1 to 25 of 47 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 ...

strong systems and DevOps engineering experience. Basic qualifications 7–10 years building production backend systems, including 3–5 years in high-scale and / or low-latency environments. Deep expertise in Linux networking data path and kernel-level networking (e.g., XDP, eBPF, dpdk, iptables, nftables) for traffic processing … more: Java / Python / C Rust / Go (strong preference for Java for control-plane / services). Deep systems design expertise: concurrency, memory management, performance tuning, API design, consistency models, and distributed systems fundamentals. Proven DevOps leadership at scale ...

onboarding. The role blends day-to-day support with opportunities to improve systems, processes, and automation over time. Key Responsibilities User Support (1st / 2nd Line) Act as the first point of contact for all IT issues on-site (approx. 70 active users, plus drivers) Troubleshoot and resolve … issues with Windows desktops, laptops, peripherals, printers, and basic networking Support remote / home workers, including VPN and connectivity issues Escalate more complex issues where appropriate, while owning them through to resolution Microsoft 365 & Endpoint Management Provision and deprovision users in Microsoft 365 (mailboxes, Teams, groups, permissions) Build ...

Attributes: You’re confident, client-focused and technically sharp, with: Strong hands-on experience with Windows 10 and macOS Solid understanding of LAN / WAN / Wi-Fi networking Proficiency in Windows Server 2012 / 2016 / 2019 and technologies like: Active … Directory, Hyper-V, DNS, DHCP, DFS, ADFS, FAP Knowledge of PC setup , TCP / IP networking and system configuration Experience with cloud platforms such as Office 365, Google Workspace, AWS or Azure Ability to troubleshoot client-side apps (e.g. Microsoft Office) Advanced problem-solving ...

create high-quality JIRA tickets, validate fixes and close the loop with customers. Collaborate cross-functionally with Project Management and Development; suggest correct / expected behaviours and test code prior to release. Support database config, backup / restore, and querying (T-SQL / Microsoft … used, there are certain projects where you will be required to travel to the clients sites. What you'll bring Background in broadcast / media technology working with broadcast software based systems Working knowledge of Windows Server 2016 / 2019, IT networking, information security, monitoring / ...

support or helpdesk teams (1-5 staff) in a hands on capacity. Microsoft Windows, Active Directory * Microsoft Office 365 (Exchange Online, SharePoint) iOS / iPhone and JAMF device management TCP / IP networking fundamentals Proven ability to manage helpdesk tools and CMDB … systems, and produce reports / metrics dashboards. Excellent prioritisation, problem-solving, and communication skills Familiarity with service desk best practices Excellent inter-personal skills Retail tools or point-of sale systems experience is a strong advantage Formal IT qualifications (A levels, degree, or certifications such as Microsoft / ...

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. ...

enterprise. This is an opportunity to work hands-on with the latest Microsoft technologies - as well as core network infrastructure spanning LAN / WAN, Wi-Fi, firewalls, and cloud connectivity. You’ll contribute to service design and drive automation. The ideal candidate should bring strong TCP … / IP networking fundamentals, proven scripting / automation skills (PowerShell or Python), and experience delivering cloud infrastructure (IaaS) and M365 deployments / migrations. Proficiency with Conditional Access, CI / CD pipelines, and Infrastructure-as-Code (e.g., Terraform) is essential. Additional ...

C++ Developer / Backend Software Engineer Cambridge / WFH to £75k Are you a C++ technologist looking for an opportunity to progress your career whilst working on complex and interesting systems with continual learning opportunities? You could be joining a market leading software house that … upcoming projects include a piece around cryptography, there's a strong pipeline of projects to keep it interesting! Location / WFH: There's a friendly and supportive team environment, you'll be able to work from home most of the time, meeting up with colleagues in the Cambridge ...

prioritise effectively Team-oriented and adaptable in a multicultural environment Technical requirements 3+ years' experience in IT support or infrastructure Strong Windows 10 / 11 and Windows Server experience Solid Active Directory knowledge Good understanding of networking fundamentals (TCP / IP, VLANs … routing, Wi-Fi) Comfortable supporting hardware, printers, and general IT infrastructure Nice to have M365, Azure AD sync, Entra ID, Intune Virtualisation (VMWare / XenServer) Linux, macOS, iOS, Android environments CCTV, telephony, access control, or AV systems Additional languages Why apply? Broad, hands-on technical role Exposure ...

Title: SD-WAN Engineer Location: Hybrid / Remote Salary: £35,000 to £45,000 Our client is seeking an experienced SD-WAN Expert / Network Solutions Engineer to support the design, deployment, and operation of SD-WAN solutions for enterprise and mid-market customers. The role … environments. Lead SD-WAN implementations, including migrations from MPLS to broadband, LTE, and 5G. Produce high-level and low-level network designs (HLD / LLD). Configure and support routing, QoS, application-aware routing, and traffic steering. Integrate SD-WAN solutions with firewalls, SASE platforms, cloud services ...

candidates with a range of backgrounds. Experience in any of the following areas is beneficial: Virtualisation technologies and concepts Windows Server 2016 / 2019 administration Cloud platforms such as AWS or Azure Red Hat technologies (e.g., Satellite 6, RHEL / CentOS, CoreOS) Active Directory administration … structure, RBAC, DFS) VSAN, SCVMM, Hyper-V Networking fundamentals: TCP / IP, DHCP, DNS, LAN / WAN Scripting skills (PowerShell, Bash, Python, Git) Awareness of McAfee EPO / ENS You don't need to tick every box - if you have ...

candidates with a range of backgrounds. Experience in any of the following areas is beneficial: Virtualisation technologies and concepts Windows Server 2016 / 2019 administration Cloud platforms such as AWS or Azure Red Hat technologies (e.g., Satellite 6, RHEL / CentOS, CoreOS) Active Directory administration … structure, RBAC, DFS) VSAN, SCVMM, Hyper-V Networking fundamentals: TCP / IP, DHCP, DNS, LAN / WAN Scripting skills (PowerShell, Bash, Python, Git) Awareness of McAfee EPO / ENS You don't need to tick every box - if you have ...

loss prevention (DLP) rules, and web security policies. Drive Adoption: Guide customers through the secure and large-scale deployment of the PAB extension / client to end-user devices using various enterprise deployment methods (e.g., GPO, MDM). Be a Proactive Technical Advisor: Serve … toward successful deployment, manage project risks, and navigate organizational challenges or pushback to maintain project velocity. Expert-level knowledge of core networking concepts (TCP / IP, DNS, HTTP / S) and enterprise security principles (Zero Trust, SASE, Firewall, Proxy, VPN). Demonstrated ...

support and wants to work in an environment where quality and professionalism matter. You'll ideally bring: Several years of hands-on desktop / help desk support experience in a professional environment Strong Windows endpoint support experience and familiarity with macOS Experience with Active Directory user and group … management Solid understanding of networking fundamentals (LAN, DNS, TCP / IP, Wi-Fi) Confidence supporting mobile devices and peripherals Experience working with third-party vendors Excellent customer service skills and the ability to explain technical issues clearly A calm, methodical approach and genuine ownership ...

support, acting as the primary escalation point for complex technical incidents. Technical Management: Oversee the deployment and maintenance of the iOS / iPhone estate via JAMF / Intune . Reporting & Strategy: Manage the CMDB and helpdesk systems to produce regular statistics and trend reports. Governance: Maintain … staff) in a hands-on capacity. ITSM: Deep experience with ServiceNow or similar enterprise-grade helpdesk tools. Mobility: Strong knowledge of iOS / iPhone management and JAMF . Ecosystem: Microsoft Windows, Active Directory, and Office 365 (Exchange / SharePoint). Network: Fundamental understanding of TCP ...

support, acting as the primary escalation point for complex technical incidents. Technical Management: Oversee the deployment and maintenance of the iOS / iPhone estate via JAMF / Intune . Reporting & Strategy: Manage the CMDB and helpdesk systems to produce regular statistics and trend reports. Governance: Maintain … staff) in a hands-on capacity. ITSM: Deep experience with ServiceNow or similar enterprise-grade helpdesk tools. Mobility: Strong knowledge of iOS / iPhone management and JAMF . Ecosystem: Microsoft Windows, Active Directory, and Office 365 (Exchange / SharePoint). Network: Fundamental understanding of TCP ...

feature code to identify security risks and work with engineers to mitigate them, working and applying modern security standards such as OWASP CI / CD, DSOMM, SAMM and Cloud Security Posture management systems such as Azure Defender and Prisma Cloud. Our client empowers their people to balance their … Exposure to Cloud Native software development, including cloud infrastructure and API design (Azure preferred) Proven experience applying modern standards such as OWASP CI / CD, DSOMM, SAMM etc Strong networking protocol knowledge (TCP / IP, UDP, HTTP / ...

engineering expertise across multiple platforms, such as Azure and SaaS solutions Proven experience working with modern security standards and frameworks, including OWASP CI / CD, DSOMM and SAMM Strong knowledge of networking protocols (TCP / IP, UDP, HTTP / 3, AMQP, streaming protocols), cloud networking concepts (VPNs, subnets, regions / zones) and integration technologies Hands-on experience with SAST and SCA tools such as Snyk and Checkmarx Experience with DAST tools such as OWASP ZAP or Qualys DAST (preferred), ideally working with HTTP APIs Ability ...

Radio Engineer. Major UK Provider of Radio Systems. Covering South East. Salary £50K Basic + Car / Car Allowance + Benefits. The Company Being the UKs leading independent communications suppliers, specialising in the design, supply, installation, commissioning and maintenance of wireless voice and data networks. Our client … Radio Engineering. Role Includes: Design and build of bespoke technical solutions in line with customer requirements. Provide Technical assurance to customers. Preparation CODEPLUGS / FLEET Plans for customer requirements (Motorola & Hytera). Installation, Troubleshooting and maintenance of telecommunication equipments from different vendors: Hytera, Motorola, Tait, Simoco and Kenwood. ...

complex client environments, implementing infrastructure projects, and acting as a 3rd-line escalation point for technical issues. Key responsibilities include: Providing advanced 2nd / 3rd line support and troubleshooting across servers, networks, and cloud platforms. Configuring, installing, and managing Windows Server environments and virtualisation platforms (Hyper-V / … level backup solutions using Veeam. Supporting cloud technologies such as Microsoft 365, Azure, and Google Workspace. Managing network configurations including DNS, DHCP, VLANs, IP routing, and VPNs. Assisting in infrastructure upgrades, migrations, and security deployments. Producing detailed technical documentation and contributing to project delivery. Acting as a technical ...

including advanced configuration and policy design. Strong understanding of Zero Trust architecture , secure web gateways, and cloud security principles. Expertise in networking protocols (TCP / IP, DNS, HTTP / HTTPS), VPN technologies, and identity integration (SAML, OAuth, LDAP). Familiarity with firewall … with the ability to explain technical concepts to varied audiences and uplift team capability. Desirable Attributes Relevant certifications such as Zscaler ZCCA-IA / ZCCA-PA , CCNP, CISSP, or cloud certifications (Azure, AWS). Experience in large-scale or global enterprise environments. Strong documentation, governance, and continuous improvement ...

virtual networks. Perform advanced daily system monitoring, verifying the integrity and availability of all hardware, server resources, and key processes. Utilise PowerShell / Automation tools to develop, implement, and maintain system automation and configuration management scripts. Virtual Environment Management: Oversee the administration and lifecycle management of Microsoft Servers … cloud architecture and capacity planning. Security Controls Management: Operate and manage all relevant security control tools (e.g., XDR systems, MS Defender / Intune) to ensure robust cyber security, actively reducing risk to corporate assets and ensuring adherence to internal security policies. Advanced 2nd / ...

setup. You’ll take full ownership and work closely with senior engineers, gaining exposure to production systems. Requirements 2+ years of System Administration / Infrastructure Support Linux proficiency (Command line / troubleshooting) Networking Fundamentals (TCP / IP) Python Scripting Passion ...

Dell Servers, including iDrac Knowledge of SAN's operations Profile A successful Network and Infrastructure Engineer should have: 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. Job Offer Work / ...