technical stakeholders. Requirements Strong experience with RedHatEnterpriseLinux (RHEL) administration. Proven expertise with RedHat Satellite installation, configuration, and management. Hands-on experience with Ansible/AAP and Infrastructure as Code practices. Practical knowledge of VMware management More ❯
Linux Administrator Location: London (Hybrid … days in office) Permanent Availability: Immediate Joiner About the Role We're seeking a highly skilled Linux Administrator with strong RedHatEnterpriseLinux (RHEL) experience to join our infrastructure engineering team click apply for full job details More ❯
Platform Engineer to join their Platform Engineering Team (20+ team members). This is a hands-on technical role focused on automation, streaming platforms, and DevOps tooling across their enterprise infrastructure. You'll work within collaborative pods responsible for different application groups, building automation solutions, managing CI/CD pipelines, and implementing infrastructure-as-code . This role offers … OpenShift 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 …/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 More ❯
Linux Engineer – Up to £300k-£550k Total Comp | London We’re hiring for a Linux Engineer to join the Compute Engineering team at one of the most technically advanced hedge funds and market makers in the world (client name kept confidential). This is a rare opportunity to work on low-level Linux engineering that directly supports … global trading and research systems. This isn’t a typical Linux admin role. You won’t be managing users or installations — you’ll be writing the 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. … the future of Linux systems at scale in a highly technical, low-latency environment What we’re looking for: 4+ years of deep Linux experience — ideally across RHEL, CentOS, or Ubuntu Strong coding skills in Python or Go (bonus points for C++ or Rust) Experience tuning system performance (kernel parameters, memory, scheduling, etc.) Knowledge of infrastructure-as-code More ❯
Collaborate with cross-functional teams to deliver robust and scalable trading solutions Skills and Experience Minimum 10 years of software development experience using C and C++ Advanced proficiency in Linux systems (e.g., system calls, multi-threading, IPC, sockets, scheduler) Knowledge of FIX/ITCH/OUCH protocols and hands-on experience building applications utilizing them Strong understanding of networking … applications 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 LinuxRedHat gcc and SunPro compilers gdb and dbx debuggers Solace messaging bus Perforce version control More ❯
Experience of developing low-level, high performance systems. Familiarity with Service Orientated Architecture, concurrency models and threading, multicast messaging or FIX message protocols would be advantageous. Key Skills: C++, RedHatLinux (ideally V7 or later), Low Latency/High Performance trading applications/platforms. Services offered by Computappoint Limited are those of an Employment Business and More ❯
This is an excellent opportunity for Linux on Z/zSystems Engineer professionals to be part of leading-edge technology projects. Cognizant’s Cloud, Infrastructure & Security Services Practice provides end-to-end solutions covering architecture, design, implementation, management, and on-going support across the entire enterprise technology infrastructure. Our services include a spectrum of management, consulting, and systems … running on IBM Z (Linux on Z/LinuxONE) including z/VM and LPAR environments. Manage lifecycle tasks: provisioning, patching, kernel tuning, backups and system upgrades for RHEL/SLES on Z. Implement automation for repeatable operations (Ansible, Terraform, shell/python), CI/CD pipelines for platform-level changes. Monitor platform health, investigate incidents, perform root-cause … Maintain runbooks, architecture diagrams and operational runbooks; contribute to capacity planning and evergreen/refresh projects. Required Skills Strong administering Linux on IBM Z or Linux ONE (RHEL/SLES on Z) — strong hands-on experience with z/VM, LPAR management and guest lifecycle. Solid Linux sysadmin skills: kernel tuning, package management, troubleshooting, scripting (bash + More ❯
City of London, London, United Kingdom Hybrid / WFH Options
CLS Group
Infrastructure Unix Support Department - Technology Corporate level - Assistant Vice President Report to - Vice President Location - London, onsite 2 days per week Key Responsibilities Provide project support for the Production Linux environments with Symantec Clustering Technology. Responsibilities include Linux backup/restores, daily checks, maintenance tasks and building new systems and applying service packs. Manage and escalate problems as … Identify solutions and support any fixes that are required as part of service improvement. Follow the CLS Change Management procedure and other standard practices in installing, configuring and supporting Linux Cluster and Linux Infrastructure and relates items in Test and Production environments. Upgrade or maintain software at a time when the impact to the business is minimised. Execute … the failover for the Linux and application services as required. Create, maintain and review operational process and support documentation. Perform daily/weekly/quarterly system checks. Ensure any issues identified are tracked and addressed. Participate in planned weekend work as required. Perform monthly operating system security patching. Strategic Ensure CLS internal systems are managed to the highest standard More ❯
control M, Autosys 4. DevOps & Automation Tools Experience with CI/CD tools (Jenkins, GitLab CI, etc.) Familiarity with scripting (bash, ant, Python/Perl scripts on LINUXRHEL etc.) to automate operational tasks 5. Cloud & Container Platforms Exposure to public cloud environments (AWS, GCP, or Azure) Experience in container orchestration, resource management, and monitoring 6. Problem Solving & Out More ❯
side organisation renowned for its technical innovation, robust systems, and industry-leading analytical capabilities. You’ll be part of a talented, collaborative Infrastructure Engineering team responsible for the global Linux estate supporting mission-critical systems. What You’ll Get Competitive base salary and comprehensive benefits package Exposure to cutting-edge enterprise and cloud technologies across global environments The … for career progression within a dynamic, forward-thinking engineering team What You’ll Do Take ownership of the day-to-day management and stability of the organisation’s global Linux/Unix infrastructure, spanning on-premises and cloud environments. Build, optimise, and secure AWS environments using Infrastructure-as-Code tools such as Terraform. Develop and maintain automation frameworks for … continuity exercises to ensure readiness across all critical systems. Contribute to strategic discussions around infrastructure design, capacity planning, and future platform evolution. What You’ll Need Strong background in RHEL/Linux systems administration and automation Hands-on experience with AWS and related services (EC2, S3, IAM, RDS) Expertise in Terraform, Puppet, Foreman, and Unix shell scripting Solid understanding More ❯
Experience 10+ years of hands-on experience with CyberArk PAM suite. Strong knowledge of privileged access concepts, RBAC, and compliance frameworks (NIST, ISO 27001). Experience with Linux (RHEL 9), Windows Server, Oracle DB, and cloud platforms. Scripting and automation skills (PowerShell, REST APIs). Proven track record in CyberArk upgrades and custom integrations. Excellent communication and stakeholder engagement More ❯
Linux/Kubernetes Engineer - - Investment Bank Up to £100,000 Basic salary 5-days a week onsite in City of London What’s on offer: 10% employer pension contribution Discretionary bonus 30 days holiday Private health and life insurance Enhanced parental leave Flexible working and wellbeing support About Join a tech-forward financial services firm combining 400+ years of … networking infrastructure with a Kubernetes-first architecture, treating pods as first-class citizens in a highly available, BGP-based leaf/spine fabric Lead systems administration on Ubuntu and RHEL systems, tuning OS configurations for performance, observability, and compliance Develop services like DNS-based discovery and egress gateways for smart routing of financial traffic Automate infrastructure using Terraform, Ansible, Git … and CI/CD tooling What we’re looking for: Deep Linux/UNIX experience (Ubuntu & RHEL) Kubernetes administration expertise, ideally on bare-metal Solid understanding of networking (TCP/IP, BGP, VLANs, VRF) Scripting and IaC experience (Python, Bash, Helm, Terraform) Experience working in regulated environments with PAM, policy-as-code, and strong security posture If you're More ❯
of leading-edge technology projects. Cognizant’s Cloud, Infrastructure & Security Services Practice provides end-to-end solutions covering architecture, design, implementation, management, and on-going support across the entire enterprise technology infrastructure. Our services include a spectrum of management, consulting, and systems integration services to help our clients maximize value in their infrastructure resources, while optimizing infrastructure performance and … Environment Linux Patch Management , Upgrades , Installation and Trouble shooting , Responsible to BAU Support. Manage Incident/Change/Problem/Asset Management using ITSM tool Service Now. Perform RHEL System Administration on RHEL7/8 and Amazon Linux 2. Support development teams with their AWS (Amazon Web Services) deployments and troubleshoot issues. Assist in configuration through amendment of … tools Knowledge of Docker or container-based systems Knowledge of AWS Services, such as EMR, Connect,CloudFormation, Lambda, SNS and SQS Knowledge ofChef and/or Ruby AWS or RHEL certification More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Venn Group
Venn group is proud to partner with prestigious London based university to hire a Linux Support Engineer, this exciting opportunity to provide technical expertise across a complex and evolving infrastructure environment. The post holder will be responsible for ensuring the stability, performance, and security of critical Linux-based systems, while supporting automation, monitoring, and high-availability environments. Salary … Contract type: Permanent Working hours: Full time Hybrid 60% Location: Central London (Hybrid working) Job responsibilities include: Maintain high availability and performance of Linux systems across production and test environments Monitor infrastructure health and respond proactively to performance alerts Support planned maintenance, system updates, and disaster recovery procedures Participate in the organisation’s on … call rota for out-of-hours support (when required) Provide third-line support and act as the final point of technical escalation Work with a variety of technologies including RHEL, CentOS, Ubuntu, VMware, and F5 load balancers Manage web services, LAMP stack applications, Samba servers, and authentication proxies Utilise tools such as Ansible, Katello, Nagios, Prometheus, and Grafana for configuration More ❯
blends Linux engineering, network optimisation, and policy-driven security in one of London’s most forward-thinking technical environments. Tech you’ll work with: Linux (Ubuntu/RHEL) Kubernetes (bare-metal) Terraform, Ansible, Helm, Git BGP, Calico, Kyverno, OPA Python, Bash Why join? £100,000 basic + bonus 10% employer pension 30 days annual leave Private medical & life … cover Enhanced parental leave Full-time onsite in City of London If you’re a Linux & Kubernetes expert who wants to push the limits of infrastructure performance in a fast-moving, high-impact financial setting - this role is for you. More ❯
business within CIB Global Markets trading room. The team provides technical support for all back-end components running on FX eTrading environments (more than 600 production servers – Windows or Linux) as well as interconnections with many external trading venues and other internal systems. Production platforms are mainly installed in London, New York, Tokyo and Singapore and most of them … as 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 More ❯
Ansible | Linux | Ubuntu | On-premise | Bare Metal | Kubernetes | Containerisation | K8s | Containers | PostgresSQL | GCP | Google Cloud | Openshift | RHEL Enjoy getting into the weeds of Containers? Working on Bare Metal Servers? Excited by the prospect of joining a scale up who're holding onto their closeknit feel? I've partnered a scaling and backed SaaS on their search for an SRE … service as well as AI driven products to enable global leaders to make the work life place better for their staff and products. They work on a stack of Linux (Ubuntu), Ansible and Postgres to ensure their customers across FTSE100 and Fortune 500 are able to make data-centric decisions via the AI SaaS. Working on a team of … suits and you want to hear more - apply or email robin.shaw@opusrs.com Ansible | Linux | Ubuntu | On-premise | Bare Metal | Kubernetes | Containerisation | K8s | Containers | PostgresSQL | GCP | Google Cloud | Openshift | RHELMore ❯
Ansible | Linux | Ubuntu | On-premise | Bare Metal | Kubernetes | Containerisation | K8s | Containers | PostgresSQL | GCP | Google Cloud | Openshift | RHEL Have you got experience working on bare metal Containerisation? Are you excited by the prospect of working on highly secure Data Centre environments and greenfield Cloud projects? I'm partnered with a scaling and well-backed SaaS on their search for an … SRE to work on RKE Kubernetes that scale their customers product. They work on a stack of Linux (Ubuntu), Ansible and Postgres to ensure their customers across FTSE100 and Fortune 500 are able to make data-centric decisions via the AI SaaS. Working on a team of 5, you'll be working on all things Containerisation and be getting … suits and you want to hear more - apply or email robin.shaw@opusrs.com Ansible | Linux | Ubuntu | On-premise | Bare Metal | Kubernetes | Containerisation | K8s | Containers | PostgresSQL | GCP | Google Cloud | Openshift | RHELMore ❯