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Job VacancySenior IT Infrastructure & Systems Lead

Nexus Jobs Limited
Published on
Center for Internet Security (CIS)
LAN
Office 365

£70k-75k
SW1V 1SW, London, England, United Kingdom
Senior IT Infrastructure & Systems Lead Our Client a bank, in Central London are looking for an experienced IT Infrastructure professional who is ideally looking for their next challenge in a dynamic and regulated financial services environment. We are seeking a highly skilled Senior IT Infrastructure Officer to lead the management, security, and continuous improvement of our enterprise IT infrastructure. The Senior IT Infrastructure Officer will be playing a key role in ensuring the availability, resilience, and performance of critical systems while supporting technologies across servers, networks, cloud services, cybersecurity, and business-critical financial applications. The candidate must have strong technical expertise in Windows/Linux, VMware, Microsoft 365, networking, cybersecurity, and infrastructure management who also enjoys solving complex challenges and driving operational excellence. Must have 7 years' experience in enterprise infrastructure, ideally within banking or financial services, and be passionate about delivering secure, reliable IT services.. The role will be Monday to Friday, 9:30am to 5:30pm and reporting into the Head of IT & Data. Due to the nature of the role, the individual is expected to work in our offices, 5 days per week, during their probationary period This role is totally hands-on. Role Description The Senior IT Infrastructure & Systems Lead is a full-time hybrid role based in London, with flexibility for some work-from-home arrangements. This role is responsible for overseeing the day-to-day operation, maintenance, and improvement of the company's IT infrastructure, including networks, servers, and core systems. The person in this role will lead and mentor technical staff, manage system performance and availability, and coordinate responses to incidents and service requests. Typical tasks include monitoring network and system health, implementing security measures, resolving technical complex issues, planning upgrades, and collaborating with stakeholders to align technology solutions with business needs. The role also involves vendor management, documentation of infrastructure and procedures, and contributing to IT strategy and roadmap decisions. Qualifications · Candidates should possess strong skills in Network Administration and Information Technology for managing and optimizing infrastructure and systems. · Candidates should possess solid Technical Support and Troubleshooting skills to diagnose, resolve, and prevent complex IT issues. · Candidates should possess expertise in Network Security to implement, monitor, and improve security controls and practices. · Extensive experience in leading IT infrastructure projects, including planning, implementation, and migration activities. · Proven ability to manage and mentor IT teams, with strong communication and stakeholder management skills. · Experience with server and cloud technologies, virtualization, backup and recovery, and IT monitoring tools. · Relevant professional certifications (eg, CompTIA Network+, CCNA, MCSE, or similar) are beneficial. · Bachelor's degree in Information Technology, Computer Science, or a related field, or equivalent practical experience. Infrastructure & Systems Management · Administer, maintain, and optimize Windows and Linux server environments. · Manage VMware virtualized infrastructure (vSphere 8 and above). · Oversee enterprise backup and disaster recovery solutions using Veeam Backup & Replication. · Manage Veeam ONE monitoring and Veeam Recovery Orchestrator (VRO) environments. · Administer endpoint security and encryption solutions, including Symantec Endpoint Protection (SEP) and Symantec Endpoint Encryption (SEE). · Support endpoint DLP, SIEM, and security monitoring tools (eg, Splunk, Tenable). · Manage patching processes using ManageEngine Patch Manager Plus. · Support Microsoft 365 services and related cloud technologies. · In depth understanding of Cyber ​​security · Monitor system performance, capacity, availability, and infrastructure health. · Ensure compliance with IT governance, security policies, and operational standards. End-User Computing & Branch Support · Provide advanced desktop, laptop, printer, Mobile device (iOS) and branch office IT support. · Deliver AV support for meeting rooms, conferencing, presentations, and collaboration systems. · Manage OS deployment, imaging, image creation, maintenance, and software packaging. · Administer Active Directory (AD), Group Policy Objects (GPOs) and user provisioning and NTFS permissions. · Support Microsoft 365 applications including Outlook, Teams, OneDrive, and SharePoint. · Resolve technical incidents and service requests in line with agreed SLAs. Enterprise Applications & Financial Systems Support · Support and administer business-critical applications, including: · Bloomberg FXT and Refinitiv Eikon, Murex Treasury System, SWIFT Alliance Access (SAA), 1AML, SIBS, GFMS, COP · Support enterprise file synchronization and replication solutions (eg, Syncovery, other SFTP). Networking • Configure and support Cisco switches and routers. • Administer FortiGate firewall environments. • Strong network fundamentals: DNS, DHCP, TCP/IP, LAN/WAN, Routing and connectivity troubleshooting. Monitor network performance, availability, and security posture. Security & Endpoint Management · Support vulnerability management using tools such as Tenable. · Manage security monitoring and log analysis tools (eg, Splunk). · Perform SSL/TLS certificate lifecycle management using OpenSSL. · Create and manage CSRs, certificate chains, and private keys. · Ensure adherence to cybersecurity policies, standards, and regulatory requirements. · Support physical access control systems (eg, Paxton) Operating Systems · Windows 11 · Windows Server 2019/2022 (or equivalent enterprise environments) Red Hat Linux Infrastructure & Virtualization · VMware vSphere / vCenter (v8.0.3 and above) Veeam Backup & Replication Veeam ONE, VRO Microsoft Office 365 · ManageEngine Patch Manager Plus SaaS solutions SQL Server Security · Symantec Endpoint Protection (SEP) · Symantec Endpoint Encryption (SEE) SentinelOne – EDR/XDR Endpoint DLP solutions Firewall administration · Vulnerability management tools (eg, Tenable) SIEM tools (e.g., Splunk) Networking Cisco Switches and Routers · FortiGate Firewalls · LAN/WAN networking and routing Hardware & Storage Dell PowerEdge Servers · Dell PowerVault SAN Storage Education Bachelor or Master's degree or professional qualification in relevant discipline (IT/Information Systems/Computer Science/Technology/Programming/Information Science/System Engineering/Computing) The role is based in Central London and initially will be 5 days per week in the office. This is a 12 month FTC position. The salary for the role will be around £70K - £75K. Do send your CV to us in Word format along with your salary and availability.
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Contractor

Contractor jobNetwork TDA

LA International Computer Consultants Ltd
Published on

30 months
SW1A 2AH, City of Westminster, England, United Kingdom
Technical Design Authority roles 6 months Inside IR35 £500-£600 per day Location can look UK wide. Network TDA Location - Glasgow preferred but will look at UK wide options Network TDA (may also need a Solution Architect) Skills IP Connect UK WAN - essential Cisco ISE - essential Cisco SD-WAN - highly desirable Meraki - desirable May also need some OT skills as well Please share your latest CV LA International is an award-winning partner of choice for many of the world's most influential companies and government organisations. Holding Enhanced Government Security Accreditation, we are recognised as the European market leader in the delivery of Security Cleared talent to organisations that demand the very highest levels of security, compliance and assurance. A multiple award-winning organisation, having secured the prestigious Queens Award for Enterprise: International Trade over consecutive years. We are committed to fostering an inclusive, equitable and accessible workplace where everyone feels valued and supported. We welcome applications from all individuals, regardless of background or identity, and we encourage candidates who may not meet every listed requirement to still apply. If you require any adjustments or support during the recruitment process, please let us know and we will work with you to ensure a fair and accessible experience. Please Note: If a high volume of applications is received, only candidates shortlisted will be contacted.
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Contractor
Permanent

Job VacancyIngénieur Réseau H/F

ITEA
Published on
Network administration

4 years
40k-45k €
400-550 €
Strasbourg, Grand Est
Plus qu'un métier, itéa a pour vocation de déceler et révéler les bons profils, avec une curiosité qui va souvent au-delà des compétences et parfois entre les lignes d'un CV. Aujourd'hui, nous recherchons pour l'un de nos clients un Ingénieur Réseau H/F et vous présentons les points clés du poste : Les missions : Dans un contexte multisites à l'international : Administration de l'architecture WAN / SD-WAN Cisco Meraki couvrant plus de 240 sites en Europe et Amérique du Nord ainsi que 4 Datacenters. Administration des services réseau : MPLS/BVPN Orange, VPN IPsec, QoS et téléphonie IP. Administration des solutions Meraki, Fortinet et Palo Alto et sécurisation des flux IT/OT. Conception, exploitation et maintien en condition opérationnelle des infrastructures réseau critiques en environnements OT industriels. Supervision de l'ensemble de l'architecture réseau du groupe via Centreon et Grafana et support de niveau 3. Pilotage de l'intégration de nouveaux sites et filiales, coordination avec les opérateurs télécoms et les équipes locales. Automatisation des opérations réseau via Python, API Meraki et NetBox. Maintien de la documentation technique, des procédures d'exploitation et des cartographies réseau des Datacenters et sites distants. Accompagnement des prestataires OT et promotion des bonnes pratiques réseau et sécurité.
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Contractor

Contractor jobDV L3 Network Engineer

LA International Computer Consultants Ltd
Published on

6 months
£550-570
Bristol, United Kingdom
Network Engineer Location : Corsham Clearance : DV cleared. Duration : 3 months initial. We are looking for a L3 Network Engineer (CISCO) to provide network engineering support of the LAN and WAN across all security domains. Your role will involve incident management and change implementation on our clients' live system, on incidents that have been escalated from 1/2nd line resources that are often remotely based environments. Skills: * Installation, configuration, deployment, maintenance and diagnostics of all Network Devices and supporting cabling and infrastructure eg Router, switch and firewall IOS and firmware upgrades * Level 3 Support for the LANs and WANs relating to Core Services * Network support, advice and recommendations to design change * Updating Design Documentation to capture Network Changes * ASA and Firepower firewall experience. * Experience of multi-security tier and multi-tenant environments. * Knowledge of VMWare NSX Firewall & SDWAN. * NGNIX * LINUX Due to the nature and urgency of this post, candidates holding or who have held high level security clearance in the past are most welcome to apply. Please note successful applicants will be required to be security cleared prior to appointment which can take a minimum 18 weeks. LA International is an award-winning partner of choice for many of the world's most influential companies and government organisations. Holding Enhanced Government Security Accreditation, we are recognised as the European market leader in the delivery of Security Cleared talent to organisations that demand the very highest levels of security, compliance and assurance. An award-winning organisation, having secured the prestigious Queens Award for Enterprise: International Trade over multiple years. We are committed to fostering an inclusive, equitable and accessible workplace where everyone feels valued and supported. We welcome applications from all individuals, regardless of background or identity, and we encourage candidates who may not meet every listed requirement to still apply. If you require any adjustments or support during the recruitment process, please let us know and we will work with you to ensure a fair and accessible experience. Please Note: If a high volume of applications is received, only candidates shortlisted will be contacted.
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