London, England, United Kingdom Hybrid / WFH Options
MUFG Americas
Build strong working relationships across the organisation. Adhere to the core values of the bank. Skills and Experience: Essential: Red Hat and Solaris in-depth – including system internals and kernel tuning. Red Hat Satellite. Ansible. AWX. REST API integration. Scripting. CI/CD pipelines and other automation concepts. Dev/Ops mentality. Git. Security hardening principles in line with More ❯
to respond to high-urgency or emergency events outside of your local time-zone. Here's what you need: Technical Expertise In-depth understanding of the Linux operating environment: kerneltuning, network stack tuning, system observability & instrumentation, and security & access management. Solid understanding of layer 2-7 networking fundamentals and the relationship between servers & services, and the More ❯
Linux-based systems. This includes, workload scheduling design and implementation, management of systems at large scale, high performance file system design and operation, software design and life cycle (SDLC), kernel and network performance tuning for low-latency and high-throughput applications instrumentation and telemetry collection. Your present skillsets: As a senior engineer, you will partner closely with our … manner You will have 10+ years of experience in Linux systems administration and platform engineering, with a proven track record of technical leadership Deep knowledge of high-performance analysis, tuning and optimisation across Linux kerneltuning, hardware optimisation, network performance and storage performance You will identify, troubleshoot, and resolve high-complexity system issues, optimizing system performance and More ❯
to respond to high-urgency or emergency events outside of your local time-zone. Here's what you need: Technical Expertise In-depth understanding of the Linux operating environment: kerneltuning, network stack tuning, system observability & instrumentation, and security & access management. Solid understanding of layer 2-7 networking fundamentals and the relationship between servers & services, and the More ❯
system management tasks using Ansible. Participate in an on-call rotation to support global operations. Required Skills & Experience: Strong hands-on Linux (RHEL/CentOS/Rocky) administration, including kerneltuning and system optimization. Proficiency with GitLab for version control and CI/CD workflows. Solid understanding of Kafka in high-throughput environments. Experience with observability tools such More ❯
/IP network programming and familiarity with LBM/UME Proven experience in ultra-low latency application development Proficiency in Linux/Unix, with an understanding of OS and kernel architecture Advanced knowledge of system architecture, design, and business processes Ability to work collaboratively in teams and develop meaningful relationships to achieve common goals Familiarity with modern Continuous Integration … and follow Agile Methodologies and Principles Preferred Qualifications, Capabilities, and Skills: Knowledge of Multi-Asset Electronic Trading and Equities, Futures, and Options Exchange Connectivity experience is desirable Experience with kerneltuning and low-level system programming Experience with Python, Git #J-18808-Ljbffr More ❯
London, England, United Kingdom Hybrid / WFH Options
Proton
connectivity, stability, performance, scalability, security, and resilience—particularly in adversarial network environments Job requirements: Linux Expertise: Knowledge of Debian/Linux operating system internals, including NFtables, networking stack, and kerneltuning Infrastructure as Code: Experience with orchestration and automation using Ansible or similar tools Programming Skills: Python proficiency for developing automation tools and operational scripts Observability Tools: Hands More ❯
London, England, United Kingdom Hybrid / WFH Options
MUFG
group. ·Build strong working relationships across the organisation ·Adhere to the core values of the bank. Skills and Experience: ·Red Hat and Solaris in-depth – including system internals and kernel tuning. ·CI/CD pipelines and other automation concepts ·Security hardening principles in line with CIS industry benchmarks. ·Excellent knowledge of networking, storage, database and virtualization layers. ·Good working More ❯
modeling requirements into scalable storage solutions Work with technologies such as NFS, S3, GPFS, Lustre, CEPH, VAST, WEKA, or DDN Optimize storage and network performance using advanced benchmarking and kerneltuning techniques Contribute to infrastructure automation using Terraform, Ansible, and CI/CD tools like GitLab and Jenkins What You Bring: 8+ years of hands-on experience in … storage systems and infrastructure engineering Deep knowledge of high-performance storage protocols (POSIX, NFS, CIFS, S3) and network technologies (ROCE, Infiniband, kernel bypass) Strong scripting or programming experience (Python, Golang or similar) Passion for performance optimization, automation, and technical problem-solving Experience supporting HPC environments or AI/ML research workloads is a strong plus #J-18808-Ljbffr More ❯
of our systems. Ideally you have many years of experience building and supporting large-scale software systems and you feel comfortable talking to infrastructure engineers about networking issues or kerneltuning as well as reporting .NET garbage collector bugs to Microsoft! Responsibilities Help implement and maintain systems that track and alert on service level objectives Focus on improving More ❯
Hat Satellite to manage Linux environments. • Proficiency with scripting languages (i.e., bash/shell, Python, and Perl). • Strong troubleshooting skills including knowledge of Linux boot processes, Kickstart, systemd, kerneltuning, and system diagnostics. • Experience configuring and securing Linux storage solutions. • Familiar with Linux package management tools (i.e., rpm, yum, and dnf). • Solid understanding of networking concepts More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Understanding Recruitment
performance and availability issues. Collaborate with internal and external partners including network, application, quant, and business teams to deliver scalable solutions. Proactively identify potential system bottlenecks and implement performance tuning and optimizations. Manage and tune Linux systems (RHEL, Rocky, CentOS, OEL) for low latency applications, including memory, CPU, and network tuning. Work closely with low latency network technologies, including … kernel bypass with Solarflare/onload, and understand physical server architecture differences (Intel, AMD, ARM). Automate operational workflows and scripting using Python, Rust, or Bash. The ideal candidate will have: 8+ years experience in Linux system operations, engineering, or performance tuning in enterprise or trading environments. Experience with High Performance Computing (HPC) Deep understanding of network protocols … TCP, UDP, multicast) and low latency networking principles. Hands-on experience with kerneltuning and kernel development. Familiarity with configuration management tools such as Ansible, Chef, or Terraform. Strong scripting and automation skills, preferably Python, Rust, or Bash. Excellent problem-solving skills with a proactive and ownership mindset. Strong verbal and written communication skills. Nice to have More ❯
system management tasks using Ansible. Participate in an on-call rotation to support global operations. Required Skills & Experience: Strong hands-on Linux (RHEL/CentOS/Rocky) administration, including kerneltuning and system optimization. Production-level experience managing Kubernetes clusters. Proficiency with GitLab for version control and CI/CD workflows. Solid understanding of Kafka in high-throughput More ❯
system management tasks using Ansible. Participate in an on-call rotation to support global operations. Required Skills & Experience: Strong hands-on Linux (RHEL/CentOS/Rocky) administration, including kerneltuning and system optimization. Production-level experience managing Kubernetes clusters. Proficiency with GitLab for version control and CI/CD workflows. Solid understanding of Kafka in high-throughput More ❯
performance and availability issues. Collaborate with internal and external partners including network, application, quant, and business teams to deliver scalable solutions. Proactively identify potential system bottlenecks and implement performance tuning and optimizations. Manage and tune Linux systems (RHEL, Rocky, CentOS, OEL) for low latency applications, including memory, CPU, and network tuning. Work closely with low latency network technologies, including … kernel bypass with Solarflare/onload, and understand physical server architecture differences (Intel, AMD, ARM). Automate operational workflows and scripting using Python, Rust, or Bash. The ideal candidate will have: 8+ years experience in Linux system operations, engineering, or performance tuning in enterprise or trading environments. Experience with High Performance Computing (HPC) Deep understanding of network protocols … TCP, UDP, multicast) and low latency networking principles. Hands-on experience with kerneltuning and kernel development. Familiarity with configuration management tools such as Ansible, Chef, or Terraform. Strong scripting and automation skills, preferably Python, Rust, or Bash. Excellent problem-solving skills with a proactive and ownership mindset. Strong verbal and written communication skills. Nice to have More ❯
/IP network programming and familiarity with LBM/UME Proven experience in ultra-low latency application development Proficiency in Linux/Unix, with an understanding of OS and kernel architecture Advanced knowledge of system architecture, design, and business processes Ability to work collaboratively in teams and develop meaningful relationships to achieve common goals Familiarity with modern Continuous Integration … and follow Agile Methodologies and Principles Preferred Qualifications, Capabilities, and Skills: Knowledge of Multi-Asset Electronic Trading and Equities, Futures, and Options Exchange Connectivity experience is desirable Experience with kerneltuning and low-level system programming Experience with Python, Git About Us J.P. Morgan is a global leader in financial services, providing strategic advice and products to the More ❯
knowledge of operating systems predominantly Linux Fluent on the command line and shell scripting Very comfortable with modern Linux and programming concepts like C, sockets, virtual memory etc Performance tuningKerneltuning Deep experience customising Linux distributions for speed Ability to pick apart and analyse technical problems in a clear and concise manner. Understanding of networking protocols More ❯
London, England, United Kingdom Hybrid / WFH Options
Menlo Ventures
privacy best practice expertise Experience with machine learning infrastructure like GPUs, TPUs, or Trainium, as well as supporting networking infrastructure like NCCL Low level systems experience, for example linux kerneltuning and eBPF Technical expertise: Quickly understanding systems design tradeoffs, keeping track of rapidly evolving software systems Deadline to apply: None. Applications will be reviewed on a rolling More ❯
systems •5 years of experience with bash/shell, Python and perl scripting •Understanding of Linux troubleshooting to include the boot process, Kickstart building, systemd, monitoring of system resources, kerneltuning, system performance troubleshooting, system calls and tracing •Experience configuring storage for Linux systems (LVM, file systems, RAID, storage encryption, SAN, NAS and NFS) •Package development and deployment … rpm, yum, dnf) •Strong overall network skills (package captures, NIC latency tuning, route tables and tracing, subnetting, firewall/iptable, TCP/UDP/IP protocols) •Ability to work independently toward delivery of goals as well as collaborate in team efforts •Excellent customer service skills •Excellent presentation, verbal and written communication skills •Demonstrate the ability to learn new technologies More ❯
systems •5 years of experience with bash/shell, Python and perl scripting •Understanding of Linux troubleshooting to include the boot process, Kickstart building, systemd, monitoring of system resources, kerneltuning, system performance troubleshooting, system calls and tracing •Experience configuring storage for Linux systems (LVM, file systems, RAID, storage encryption, SAN, NAS and NFS) •Package development and deployment … rpm, yum, dnf) •Strong overall network skills (package captures, NIC latency tuning, route tables and tracing, subnetting, firewall/iptable, TCP/UDP/IP protocols) •Ability to work independently toward delivery of goals as well as collaborate in team efforts •Excellent customer service skills •Excellent presentation, verbal and written communication skills •Demonstrate the ability to learn new technologies More ❯
TLS, DNS, DHCP, Squid, nginx, and more. Familiarity with open-source development (e.g., demonstrated through GitHub contributions). Understanding of DevOps practices and culture. Knowledge of Linux internals, including kerneltuning, device drivers, and system optimization. If this sounds of interest, please apply for further information or call us directly. More ❯