12 network engineer jobs found in London

NETWORK ENGINEER - OUTSIDE IR35 We are seeking a highly motivated and experienced Network Engineer to join a dynamic technology team within a fast-paced investment banking environment. This role is ideal for an individual with strong technical expertise, excellent problem-solving skills, and experience supporting enterprise-grade network infrastructure in a regulated, high-availability setting. Key Responsibilities Support, configure, and maintain enterprise network systems, including routers, switches, firewalls, VPNs, and cloud-based network services . Monitor network performance, perform diagnostics, and troubleshoot issues to ensure high availability, reliability, and optimal performance . Assist in the design and implementation of secure, scalable network solutions aligned with business and security requirements. Collaborate with cross-functional teams to resolve network incidents and support ongoing business initiatives....

I am currently looking for a skilled Network Engineer to join a pharmaceutical client of mine. In this role, you will be responsible for designing, implementing, and supporting secure and resilient network and infrastructure solutions across a diverse technology environment. You will work with modern enterprise technologies including Juniper networking, Fortinet security platforms, Citrix virtualization, VMware infrastructure, and Microsoft Azure cloud services. Key Skills: Design, deploy, manage, and troubleshoot enterprise network environments based on Juniper technologies Configure and support Fortinet firewalls, VPNs, and security solutions Maintain and optimize virtualized environments using VMware Support and administer Citrix application and desktop delivery platforms Implement and manage networking and infrastructure services in Microsoft Azure Monitor network performance, availability, and security Diagnose and resolve complex network and infrastructure incidents...

We are seeking a Security Architect/Senior Security Engineer to support the design and implementation of security controls for the rollout of Cloud Adoption Framework (CAF) compliance activities within an AWS-based software delivery programme. The role will work closely with senior architects, engineers, and security stakeholders to help ensure solutions align with GDS Service Manual principles , supporting secure and resilient delivery across Privileged Access Workstations (PAWs) , SOC integration , and device security . This is a hands-on role suited to someone with solid cloud security experience who is looking to step further into architecture and assurance responsibilities within a UK public-sector environment. Key Responsibilities Security Architecture & Design Contribute to the definition and maintenance of security architecture for PAWs and AWS workloads in line with CAF and GDS standards. Support the development of secure patterns for application and...

Infrastructure Engineer - OUTSIDE IR35 - 3 Month rolling contract - Needs Active SC Clearance - Needs to be willing to work 2-3 days on site Skills and requirements: - Experience with VMware, SDDC Manager, VMware NSX, VMware vSphere and VMware Aria products. A significant part of the job is managing and troubleshooting this infrastructure including upgrading these products and applying patches -deploying/administering Active Directory, DNS, DHCP, PKI, Windows Server 2019-25 etc - The build and deployment of the VCF Components and Server Infrastructure - The configuration of NSX Rules to support Deployment - The hardening of the server and VCF environment to meet security standards - The build of network elements for the new v2 tenant environments to host workloads - Technical implementation to support application and server connectivity to external networks - Technical implementation of hosting elements to support ROSA Connectivity and...

Packet Core Design Engineer (4G / 5G SA) We are looking for a Packet Core specialist to lead the design and integration of a mission-critical Emergency Services Network . This role focuses on the transition from 4G legacy systems to a cloud-native 5G Standalone (SA) architecture. The Essentials 4G Design: Deep knowledge of MME, GW-C, GW-U and interfaces (S1-MME/U, S6a, S5/S8, SGi). 5G SA Design: Expertise in SBA architecture and N-interfaces (AMF, SMF, UPF). Cloud-Native: Experience with NFVI and Kubernetes (containerised systems management). Deliverables: Ownership of HLD/LLD , integration, and configuration management. Networking: Strong understanding of IP networks and core protocols. The Mission You will be responsible for the high-level and low-level design of core components, supporting critical test activities, and troubleshooting complex issues to ensure the...

Platform Engineer | Trading Firm Central London | 3 days on site Outside IR35 | Up to £650 per day A trading firm in central London has rolled out a business wide data platform and now needs a senior Platform Engineer to take full control of the platform layer. Kubernetes is the heart of this environment and they need someone who can run it with confidence, precision and zero drama. What they need you to bring Serious Kubernetes depth covering cluster design, workload orchestration, autoscaling strategies, multi cluster operations, network policy, resource tuning and deep debugging across pods, nodes and the control plane Deep Linux fluency with the ability to harden, tune and own production environments from top to bottom Strong SQL engineering skills covering schema design, performance tuning and high throughput optimisation Solid C# background with clean, maintainable service patterns Ability to design, build and refine CI/CD...

M365 Integration Engineer - M&A Projects - OUTSIDE IR35 M&A project My client in the Insurance industry are searching for multiple Engineers to join the M&A Project. This role forms part of a distributed, global infrastructure team that is responsible for the continued availability and support of a hybrid on-premise and cloud infrastructure. Key Skills Experience of working on M&A projects Demonstrate extensive experience working as a cloud/infrastructure engineer/senior engineer or in similar IT roles. Hands on experience of having performed Exchange migrations between organisations or M365 migrations between tenants. Hands on experience of having performed migrations of Windows Servers to Azure IaaS. Extensive experience working with multi-site and multi forest Active Directory environments, group policy and DNS. Extensive experience working with common Microsoft cloud technologies such as Azure , M365, Azure AD & Intune. Extensive...

C++ Software Engineer – Low‑Latency Trading Contract - OUTSIDE IR35 Rate - Dependent on skills London - Hybrid working 50% in office. You'll be joining a high‑performance trading technology firm. Helping to building ultra‑low‑latency systems powering global electronic markets. Working alongside world‑class engineers solving complex challenges across C++, Linux, networking, and hardware‑accelerated trading pipelines. What You'll Do Build and optimise high‑performance, low‑latency C++ applications Develop real‑time systems interacting directly with global exchanges Work closely with FPGA, network, and infrastructure teams Improve latency, throughput, and reliability across mission‑critical systems Contribute to performance tuning, profiling, and code reviews Skills required Exceptional modern C++ (C++17/20) development experience Strong Linux systems knowledge and debugging skills Experience in low‑latency, multithreaded or high‑performance environments...

Cloud Platform Engineer - Azure - ENTRA ID - UK CNI - OUTSIDE IR35 Tecknuovo is a digital technology consultancy with a Deliberately Different approach. This means we focus on people, not technology. We move at pace and ensure Zero Dependency on us at the end of each project. What you'll be working towards We are currently looking to engage with an experienced Cloud Platform Architect for an immediate start with a large UK utilities body. This is a large scale critical infrastructure project, starting with an initial 6 month contract. About You Lead the design of a dedicated Azure tenancy to support the CNI-grade Privileged Access Workstation (PAW) platform. Define the full identity architecture, including MFA, Conditional Access, PIM and Tier-0 aligned privileged access controls. Design end-to-end authentication and connectivity flows, covering Entra ID ? MFA ? token validation ? P2S VPN ? secure CNI access. Architect secure Azure networking patterns,...

Infrastructure Engineer - Outside IR35 - Up to £600 per day - SC Cleared - Minimum 3 days on-site per week in Milton Keynes Area We're an independent digital transformation consultancy with clients across public and private sectors. We help our clients solve complex technical problems and provide human-centred solutions that lead to positive outcomes. We do this with multidisciplinary teams of strategists, architects, developers, designers and analysts working closely alongside client stakeholders and end users. The Role We are looking for an experienced Infrastructure Engineer to join our team here at Solirius. You will be working as part of a team, developing and delivering exciting projects with a fantastic team of technology experts. You will be a fundamental part of the team and will be an expert in your field/specialism. Requirements Proven hands-on experience managing and supporting VMware enterprise platforms, including VMware SDDC Manager, NSX,...

Network Infrastructure Programme Manager 12-Month Contract | £700-£800 per day (Outside IR35) | London (Primary Location) | Major European Expansion Programme A globally recognised technology organisation - already operating large-scale autonomous transport services across multiple US cities - is expanding into Europe. With successful operations established in cities such as San Francisco and Los Angeles , the business is now launching its European footprint, beginning with London , followed by Berlin and Madrid . London is the primary and most critical launch market. This is a long-term contract opportunity to play a key role in building the network infrastructure that underpins a highly visible, city-scale technology rollout. The Role: Reporting to a Network Delivery Lead, you will own the end-to-end planning and execution of multi-site network buildouts across operational sites, offices and data centre environments. This is a delivery-critical role...

Position: Telecoms Consultant Location: Leatherhead – 5 days in the office Rate: Outside IR35 DOE Duration: 6 months Project: Major Middle East Oil & Gas Development Overview We are seeking an experienced Telecoms Engineer to support the design and delivery of complex telecommunications systems for a major onshore oil and gas project. The role involves developing technical specifications, preparing documentation, and performing evaluations for a range of telecom systems. Key Systems LAN/WAN networks Fibre optic cable systems CCTV systems Access control systems Public Address General Alarm (PAGA) systems PABX and hotline systems Wireless, microwave, and TMR radio systems Perimeter/fence intrusion detection systems Key Responsibilities Ensure safety, reliability, and quality standards are met across all telecom systems. Produce block diagrams, schematic diagrams, cable schedules, datasheets, interconnection/wiring diagrams,...