1 to 25 of 42 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 ...

Security Analyst - CISSP, CISM, CEH, EDR, SIEM, SOAR, IDS / IPS, TCP / IP, Defender Our leading global law firm client are currently looking to take on a new Security Analyst (CISSP, CISM, CEH, EDR, SIEM, SOAR, IDS / IPS, TCP / IP, Defender) to join their team on a permanent basis. The firm are an extremely modern law firm which offer a healthy hybrid working solution 2-3 days per week in London and offer a great deal of autonomy ...

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. ...

Security Proxy Engineer | £500-£600p / day (Inside IR35) | 6 months (initially) | London (3 days on site) | ZScaler / Netskope / Bluecoat A client of ours is looking for an experienced Security Proxy Engineer to support and enhance its enterprise proxy and secure egress … aligned to strict security and governance standards, while also providing hands-on operational support. Location: London, 3 days on site Rate: £500-£600p / day (Inside IR35) Contract length: 6 months (very strong possibility of extension due to the length of the project) Key Responsibilities: Provide ...

IR35 We’re looking for a hands-on AWS DevOps Engineer to support and enhance cloud infrastructure for a leading banking environment (24 / 7 systems). Key Skills: Strong AWS + Terraform (Infrastructure as Code) Kubernetes (EKS) & cloud platform engineering Scripting: Python / Bash / Go (Go Language Preferred) Networking fundamentals (TCP / IP, DNS, VPN, etc.) Experience with reverse proxies (NGINX / HAProxy / Traefik) CI / CD, DevOps practices & Kubernetes Nice to have: Service Mesh (Istio) Monitoring & diagnostics What ...

remediation plans* Develop standard operational procedures and produce effective documentation* Analyse workloads and devise suitable cloud migration strategies where appropriate* Ensure all project / investment workloads are delivered according to plans and budget defined* Liaise with Infrastructure Control and IT Risk teams to satisfy internal and external … detected promptly and satisfactorily resolved* Ensure sufficient capacity is available to accommodate drive growth* Respond to emails sent to the team distribution list / mailboxes in a timely manner* Handle incidents and requests with efficiency and a “customer first” mindset* Maintain infrastructure in a highly available, reliable, secure ...

Your Profile Essential skills / knowledge / experience: * 6 years of hands-on experience supporting enterprise Proxy or secure web gateway platforms. * Strong understanding of HTTP / HTTPS, TLS, certificates, encryption, and decryption processes. * Experience implementing and managing Proxy policies for traffic inspection, filtering … outbound control. * Solid foundation in networking fundamentals (TCP / IP, DNS, routing, load balancing). * Proven ability to troubleshoot complex Proxy-related user access and performance issues. * Experience working in production environments with change management and uptime requirements. * Ability to work independently on operational ...

proxy and secure web gateway services under defined standards. Manage proxy policies for web access control, traffic inspection, TLS decryption, and egress IP enforcement. Execute routine operational tasks including configuration changes, upgrades, patching, and vendor recommended updates. Monitor proxy service health, availability, and performance, identifying and resolving … teams to deliver stable proxy services. Escalate design gaps, operational risks, or recurring issues to senior engineers or architects. Your Profile Essential skills / knowledge / experience: 6 years of hands on experience supporting enterprise proxy or secure web gateway platforms. Strong understanding of HTTP / ...

highest percentage of staff who said they would recommend us as a place to work, out of all general acute or acute / community NHS trusts in England for the third year in a row. UCLH recognises the benefits of flexible working for staff To find out more … Knowledge and Qualifications Essential 1st or 2nd class honours degree in computer science, a physical science, engineering, or equivalent PhD or equivalent (MSc / MEng with additional specialist training or research experience) in a relevant field, or an equivalent level of knowledge obtained through a combination of qualifications ...

hours support for priority incidents. What were looking for Required Technical Skills Windows & VDI Advanced administration and troubleshooting of Windows Server (2016 / 2019 / 2022). Strong knowledge of Active Directory, Group Policy, DNS, DHCP, and PKI. Strong knowledge of Citrix Virtual Apps and Desktops … architecture, governance, and cost optimization. Familiarity with automation tools (PowerShell, Terraform) and DevOps principles. Virtualization, Storage & Networking (Working Knowledge) Understanding of VMware vSphere / ESXi architecture and clustering concepts. Familiarity with enterprise storage technologies (e.g., Pure Storage, HPE) and SAN / NAS fundamentals. Solid grasp ...

SystemAdministrator(DevOps / AWS / Infrastructure) TheOpportunity Wereworkingwithagrowing,technology-drivenorganisationlookingtohirea SystemAdministrator withstrong DevOpsandinfrastructureexperience .Thisisahands-onrolewhereyoullplayakeypartinmaintaining,optimising,andscalingcriticalsystems. Youllcollaboratecloselywithdevelopmentandoperationsteamstoensurehighavailability,performance,andsecurityacrosstheenvironment. KeyResponsibilities Manageandmaintainserverinfrastructure(Linux / Windowsenvironments) Supportandoptimisecloudplatforms,particularly AWS ImplementandmaintainCI / CDpipelines Monitorsystemperformance,availability,andsecurity Troubleshootcomplexinfrastructureandnetworkingissues Automateroutinetasksusingscriptingandcommand-linetools Supportdeploymentsandenvironmentconfiguration KeySkills&Experience Provenexperienceasa SystemAdministrator … orsimilarrole Strongknowledgeof AWS (EC2,S3,IAM,VPC,etc.) Solid DevOps understanding(CI / CD,automation,infrastructureascode) Strongcommand-lineskills(Bash,PowerShell,orsimilarscripting) Experiencewith servermanagement (patching,monitoring,performancetuning) Goodunderstandingof networkingconcepts (DNS,TCP / IP,firewalls,routing) FamiliaritywithtoolssuchasDocker,Kubernetes,orsimilar(desirable) ALLAPPLICANTSMUSTBEFREETOWORKINTHEUK ExposedSolutionsisactingasanemploymentagencytothisclient. Pleasenotethatnoterminologyinthisadvertisintendedtodiscriminateonanygrounds,andweconfirmthatwewillgladlyacceptapplicationsfromanypersonforthisrole. ...

Cloud DevOps Engineer / Linux Administrator Leading FinancialCity London Office / WFH blend Must live within a daily commute of London £125K plus package and Bonus Banking Financial Trading environment background Essential My client a leading Financial Exchange is seeking a highly capable Cloud & DevOps Engineer … DevOps team working across low-latency trading platforms, cloud environments, and on-prem systemscontributing to both strategic projects and hands-on engineering.Required Skills / ExperienceStrongLinux system administration(RedHat / CentOS or similar). Experience gained designing, implement and operating hybrid cloud systems on multi-accountAWS DevOps ...

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 ...

System Administrator (DevOps / AWS / Infrastructure) The Opportunity We’re working with a growing, technology-driven organisation looking to hire a System Administrator with strong DevOps and infrastructure experience . This is a hands-on role where you’ll play a key part in maintaining … with development and operations teams to ensure high availability, performance, and security across the environment. Key Responsibilities Manage and maintain server infrastructure (Linux / Windows environments) Support and optimise cloud platforms, particularly AWS Implement and maintain CI / CD pipelines Monitor system performance, availability, and security ...

team you will help to design, develop, and mature the companys cyber security capability, including the selection, implementation, and management of security tools / technologies, focused on detection, prevention, and analysis of security threats. This role offers a great opportunity to help define and shape the security function … network protocols: knowledge of standard network protocols like TCP, ARP, ICMP, DHCP, DNS, HTTP, SNMP, VPN etc., and accompanying protocol / packet analysis / manipulation tools. Understanding of key operating systems and network appliances and the ability to assess their security ...

proxy environment, ensuring it remains scalable, resilient and aligned to enterprise standards. Key Responsibilities Provide operational support for an enterprise-scale web proxy / secure egress platform, acting as a senior escalation point within the team Implement, troubleshoot and optimise proxy solutions, including policy management and traffic handling … hands-on experience supporting proxy or secure web gateway technologies within a large, complex enterprise environment Experience with at least one leading proxy / SWG platform such as Zscaler, Netskope or equivalent Background supporting secure web access services in regulated environments with formal change control practices Advanced ...

Title: Senior Infrastructure Engineer Location: London / Hybrid (2 days in office) / Monthly travel to Leeds Salary: Up to £80,000 with incredible benefits Why Apply? Work with an innovative fintech organisation that serves millions of customers and is investing heavily in cloud-first technologies … premises, and third-party environments using SDWAN, ExpressRoute, site-to-site VPNs, and remote VPNs. Manage office network connectivity, including core / access switching, WiFi APs and controllers, firewalls, and 802.1x authentication. Deploy Infrastructure as Code using ARM templates, Bicep, or Terraform for scalable and consistent network builds. ...

Policy, Office 365 & SharePoint Microsoft Exchange Virtualisation (Hyper-V, VMware, WVD) Backup & Disaster Recovery solutions Cyber Security (MFA, EDR, AV, Incident Response) Networking (TCP / IP, DNS, DHCP, LAN / WAN) Windows & macOS environments Experience supporting mobile devices Strong troubleshooting and problem ...

Active Directory, Group Policy, Office 365 & SharePointMicrosoft ExchangeVirtualisation (Hyper-V, VMware, WVD)Backup & Disaster Recovery solutionsCyber Security (MFA, EDR, AV, Incident Response)Networking (TCP / IP, DNS, DHCP, LAN / WAN)Windows & macOS environmentsExperience supporting mobile devicesStrong troubleshooting and problem-solving abilityPassion ...

threat intelligence sources to identify emerging risks relevant to the organisation. Required Skills: * Strong understanding of network protocols and system behaviour including TCP / IP, DNS and HTTP / S. System internals (Windows, Linux), and cloud environments (Azure and AWS). * Experience ...

Juniper, Cisco Project experience preferably in migration Network infrastructure and application flow through firewalled environment Demonstrate an expert understanding of networking protocols including TCP / IP and Ethernet protocols Expert design knowledge of IP based networking architecture Understanding of IGP & BGP IP … language Python Proven experience in working on large scale project Planning, coordination and execution of assigned network delivery project Perform coordination with internal / external vendor, internal bank personnel and other stakeholder for matter relating to network delivery Ensure compliance on work carried out against the bank standard ...

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 ...

Desktop, Hyper-V, Virtual Machine Manager, vSphere) Backup and Disaster Recovery solutions Cyber-security tools and concepts (EDR, MFA, AV, incident response) Networking (TCP / IP, DNS, DHCP, LAN, WAN, Wireless, Switches, Routers) Windows OS, macOS, and Microsoft Office Mobile device configuration and support ...