19 network infrastructure engineer jobs found

Network Infrastructure Engineer (Contract) Location: Newport (on-site / hybrid as required) Contract: 12 months Rate: £600 per day IR35: Outside IR35 Overview We're looking for a hands-on Network Infrastructure Engineer to support and maintain a secure enterprise LAN environment. This is a delivery-focused role suited to someone operating around CCNA / CCNP level , comfortable working across network security, access control, and core LAN services.     Requirements   Support and maintain LAN infrastructure in a secure enterprise environment Configure and troubleshoot firewalls and proxy services Operate and support Network Access Control (NAC) using Cisco ISE Manage remote access solutions (Cisco VPN / AAA) Support DDI services (DNS, DHCP, IPAM), ideally using EfficientIP Investigate incidents, implement fixes, and support ongoing network improvements Maintain documentation and follow...

Location:  London –  4 days onsite Contract:  6-month rolling contract Rate:  £300 - £320 per day  (PAYE) Key Responsibilities Provide  on-site and remote IT support  to front-office trading floor users, ensuring minimal disruption to trading activities. Troubleshoot  hardware, software, and connectivity issues  across desktops, laptops, and trading peripherals. Support and maintain  trading technologies , including market data platforms and trading applications. Manage  Windows 10/11 environments , including desktop builds, OS upgrades, migrations, and deployments. Support  multi-monitor trading desk setups...

JOB DETAILS Minimum years of experience: 5+ years Job Description: The ideal candidate will have extensive experience with Windows Administration, SCCM (System Center Configuration Manager) for Windows deployments and a strong understanding of Active Directory, including Group Policy Objects (GPOs). Key Responsibilities: 1. Manage and maintain Windows server environments. 2. Perform deployments using SCCM, ensuring smooth and efficient updates and installations. 3. Administer Active Directory, including the creation and management of GPOs. 4. Troubleshoot and resolve issues related to Windows servers, SCCM, and Active Directory. 5.Monitor system performance and ensure the security and integrity of the network. 6.Collaborate with other IT team members to support overall IT infrastructure. Requirements: - Proven experience as a Windows Administrator. - Proficiency in SCCM for Windows deployments. - Strong knowledge of Active Directory and GPOs. - Excellent troubleshooting and...

About Huawei Research and Development UK Limited Founded in 1987, Huawei is a leading global provider of information and communications technology (ICT) infrastructure and smart devices. We have 207,000 employees and operate in over 170 countries and regions, serving more than three billion people around the world. Our vision and mission is to bring digital to every person, home and organization for a fully connected, intelligent world. To this end, we will drive ubiquitous connectivity and promote equal access to networks; bring cloud and artificial intelligence to all four corners of the earth to provide superior computing power where you need it, when you need it; build digital platforms to help all industries and organizations become more agile, efficient, and dynamic; redefine user experience with AI, making it more personalized for people in all aspects of their life, whether they’re at home, in the office, or on the go. This spirit of innovation has...

Who are we: In 2019, our founders were working as engineers  solving complex cross domain problems within government organisations TwinStream was formed to consolidate their collective expertise and experience into one business, providing technical excellence and exceptional service to their clients. We have teams working both on-site with clients and remotely from home.   Day Rate: £500 - £650 Location: Hybrid working in Cheltenham (3-4 days) with possible 24/7 call out when on rota   Security Clearance: Must have live DV Clearance      About the role:   Our cross-domain services are used in high-profile government organisations. The demand for these services continues to grow in both scope and scale. We are seeking an experienced Site Reliability Engineer to help satisfy that demand. As an SRE you will be responsible for ensuring the availability, performance and cost effectiveness...

About Huawei Research and Development UK Limited Founded in 1987, Huawei is a leading global provider of information and communications technology (ICT) infrastructure and smart devices. We have 207,000 employees and operate in over 170 countries and regions, serving more than three billion people around the world. Our vision and mission is to bring digital to every person, home and organization for a fully connected, intelligent world. To this end, we will drive ubiquitous connectivity and promote equal access to networks; bring cloud and artificial intelligence to all four corners of the earth to provide superior computing power where you need it, when you need it; build digital platforms to help all industries and organizations become more agile, efficient, and dynamic; redefine user experience with AI, making it more personalized for people in all aspects of their life, whether they’re at home, in the office, or on the go. This spirit of innovation has...

Sword is a leading provider of business technology solutions within the Energy, Public and Finance Sectors, driving transformational change within our clients. We use proven technology, specialist teams and domain expertise to build solid technical foundations across platforms, data, and business applications. We have a passion for using technology to solve business problems, working in partnership with our clients to help in achieving their goals.   About The Role   We're looking for a Senior Network Engineer with deep technical expertise and a passion for solving complex problems to join us on a contract basis. You'll play a pivotal role in our Managed Services team, supporting critical infrastructure and leading the design, deployment, and troubleshooting of network and security solutions.   This is a hands-on role for someone who thrives in dynamic environments, brings a methodical approach to problem-solving, and is confident working...

ASE_Platform_Engineer   🚨 We’re Hiring: Senior Platform Engineer (Prototype) 📍 Remote / Flexible ⏳ 3-Month Contract (Part-Time Negotiable) 🏢 The Hacking Games   Most security data platforms make the same trade-off: Normalise early. Lose fidelity. Query fast. We’re building something that refuses that trade-off.   The architecture is defined. We need a senior engineer to build it, someone who understands why the trade-offs most platforms accept are actually the source of their limitations.   You’ll work at the intersection of: Systems programming Data engineering Security telemetry Behavioural analysis AI-assisted development (Claude Code) is mandatory and central to the workflow. This is build-to-learn engineering, producing a defensible, investor-ready demonstrator.   🔧 What You’ll Build (Prototype Scope): High-fidelity telemetry ingestion (host,...

JOB DETAILS Minimum years of experience: 5+ years Job Description: The ideal candidate will have extensive experience with Windows Administration, SCCM (System Center Configuration Manager) for Windows deployments and a strong understanding of Active Directory, including Group Policy Objects (GPOs). Key Responsibilities: 1. Manage and maintain Windows server environments. 2. Perform deployments using SCCM, ensuring smooth and efficient updates and installations. 3. Administer Active Directory, including the creation and management of GPOs. 4. Troubleshoot and resolve issues related to Windows servers, SCCM, and Active Directory. 5.Monitor system performance and ensure the security and integrity of the network. 6.Collaborate with other IT team members to support overall IT infrastructure. Requirements: - Proven experience as a Windows Administrator. - Proficiency in SCCM for Windows deployments. - Strong knowledge of Active Directory and GPOs. - Excellent troubleshooting and...

Job Overview We are seeking an experienced Cloud Engineer specialised in Azure to join our team on a 3-month contract basis. We've proven our concept and now need to scale. You'll take our existing MVP Azure infrastructure and re-architect it into a production-grade platform capable of meeting enterprise security requirements, SLA commitments, and the scrutiny of enterprise customer audits. Key Responsibilities Architecture & Infrastructure Redesign Azure architecture for medium enterprise scale, reliability, and security Design and deploy high-availability, fault-tolerant infrastructure with appropriate redundancy Establish disaster recovery and business continuity procedures Define and document the target architecture for long-term team ownership Harden security posture to meet medium enterprise customer requirements Implement Azure security best practices (Key Vault, Managed Identities, RBAC, Private Endpoints) Configure network...

About the role: We are looking for a Senior Oracle DBA to join DWP's HCS Database Platforms team. This team supports the database services that underpin some of the most critical systems in the UK, directly affecting the daily lives of millions of citizens. You'll support and enhance DWP's mission critical Oracle database platforms, including on prem and Oracle Cloud Infrastructure (OCI). You'll be working alongside highly skilled Database Specialists and Engineers who ensure DWP services are designed, delivered and maintained to high standards, using agile methods and robust engineering practices.   As a Senior Oracle DBA your main responsibilities will be: Supporting highly available Oracle databases across Linux and AIX environments. Managing Oracle RAC, ASM, AFD, HANFS, and TAF. Implementing, automating and maintaining HA/DR solutions including Data Guard. Performing patching, upgrades, performance tuning and resilience improvements....

About the role: We are looking for a Senior Oracle DBA to join DWP's HCS Database Platforms team. This team supports the database services that underpin some of the most critical systems in the UK, directly affecting the daily lives of millions of citizens. You'll support and enhance DWP's mission critical Oracle database platforms, including on prem and Oracle Cloud Infrastructure (OCI). You'll be working alongside highly skilled Database Specialists and Engineers who ensure DWP services are designed, delivered and maintained to high standards, using agile methods and robust engineering practices.   As a Senior Oracle DBA your main responsibilities will be: Supporting highly available Oracle databases across Linux and AIX environments. Managing Oracle RAC, ASM, AFD, HANFS, and TAF. Implementing, automating and maintaining HA/DR solutions including Data Guard. Performing patching, upgrades, performance tuning and resilience improvements....

About the role: We are looking for a Senior Oracle DBA to join DWP's HCS Database Platforms team. This team supports the database services that underpin some of the most critical systems in the UK, directly affecting the daily lives of millions of citizens. You'll support and enhance DWP's mission critical Oracle database platforms, including on prem and Oracle Cloud Infrastructure (OCI). You'll be working alongside highly skilled Database Specialists and Engineers who ensure DWP services are designed, delivered and maintained to high standards, using agile methods and robust engineering practices.   As a Senior Oracle DBA your main responsibilities will be: Supporting highly available Oracle databases across Linux and AIX environments. Managing Oracle RAC, ASM, AFD, HANFS, and TAF. Implementing, automating and maintaining HA/DR solutions including Data Guard. Performing patching, upgrades, performance tuning and resilience improvements....

Job Title: Microsoft Active Directory / Entra ID Engineer Role type: Contract (12 months) Department: Core Infra IAM Location: London (Hybrid)   Company overview: Nomura is a global financial services group with an integrated network spanning approximately 30 countries and regions. By connecting markets East & West, Nomura services the needs of individuals, institutions, corporates and governments through its three business divisions: Wealth Management, Investment Management, and Wholesale (Global Markets and Investment Banking). Founded in 1925, the firm is built on a tradition of disciplined entrepreneurship, serving clients with creative solutions and considered thought leadership. For further information about Nomura, visit www.nomura.com Department Overview: We are seeking an experienced Microsoft Active Directory / Entra ID Engineer to join our Core Infrastructure IAM team within Identity & Access Technology Services. This role involves...

Role: Windows 11 Migration Engineer Location: London Contract Duration: 6 months Key Essential Skills Proven experience supporting Windows 10 to Windows 11 migration projects Strong background working in a regulated financial environment (banking, trading, investment operations, etc.) Experience with troubleshooting and resolving migration-related technical issues Ability to support end users through transition activities, including familiarisation with the new Windows 11 look and feel Hands-on experience with Active Directory, including password resets, account updates, and access group management Confident with Microsoft 365 administration and basic mailbox/user configuration Strong understanding of device configuration, OS builds, profile migration, and application validation Ability to log, triage, and escalate issues effectively with clear documentation Able to take accountability and ownership of a project or additional work that...

Network Consultant London, UK Contract(Inside IR35) Knowledge, skills, and abilities A solid network/security/cloud engineer with a strong focus on cloud hosted environments within AWS and Azure as well as excellent skills in firewall deployment, routing and switching. In-depth knowledge of design, implementation, configuration and testing of the following: Routing – OSPF, BGP, knowledge of route redistribution and manipulation. WAN - MPLS, Internet, VPN, SDWAN, understanding of circuit commissioning. Datacenter – ACI spine and leaf, APIC, VxLAN and distribution switching. Encryption - IPsec VPN, MACSec, configuring site-to-site VPN on routers and firewalls. Switching and L3 - HSRP, VRRP, GBLP, NTP, STP, RSTP, QoS, CoS, SVI, VLAN’s, ACL’s. WiFi – Cisco Meraki and Cisco Wireless LAN controllers with Lightweight APs. Firewalls – Cisco ASA/FirePOWER, Conversion from ASA code to Firepower, Checkpoint, Fortigate, ACL’s, CSM/FMC. Job purpose Provide last...

JOB DETAILS Minimum years of experience: 5+ years Job Description: The ideal candidate will have extensive experience with Windows Administration, SCCM (System Center Configuration Manager) for Windows deployments and a strong understanding of Active Directory, including Group Policy Objects (GPOs). Key Responsibilities: 1. Manage and maintain Windows server environments. 2. Perform deployments using SCCM, ensuring smooth and efficient updates and installations. 3. Administer Active Directory, including the creation and management of GPOs. 4. Troubleshoot and resolve issues related to Windows servers, SCCM, and Active Directory. 5.Monitor system performance and ensure the security and integrity of the network. 6.Collaborate with other IT team members to support overall IT infrastructure. Requirements: - Proven experience as a Windows Administrator. - Proficiency in SCCM for Windows deployments. - Strong knowledge of Active Directory and GPOs. - Excellent troubleshooting and...

IKM Network Communications Ltd is a leading provider of network infrastructure services. We’re looking for self-employed Data Cabling Engineers , including junior or newly qualified engineers , to support projects across Cardiff and surrounding areas . You will work across a variety of sites including offices, hospitals and universities installing and testing structured cabling systems. This role would suit someone reliable who can work independently or as part of a small team. This is a contractor role (not permanent employment) . Contractors must operate as a limited company or sole trader and provide their own transport, tools, PPE and insurance. Contractors are responsible for their own tax and National Insurance obligations. Due to the nature of some sites, work is subject to a satisfactory DBS (Disclosure and Barring Service) check , which IKM will arrange and pay for. Key Responsibilities Install, terminate and test structured...

About Huawei Research and Development UK Limited Founded in 1987, Huawei is a leading global provider of information and communications technology (ICT) infrastructure and smart devices. We have 207,000 employees and operate in over 170 countries and regions, serving more than three billion people around the world. Our vision and mission is to bring digital to every person, home and organization for a fully connected, intelligent world. To this end, we will drive ubiquitous connectivity and promote equal access to networks; bring cloud and artificial intelligence to all four corners of the earth to provide superior computing power where you need it, when you need it; build digital platforms to help all industries and organizations become more agile, efficient, and dynamic; redefine user experience with AI, making it more personalized for people in all aspects of their life, whether they’re at home, in the office, or on the go. This spirit of innovation has...