76 to 100 of 338 TCP/IP Jobs in London

Security Operations Analyst (SOC analyst)

Hiring Organisation
JP Morgan Chase
Location
London, UK
Employment Type
Full-time
Response team serves as the front line of the firm's cyber defense, operating a global "follow-the-sun" model that delivers 24 / 7 monitoring, detection, and response across regions. The London SOC is a critical hub anchoring coverage across EMEA, working seamlessly with partner centers worldwide … experience in a SOC, incident response, or security analyst role (typically 2+ years).Solid understanding of security monitoring and investigation across SIEM, EDR / XDR, and network security tooling. Working knowledge of common attack techniques, the cyber kill chain, and the MITRE ATT&CK framework. Strong understanding ...

Information Security Governance, Risk, and Compliance (GRC) Specialist

Hiring Organisation
Janus Henderson
Location
London, UK
Employment Type
Full-time
information security. Certification such as Certified Information Systems Security Professional (CISSP) strongly preferred. Deep understanding of cybersecurity principles, frameworks (such as NIST, ISO / IEC 27001), and compliance standards. Experience with financial service regulations and regulations such as FCA, SEC, MAS, DORA. Proficient knowledge of network security principles … controls such as Firewalls, IPS / IPD, TCP / IP, DHCP, and DNS Extensive experience in securing Operating Systems such as Windows, UNIX / Linux and Mac systems. This includes security access rights, implementing configuration best practicesKnowledge of cloud service ...

SCADA Operations & Maintenance Engineer

Location
City of Westminster, England, United Kingdom
immense, but so are the rewards. Join our team and help move the planet towards sustainability. For more information, please visit https: / / univers.com Job Title: SCADA Operations & Maintenance Engineer Department: Operation & Maintenance Location: U.K. Job Overview: As a SCADA Operations & Maintenance Engineer, you will … higher in Computer Science, Automation, Electronic Engineering, or a related field. Skills: Familiarity with SCADA system architecture and principles. Strong network knowledge, including TCP / IP protocols, network security and network package capture / analysis. Familiarity with common communication protocols ...

Senior Attack Monitoring Analyst, GSOC

Location
Greater London, England, United Kingdom
security events and employ a methodical and coherent response to security incidents adopting playbooks where necessary. Competently operate a chosen SIEM (e.g., Splunk / QRadar / LogRhythm) for incident investigations, or for the development of monitoring dashboards. Utilise playbooks, existing knowledge and accurate online resources … countermeasures. Identify, respond and remediate cyber events generated through monitoring technologies. EXPERIENCE Preferred experience with operating or administrating a SIEM (e.g., Splunk / QRadar / LogRhythm). Solid understanding of networks including the TCP / IP stack, typical organisation architectures ...

Senior Attack Monitoring Analyst, GSOC

Hiring Organisation
London Stock Exchange Group
Location
London, UK
Employment Type
Full-time
security events and employ a methodical and coherent response to security incidents adopting playbooks where necessary. Competently operate a chosen SIEM (e.g., Splunk / QRadar / LogRhythm) for incident investigations, or for the development of monitoring dashboards. Utilise playbooks, existing knowledge and accurate online resources … countermeasures. Identify, respond and remediate cyber events generated through monitoring technologies. EXPERIENCE: Preferred experience with operating or administrating a SIEM (e.g., Splunk / QRadar / LogRhythm). Solid understanding of networks including the TCP / IP stack, typical organisation architectures ...

Senior Python Developer - up to 90,000 + Bonus - Hybrid

Hiring Organisation
Involved Solutions
Location
London, UK
Employment Type
Full-time
development. You will work across applications supporting testing, monitoring and operational efficiency within 5G and enterprise platforms, with exposure to Linux, Docker, CI / CD, databases and network technologies. The role would suit a strong Python Engineer who enjoys solving complex technical problems and wants to work across … Redis for application, configuration and testing dataBuild and maintain Docker and Docker Compose environments for application deployment and testingDevelop and maintain CI / CD pipelines using Jenkins and GitLabDevelop Linux automation using Bash, shell scripting and cron jobsIntegrate Python applications with telecom network systems and APIsBuild automated validation ...

Director, Customer Engineering Engineering

Location
Greater London, England, United Kingdom
both technical and commercial talent. Commercial Ownership: Own the CE number for your region, segment, or domain. Lead forecasting, pipeline reviews, win / loss analysis, and strategic account planning. Be accountable for new business acquisition, retention, expansion, and platform consumption targets. GTM Strategy & Execution: Shape how Customer Engineering … areas below, with the ability to engage credibly in architecture and commercial conversations: Internet fundamentals: Strong understanding of DNS, HTTP(S), TCP / IP, BGP, SSL / TLS, and network architecture. Security: Foundational knowledge of WAF, Bot Management, Zero Trust, SASE ...

Network Systems Administrator

Hiring Organisation
Comtecs
Location
South East London, London, United Kingdom
Employment Type
Permanent
Salary
£45,000
Network Systems Administrator / IT Infrastructure Support Engineer - Windows Server, Active Directory, Group Policy, Microsoft 365, Hyper-V, LAN / WAN, Wi-Fi, VPN, SQL Server, Sage. Permanent. South East London / Hybrid 3 / 2. c£40k +Benefits Established SME operating … within the music publishing sector seeks an experienced Network Systems Administrator / IT Infrastructure Support Engineer (IT Manager) to take hands-on responsibility for the technology environment supporting its London and New York offices. This is a broad individual contributor role covering Desktop Support, Windows Server, Networks, Microsoft ...

Sr Technical Lead (Support & Operations)

Location
Greater London, England, United Kingdom
Service Desk, responsible for resolving incidents and service requests requiring physical intervention, managing endpoint devices throughout their lifecycle, supporting collaboration technologies, AV / VC environments, executive users (VIP Support), technology bars, and proactive endpoint maintenance activities. The FSO will operate within GIC's technology ecosystem with a strong … Proactive Device Maintenance Program Execute structured and proactive maintenance activities including: Weekly Technology floor walks User experience validation Device health inspections Monthly AV / VC room readiness validation Endpoint optimization reviews Workplace technology checks Bi-Monthly Printer and MFD health assessments Preventive maintenance reviews Quarterly Endpoint physical asset ...

FPGA Engineer

Location
Greater London, England, United Kingdom
delivers a measurable impact. Over the course of your career at Arctic Lake, you might touch anything from raw Ethernet frame parsing and TCP / IP stack implementation at the network layer, to PCIe bus communication between the FPGA and host system, to high … experience in HDLs (e.g., SystemVerilog, Verilog, or VHDL) Proficiency in Java and Python, experience with C is desirable Familiarity with networking protocols (e.g., TCP, IP) Experience in FPGA design and verification is a plus Familiarity with FPGA toolchains like Vivado and experience with Tcl scripting ...

Senior Infrastructure Operations Engineer - Wimbledon, London

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
your own career progression then this role is for you. The Lead Automation Engineer should have:3 years experience with Windows Systems / systems support / operations support and Windows AutomationPowershell scriptingKnowledge of Windows DSCStrong technical leadership experienceUnderstanding of how tasks should be automated. Creating … managing documentation. Virtualisation including Hyper-V and SCVMM.Microsoft platforms including Windows Server 2008R2 / 2012R2, IIS 7 / 8.Good understanding of TCP / IP and the OSI stack. Usage of Active Directory. Enterprise server estates including Blade systems and high ...

Trade Flow Support - Trading Infrastructure Support

Hiring Organisation
SQUAREPOINT CAPITAL
Location
London, UK
Employment Type
Full-time
mission critical services such Infrastructure as a Service (IaaS), Build & Deploy, Research and Trading. The candidate will be responsible for providing L1 / L2 support across all services globally distributed across APAC, EMEA and AMER regions. Provide monitoring and L1 / L2 support across all services … quickly react to any outages to maintain a highly available environmentQuickly identify, analyze and correct alerts & issues and / or escalate to minimize trade flow impact and preempt outagesIntensive interaction with trading community, external vendors, development and infrastructure teamsOversee automated processes, scheduled jobs and regular reportsManage users' requests ...

IT Manager

Hiring Organisation
Mackenzie Jones IT
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 55,000 - 60,000 Annual
Consolidation & Strategy: Develop the IT Roadmap, standardise platforms & processes, and deliver projects from business case through to implementation. MSP Selection & Management: Lead RFI / RFP exercises, evaluate suppliers and oversee the transition to a shared MSP with clear service standards. Service Delivery: Lead reliable IT Support for staff … shared service desk. Team Leadership: Manage and develop IT Engineers across locations, setting priorities, workloads and objectives. Technical Ownership: Oversee Networks, Servers, Windows / macOS devices, Microsoft 365, Intune / MDM, Identity Platforms & Classroom AV. Security & Governance: Maintain IT security, data protection and GDPR compliance. Commercial ...

IT Manager

Hiring Organisation
Mackenzie Jones IT
Location
South West London, Clapham Junction, Greater London, United Kingdom
Employment Type
Permanent
Salary
£55000 - £60000/annum c.£55k - £60k + Benefits Package
Consolidation & Strategy: Develop the IT Roadmap, standardise platforms & processes, and deliver projects from business case through to implementation. MSP Selection & Management: Lead RFI / RFP exercises, evaluate suppliers and oversee the transition to a shared MSP with clear service standards. Service Delivery: Lead reliable IT Support for staff … shared service desk. Team Leadership: Manage and develop IT Engineers across locations, setting priorities, workloads and objectives. Technical Ownership: Oversee Networks, Servers, Windows / macOS devices, Microsoft 365, Intune / MDM, Identity Platforms & Classroom AV. Security & Governance: Maintain IT security, data protection and GDPR compliance. Commercial ...

IT Infrastructure & Systems Manager

Location
Greater London, England, United Kingdom
Technology and IT Operations, including infrastructure design, capacity planning, and service management. Hands-on experience with System Administration and Troubleshooting across Windows and / or Linux environments, virtualization, and cloud platforms. Proficiency in Network Security, including firewalls, VPNs, endpoint protection, access control, and security monitoring. Proven ability … solutions (e.g., 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 ...

Microsoft SQL Server

Location
Greater London, England, United Kingdom
Refinitiv Eikon, Murex Treasury System, SWIFT Alliance Access, 1AML, SIBS, GFMS. Configure and support Cisco switches, routers, FortiGate firewall environments and DNS, DHCP, TCP / IP, LAN / WAN, routing and connectivity troubleshooting. Perform SSL / TLS certificate lifecycle management … infrastructure and applications. Experience operating within regulated and security‐focused environments. Ability to provide support to VIP stakeholders. Proficiency in Windows Server 2019 / 2022 (or equivalent), Red Hadoop, VMware vSphere / vCenter, Veeam Backup & Replication, Microsoft Office 365, PowerShell scripting, SQL Server administration, and networking ...

Linux Engineer - Quant Fund

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
also enjoyable and that should be how you also see it. You will need:5 years of hands-on experience in Linux / Unix administration (RHEL / CentOS / OEL preferred).Strong verbal and written communication skills.3+ years of experience of leading a technology … team (preferably Infrastructure support / Sys Admin team)Relentless dedication to customer service. Strong analytical, prioritizing, interpersonal, problem-solving skills. Knowledge of the CI / CD pipeline tools and understanding of the conceptWorking knowledge with TCP / IP, multicast, tcpdump ...

Trade Flow Support - Trading Infrastructure Support Lead

Hiring Organisation
SQUAREPOINT CAPITAL
Location
London, UK
Employment Type
Full-time
hands-on with troubleshooting and lead major outage recovery efforts to minimize impact. Required Qualifications: 5+ years of hands-on experience in Linux / Unix administration (RHEL / CentOS / OEL preferred).Strong understanding of CI / CD practices, including observability, orchestration … abilities. Working knowledge of storage protocols (NFS, GPFS a plus).Experience with infrastructure automation tools (Chef, Puppet, Ansible).Solid understanding of networking fundamentals (TCP / IP, multicast, tcpdump, PTP, NTP).Ability to thrive in a fast-paced, deadline-driven environment. Bachelor's degree ...

CLOUD SECURITY ENGINEER

Location
Greater London, England, United Kingdom
Requisition ID 11408 -Posted 08 / 18 / 2026 - Years of Experience (2) - Technology - Where (1) Reply specialises in designing and implementing solutions based on new communication channels and digital media. Structured as a network of highly specialised companies, Reply supports leading European industrial groups … shift security left across the full delivery lifecycle. Responsibilities: Design and implement cloud security architectures onAWS (primary), with exposure to Azure and / or GCP being advantageous Build and maintain secure infrastructure usingInfrastructure as Code (Terraform), including reusable, security-hardened modules and reference patterns Integrate security tooling ...

Senior IT Infrastructure & Systems Manager

Hiring Organisation
Nexus Jobs
Location
London, United Kingdom
Salary
£ 55 K
replication solutions (e.g., Syncovery, other SFTP). NetworkingConfigure 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 … ManagementSupport vulnerability management using tools such as Tenable. Manage security monitoring and log analysis tools (e.g., 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 ...

Network Engineer – Central London, Hybrid - 60,000

Hiring Organisation
Ashdown Group
Location
London, United Kingdom
Salary
£ 60 K
Engineer role will include:Configure, manage and troubleshoot FortiGate firewalls and Fortinet security solutions.Manage firewall policies, NAT, VPNs, routing and security rules.Support LAN / WAN, switching, routing and network security infrastructure.Monitor network performance, availability and security.Investigate and resolve complex network incidents and outages.Perform network changes, upgrades and security … documentation and infrastructure projects.Ensure network environments meet security and operational standards.Essential Skills & ExperienceStrong commercial experience as a Network Engineer.Hands-on experience with Fortinet / FortiGate environments.Solid understanding of TCP / IP, DNS, DHCP, VLANs, routing and switching.Experience with firewalls, VPNs ...

Senior Platform Engineer

Location
Greater London, England, United Kingdom
need to.The Platform Team owns the infrastructure and automation platform underpinning IG's global trading operations – cloud-native infrastructure on AWS, GitLab CI / CD, and self-service capabilities that help development teams move faster with greater confidence. Edge delivery sits at the very front of that stack … rules – wrapped in policy checks, automated validation, and staging tests that catch mistakes before they reach production* Integrate edge configuration into GitLab CI / CD alongside ServiceNow change control, so every property and DNS change is peer-reviewed, tested, and promoted through environments the same way each ...

Distributed Network Engineer/Architect

Location
Greater London, England, United Kingdom
supporting a fast-scaling semiconductor company developing next-generation networking and security technology. They are looking to hire an experienced Distributed Network Engineer / Architect to join their fast growing team in London. This is a hands-on staff engineer position with ownership of distributed networking architecture … decisions that span multiple teams, acting as the fulcrum across their networking, security and distributed system teams. You will be taking technical (Design / Architecture / Implementation) ownership over large-scale network and control plane systems that operate at global scale across cloud and networking ...

Network Support Engineer (Enterprise Wi-Fi & LAN/WAN)

Hiring Organisation
Adecco
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£40000 - £45000/annum + Perm Benefits + On-Call
Network Support Engineer (Enterprise Wi-Fi & LAN / WAN) Location: Central London (Office-based with client site visits) Salary: £45,000 + Benefits + On-Call (Clear Career progression opportunities) About the Role We're looking for a customer-focused Network Support Engineer to join a specialist … support, deployment and troubleshooting. LAN and WAN networking. Routing and switching technologies. VLANs. Spanning Tree Protocol (STP). TCP / IP networking. IP addressing and subnetting. DNS, DHCP and VPN technologies. Firewall administration and troubleshooting. Network monitoring and diagnostics. ...

Senior Manager, Customer Engineering UKI

Location
Greater London, England, United Kingdom
follow architecture discussions and coach reps: Internet fundamentals: Strong foundational understanding of how the Internet works, including DNS, HTTP(S), TCP / IP, and SSL / TLS. Security: Foundational knowledge of security concepts such as WAF, Bot Management, Zero Trust … SASE, and threat mitigation. Performance: Foundational knowledge of performance concepts such as caching, latency, content delivery, and traffic steering. Platform / Cloud Fluency: Hands-on experience with cloud platforms, edge services, APIs, automation, or developer tooling. Strongly Preferred Qualifications (The “Good-to-Haves”) Cloudflare Ecosystem Expertise: Experience with ...