1 to 25 of 70 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 development team. The team provides industry leading low-latency trading … measure of success is the 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 order entry gateway development. Experience … of Linux Some Scripting knowledge Interest and some knowledge of principles of developing for low latency Relationship Builder Ability to work under pressure to meet targets Understanding of TCP / IP protocol a plus Permanent role - hybrid working - Central London based By applying to this job you are sending us your More ❯

Graduate C++ Developer / Backend Software Engineer (C++ Linux TCP / IP) Remote UK to £45k Are you a bright, enthusiastic Computer Science graduate with C++ coding skills? You could be progressing your career, working on Greenfield Cyber Security software products and learning from hugely talented team at a rapidly expanding scale … a challenging environment, working on Greenfield C++ projects. You'll be encouraged to learn and continuously improve your skillset, receiving mentoring from an elite team of technologists. Location / WFH: You can work from home most of the time, meeting up with colleagues in the London office once a month / ; quarter. About you: You are … degree educated, 2.1 or above - Computer Science or closely related discipline from a top tier / Russell Group university You have C / C++ coding skills You have a strong understanding of what's happening at low level including Networking and Operating Systems (HTTP, TCP / IP, multicast, UDP) You More ❯

audio and live performance environments Work on cross-platform solutions for Embedded Linux, macOS, and iOS Collaborate in Agile teams, contributing to sprint planning, code reviews, and CI / CD pipelines Build intuitive graphical user interfaces (GUI) with Qt / QtQuick Integrate networking features using TCP / IP for seamless … globally What We're Looking For Strong proficiency in C++ and C# Experience with multithreading and complex, concurrent software systems Familiarity with cross-platform desktop development (Embedded Linux / macOS / iOS) Understanding of Agile methodologies, CI / CD, and version control Networking knowledge (TCP / IP) Bonus: Experience or interest in Delphi, Flutter, and full-stack development Appreciation for audio mixing technology and live streaming Interest in hardware / software integration (FPGA / embedded systems) You ll Thrive Here If You Have a genuine passion for audio, music, and live performance technology Are self-motivated, proactive, and eager to solve More ❯

audio and live performance environments Work on cross-platform solutions for Embedded Linux, macOS, and iOS Collaborate in Agile teams, contributing to sprint planning, code reviews, and CI / CD pipelines Build intuitive graphical user interfaces (GUI) with Qt / QtQuick Integrate networking features using TCP / IP for seamless … globally What We're Looking For Strong proficiency in C++ and C# Experience with multithreading and complex, concurrent software systems Familiarity with cross-platform desktop development (Embedded Linux / macOS / iOS) Understanding of Agile methodologies, CI / CD, and version control Networking knowledge (TCP / IP) Bonus: Experience or interest in Delphi, Flutter, and full-stack development Appreciation for audio mixing technology and live streaming Interest in hardware / software integration (FPGA / embedded systems) You’ll Thrive Here If You… Have a genuine passion for audio, music, and live performance technology Are self-motivated, proactive, and eager to solve More ❯

Contract: Technical Consultant - EDS (Enterprise Directory Services) Start Date: ASAP Duration: 12 months Location: Hybrid - 3 days a week onsite in London and / or Surrey office Rate: £550 - £650 per day (deemed inside IR35) Reference: 19713 The Enterprise Directory Services (EDS) team engineers and manages solutions and infrastructure supporting the client's global enterprise directory services and … rather than owning product roadmaps or leading programs. In this role, you will be responsible for efficiently triaging and resolving incidents, service requests, and standard changes across AD / Entra ID, PKI, AD FS, and Quest Active Roles, ensuring adherence to SLAs. You will implement Tier-0 / DC hardening, manage GPO governance, and enhance security … through Kerberos / LDAP protections and Conditional Access / PIM controls. Your engineering expertise will be pivotal in executing changes based on SME / architect designs, utilising PowerShell and Microsoft Graph for automation and configuration management. You will conduct security remediation using tools like BloodHound / AzureHound and PingCastle, whilst also contributing More ❯

build and operate network products across all 7 layers of the OSI stack from physical through to virtual. Specialist understanding of Layer 1 - 4 Protocols for example G.9802.1 / WDM, Ethernet, VXLAN, TCP / IP, BGP, OSPF, IS-IS, Access Transport for example PON, xDSL, DOCSIS, FWA, Wireless Standards for example Wi … Fi, LTE, 5G, MEF Standards for example CE.3.0, LSO, Overlay IP / VPN technologies for example RFC2547bis, RFC7432, RFC8365 / RFC9746, Software Defined Networking and Network Instrumentation technologies for example gNMI / gRPC, Y.1731, Y.1564, TWAMPExperience of virtual infrastructure ecosystems for example Openstack, Kubernetes, QEMU, KVM, HCI across Cloud Platforms (Public / Private / Hybrid) and uCPE Platforms (x86, aRM), including open networking technologies for example routing daemons (FRR, Bird, GoBGP), ONF stack, LINUX Networking (eBFF, VPP, AF_XDP), DENT, SONiC or CumulusExperience in network programming / automation, IaC, configuration management tools and data modelling for example RESTCONF, NETCONF / YANG, Python, Ansible, Saltstack More ❯

of an enterprise network monitoring solution for Process Control Networks. The Security Solution Architect will have responsibility for the solution architecture (both functional and technical). He / She will also be accountable for all the process related aspects of architecture, which include formal engagement with the project manager, project lead architect, and the project team members … in the architecture quality plan. Produce and maintain all architecture artefacts including vision, principles, constraints, standards, high and low level design etc. Ensure that organisational standards, security solutions / methods and architectures are followed to mitigate security risks. Ensure that proposed high level and low level designs adequately mitigate identified information risks. Create technical implementation plans needed to … control systems and networks. In depth knowledge of networking devices such as Firewalls, Proxy servers, Routers, Switches, TAPs etc. In depth knowledge of networking protocols HTTP, VOIP, TCP / IP, NAT'ing etc. Good understanding of network cabling e.g. copper, fiber and their characteristics. Hold CCNA, CCNP, CCIE or similar Network / More ❯

critical business applications. Implements the balance between business and technology, provides consultancy into the project teams and defines the design and engineering governance function, signing off governance architecture / design against well-defined standards.DAY TO DAY RESPONSIBILITIES:This Senior Network ENgineer will be responsible for network design and engineering and be involved in the development, engineering and testing … and associated protocols Strong hands-on experience with Cisco IOS, Cisco NXOS, IOS-XR, Cisco hardware, Juniper Hardware and JUNIOS software, Accedian Network Interface Nodes, Ixia test generator, IP Routing and Switching. Additionally, the candidate will have MPLS experience, working knowledge of IP Firewalls, IP Load balancers and IP Multicast Strong working … knowledge and experience with: TCP / IP, Cisco IOS, Cisco NXOS, IOS-XR, Juniper JUNIOS, LAN / WAN, Service Provider / Extranet networks, Ethernet switching, including VPC / VSS, BGP, EIGRP, SNMP, L2 / L3VPN, MPLS, QoS, Traffic Engineering, Network Service Orchestration and IPSE Experience with More ❯

Corda Regression Automation Framework for Testing (CRAFT). Platforms: Deep experience with blockchain platforms, specifically Corda (private DLT) and Solana (public blockchain). Tools & Environment: Linux, shell scripting, TCP / IP networking, cloud-based test execution environments, and UI test automation tools for web applications. Skills and Qualifications: 6+ years of enterprise test engineering … cross-disciplinary teams and engaging across organisational levels. Positive, can-do attitude focused on overcoming obstacles with creativity and teamwork. Preferred: Knowledge or experience with Linux, shell scripting, TCP / IP networking, or other scripting languages. Hands-on experience with Corda or other DLT / blockchain technologies, especially Solana. Familiarity with Kotlin … and / or Rust. UI test automation experience, particularly with web applications. Exposure to JVM ecosystem and additional programming languages like C++, Objective-C, or Swift. R3 is a leading enterprise technology firm specialising in digital solutions for regulated financial markets. Our technology enables financial markets to operate with greater efficiency, transparency and enhanced connectivity. Our focus is More ❯

new technologies and platforms - document, build, and execute test plans to qualify vendor solutions, develop evaluation criteria and scoring and perform integration testing of network elements. Basic programming / coding of network tools and systems, including support for ongoing network automation to reduce reliance on individuals and allow scaling of Freshwave technologies Knowledge and Experience Practical knowledge in … all packet-based protocols such as TCP / IP (including protocols like DHCP, DNS, TCP, UDP, etc.), switching and routing protocols. Demonstrated hands-on experience configuring and managing IPsec VPNs, including site-to-site and remote access solutions for secure network communication Proficient in deploying, configuring, and maintaining network infrastructure using Juniper … FortiGate devices Detailed understanding of modern router architecture, LAN switching architecture, design and implementation. Understanding diagnostic tools, Tcpdump, Wireshark, NMAP, Netflow. Knowledge of monitoring and management tools (OSS / NMS) such as OpenNMS or similar. Network automation exposure with experience in Python software development and network infrastructure management using CLI, SNMP, NETCONF interfaces. Having Cisco network certifications - CCNA More ❯

Role / Job Title: ADMS support Engineer Work Location: UK Mode of Working: Hybrid Onsite Requirement (if Hybrid): Depends on customer Your Responsibilities: Responsible for advanced Power Systems Application software development and successful delivery of assigned functions to meet corporate project / product commitments Work with Electric Utilities or ISOs (Independent System Operators) and Distribution System … Operators (TSOs) on functional software specifications Designing, coding, testing, integration, application tuning, and delivery Essential Skills / Knowledge / Experience: Direct experience installing, maintaining, or supporting ADMS products ('Power On Fusion (PoF)' or 'Power On Advantage (PoA)') including DMS Applications, OMS Storm Assist and DER Familiarity with User Interface, SCADA, and Modeling tools Knowledge of both … Transmission and Distribution electrical grids Working knowledge of Linux, Windows, Oracle, SQL, Shell script, SOAP messages, Jasper Report, and Cassandra Working knowledge of TCP / IP protocols, IP addressing, routing, LAN, DNS, Active Directory, firewalls & switches as it applies to isolating and resolving reported issues in these areas Ability to work More ❯

Position Name: Systems Engineer (Dedicated, Onsite) Reports to: Client Technology Manager Location / Type: London, Great Britain Status: Full-Time Salaried Atlas Technica's mission is to shoulder IT management, user support, and cybersecurity for our clients, who are hedge funds and other investment firms. Founded in 2016, we have grown 100% year over year through our uncompromising … procedures Opportunity to get involved in 3rd line support and project work Requirements: 2 years of IT Experience (Desktop Support, Systems Engineering, Systems Administration) End User Support / Desktop Support: Microsoft Windows, Microsoft Office, desktop, and mobile device troubleshooting Strong verbal and written communication skills Support of primarily Microsoft 365 stack (Exchange Online, SharePoint Online, Intune, Azure … familiar with Citrix XenApp Support of Sophos or similar products for endpoint threat management Basic understanding of virtualization platforms such as VMware or Hyper-V Understanding of networking: TCP / IP, LAN / DMZ / WAN, DHCP, DNS, Routing, Switching, and Firewalls Experience working in an MSP environment The candidate More ❯

Contract: Technical Consultant - Global Computing Start Date: ASAP Duration: 12 months Location: Hybrid - 3 days a week onsite in London and / or Surrey office Rate: £550 - £650 per day (deemed inside IR35) Reference: 19717 *May be required to work out of hours and weekends* The Global Client Computing (GCC) Engineering team is responsible for engineering and delivering … requests for the global endpoint estate Engineering solutions to help automate Evergreen processes such as: Self-service testing capability for application support and development teams to consume AutoPatch / Windows Update for Business Major Windows O / S updates Developing and maintaining PowerShell scripts for endpoint management automation tasks Ensuring systems and automated processes are designed … in mind. Maintaining support documentation and issue tracking using Confluence and Jira Experience & qualifications Endpoint & access management: Experience with Microsoft Intune and SCCM, and strong understanding of MDM / MAM / Conditional Access and Defender for Endpoint. Enterprise level Group Policy and Active Directory implementation and troubleshooting skills. Desktop engineering: Advanced Windows 11 troubleshooting. Desktop and More ❯

experienced infrastructure professional with strong hands-on expertise in designing, implementing and managing: Microsoft Azure (IaaS, PaaS, networking, storage, compute, security and monitoring) Networking technologies (firewalls, VPNs, LAN / WAN, DNS / DHCP, TCP / IP, virtualisation) Enterprise security tools (SIEM, endpoint protection, vulnerability management, XDR, MDM, IDPS) Backup, replication More ❯

D into new technologies aligned with strategic goals. Key Requirements Proven experience managing IT Operations teams. Strong knowledge of Active Directory and Office 365 administration. Network administration experience (TCP / IP, DNS, WAN / LAN / Wi-Fi). Experience supporting both Windows and macOS environments. Demonstrated ability to manage More ❯

Linux Systems Administrator - Hybrid working (2 days in office / 3 days from home) Paying an attractive salary + fantastic benefits including bonus (averagely 20%), BUPA health insurance, 4 x salary life assurance, season ticket loan, excellent pension scheme, sponsorship for relevant qualifications, 25 days holiday plus ability to buy & sell, plus more This is an opportunity to … and responsibility for company data ensuring that all backup and restore procedures are adhered to and effective. Providing training, coaching and mentoring to other administrators and 1 st / 2 nd line support staff. Building and maintaining relationships with External and Internal contacts. The management of projects to implement business systems solutions and or processes for information management. … out of hours support of the IT systems. Assisting in the planning, development, documentation and testing of Disaster Recovery and Business Continuity plan, processes and procedures. Key Skills / Requirements: Hands on experience with emails systems (Dovecot, Postfix) Detailed working knowledge of server builds configuration and remote management Proficient in monitoring and logging technologies such as Zabbix and More ❯

Social network you want to login / join with: Google Cloud Architect Role: Google Cloud Architect Location: London Career Level: Associate Manager Please Note: Any offer of employment is subject to satisfactory BPSS and SC security clearance which requires 5 years continuous UK address history (typically including no periods of 30 consecutive days or more spent outside of … and operational runbooks Experience implementing foundational cloud platforms (landing zones, IAM, VPC, networking) to enable scalable and secure Google Cloud adoption Experience with Infrastructure as Code (Terraform), CI / CD pipelines, and scripting (Bash, Python, Perl, etc.) to automate routine tasks Strong understanding of cloud security best practices and tools (Identity and Access Management, firewalls, encryption) Hands-on … experience with networking across cloud and on-premise systems (TCP / IP, subnets, VPC, load balancing, DNS) Proven experience leading small technical teams to deliver solutions in a project setting, providing technical guidance and mentorship to junior team members Strong communication skills with the ability to articulate complex technical concepts to both internal and More ❯

Java Developer - Low Latency Systems (FinTech) £90000 - £130000 per annum Benefits and Bonus, Hybrid Contact email: Job ref: LL / HH / 88 Startdate: ASAP Java Developer - Low Latency Systems (FinTech) Location: London (Hybrid) Are you an experienced Java Developer with a passion for working on cutting-edge, low-latency systems? Join a dynamic and innovative … fintech, delivering high-performance solutions in the world of financial markets. We're looking for a talented Mid / Senior Java Developer to contribute to our mission of building the fastest, most reliable systems in the industry. What You'll Do: Design, develop, and maintain high-performance, low-latency Java applications for mission-critical trading systems. Work on … latency applications. Strong knowledge of multithreading, concurrency, and memory management in Java. Experience with low-level performance tuning and optimization in highly transactional systems. Familiarity with network programming (TCP / IP, UDP) and high-throughput messaging systems. Experience working in a high-performance environment, preferably within fintech, trading, or real-time systems. Excellent problem More ❯

documentation for the migration process and new proxy solution. Provide support for any post-migration issues, ensuring timely resolution. Train and hand over operations to the internal network / security team once the migration is complete. What you'llbring: Expertise in FortiProxy, Web Secure Gateway. Bringing a consultative level of approach, but this is ahands-on opportunity. Proven … and optimising performance. Previous working knowledge ofpolicy creation and migration (URL filtering, access control, etc.). knowledgeof SSL decryption and inspection on proxy appliances. Strong understanding of TCP / IP, HTTP / S protocols, and other web-related traffic. Diversity: At Opticore IT we embrace diversity and are committed to equal More ❯

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 has the largest dedicated radio engineering team in the UK. Each … customers and SME on all 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, Kenwood and Icom Site Maintenance and servicing … in major contracts Skills and Experience: 2+ years experience from within either military or commercial Radio communication RF propagation experience. Strong IT experience specifically: database management & networking topologies & TCP / IP & DMR / PMR software applications. Must either be currently SC (security cleared) or held previously and able to refresh without any More ❯

and industry regulations. You will analyze new feature code to identify security risks and work with engineers to mitigate them, applying modern security standards such as OWASP CI / CD, DSOMM, SAMM, and Cloud Security Posture management systems like Azure Defender and Prisma Cloud. What you will be doing: Analyze new feature code to identify security risks and … and our software delivery lifecycle to ensure the delivery of secure, quality systems. What you'll bring: Engineering expertise in complex Salesforce environments. Experience with Copado for CI / CD is a plus. Exposure to Cloud Native software development, including cloud infrastructure and API design (Azure preferred). Experience with modern standards such as OWASP CI / … DevOps, multi-stage pipelines, and managing large-scale software estates from an operational perspective (build, release, monitoring, rollbacks, High Availability). Strong networking protocol knowledge (TCP / IP, UDP, HTTP / 3, AMQP, streaming protocols), cloud network design (VPNs, subnets, regions / zones), and integration technologies (e.g. More ❯

cloud-native architecture. ROLE RESPONSIBILITIES: Architect, build, and operate cloud platforms across Azure using Kubernetes as the core orchestration layer. Implement and maintain Helm charts, Service Mesh (Istio / Linkerd), and GitOps workflows. Lead CI / CD automation using Azure DevOps (ADO) and YAML pipelines, including Salesforce-specific pipelines. Build and maintain Infrastructure as Code (IaC … Platform Engineering, Site Reliability Engineering (SRE), or DevOps roles supporting cloud-native enterprise environments Proficient in Microsoft Azure and AWS platforms with hands-on experience in Kubernetes (AKS / EKS), Helm charts, and service mesh technologies such as Istio or Linkerd Strong knowledge of CI / CD automation using Azure DevOps, including Repos, Pipelines, and Artifacts … monitoring tools including Prometheus, Grafana, Azure Monitor, DataDog, or Dynatrace Preferred experience supporting Salesforce DevOps pipelines and working with Java, .NET, or Node.js application environments Exposure to AI / ML platforms, real-time data pipelines, and basic networking (TCP / IP, DNS, firewalls, load balancing) Relevant certifications such as Certified Kubernetes Administrator More ❯

unresolved issues to senior engineers Assist with user onboarding, offboarding, and account setups Support Microsoft 365, Exchange, networking basics, and security issues Provide support for mobile devices (iOS / Android) Visit client sites for hardware setup and issue resolution Assist with hardware inventory and asset management Participate in project rollouts such as migrations and upgrades Contribute to the … internal knowledge base Progress to handling more complex (2nd line) issues with guidance and support What You’ll Learn (On the Job and Through Apprenticeship Training) Windows 10 / 11, Active Directory, and Microsoft 365 Networking fundamentals (DNS, DHCP, TCP / IP, Wi-Fi) Cloud and virtualisation (Azure, M365) Cybersecurity best practices … skills Administrative skills Number skills Analytical skills Logical Team working Creative Initiative Patience Positive attitude Motivated Passion for ICT Troubleshooting Hardware and software Qualifications English GCSE, grade 4 / C and above (Essential) Math GCSE, grade 4 / C and above (Essential) About the Employer JUST I.T. TRAINING LIMITED At TASIS England, we nurture and challenge More ❯

Role: L2 IT Support Engineer – 6 Week Contract Location: Croydon (on-site) Start: ASAP Rate: Circa £200 / day (Outside IR35) Enhaced DBS Certificate Overview: We’re looking for an experienced L2 IT Support Engineer to provide short-term backfill in Croydon. You’ll be responsible for maintaining and supporting all IT services across the school environment, ensuring … with at least 1 year in a senior role Strong knowledge of Windows and Mac OS Microsoft administration (Windows Server, O365, Azure, Intune, Entra ID) Networking: DHCP, DNS, TCP / IP, VLANs, switching, wireless Strong knowledge of Microsoft applications Enhanced DBS (mandatory) Desirable: IT certifications MIS systems experience (e.g. SIMS) Previous school / education sector experience Experience with SaaS / cloud support Knowledge of safeguarding in IT (web / email security More ❯

C++ Developer / Backend Software Engineer (Windows C / C++, C#) London to £70k FTC Are you a skilled C++ Developer? You could be progressing your career in a senior, hands-on role at a global market data provider whilst enjoying a range of perks and benefits. As a C++ Developer you will join an Agile … The platform has been built with C++ and C# deploying to AWS and requires high scalability and low latency - they currently handle 40 billion messages per day. Location / WFH: You'll join colleagues in the City office three days a week with flexibility to work from home the other two days. Please note this is a … month Fixed Term Contract. About you: You have C / C++ development skills on Windows OS You have full software development lifecycle experience You have a good knowledge of networking protocols e.g. TCP / IP, multicast You have a strong grounding in Computer Science fundamentals e.g. multi-threading, OOP, Data Structures, Design More ❯