1 to 25 of 32 Permanent 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 ...

production environments and coordinate maintenance windows with carriers, customers, and internal stakeholders. · Define and enforce release governance: change tickets, deployment runbooks, pre / post-checks, and back-out plans for every change. · Drive continuous improvement of CI / CD pipelines (e.g., GitLab CI, Jenkins, GitHub Actions … Conduct post-release reviews and feed lessons learned back into engineering. VoIP Platform Operations · Operate, tune, and troubleshoot Kamailio as the SIP edge / registrar / proxy: dispatcher, dialog, permissions, auth, accounting, TLS, NAT traversal, RTPengine integration, scripting in KEMI / native config. · Operate ...

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. ...

GOLANG ENGINEER ESSENTIAL SKILLS Strong commercial experience with Go (Golang) Solid Linux experience (command line, system-level understanding) Strong understanding of networking concepts (TCP / IP, protocols, performance) Experience building scalable, distributed systems Strong problem-solving skills and attention to detail TO BE CONSIDERED … Please either apply through this advert or email me directly via . For further information please call me on 0203 763 3888 / 07704 152 638. By applying for this role, you give express consent for us to process and submit (subject to required skills) your application ...

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 ...

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 ...

Linux Systems Administrator - Intermediate - Financial / Banking Working in a busy and vibrant Financial / Banking environment, candidates will have a minimum of 2+ years Red Hat Linux systems Administration with some Scripting - Bash / Python - and ideally some SQL / Database … learn new skills. Responsibilities and Duties Monitor and support live trading platforms during operational hours. Participate in a support rota of early / late shifts supporting exchange hours 7am - 6.30pm to provide 1st and 2nd line support for IT infrastructure. Manage and respond to queries / ...

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. ...

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 ...

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 ...

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 ...

with Microsoft Azure cloud services and architecture Dell Servers, including iDrac Knowledge of SANs operations Essential Skills & Experience Strong knowledge of networking protocols (TCP / IP), subnetting, VLANs, VPNs, and load balancing. Experience with FortiNet firewalls and Cisco switches (including CLI configuration and firmware … updates). Proficiency in Windows operating systems and active directory. Demonstrated ability to design / troubleshoot complex network. Experience working with hybrid infrastructure and virtual networks. Ability to work collaboratively across infrastructure and security teams. Willingness to work outside of core hours when required. What Were Looking ...

Systems Engineer Heathrow / Manchester About the Role We are seeking a Systems Engineer to join a fast-paced, high-performing environment within the aviation technology sector. This is a dynamic, hands-on role suited to someone with a proactive, solutions-driven mindset and strong technical expertise. … Engineering) Experience in systems development or integration projects, ideally within real-time or mission-critical environments Hands-on experience with Windows and UNIX / Linux environments Experience with virtualisation tools (VMWare, Hyper-V) Experience installing and configuring Linux on Hyper-V Strong networking knowledge (OSI model, TCP ...

infrastructure Any experience with the following will be highly favoured: Strong experience with Qualys Exposure to Varonis Network security knowledge or relevant certifications (TCP / IP, VPNs, routing, segmentation) Experience working with ServiceNow Initially 4 days per week onsite, dropping to 3 once passed ...

professional with a strong foundation in core infrastructure and hands-on, production experience with Zscaler as a key component of a Zero Trust / SASE strategy. You'll play a critical role in maintaining and enhancing a modern network architecture that supports a fast-paced, globally distributed business. … similarly regulated, security-focused environment Strong hands-on experience with Zscaler, supporting Zero Trust and SASE architectures Solid understanding of networking fundamentals: TCP / IP, subnetting, routing, switching, DNS, DHCP, VLANs, and network security principles Experience with Cisco and Meraki technologies, or similar Hands ...

security governance and best practices Manage escalations and coordinate with engineering for timely resolution Required Skills & Experience: Experience in technical support, consulting, pre / post-sales, or similar roles Strong understanding of networking and security concepts Experience with routing protocols (BGP, OSPF), VPNs, IPSEC, TCP / IP Knowledge of authentication protocols (SAML, SSO, LDAP, RADIUS) Familiarity with SASE architecture and cloud security (CASB, DLP) Experience with multi-vendor network environments Proficiency in Linux, with Python or Bash scripting skills Strong communication skills across technical and non-technical audiences Proven ability to manage ...