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Are you an experienced Network Engineer ready to take ownership of complex, secure network environments? Sopra Steria is delivering a unique solution from the ground up for the Defence sector, integrating infrastructure and applications within highly secure, mission-critical environments. This is an opportunity to make a genuine impact, contribute to complex technical solutions, and work on a nationally significant programme that few organisations can offer exposure to. For someone motivated by purpose, scale, and technical complexity, this role offers the chance to see your work directly contribute to outcomes that really matter. This role requires full-time, on-site working in Hertfordshire. What you will be doing: • Deliver expert L2/L3 support for a complex, multi-site enterprise network, resolving incidents and minimising service disruption., • Configure and maintain Cisco network infrastructure, including switches, routers, and core connectivity services., • Support and optimise F5 application delivery and load balancing platforms to ensure availability, performance, and resilience., • Administer Fortinet firewalls and security services, including policy management, VPN configuration, and security compliance changes., • Execute planned network changes, upgrades, and site deployments while adhering to change control and security standards., • Strong knowledge of Cisco routing and switching., • Experience with Cisco firewalls, including Firepower., • Experience with Fortinet technologies., • Active MoD DV clearance, or active SC clearance with willingness to undergo DV clearance., • Strong troubleshooting skills across complex enterprise network environments., • Exposure to F5 and wider network security or DDoS-related tooling., • Cisco certifications, such as CCNA or CCNP. Employment Type: Permanent Location: Hertfordshire Security Clearance Level: Eligible for Developed Vetting (DV) Internal Recruiter: Josh Salary: Competitive, based on experience Benefits: 25 days annual leave with the choice to buy extra days, life assurance, and 6% pension If you’re interested and need to work flexibly, we encourage you to apply and talk to us about what might be possible. Loved reading about this job and want to know more about us? Sopra Steria’s Aerospace, Defence and Security business designs, develops and deploys digital solutions to Central Government clients. The work we do makes a real difference to the client’s goal of National Security, and we operate in a unique and privileged environment. We are given time for professional development activities, and we coach and mentor our colleagues, sharing knowledge and learning from each other. We foster a culture in which employees feel valued and supported and have pride in their work for the customer, delivering outstanding rates of customer satisfaction in the UK’s most complex safety- and security-critical markets.

Lead Network Engineer (DV Cleared) Security Clearance: Must hold active DV Clearance We are seeking an experienced Lead Network Engineer to join a high-performing team delivering critical infrastructure solutions within a secure environment. This is a senior, hands-on role suited to an individual with deep technical expertise and strong leadership capability. Key Responsibilities • Lead the design, implementation, and support of secure network solutions, • Produce low-level designs (LLD) to a production-ready standard, • Act as the technical authority across network infrastructure and security domains, • Own and drive complex delivery workstreams within secure programmes, • Provide mentoring and technical leadership to engineering teams, • Ensure all solutions meet stringent security and compliance requirements Required Skills & Experience • Active DV Clearance (essential), • Strong expertise in Cisco networking technologies (routing, switching, firewalls), • Proven experience with F5 (LTM, GTM, ASM desirable), • Solid understanding of cryptographic technologies and secure communications, • Extensive experience producing Low-Level Designs (LLD) for production environments, • Demonstrable experie...

Rendesco is the UK's leading heat pump and heat network business. We design, build, fund, own and operate heat networks and heat pump systems that help to decarbonise our homes. Our unique low cost and low carbon heat solutions make it possible for new-build developers, social housing providers and homeowners to switch away from gas quickly, affordably and at scale. We have an ambitious five year plan to become the UK's leading end-to-end low carbon heating platform - combining funded heat network ownership, market leading design and installation capability, a growing operations and maintenance business, and a proprietary technology stack including our own ground source heat pump, heat interface unit, smart controller and homeowner app. Decarbonisation should be easy, and at Rendesco, we make it effortless. About the role As our Commissioning Engineer, you will play a pivotal role in ensuring the optimal performance of our low-carbon heat pump systems under the supervision and guidance of our Senior Commissioning Engineer. This position demands a blend of technical understanding and meticulous quality control to ensure that every installation functions seamlessly and meets our high standards. Your primary responsibilities will revolve around the closeout of M&E snagging, Pre-commissioning and getting our systems live. You will be expected to be conducting thorough quality control and managing all necessary documentation. You will also undertake the commissioning process, ensuring each system operates as intended and meets our high standards. A significant part of your role involves collaborating closely with installation teams, contractors, and other stakeholders to facilitate smooth and successful commissioning. As our Commissioning Engineer, you will be instrumental in the final stages of delivering our low-carbon heat systems. Your key responsibilities will encompass a range of tasks to ensure the optimal performance and reliability of our installations including completing the final wiring and setup of heat pump systems including circulation pumps and associated plant, ensuring adherence to design specifications and safety standards. Location With exciting projects taking place across England, the ideal candidate will be based in central England and demonstrate a willingness to travel (all expenses covered). Candidates located in the Central locations such as Hertfordshire, Bedfordshire or surrounding areas would be particularly well-suited for this role. About you • Demonstratable professional electrical experience primarily in commercial installations., • Comprehensive understanding and experience in electrical wiring, safety standards, and BS7671 regulations., • NVQ level 3 in building services or HVAC sector., • Completion of the 18th Edition update to wiring regulations., • Proficiency and experience in testing to BS2391 and a strong technical understanding of various heating systems and plant, controls, and both three-phase and single-phase power., • A basic understanding of the principles of refrigeration systems., • Understanding the principles of how to undertake commissioning of complex systems, with a focus on quality control and system optimisation., • Proven ability to work both autonomously and as part of a team, with a keen eye for detail and a methodical approach to tasks., • Record all installation/ commissioning activities in appropriate certification forms and in SimPRO (our scheduling and QAQC system). What's in it for you? • Generous salary, • Overtime (payable after first 9 hours, daily), • Private Medical Insurance after 6 months service., • £30 monthly contribution to mobile phone contract, • Electric Vehicle and Cycle to Work salary sacrifice schemes., • 25 days annual leave (exc bank holidays), • Flexible and pragmatic management team, • Participation in wider company benefits from time to time Apply today, and help us make decarbonisation effortless. At Rendesco, we are committed to building an inclusive workplace. We are proud to be a Disability Confident Employer and an equal opportunity employer, who encourages applicants from all backgrounds to apply.

DV Cleared Network Engineer? Ready for a more meaningful challenge? Join a mission‑critical defence programme delivering a secure, ground‑up network across complex, multi‑site environments. Senior Network Engineer (DV Cleared). Provide L2/L3 network support across a complex environment.

A global sports entertainment company based in London is seeking a Senior Network Engineer to design, build, and maintain complex transmission infrastructures.

A leading technology firm in the United Kingdom is seeking a Network Engineer for a permanent role. In this position, you will provide L2/L3 support for a multi-site enterprise network, configure Cisco infrastructure, and manage application delivery platforms.

A leading enterprise connectivity company is seeking a Senior Network Support Engineer to resolve complex data network faults.

A leading sports marketing agency in London is seeking a Senior Network Engineer to take ownership of their core networking infrastructure, implementing strategic automation and ensuring network security.

Senior Network Support Engineer | Cisco. Proven experience in data network engineering, network service assurance, or a comparable 3rd line technical role. Collaborate with service desk and engineering teams to elevate and close incidents effectively.

3rd Line Cloud Engineer - Azure Akkodis are currently working in partnership with a market leading service provider to recruit a number of 3rd Line Cloud Engineers to join their growing support team. The Role As a 3rd Line Cloud Engineer you will support and deliver Azure platform services for enterprise customers. The role focuses on the operational management of Azure environments, working closely with internal teams and customers to maintain, improve, and support production cloud infrastructures. As an Azure Cloud Engineer you will have strong hands-on experience with Azure services, a proven background supporting large corporate environments, and the ability to operate effectively within an agile, service-oriented team. This role involves contributing to platform stability, implementing continuous improvements, and ensuring reliable, high-quality support for enterprise-scale Azure infrastructure while collaborating closely with senior team members and stakeholders. The Responsibilities Perform root cause analysis, investigation, diagnosis, and reporting of cloud-related issues. Monitor and optimize Azure environments to ensure high availability, performance, and security. Troubleshoot and resolve build, deployment, and infrastructure issues. Ensure compliance with industry standards and best practices for security, scalability, and reliability. Create and maintain detailed documentation for processes, configurations, and procedures. Develop and maintain scripts for automation using PowerShell. Participate in on-call support outside business hours (additional compensation provided). The Requirements Hands on experience managing Azure environments across multiple subscriptions and regions. Strong expertise in Azure IaaS services (Compute, Storage & Networking). Experience with Azure networking: VNets, Subnets, NSGs, Route Tables, Network Interfaces. Knowledge of hybrid connectivity including ExpressRoute and VNet Gateways. Experience with load balancing and traffic management (Azure Load Balancer, Traffic Manager). Hands-on experience with Azure Storage Accounts, Snapshots, and Backup/Recovery Services Vaults. Working knowledge of Azure Key Vault, Certificates, Managed Identities, and App Registrations. Experience implementing private connectivity using Private Endpoints and Private DNS Zones. Exposure to Azure Kubernetes Service (AKS) and containerised workloads. Experience managing Azure ARC-enabled resources in hybrid environments. If you're keen to join a highly successful and growing cloud support team please apply now. Modis International Ltd acts as an employment agency for permanent recruitment and an employment business for the supply of temporary workers in the UK. Modis Europe Ltd provide a variety of international solutions that connect clients to the best talent in the world. For all positions based in Switzerland, Modis Europe Ltd works with its licensed Swiss partner Accurity GmbH to ensure that candidate applications are handled in accordance with Swiss law. Both Modis International Ltd and Modis Europe Ltd are Equal Opportunities Employers. By applying for this role your details will be submitted to Modis International Ltd and/ or Modis Europe Ltd. Our Candidate Privacy Information Statement which explains how we will use your information is available on the Modis website

Contract Maintenance Engineer - Hatfield Hertfordshire (Outside IR35) Rate: £38ph - £40ph Outside IR35 LTD Hours: 8-hour shifts - Monday to Friday and overtime 6-2, 2-10 and 10-6 Length: 6 months Start: ASAP About the Role We're looking for an experienced Contract Maintenance Engineer to join a manufacturer in Hatfield. This is a hands-on a contract where you'll keep high-speed production lines running smoothly in a modern, well-invested site. Why Apply? Outside IR35 6 month contract Supportive team with great feedback from current engineersKey Duties Preventive and reactive maintenance of machinery Mechanical/electrical fault finding and repairs Work on conveyors and automated production equipment Minimise downtime and support continuous improvementWhat We're Looking For Mechanical or Electrical qualification (Apprenticeship / NVQ / C&G) Hands-on experience as a Maintenance Engineer in manufacturing Multi-skilled preferred (mechanical & electrical) Ability to use initiative in a fast-paced environmentApply Now If this Maintenance Engineer role sounds right for you, contact Simon on (phone number removed) or email (url removed). Commutable from Hatfield, St Albans, Bedford, Stevenage, Welwyn Garden City, Hertford, Bishop Stortford, Standsted, Letchworth, Luton, Biggleswade, Watford, Potters Bar, Enfield, Harlow, Cheshunt, Hoddesdon, Borehamwood, Epping, Bedford, other parts of London, Hertfordshire, Cambridgeshire, Bedfordshire, and Essex Proactive (About Us) We specialise in FMCG Manufacturing, Food & Beverage Manufacturing, Pharmaceuticals Manufacturing, Automation and Machinery OEMs & System Integrators. Our FMCG division is structured into niche specialist teams across Engineering, Operations (Technical & Production), Projects, and Senior Appointments. With a network of offices in the City of London, West London, Leeds, Milton Keynes, Birmingham, and an international reach, Proactive supplies both permanent and contract workforce's to clients nationwide. Backed by a proven track record of successful partnerships, we understand the challenges you face and work closely with you to ensure the right fit for every role Proactive Global is committed to equality in the workplace and is an equal opportunity employer. Proactive Global is acting as an Employment Business in relation to this vacancy

DV Cleared Monitoring Engineer Hemel Hempstead (Onsite) Up to £800 per day (Inside IR35) DV Clearance Required (MOD Environment) Are you an experienced Monitoring Engineer with strong infrastructure expertise and DV clearance? We're looking for a skilled professional to join a high-profile MOD programme, taking ownership of monitoring operations and leading a technical team within a secure environment. This is a key role where you'll combine hands-on engineering, leadership, and strategic input to drive operational excellence and support critical systems. What You'll Be Doing Leading day-to-day operations of the Windows/Infrastructure team Managing and optimising monitoring tools such as SCOM and PRTG Designing and configuring dashboards for network and system monitoring Supporting project delivery including solution design, estimation, and implementation Ensuring SLA compliance through effective incident response and escalation Mentoring engineers and building SME capability within the team Collaborating with architects and stakeholders to shape technical solutions Producing and maintaining high-quality technical documentation What We're Looking For Strong experience in enterprise infrastructure environments Proven expertise with SCOM, PRTG, and network/device monitoring Experience leading teams or acting as a senior technical specialist Solid understanding of SLA-driven environments and governance frameworks Background in project delivery (PRINCE2, PMI or similar) Excellent troubleshooting, documentation, and stakeholder communication skills Desirable Skills MCSE (or equivalent certification) ITIL Foundation Experience working in customer-facing or secure government environments If this Monitoring Engineer role is of interest, apply now or email your application to me at TPBN1_UKTJ

DV Cleared Monitoring Engineer Hemel Hempstead (Onsite) Up to £800 per day (Inside IR35) DV Clearance Required (MOD Environment) Are you an experienced Monitoring Engineer with strong infrastructure expertise and DV clearance? We're looking for a skilled professional to join a high-profile MOD programme, taking ownership of monitoring operations and leading a technical team within a secure environment. This is a key role where you'll combine hands-on engineering, leadership, and strategic input to drive operational excellence and support critical systems. What You'll Be Doing Leading day-to-day operations of the Windows/Infrastructure team Managing and optimising monitoring tools such as SCOM and PRTG Designing and configuring dashboards for network and system monitoring Supporting project delivery including solution design, estimation, and implementation Ensuring SLA compliance through effective incident response and escalation Mentoring engineers and building SME capability within the team Collaborating with architects and stakeholders to shape technical solutions Producing and maintaining high-quality technical documentation What We're Looking For Strong experience in enterprise infrastructure environments Proven expertise with SCOM, PRTG, and network/device monitoring Experience leading teams or acting as a senior technical specialist Solid understanding of SLA-driven environments and governance frameworks Background in project delivery (PRINCE2, PMI or similar) Excellent troubleshooting, documentation, and stakeholder communication skills Desirable Skills MCSE (or equivalent certification) ITIL Foundation Experience working in customer-facing or secure government environments If this Monitoring Engineer role is of interest, apply now or email your application to me at (url removed)

This nationwide Building Structures Engineering consultancy have recently established a London office and are now seeking a Principal / Associate level Structural Engineer to join their team. Experienced developing Structural/Civil Engineering designs for projects through various project stages auto

Job Title: Senior Network Security Engineer. The product combines a plug‑and‑protect network device, a mobile app and a unified portal to deliver enterprise-grade continuous network monitoring, automated vulnerability detection and AI-guided remediation. This is a senior role in a small team so

Insight Global are seeking a self-motivated, highly experienced Senior Network Engineer to be responsible for the design, implementation, management, and optimisation of customer network environments, with a strong focus on network security and high availability. The ideal candidate will bring hands

We are proud to be supporting a fast-growing technology company at the forefront of satellite and cloud infrastructure in their search for a Senior Network Engineer. Our client is seeking a Senior Network Engineer with strong technical fundamentals and a genuine passion for solving complex infrastru

Senior structural design engineer (heritage) £55,000 - £65,000 + Bonus + Benefits. They are seeking a Structural Engineer with experience in heritage, restoration, or conservation work to join their growing team and work with their high profile clients and projects. Degree in Civil or Structural E

You and your role As a Senior Network Engineer, youll play a key role in leading and supporting a team of infrastructure engineers, helping shape and deliver network and infrastructure solutions that align with wider IT and departmental goals. We are looking for outstanding Senior Network Engineers

Key Responsibilities: Leading the design, implementation and support of enterprise-grade solutions across one or more technology domains Taking ownership of complex technical deliverables, ensuring quality, performance, and alignment with architectural and strategic standards Providing technical lea

As a senior network engineer, you will be a key member of our Core Infrastructure Services team and play a vital role in managing our global network infrastructure. Implementing and maintaining network policies, as well as conducting network audits and risk assessments. CCNP-level networking knowled

As a Senior Network Engineer at CGI, you will play a pivotal role in safeguarding and advancing the networks that power our clients’ most critical missions. This role offers the chance to take meaningful ownership of complex challenges, collaborate with expert teams, and apply your creativity to d

Consilio LLC is looking for a Senior Network Engineer to manage and enhance our global network infrastructure in a hybrid role based in London. Join our team to support a global 24x7 operation and work on exciting networking projects. Candidates should have at least 5 years of experience, strong kno

A leading international financial services firm is seeking a Senior Network Engineer to provide technical ownership of vital IT systems across EMEA and North America. The role demands strong project management skills and the ability to maintain network stability while implementing new solutions. Wit

A leading healthcare provider in Greater London seeks a Senior Infrastructure Engineer (Network) to manage and deliver high-performing digital infrastructure across its sites. The role involves supervising engineers, resolving complex technical issues, and collaborating with various stakeholders to

Senior Network Engineer, Cingularity page is loaded## Senior Network Engineer, Cingularitylocations: London - Hanbury Sttime type: Full timeposted on: Posted Todayjob requisition id: R0007468Who We Are:IMG is a leading global sports marketing agency, specializing in media rights manageme

Senior Infrastructure Engineer (Network). The Senior Infrastructure Engineer (Network) at Croydon Health Services NHS Trust is responsible for:. Leading and supporting technical projects, contributing specialist expertise in server, networking, telecoms, or architecture domains.

An exciting opportunity has arisen for a Network Engineer to join a forward-thinking digital services team. This permanent role offers a competitive salary, with the chance to make a real impact on the build, maintenance, and evolution of network infrastructure supporting critical services. Support,

Senior Network Engineer to design, implement, and maintain secure and scalable network solutions in Bedford, United Kingdom. Candidates should have proven experience as a Senior Network Engineer along with relevant certifications. This full-time position offers a hybrid work environment with respons

Morson Edge (Financial Services) is seeking a Senior Network Observability Engineer to join their London office on a contract basis. The role focuses on supporting mission-critical, low-latency trading platforms by designing network observability platforms and building automated workflows. Key quali

Network Security Engineer skilled in Zscaler or equivalent SASE/SSE technologies to navigate complex environments. Ideal candidates will possess a strong networking background, security mindset, and excellent communication skills to engage with non-technical stakeholders.

The role is 80% project-based, focused on network architecture, delivery, and security improvements, with the remaining 20% covering ongoing network management and optimisation. Designing and implementing improvements across a software-defined network using internet connectivity. Producing and maint

A prominent media organization in Greater London is seeking a Senior Systems Engineer who will ensure the stability and performance of its IT infrastructure.

We are looking for a Senior Network Engineer to join our IT team, playing a key role in maintaining and enhancing our global network infrastructure. Analyse and resolve alerts from Security Events, Information Management tools, Network Behaviour Analytics, and network monitoring incidents. Be the fo

A leading financial services company in Greater London is seeking a skilled Network Support Engineer to manage network-related incidents and provide project support. The role includes maintaining network data diagrams and coordinating with various teams. Ideal candidates should possess robust networ

Europe Arab Bank is seeking a Network Security Engineer in the Greater London area to progress into a specialist cyber security role. The ideal candidate will have proven networking and cyber security skills, including experience with Cisco devices and Palo Alto firewalls, as well as knowledge of in

A leading mobility solutions provider is looking for a Senior Revenue Engineer to design and implement pricing infrastructure and systems. The ideal candidate has over 5 years of backend engineering experience, expertise in PHP and Laravel, alongside strong skills in Python and SQL.

Network Manager / Senior Network Engineer to oversee UK network operations while contributing to the broader European backbone. You'll ensure the resilience and performance of the UK network infrastructure, mentor engineers, and handle complex incident resolutions. Candidates should have extensive e

A leading engineering firm in the United Kingdom is seeking an experienced Senior Surface Water Management Engineer to develop drainage design solutions.

Vodafone is looking for a Senior Network Development Engineer in Greater London. The candidate will be responsible for designing, deploying, and supporting network fabric in both Data Center and Cloud environments. A Master's or Bachelor's degree in a related field is required, along with over 7 yea

A global technology company is seeking a Senior Network Engineer to design and manage a large-scale Cisco-based enterprise network. This role involves mentoring engineers and leading complex initiatives while ensuring network stability.

Hamilton Barnes Associates Limited is seeking an experienced network engineer to plan and execute the migration of network infrastructure from on-prem Cisco environments to AWS. The role requires at least 6 years of experience in Cisco/Juniper networking, strong routing and switching skills, and fam

Senior Network Test Engineer – Wireless, Broadband & IP in London. The role involves advanced testing across 5G/LTE, Wi-Fi, and broadband/IP networking, with hands-on experience in testing radio networks, IP connectivity, and customer-premises equipment.

Design, support, and enhance enterprise network infrastructure. Work across WAN connectivity, campus networks, and cloud integrations. Operate in a hands‑on, senior technical capacity with real ownership.

Hunter Bond is seeking a talented Network Security Engineer to join their team in London.