20 of 20 Permanent Network Engineer Jobs in the City of London

Senior Network Engineer

Location
City Of London, England, United Kingdom
hiring a Senior Network Engineer to join a highly technical, engineering-led organisation in London. This is a key opportunity to take ownership of AWS networking, drive infrastructure automation and help shape the future of a business-critical cloud and network environment. The organisation is investing heavily … networking environment, with a strong emphasis on automation, security and operational reliability. A significant part of the role will involve developing and maintaining network infrastructure using Terraform, creating reusable modules, improving Infrastructure as Code practices and introducing automated approaches to provisioning and change management. You will design AWS networking ...

Cyber Defence Network Engineer

Location
City Of London, England, United Kingdom
potential. And with that comes the opportunity to help redefine what our industry looks like, and what you want from your career. Job Description: Network Engineer, Cyber Defence Centre Alternatively, Grant Thornton At Grant Thornton we do things differently - looking to the future, driving ambitious growth and pioneering … environment with a strong team ethos. Support is always available across the SecOps, DFIR, MSS and wider cyber teams. We’re seeking an experienced Network Engineer to join our Cyber Defence Centre. This is a hands‐on technical role that spans live incident response, security assessment and hardening ...

Network Support Operations Engineer City Financial

Hiring Organisation
Stream Search Limited
Location
City of London, South East, United Kingdom
Employment Type
Permanent Contract, Hybrid
Salary
£65,000
Network Support Operations Engineer – Financial Trading £65,000 + Package & Bonus | London City | Hybrid WFH/Office An excellent opportunity for a Network Engineer with CCNA-level skills and around 4 years' experience to join a leading financial exchange in the City. CCNP training and development … provided , making this an excellent next step for an ambitious CCNA-level Network Engineer looking to progress their career. Working within a specialist team, you will support a low-latency, business-critical trading network across on-premise and cloud environments. Key Responsibilities: Monitor and support live network ...

Senior Network Engineer

Location
City Of London, England, United Kingdom
Title Senior Network Engineer Job Description About IG Group IG Group is a FTSE 100 fintech operating across five continents, serving over 1.4m customers and handling billions of dollars in transactions – built on scale, trust, and proof. We didn't pivot to innovation … give you the platform to define what comes next. Join us at IG – the future gets built here. As a Senior Network Engineer, you will play a key role in building and enhancing the infrastructure that powers our fast-growing retail brokerage business, while also supporting a variety ...

Senior Network Engineer (AWS & Python)

Location
City Of London, England, United Kingdom
Senior Network Engineer 6 Months London/Hybrid £580-£630 per day (Inside IR35) Initially 4 days per week onsite, reducing to 2 days per week onsite over time. My client in the financial sector are seeking 2 Senior Network Engineers to join a global engineering team … supporting a sophisticated, business-critical trading platform. The organisation operates a complex global technology estate, with network infrastructure connecting data centres, offices, cloud environments and critical trading services. Network availability, resilience, security and low-latency performance are fundamental to its operations. This is a hands-on senior engineering ...

Senior Network Engineer, IT Infrastructure

Location
City Of London, England, United Kingdom
/Internet)Gym Membership or Equipment ReimbursementLinkedIn Learning SubscriptionFlexible Work EnvironmentTuition Reimbursement After One Year of ServiceAccelerated Career PathAward-Winning Culture & Community OutreachThe Senior Network Engineer is responsible for architecting, designing and managing all facets of Network Administration, Telephone Systems, and Video Administration for Ryan. Role will … design and provide day to day support within the Network and Telecommunications department focusing on network switches, routers, load balancers, firewalls, cabling, wireless solutions, IDS devices and external connectivity. The Senior Network Engineer demonstrates superb technical competency and time management skills to deliver mission critical infrastructure ...

Network Engineer

Location
City Of London, England, United Kingdom
Internal Level: Senior Associate Reporting to: Network Manager Job Overview Aquis Exchange is seeking a capable Network Engineer to support, shape, optimise, and scale our infrastructure. You’ll join a small, expert Network team working across a low-latency trading network, cloud environments … premises systems—contributing to both strategic projects and hands‐on engineering. We are looking for someone who brings strong network problem‐solving skills, will handle client on‐boarding and can work in a fast‐paced financial environment. The ideal candidate will also refine processes, and deliver reliable, high‐quality ...

Network Engineer

Location
City Of London, England, United Kingdom
Title: Service Delivery Engineer (Network Engineering) Salary Range: Competitive based on experience Location: London, UK Overview: Quvia is the first AI-powered quality of experience (QoE) management platform for things that move, like ships and planes, transforming connectivity and digital experiences even in the most remote and hard … reach places. The Quvia platform uses AI and machine learning to seamlessly blend any combination of connectivity, regardless of provider, orbit or network, into one, vendor-neutral environment. It then delivers comprehensive, end-to-end analytics and dynamic network orchestration that optimises for the best possible ...

Senior Network Engineer - AWS, Python & Ansible

Location
City Of London, England, United Kingdom
Advanced Resource Managers Ltd. in London is seeking a Senior Network Engineer for a 6-month hybrid contract to join a global engineering team supporting a high-availability trading platform. You will own day-to-day network operations, incident management and changes across data centres, offices … cloud environments, with a focus on network automation using Python and Ansible. This role offers London-based hybrid work, with initial onsite presence and follow-the-sun coverage across regions, #J-18808-Ljbffr ...

Senior Network Engineer – Trading Infra & Security

Location
City Of London, England, United Kingdom
Aquis Exchange PLC is seeking a capable Network Engineer to support, shape, optimise, and scale our low-latency trading infrastructure in London. You will join a small, expert Network team working across cloud, on-prem, and exchange platforms—contributing to strategic projects and hands-on engineering. … role requires strong problem-solving, client onboarding experience, and a proactive approach to improving network and security infrastructure. #J-18808-Ljbffr ...

Senior Network Engineer – Cloud, DC & Automation

Location
City Of London, England, United Kingdom
Group in London seeks a Senior Network Engineer to strengthen and evolve our enterprise network. You will lead data center enhancements, design and operate containerised and cloud-based platforms, and drive proactive improvements across reliability and performance. You will collaborate with development teams, mentor engineers, and maintain comprehensive … network documentation to ensure clarity and continuity in a fast-paced, high-demand trading environment. #J-18808-Ljbffr ...

Cyber Defence Network Engineer — Incident Response

Location
City Of London, England, United Kingdom
Grant Thornton is seeking an experienced Network Engineer for their Cyber Defence Centre. You will lead containment of live incidents, perform security reviews, and design security solutions across cloud and on‐premise environments, collaborating with DFIR, SOC and advisory teams. The role emphasizes hands-on incident response, security … hardening, and delivering secure network design aligned with business priorities and regulatory requirements. #J-18808-Ljbffr ...

Senior AWS Network Engineer – On-Site London, Terraform

Location
City Of London, England, United Kingdom
Consortia in London is seeking a Senior Network Engineer to own AWS networking, drive automation, and shape a cloud-native, reliable infrastructure. You will design and evolve networking using Terraform, build reusable IaC modules, and ensure secure, highly available systems across hybrid environments. The role focuses on automating ...

Senior Network and Security Engineer

Hiring Organisation
CMC Markets UK Plc
Location
City of London, South East, United Kingdom
Employment Type
Permanent Contract, On-site
Markets is looking for an experienced Senior Network & Security Engineer to join our Technology team. This role plays a key part in designing, building and supporting our global network infrastructure, ensuring high performance, resilience and security across on-premise and cloud environments. You will work across both … operations, supporting critical trading platforms in a fast-paced, regulated environment. Key Responsibilities Design, implement and maintain CMC Markets' global LAN, WAN and cloud network infrastructure Deliver network engineering and design for new initiatives, alongside ongoing BAU growth and optimisation Monitor network performance, capacity and availability, providing ...

Electronic Trading Network & Systems Engineer

Hiring Organisation
James Joseph Associates Limited
Location
City of London, South East, United Kingdom
Employment Type
Permanent Contract, Hybrid
client is a prestigious buy-side electronic trading business. Additional headcount has been approved for a Senior Low Latency Network & Systems Engineer to help develop and optimise its high-performance trading infrastructure. This is an opportunity to work on technically demanding infrastructure where network performance, system efficiency … bonus opportunities and a wider benefits offering. KEY RESPOSIBILITIES: Design, build and optimise low-latency infrastructure supporting high-frequency and electronic trading platforms. Improve network connectivity and trading system performance, minimising latency, jitter and packet loss. Configure and tune Linux systems for maximum performance, including CPU affinity, NUMA optimisation ...

Network Infrastructure Engineer

Hiring Organisation
Halian Technology Limited
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 75,000 Annual
Network Infrastructure Engineer LOCATION- London (Hybrid - 2 days in the office) TERM- Permanent SALARY- £70,000 to £75,000 + bonus and Benefits BENEFITS - Bonus, Private Medical Cover, Pension, Hybrid Working, Training & Development, Wellbeing Benefits etc. We are highly respected professional services organisation currently undergoing significant technology transformation ...

Senior Network and Security Engineer

Hiring Organisation
CMC Markets UK Plc
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Markets is looking for an experienced Senior Network & Security Engineer to join our Technology team. This role plays a key part in designing, building and supporting our global network infrastructure, ensuring high performance, resilience and security across on-premise and cloud environments. You will work across both ...

Global Network Engineer - Maritime & AI QoE

Location
City Of London, England, United Kingdom
Quvia, the AI-powered QoE platform, is seeking a Service Delivery Engineer to deploy and support its NextGen connectivity platform. The role involves international travel for on-board installations, collaboration with vendors and customers, and hands-on network configuration across maritime deployments. Based in London, you will contribute ...

Electronic Trading Network & Systems Engineer

Hiring Organisation
James Joseph Associates Limited
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 170,000 Annual
client is a prestigious buy-side electronic trading business. Additional headcount has been approved for a Senior Low Latency Network & Systems Engineer to help develop and optimise its high-performance trading infrastructure. This is an opportunity to work on technically demanding infrastructure where network performance, system efficiency ...

Network Operations Engineer

Hiring Organisation
Hackajob Ltd
Location
City Of Westminster, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Our client is a global technology company. The United Kingdom Sovereign Operations team in our Public Sector delivers, operates and secures private cloud services. We aim to provide the flexibility, reliability, and scalability of public ...