1 to 25 of 40 TCP/IP Jobs in London

Investment Banking - Low Latency C++ Developer - financial markets / Linux / Scripting / low latency / TCP / IP PURPOSE AND SUMMARY We are looking for a C++ developer to be part of the low latency … swift and frequent delivery of useful software. ESSENTIAL DUTIES AND RESPONSIBILITIES Plan, design, develop, document, test, deploy, and support new and existing features / modules SKILLS & EXPERIENCES ASSESSMENT 7+ years of C / C++ development experience Experience with financial markets / clients Experience with ...

Leading and implementing infrastructure and network change activities. Administering Windows Server environments including AD, DNS, DHCP and Group Policy. Supporting Linux environments (Ubuntu / CentOS). Working with networking technologies including TCP / IP, load balancing and firewalls. Supporting Microsoft stack technologies … experience (2008–2025). Deep knowledge of Active Directory, DNS, DHCP and Group Policy. Experience installing and configuring Windows Server and Windows 10 / 11 environments. Good Linux administration skills (Ubuntu / CentOS). Knowledge of networking technologies including TCP / IP ...

Trust as a whole. Hold relevant professional qualifications, in depth knowledge obtained through formal training to Master's degree level and / or relevant experience within a similar role within Networking and Security. Responsible for managing incoming work for others, distributing work in line with priorities, ensuring service … line with deadlines and service standards Responsible for ensuring adequate systems, policy and procedures are in place covering data protections, data loss / theft, Network intrusion detection / prevention and systems from security threats Point of contact, technical lead and escalation point for additional governance, security ...

Guide clients through onboarding and testing, ensuring adherence to MTF requirements and trading rules. Troubleshoot client connectivity or trading issues (including FIX sessions, TCP / IP connectivity, firewall or routing matters), escalating to technology & engineering teams where necessary. Trading & Market Technical Operations Monitor live … client connectivity or technical infrastructure. Strong knowledge of European financial markets, particularly equities and FX trading landscape. Familiarity with Networking, networking fundamentals (TCP / IP, multicast, firewalls, VPNs), FIX protocol, market data feeds, and order / trade lifecycle processes. ...

Responsibilities: Configuration and administration of IBM z / OS mainframe network software. Configuration and administration of network related 3rd party system software. Provision of technical support for Mainframe Networking issues during the normal working day and out of hours on call support. Act as a Mainframe Networking resource … other file transfer products Session Management products eg. TPX, Teleview, CL / Supersession Network Management products eg. NETVIEW, Netmaster / TCPIP Print server products eg. VPS Must be a self-starter, but also a completer / finisher who ensures that tasks / ...

public sector accounts. This is a remote, client-facing role for a highly technical and experienced presales professional with a strong Government / Public Sector background and current SC clearance. Key Requirements: We are looking for a client-facing technical expert with deep presales experience, capable of operating … success supporting UK Government or public sector clients Ability to translate technical challenges into clear commercial value Cisco routing, switching, gateways, and applications TCP / IP, SNMP, Netflow, VoIP LAN / WAN topologies (MPLS, Frame Relay, ATM) Security concepts and network infrastructure ...

Contract We need a skilled IT Engineer to integrate OneTrust Data Discovery across systems handling personal data. You’ll gather technical data, open / validate network paths, and work with SMEs to deploy and configure worker nodes and connectors. Key Deliverables Onboard prioritized assets into OneTrust Document connectivity … / setup for each application Complete initial catalog scans with ICRM Develop SOPs for onboarding, credentials, and change control Technical Skills OS: Windows Server, Linux (RHEL, Ubuntu) Databases / Stores: SQL Server, Oracle, PostgreSQL, MySQL, MongoDB, SMB / NFS, SharePoint, OneDrive Networking: TCP ...

C++ Developer / Technical Lead (Windows C / C++, C#) London to £115k FTC Are you a skilled C++ Developer with technical / team leadership skills looking for a new opportunity? You could be progressing your career in a senior, hands-on role … global market data provider. As a C++ Developer / Technical Lead you will head-up an Agile team (5 engineers) focussed on building and maintaining Exchange Connectivity software systems that require real-time and low latency, maintaining data feeds and developing key underlying transport protocols for data transmission. ...

public sector accounts. This is a remote, client-facing role for a highly technical and experienced presales professional with a strong Government / Public Sector background and current SC clearance . Key Requirements We are looking for a client-facing technical expert with deep presales experience, capable … commercial value Confident at C-Suite Level and able to hold customer meetings onsite Strong expertise in: Cisco routing, switching, gateways, and applications TCP / IP, SNMP, Netflow, VoIP LAN / WAN topologies (MPLS, Frame Relay, ATM) Security concepts and network infrastructure ...

dynamic and award-winning AV Service Team! Providing cutting-edge AV solutions to clients. This is a chance to work with complex AV / IT systems, deliver exceptional customer experiences, and grow your technical skills in a supportive, forward-thinking environment. What You'll Be Doing … Crestron Control & AV Switching / Matrix Systems Signal extenders (CatX / HDBaseT) Lighting / DMX control, AVoIP / Dante Networking & basic IT troubleshooting Perks & Benefits Company pension & life insurance Health & wellbeing programme Paid sick leave Opportunity for continuous professional development ...

diagnostics — not web development. What you’ll do: Lead web integration & compatibility (auth flows, cookies, headers, browser behaviour) Troubleshoot issues across browser, proxy / isolation, and application layers Work closely with security & network teams to resolve complex issues Document configurations, fixes, and known issues What we’re looking … Strong web fundamentals & browser troubleshooting experience Knowledge of proxies, DNS, TCP / IP, and networking basics Experience with Menlo Security (or similar) (Island.io, Prisma Browser, Chromium, SURF) Scripting (Python / Bash) and cloud exposure (AWS / Azure / ...

Network Security Engineer BTCC Location: To Be Confirmed Contract Type: Full-Time, Permanent Working Model: On-site / Hybrid (as applicable) Industry: Cryptocurrency / Blockchain / Fintech About BTCC Founded in 2011, BTCC is one of the world s longest-running cryptocurrency exchanges, delivering … organisational and regulatory requirements. What You Bring 3 5 years of hands-on experience in network security engineering. Strong understanding of networking principles, TCP / IP, routing, switching, and firewall technologies. Proven experience managing FortiGate firewalls and FortiSASE solutions. Familiarity with ...

Network Security Engineer | BTCC Location: [To Be Confirmed] Contract Type: Full-Time, Permanent Working Model: On-site / Hybrid (as applicable) Industry: Cryptocurrency / Blockchain / Fintech About BTCC Founded in 2011, BTCC is one of the world’s longest-running cryptocurrency exchanges, delivering … organisational and regulatory requirements. What You Bring 3–5 years of hands-on experience in network security engineering. Strong understanding of networking principles, TCP / IP, routing, switching, and firewall technologies. Proven experience managing FortiGate firewalls and FortiSASE solutions. Familiarity with ...

Senior Infrastructure Engineer Central London £550 - £650 p / d - outside IR35 3 month initial term A well-established, growing business is seeking an experienced Senior IT Infrastructure Engineer to support both core infrastructure and M&A projects. This is a critical role during a period of ambitious … Responsibilities: * Lead the assessment, integration and consolidation of IT environments during mergers and acquisitions * Manage core office and site networks, including LAN / WAN, VPNs, IP addressing and firewall operations (FortiGate)u * Conduct audits of IT infrastructure, cloud environments (Azure, AWS) and enterprise applications ...

Responsibilities: Lead the assessment, integration and consolidation of IT environments during mergers and acquisitions Manage core office and site networks, including LAN / WAN, VPNs, IP addressing and firewall operations (FortiGate) Conduct audits of IT infrastructure, cloud environments (Azure, AWS) and enterprise applications (ERP, CRM) Plan … escalation point for complex issues Essential Skills & Experience: Strong expertise in Azure, Microsoft 365, Windows Server and hybrid cloud environments Networking: TCP / IP, DHCP, DNS, routing, switching, VPNs, firewall configuration; CCNA / CCNP preferred Active Directory and identity management, including multi ...

have a team of 22,500 people across 32 countries. Our corporate headquarters are in Dublin, Ireland. Learn . Internal Grade C / EB7 Job Description Experians Digital Workplace team is looking for a Head of Campus Network to lead our global engineering and operations for Secure Service … infrastructure end-to-end, from RF design and surveys to deployment and optimisation. Deliver advanced RF tuning, roaming optimisation, and Wi-Fi 6 / 6E operations, with planning for Wi-Fi 7 adoption. Manage wireless controllers and cloud platforms such as Cisco Catalyst Center, Aruba Central, or Juniper ...

team of 22,500 people across 32 countries. Our corporate headquarters are in Dublin, Ireland. Learn more at experianplc.com. Internal Grade C / EB7 Job Description Experians Digital Workplace team is looking for a Head of Campus Network to lead our global engineering and operations for Secure Service … infrastructure end-to-end, from RF design and surveys to deployment and optimisation. Deliver advanced RF tuning, roaming optimisation, and Wi-Fi 6 / 6E operations, with planning for Wi-Fi 7 adoption. Manage wireless controllers and cloud platforms such as Cisco Catalyst Center, Aruba Central, or Juniper ...

Architect | £600 per day (Inside IR35)- Active SC Clearance required Location: United Kingdom (Remote / Hybrid) Duration: 6 Months Initial Rate: £600 per day (Inside IR35) An exciting opportunity has arisen for a seasoned AWS Architect to join one of the largest AWS-based platforms in the UK. … Expert AWS Knowledge: Deep understanding of core services including VPCs, subnets, EC2, Lambda, S3, Route 53, and VPC endpoints. Networking: Strong grasp of TCP / IP, DNS, routing, and proxy patterns. Containers: Good broad architectural understanding of Containers and Kubernetes. Documentation & Communication: Proven ability ...

premise experience is essential. Experience operating as a proxy SME in a complex, multi-regional enterprise environment. Deep understanding of proxy technologies: explicit / transparent proxies, PAC files, SSL decryption, authentication, etc. Strong understanding of TCP / IP, DNS, HTTP / … convert business and security requirements into robust technical designs. Solid background producing technical documentation and design artefacts. Desirable Skills Any relevant proxy / security certifications. Familiarity with ISO 27001, NIST CSF or related security frameworks. Experience working within regulated environments or with ITIL-based service models. Working Model ...

hands-on experience with Docker and Docker Swarm in a production environment. Proficiency with core AWS services: EC2, S3, CloudWatch, IAM, ELB, ECS / Fargate, and RDS. Solid understanding of Linux server environments, command-line operations, and scripting. Experience in supporting real-time or mission-critical systems (security … alerting tools (e.g., ELK, Prometheus, Grafana). Good understanding of networking, VPNs, load balancing, DNS, and firewalls. Comfortable with Git and CI / CD workflows. Excellent troubleshooting skills and structured problem-solving approach. Strong written and verbal communication skills. Desirable / Nice to Have: Experience with ...

hands-on experience with Docker and Docker Swarm in a production environment. Proficiency with core AWS services: EC2, S3, CloudWatch, IAM, ELB, ECS / Fargate, and RDS. Solid understanding of Linux server environments, command-line operations, and scripting. Experience in supporting real-time or mission-critical systems (security … alerting tools (e.g., ELK, Prometheus, Grafana). Good understanding of networking, VPNs, load balancing, DNS, and firewalls. Comfortable with Git and CI / CD workflows. Excellent troubleshooting skills and structured problem-solving approach. Strong written and verbal communication skills. Desirable / Nice to Have: Experience with ...

client is recruiting a VIP Desktop Engineer to support prestigious Hedge Fund and Asset & Wealth Management clients. Candidates must have proven VIP / white-glove support experience within a legal or financial services environment. Role Overview: Providing VIP deskside support to Traders and senior stakeholders via phone … internal users and external partners Technical Skills Required: Windows 11 Microsoft 365 (Outlook, Teams, Excel, Word) Active Directory (user admin, permissions) Citrix / Terminal Services VPN & network connectivity (TCP / IP, DNS, DHCP) Hardware build, imaging & troubleshooting Printer & peripheral support Experience: 2+ ...

Linux and macOS systems administration, including a solid understanding of networking fundamentals such as Transmission Control Protocol / Internet Protocol (TCP / IP) and Virtual Local Area Networks (VLANs). Proven ability ...

Network & Systems Engineer - Real Estate / Construction - London £65,000-£77,000 + Discretionary Bonus & Benefits The Business Our client is a well-established London based construction firm delivering high-quality new build, refurbishment and fit-out projects ranging from £1m-£60m. Its client portfolio includes globally recognised … Support virtualised environments Assist with Azure resource administration Cyber Security & Best Practice IT Operations support assistance Skills & Experience Proven experience as a Network / Systems Administrator or similar role Strong hands-on experience with Fortinet products, particularly FortiGate firewalls and VPNs Solid networking knowledge (TCP / ...

Responsibilities Design and develop network architecture strategies aligned with business needs and industry standards. Implement and manage network security measures (firewalls, VPNs, IDS / IPS). Configure and maintain routers, switches, wireless systems, and firewalls. Deploy scalable, high-performance network solutions with minimal downtime. Conduct regular network maintenance … management. Willingness to travel to remote sites as needed. Essential Experience & Knowledge Proven experience as a Senior Network Engineer. Proficiency in network protocols (TCP / IP, BGP, OSPF). Hands-on experience with Cisco, Meraki, Fortinet, NETGEAR, ZYXEL. Experience with SD-WAN technologies ...