1 to 25 of 56 Permanent Infrastructure Engineering Jobs in the City of London

Network & Infrastructure Engineer Location: London/Hybrid Salary: £40,000-£60,000 Overview We are seeking an experienced Network & Infrastructure Engineer to design, implement, and support secure, scalable, and high-performing technology environments across our organisation. This is an exciting opportunity to work at the cutting edge of Smart Building applications, IoT, IT/OT convergence to integrate … building auto; HVAC, lighting, security and IoT with enterprise IT Systems. This is a hybrid technical and stakeholder-facing role, combining hands-on engineering expertise with project delivery and business engagement skills. You’ll lead network and infrastructure initiatives end-to-end — from understanding user needs and translating them into technical designs, through to deployment, documentation, and optimisation. … The ideal candidate will have a strong grounding in network and security technologies, cloud infrastructure, and project management, with the ability to communicate effectively across technical and non-technical teams. Key Responsibilities Network & Infrastructure Design Design, deploy, and maintain network infrastructure including LAN/WAN, wireless, VPN, and firewalls. Configure and manage network segmentation, VLANs, and routing More ❯

Network & Infrastructure Engineer Location: London/Hybrid Salary: £40,000-£60,000 Overview We are seeking an experienced Network & Infrastructure Engineer to design, implement, and support secure, scalable, and high-performing technology environments across our organisation. This is an exciting opportunity to work at the cutting edge of Smart Building applications, IoT, IT/OT convergence to integrate … building auto; HVAC, lighting, security and IoT with enterprise IT Systems. This is a hybrid technical and stakeholder-facing role, combining hands-on engineering expertise with project delivery and business engagement skills. You’ll lead network and infrastructure initiatives end-to-end — from understanding user needs and translating them into technical designs, through to deployment, documentation, and optimisation. … The ideal candidate will have a strong grounding in network and security technologies, cloud infrastructure, and project management, with the ability to communicate effectively across technical and non-technical teams. Key Responsibilities Network & Infrastructure Design Design, deploy, and maintain network infrastructure including LAN/WAN, wireless, VPN, and firewalls. Configure and manage network segmentation, VLANs, and routing More ❯

client is a leading quantitative and systematic investment firm managing billions in assets globally, with offices in New York, London, Singapore, and beyond. As they continue to scale their infrastructure, they are seeking a Junior Systems Specialist to support the backbone of their compute and storage platforms. This is a hands-on, growth-focused opportunity within a highly technical … environment, perfect for someone early in their infrastructure career looking to develop in a world-class engineering team. As a Junior Systems Specialist, you’ll: Help manage and scale distributed compute and petabyte-scale storage systems Install, manage, and monitor Linux (RHEL-based) environments Troubleshoot hardware and software issues across the full stack Build tools and automation scripts … using Python, or Bash Work closely with engineering teams and vendors to resolve infrastructure issues The ideal candidate will have: Up to 4 years of experience in a Linux systems/infrastructure engineering role Strong scripting skills in Python , Bash , or Ruby Familiarity with configuration management tools (Ansible, Puppet, or Chef) Interest or exposure to observability More ❯

client is a leading quantitative and systematic investment firm managing billions in assets globally, with offices in New York, London, Singapore, and beyond. As they continue to scale their infrastructure, they are seeking a Junior Systems Specialist to support the backbone of their compute and storage platforms. This is a hands-on, growth-focused opportunity within a highly technical … environment, perfect for someone early in their infrastructure career looking to develop in a world-class engineering team. As a Junior Systems Specialist, you’ll: Help manage and scale distributed compute and petabyte-scale storage systems Install, manage, and monitor Linux (RHEL-based) environments Troubleshoot hardware and software issues across the full stack Build tools and automation scripts … using Python, or Bash Work closely with engineering teams and vendors to resolve infrastructure issues The ideal candidate will have: Up to 4 years of experience in a Linux systems/infrastructure engineering role Strong scripting skills in Python , Bash , or Ruby Familiarity with configuration management tools (Ansible, Puppet, or Chef) Interest or exposure to observability More ❯

Infrastructure Engineer with network skills 4 days a week in the office in London We are working with an Investment Manager in London who are seeking an experienced Infrastructure Engineer with solid understanding of Networking. The role will focus on maintaining the firm’s current hybrid cloud, network, Internet and server connectivity infrastructure, and the firewall estate … for a demanding business environment. The individual will deal with various issues, including On-Prem/Cloud Infrastructure, networking problems, and routine scheduled network infrastructure upgrades. The candidate must be hands-on and have experience working with Azure, Cisco, M365 and Windows Server. IaC concepts, with scripting know-how using PowerShell and Terraform to automate deployments and tasks. … You would be expected to: Maintain and monitor a highly available and complex hybrid cloud and network infrastructure Perform daily system and network monitoring Repair and recover from hardware and software failures across the entire infrastructure stack Identify issues proactively and suggest solutions Provide some end-user support including VIP support Manage switch and firewall software and update More ❯

Hardware Management Engineer – High Performance Infrastructure Location: London - Hybrid Permanent We are partnered with a leading global quantitative hedge fund seeking a Hardware Management Engineer to join their Research Infrastructure Engineering team. You will play a hands-on lead role in managing cutting-edge high-performance trading and research infrastructure , directly supporting research and trading teams … on mission-critical projects. This is a fantastic opportunity for an experienced Linux and infrastructure specialist to work at the forefront of HPC (high-performance computing), low-latency engineering, and large-scale systems . Key Responsibilities Manage and optimise large-scale Linux-based platforms for high-performance trading and research workloads. Design and implement workload scheduling, high-performance … file systems, and storage operations. Optimise hardware, networking, and kernel performance for low-latency and high-throughput environments . Partner closely with research and infrastructure teams to deliver scalable, reliable solutions. Drive automation using Terraform, Ansible, GitLab, Jenkins , and support SDLC best practices. Provide visibility and performance monitoring using Splunk, Prometheus, Grafana . Contribute to containerisation and orchestration strategy More ❯

Hardware Management Engineer – High Performance Infrastructure Location: London - Hybrid Permanent We are partnered with a leading global quantitative hedge fund seeking a Hardware Management Engineer to join their Research Infrastructure Engineering team. You will play a hands-on lead role in managing cutting-edge high-performance trading and research infrastructure , directly supporting research and trading teams … on mission-critical projects. This is a fantastic opportunity for an experienced Linux and infrastructure specialist to work at the forefront of HPC (high-performance computing), low-latency engineering, and large-scale systems . Key Responsibilities Manage and optimise large-scale Linux-based platforms for high-performance trading and research workloads. Design and implement workload scheduling, high-performance … file systems, and storage operations. Optimise hardware, networking, and kernel performance for low-latency and high-throughput environments . Partner closely with research and infrastructure teams to deliver scalable, reliable solutions. Drive automation using Terraform, Ansible, GitLab, Jenkins , and support SDLC best practices. Provide visibility and performance monitoring using Splunk, Prometheus, Grafana . Contribute to containerisation and orchestration strategy More ❯

Cyber Security Engineer CyberSec Engineer/IT Security Specialist Disaster Recovery, Resilience Testing, CyberSec Improvements, Vulnerability Scanning/Management, Infrastructure, Nutanix, Commvault, VMware, Azure, PowerShell, Python; Law Firm, Permanent, London/Hybrid (3/2). £80k - £95k (On Experience) +Bonus +Benefits Global Low Firm seeks experienced Cyber Security Engineer/IT Security Specialist to join the IT Infrastructure Engineering Team and play a key role in the strengthening of the IT security position and critically ensuring that Disaster Recovery, failover, and operational resilience capabilities are effective and continually improved through ongoing testing and (re)engineering. This is a hands-on, process-driven role where you will ensure that disaster recovery (DR), failover, and operational resilience capabilities … are robust, tested, reviewed, and continuously improved. Youll play a critical part in safeguarding business continuity and strengthening our cyber security posture, working closely with infrastructure, security, and business continuity teams. As such the CyberSec Engineer/IT Security Specialist will: Lead the planning, orchestration, and execution of DR and resilience testing Perform targeted regular and ad-hoc scans More ❯

well-being is safeguarded while closing the gaps in critical global labour needs. What You’ll Do: Own and manage the full lifecycle of both ML models and core infrastructure - from development and deployment to monitoring and continuous improvement. Build and maintain robust CI/CD pipelines for both software and ML workflows. Ensure reliability, scalability, observability, and security … and environment management using modern DevOps tooling. Collaborate closely with software engineers, data scientists, and product teams to bring ML-powered features to production. Proactively detect, troubleshoot, and resolve infrastructure and model performance issues. Stay up to date with industry best practices in DevOps, MLOps, and infrastructure engineering. Document infrastructure, workflows, and operational procedures clearly and thoroughly. … We’re Looking For: Proven experience in a senior-level DevOps, MLOps, or related infrastructure-focused engineering role. Strong proficiency in Python and familiarity with ML frameworks such as TensorFlow or PyTorch. Deep experience with cloud platforms (AWS, GCP, or Azure) and container orchestration tools (Docker, Kubernetes). Solid understanding of CI/CD systems (e.g., GitHub Actions More ❯

well-being is safeguarded while closing the gaps in critical global labour needs. What You’ll Do: Own and manage the full lifecycle of both ML models and core infrastructure - from development and deployment to monitoring and continuous improvement. Build and maintain robust CI/CD pipelines for both software and ML workflows. Ensure reliability, scalability, observability, and security … and environment management using modern DevOps tooling. Collaborate closely with software engineers, data scientists, and product teams to bring ML-powered features to production. Proactively detect, troubleshoot, and resolve infrastructure and model performance issues. Stay up to date with industry best practices in DevOps, MLOps, and infrastructure engineering. Document infrastructure, workflows, and operational procedures clearly and thoroughly. … We’re Looking For: Proven experience in a senior-level DevOps, MLOps, or related infrastructure-focused engineering role. Strong proficiency in Python and familiarity with ML frameworks such as TensorFlow or PyTorch. Deep experience with cloud platforms (AWS, GCP, or Azure) and container orchestration tools (Docker, Kubernetes). Solid understanding of CI/CD systems (e.g., GitHub Actions More ❯

My client, a leading multi-strategy hedge fund, is seeking an mid level (3-10 years of exp) Infrastructure Engineer to join their high-performing team. This individual will help support and evolve the firm’s multi-cloud technology estate (Azure & AWS) across Windows and Linux, where performance, scalability, and resilience are critical. You’ll work closely with an … Infrastructure Team Lead and senior leadership, contributing to cybersecurity posture and disaster-recovery programs while improving DevOps practices. This is an opportunity to work across a wide range of technologies, contribute to strategic projects, and make an immediate impact within a collaborative environment. Ideal profile: Helpdesk/service-desk background supporting end users, with strong troubleshooting skills. Microsoft stack More ❯

My client, a leading multi-strategy hedge fund, is seeking an mid level (3-10 years of exp) Infrastructure Engineer to join their high-performing team. This individual will help support and evolve the firm’s multi-cloud technology estate (Azure & AWS) across Windows and Linux, where performance, scalability, and resilience are critical. You’ll work closely with an … Infrastructure Team Lead and senior leadership, contributing to cybersecurity posture and disaster-recovery programs while improving DevOps practices. This is an opportunity to work across a wide range of technologies, contribute to strategic projects, and make an immediate impact within a collaborative environment. Ideal profile: Helpdesk/service-desk background supporting end users, with strong troubleshooting skills. Microsoft stack More ❯

Azure Infrastructure Engineer Hybrid working policy: 3 days per week required in the office. DGH Recruitment are currently recruiting on behalf of a leading global professional services firm who are looking for an Azure Infrastructure Engineer to join the team in London. This is a newly created role, working as part of a globally distributed team and will … the end to end cloud transformation from on premise infrastructures into Azure. The role will suit an individual with strong technical experience in both on premise and cloud based infrastructure (Microsoft) who has experience of cloud transformation programmes at an enterprise scale. Responsibilities: - Responsible for assessing current technologies and preparing for cloud transformation, working with the Platform Engineering team - Develops, maintains and documents infrastructure best practices, guidelines, and guardrails for on-premise and cloud technologies - Ensure application performance, uptime, and scale, maintaining high standards for code quality and thoughtful design - Identifies, analyses, and resolves legacy and cloud infrastructure vulnerabilities and deployment issues - Develops and deploys modular cloud-based systems - Working with the Platform Engineering More ❯

Infrastructure Engineer with network skills 4 days a week in the office in London We are working with an Investment Manager in London who are seeking an experienced Infrastructure Engineer with solid understanding of Networking. The role will focus on maintaining the firm’s current hybrid cloud, network, Internet and server connectivity infrastructure, and the firewall estate … for a demanding business environment. The individual will deal with various issues, including On-Prem/Cloud Infrastructure, networking problems, and routine scheduled network infrastructure upgrades. The candidate must be hands-on and have experience working with Azure, Cisco, M365 and Windows Server. IaC concepts, with scripting know-how using PowerShell and Terraform to automate deployments and tasks. … You would be expected to: Maintain and monitor a highly available and complex hybrid cloud and network infrastructure Perform daily system and network monitoring Repair and recover from hardware and software failures across the entire infrastructure stack Identify issues proactively and suggest solutions Provide some end-user support including VIP support Manage switch and firewall software and update More ❯

Infrastructure Engineer with network skills 4 days a week in the office in London We are working with an Investment Manager in London who are seeking an experienced Infrastructure Engineer with solid understanding of Networking. The role will focus on maintaining the firm’s current hybrid cloud, network, Internet and server connectivity infrastructure, and the firewall estate … for a demanding business environment. The individual will deal with various issues, including On-Prem/Cloud Infrastructure, networking problems, and routine scheduled network infrastructure upgrades. The candidate must be hands-on and have experience working with Azure, Cisco, M365 and Windows Server. IaC concepts, with scripting know-how using PowerShell and Terraform to automate deployments and tasks. … You would be expected to: Maintain and monitor a highly available and complex hybrid cloud and network infrastructure Perform daily system and network monitoring Repair and recover from hardware and software failures across the entire infrastructure stack Identify issues proactively and suggest solutions Provide some end-user support including VIP support Manage switch and firewall software and update More ❯

Systems Software Engineer (Python) Are you a top-tier Software Engineer with a passion for high-performance systems and a knack for solving complex infrastructure challenges? We are seeking an elite developer to join a rapidly growing, highly respected HFT company that operates at the cutting edge of its industry. This isn't a typical infrastructure support role. … rounded skills often found at companies like Google, Meta, and Netflix, who thrive on tackling difficult OS-level problems. The role You will be a core member of an infrastructure engineering team, focusing on developing, maintaining, and scaling the critical systems that power operations. Your primary tool will be Python, used to build robust, high-availability solutions that … complex, distributed systems, ideally gained at a hyperscaler or Tier-1/Tier-2 technology company known for demanding technical standards. Proven ability to tackle and resolve deep, complex infrastructure and OS-level issues. If you have a background in high-speed, data-intensive environments-including highly performant infrastructure in tech, gaming, or financial trading, we want to More ❯

At Optimus Search, we are specialists in the provision of Technology and Engineering recruitment services. We identify, engage and secure the leading tech talent in the European market place and connect them with the most exciting businesses and opportunities across the continent. The markets in which we work in constantly progress, so we do too. It’s this approach … that has taken us from our beginnings in the mobile market to our market-leading divisions of today. Technology: Microsoft Web & Mobile Cloud, Data & AI Infrastructure Engineering: Software Development Embedded Development (C/C Rust) Hardware & Electronics Automation (PLC) Systems Engineering We're currently seeking Trainee Recruitment Consultants to join our team, and we've made substantial More ❯

At Optimus Search, we are specialists in the provision of Technology and Engineering recruitment services. We identify, engage and secure the leading tech talent in the European market place and connect them with the most exciting businesses and opportunities across the continent. The markets in which we work in constantly progress, so we do too. It’s this approach … that has taken us from our beginnings in the mobile market to our market-leading divisions of today. Technology: Microsoft Web & Mobile Cloud, Data & AI Infrastructure Engineering: Software Development Embedded Development (C/C Rust) Hardware & Electronics Automation (PLC) Systems Engineering We're currently seeking Trainee Recruitment Consultants to join our team, and we've made substantial More ❯

My client, a leading hedge fund, is seeking a Senior Infrastructure Engineer to join their in-house engineering team. This individual will be responsible for designing, implementing, securing, and managing modern infrastructure services - partnering closely with Information Security and Support to deliver reliable trading platforms across the enterprise. This is an opportunity to work hands-on with … the latest Microsoft technologies - as well as core network infrastructure spanning LAN/WAN, Wi-Fi, firewalls, and cloud connectivity. You’ll contribute to service design and drive automation. The ideal candidate should bring strong TCP/IP networking fundamentals, proven scripting/automation skills (PowerShell or Python), and experience delivering cloud infrastructure (IaaS) and M365 deployments/… migrations. Proficiency with Conditional Access, CI/CD pipelines, and Infrastructure-as-Code (e.g., Terraform) is essential. Additional exposure to Exchange Online/Server, Teams, SharePoint, OneDrive, desktop build/deploy automation (Windows 365/AVD), and config management tools such as Ansible or Puppet will be highly advantageous. To secure the most relevant hire, my client is committed More ❯

My client, a leading hedge fund, is seeking a Senior Infrastructure Engineer to join their in-house engineering team. This individual will be responsible for designing, implementing, securing, and managing modern infrastructure services - partnering closely with Information Security and Support to deliver reliable trading platforms across the enterprise. This is an opportunity to work hands-on with … the latest Microsoft technologies - as well as core network infrastructure spanning LAN/WAN, Wi-Fi, firewalls, and cloud connectivity. You’ll contribute to service design and drive automation. The ideal candidate should bring strong TCP/IP networking fundamentals, proven scripting/automation skills (PowerShell or Python), and experience delivering cloud infrastructure (IaaS) and M365 deployments/… migrations. Proficiency with Conditional Access, CI/CD pipelines, and Infrastructure-as-Code (e.g., Terraform) is essential. Additional exposure to Exchange Online/Server, Teams, SharePoint, OneDrive, desktop build/deploy automation (Windows 365/AVD), and config management tools such as Ansible or Puppet will be highly advantageous. To secure the most relevant hire, my client is committed More ❯

fast-growing FinTech company that’s transforming how financial data and digital products are delivered to clients. They’re looking for a Platform Engineer to strengthen their cloud and infrastructure capabilities as the business scales. You’ll join a highly skilled engineering team building secure, resilient, and scalable platforms that power real-time financial applications. With a strong … focus on automation, reliability, and compliance , you’ll help shape the next generation of their AWS-based infrastructure and developer tooling. This is an opportunity to have real technical influence in a regulated, cloud-native environment , driving best practices across DevOps, infrastructure, and platform engineering. Tech Stack Cloud: AWS (EC2, RDS, S3, IAM, CloudWatch, Lambda) Infrastructure as … Configuration Management: Ansible Monitoring & Observability: Grafana, Prometheus CI/CD: GitHub Actions Automation & Scripting: Python, Bash, Go or Java What We’re Looking For Proven experience running AWS cloud infrastructure in a production or regulated (financial) environment. Hands-on experience managing Kubernetes clusters (preferably EKS). Strong understanding of Infrastructure as Code using Terraform. Familiarity with monitoring and More ❯

and scalable cloud solutions on Microsoft Azure. This role will suit a hands-on engineer with strong technical expertise and a proven track record of delivering enterprise-grade cloud infrastructure projects. Key Responsibilities Design, build, and optimize Azure-based infrastructure and services. Implement and manage Azure networking, storage, compute, and monitoring solutions. Work closely with development and operations … teams to support CI/CD pipelines and infrastructure automation. Ensure security, compliance, and governance best practices are applied across cloud environments. Troubleshoot and resolve issues in Azure environments. Provide technical documentation and knowledge transfer to internal teams. Support migration of workloads to Azure and optimize existing deployments. Required Skills & Experience Proven experience as an Azure Engineer or Cloud … Infrastructure Engineer. Strong knowledge of Azure services : Virtual Machines, AKS, App Services, Functions, Networking, Azure AD, Storage, and Monitoring. Expertise in Infrastructure as Code (IaC) – Terraform, ARM Templates, or Bicep. Hands-on experience with DevOps practices and tools such as GitHub Actions, Azure DevOps, or Jenkins. Knowledge of networking, security, and identity management in Azure. Experience with PowerShell More ❯

Experienced Data Centre lead with experience of works technical planning and HV/LV switching. Understanding of operational and maintenance principles in the disciplines of Data Centre Systems and infrastructure engineering to the level of subject matter expert. Experience in working with computerised maintenance management systems. Ability to prepare & present relevant information to all types of audiences in … and multi-cultural environment. Qualifications Educated in a relevant subject to level 5 in the European Qualifications Framework (e.g. UK HNC). Accreditation with a relevant industry organisation. Technical Engineering qualification. Proficient in written and verbal English. Relevant health and safety qualification. A bit about us Digital Realty brings companies and data together by delivering the full spectrum of More ❯

Senior Infrastructure Engineer Central London Up to £80k Well-established, highly profitable construction engineering business is seeking an experienced Senior Infrastructure Engineer to join them on a permanent basis. You'll be joining at a critical time as the organisation expands its technical capability, with ambitious growth plans and multiple acquisitions planned every year for the next … years (8 in the past 12 months). Reporting into the IT Operations Manager, you will oversee core infrastructure and networking. You'll work closely with managed service providers to ensure seamless operations and business continuity whilst taking a lead on regular site set-ups. Key Responsibilities: * Lead and manage office and site networks, aligning with business strategy * Act … an escalation point for the Service Desk Team * Set up and configure Local Area Networks (LANs), including hardware deployment and support * Coordinate with third-party MSPs for network and infrastructure management * Manage firewall operations and connectivity with ISPs * Oversee network IP addressing and VPN setups * Support business continuity through proactive incident management * Rapid deployment of site connectivity solutions, including More ❯

billion airline passengers rely on technology that hasn't kept up with the expectations of the modern connected traveller. That’s why we’ve started to rebuild the infrastructure that underpins the travel industry. We’re on a mission to unravel travel — simplifying systems and building the tools that will make the future of travel effortless. We were part … has helped build some of the world's largest companies. Our team in London is growing and we’re looking for talented people to join us on our journey 🚀 🤖 Engineering at Duffel We're building tools to simplify travel distribution, search and booking. What does this actually mean? It's one common and seamless API. This brings huge technical … of each airline whilst building a fantastic developer experience to go with it. The tools used on the team include Elixir, Phoenix, Kubernetes and Google Cloud Platform. ⚙️ Site Reliability Engineering at Duffel As an SRE at Duffel, you’ll be part of a small team within engineering that is responsible for the reliability, performance, and resilience of our More ❯