1 to 25 of 524 TCP/IP Jobs

Job Title: IT / OT Onsite Network Engineer Location: Caerphilly Rd, Nantgarw, Cardiff CF15 7YJ, United Kingdom (Office based) Job Type: Contract (Inside IR35) Duration: 6 Months Job Summary: Join Tata Consultancy Services (TCS) as an IT / OT Onsite Network Engineer and play a vital role in supporting high-priority IT / OT … rules, network security, and micro-segmentation using VLANs, switches, and network taps. Specialize in industrial protocols: Gain hands-on experience with secure protocols such as OPC-UA, Modbus TCP / IP, Ethernet / IP, and SMB. Lead digital enablement: Deploy and manage OT business tools including remote access, file transfer … monitoring, and backups. Key Responsibilities: Support the Customer's Digital Technology Leader in delivering IT / OT security high-priority projects. Coordinate with facility, maintenance, EHS, quality, and operations teams on Secure Shop Connection projects. Provide internal and external audit support and manage integrations. Conduct OT / IT asset discovery, record management, and ongoing maintenance; liaise More ❯

TYPE: CTC OR Consultant can be on VEGATRON'S PAYROLL (W2 OR 1099) WORK AUTHORIZATION: US CITZ or GC,GC - EAD,H4 & L2 EAD,H1B CTC, NO OPT / CPT ACCEPTED BY CLIENT. RATE: OPEN - DOE JOB TITLE: GO / GOLANG Developers JOB DESCR: This is a C-C Opportunity. NO OPT / CPT. … Managers notes • 2 Lead Software Engineers + 1 Senior Software Engineer = 3 POSITIONS We are in need of three Go / Golang developers with Experience working with Go / Golang, Microservices, REST API and AWS. Experience as a Lead developer is a huge plus. Please only send me GO / GoLang developers with AWS. … of SQL and NoSQL databases • Experience deploying and scaling high-traffic services with major cloud providers (AWS, GCP, etc.) • Familiarity with Test-Driven and Behavior-Driven Development (TDD / BDD) a plus • Experience with authentication and authorization including OAuth, OpenID Connect, SAML, Encryption, SSL / TLS. • Experience with operating system IAM protocols (Nice to have) • Comfort More ❯

search on autopilot? Join our platform, complete a 6-minute AI screening interview, and get auto-applied to 100s of high-paying roles. Sign up now at https: / / app.calyptus.co / auth / candidate / sign-up and let the opportunities come to you. Responsibilities Design, build, and maintain … in Rust for high-performance applications Strong background in distributed systems design and benchmarking Experience with infrastructure-as-code tools and container orchestration Strong understanding of network protocols (TCP / IP, UDP, QUIC) Deep familiarity with monitoring stacks (Prometheus, Grafana, OpenTelemetry, etc.) Super Bonus : High-Performance Computing (HPC) experience Want to put your job … search on autopilot? Join our platform, complete a 6-minute AI screening interview, and get auto-applied to 100s of high-paying roles. Sign up now at https: / / app.calyptus.co / auth / candidate / sign-up and let the opportunities come to you. More ❯

search on autopilot? Join our platform, complete a 6-minute AI screening interview, and get auto-applied to 100s of high-paying roles. Sign up now at https: / / app.calyptus.co / auth / candidate / sign-up and let the opportunities come to you. Responsibilities Design, build, and maintain … in Rust for high-performance applications Strong background in distributed systems design and benchmarking Experience with infrastructure-as-code tools and container orchestration Strong understanding of network protocols (TCP / IP, UDP, QUIC) Deep familiarity with monitoring stacks (Prometheus, Grafana, OpenTelemetry, etc.) Super Bonus : High-Performance Computing (HPC) experience Want to put your job … search on autopilot? Join our platform, complete a 6-minute AI screening interview, and get auto-applied to 100s of high-paying roles. Sign up now at https: / / app.calyptus.co / auth / candidate / sign-up and let the opportunities come to you. More ❯

Join a rapidly expanding cyber security scale-up where you'll work on cutting-edge network security platforms alongside elite technologists.* *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 … 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 * You have C / C++ coding skills * You have a strong understanding of what's happening at low level including Networking and Operating Systems ( TCP / IP, multicast, UDP) * You have good Linux knowledge including low level (Daemon, Kernel) * You have More ❯

Role: IT / OT Onsite Network Engineer Location: Cardiff, UK Duration: Contract Job Description: Your responsibilities: Coordinate with facility & maintenance, EHS, quality, and operations teams on Secure Shop Connection projects, Provide Internal Audit, External Audit and Integrations Support Conduct OT / IT asset discovery, record management, and ongoing maintenance, Liaise with third-party suppliers for asset … inventory data Build and maintain documentation to demonstrate compliance with IT / OT controls, Identify, document, and manage IDF / MDF infrastructure at sites Oversee hardware procurement processes Support shop floor asset connectivity to the network Perform malware scanning as per SOP / policies and work with Customer’s Cybersecurity to remediate infections on … OT devices, Patch management for vendor provided PCs, Vulnerabilities and incident management Install and manage Nozomi network taps Configure and deploy IT / OT network infrastructure (e.g., switch installations) in alignment with Customer-approved design standards Implement removable media controls, particularly for third-party suppliers Develop recovery and backup solutions with suppliers of critical OT, Schedule and execute More ❯

specialise in Identity Verification, Managed Endpoints, Threat Detection, Secure Remote Access, and Adaptive Security Policies—balancing exceptional user experience with enterprise-grade security. We operate under an ISO / IEC 27001-certified ISMS and an ITIL-aligned service management framework, ensuring integrity, resilience, and operational excellence. Joining Zero Plus means being part of a growing, people-first organisation … infrastructure as a code practice. Key Responsibilities Design, deploy (IaC), and manage cloud networking solutions across Azure and AWS including, but not limited to, private hosted environment (VPC / Vnet), private connectivity (endpoint, VPN services, etc.) Physical / Virtual / WebApp Firewalls for access controls, and threat detection. Automate provisioning and configuration using Terraform … Ansible, Azure CLI, and PowerShell. Contribute to CI / CD integration for infrastructure as code. Support and evolve exiting topologies and connectivity solutions. Escalation points for connectivity issues with cloud systems and resources. Monitor and optimise performance across hybrid, cross-tenancy, and multi-cloud environments. Implement observability tooling. Ensure compliance with ISO27001 standards, Zero Trust principles, and Well More ❯

specialise in Identity Verification, Managed Endpoints, Threat Detection, Secure Remote Access, and Adaptive Security Policies—balancing exceptional user experience with enterprise-grade security. We operate under an ISO / IEC 27001-certified ISMS and an ITIL-aligned service management framework, ensuring integrity, resilience, and operational excellence. Joining Zero Plus means being part of a growing, people-first organisation … infrastructure as a code practice. Key Responsibilities Design, deploy (IaC), and manage cloud networking solutions across Azure and AWS including, but not limited to, private hosted environment (VPC / Vnet), private connectivity (endpoint, VPN services, etc.) Physical / Virtual / WebApp Firewalls for access controls, and threat detection. Automate provisioning and configuration using Terraform … Ansible, Azure CLI, and PowerShell. Contribute to CI / CD integration for infrastructure as code. Support and evolve exiting topologies and connectivity solutions. Escalation points for connectivity issues with cloud systems and resources. Monitor and optimise performance across hybrid, cross-tenancy, and multi-cloud environments. Implement observability tooling. Ensure compliance with ISO27001 standards, Zero Trust principles, and Well More ❯

familiarity to accomplish project tasks. The Engineer should be capable of consulting, designing, testing, implementing, managing capability requirements and integrating of Cloud solutions into varied environments. Job specifics / responsibilities: Identify, architect, design and implement new automation workflows that: Meet the client requirements; Integrate with the ES standard management tools. Perform flow and software modification after the solution … been brought in production. Install and upgrade the infrastructure components. Promote standardization and automation during implementation. Ensure implementation are aligned with engineering repositories (Playbooks, CMR) and Portfolio websites / repositories (What we sell, DXC Portfolio portals). Ensure that existing implementation / deliverables / templates are leveraged to satisfy new work requests. Ensure applicable … content standards are met. Ensure peer review deliverables are logged. Store engineering related collateral in approved configuration management repository. Produce / review / participate Low Level Designs based on High Level Designs and client requirements. Ensure projects and tasks to be performed with the highest quality and according to documentation in predefined timelines. Key deliverables / More ❯

Position: Controls & Automation Engineer Location: Worcestershire Salary: £50,000 to £60,000 + Excellent Benefits / Prospects If there’s something stopping you from achieving all you’re capable of, you’ll relish a role with a company that will positively encourage you to be pro-active – a real opportunity to release your true potential. The Company: Our … We anticipate that you will have: Experience in the design of Controls for Bespoke Automated Systems. Working familiarity with the following advantageous but not essential: Siemens TIA Portal / Siemens / Simatic WinCC / Siemens Sinamic drives / Profinet & Profisafe Networks / Modbus TCP / IP, Modbus RTU, OPC UA / DA / Prodiag / Inductive Automation Ignition platform / Rockwell RSLogix 5000 / Studio 5000 Ability to interpret customer specifications & evaluate customer products & designs. You will be self-motivated, have excellent communication skills both written and oral, be computer literate, and able to More ❯

technical issues, communicating with non-technical users, and escalating issues as needed. The role includes software installation, computer imaging, and other related IT tasks. Key Responsibilities: Provide desktop / laptop / thin client support both desk-side and remotely. Install, patch, and troubleshoot Windows 7 / 10. Troubleshoot issues with Microsoft 2019 and Office … products. Configure and troubleshoot Windows networking (TCP / IP Escalate issues to next-level support or management as appropriate. Troubleshoot issues with Microsoft Edge and Google Chrome. Provide support using remote tools. Install and troubleshoot a variety of in-house developed and third-party software. Troubleshoot desktop and network printer issues. Support Google Workspace … Directory (client-side Implement hard drive encryption, preferably using Bitlocker and McAfee. Modify system registry as needed. Qualifications: Required Experience: 4 years of experience in PC support (desktop / laptop / thin client 4 years of experience with Windows 7 / 10 installation, patching, and troubleshooting. 4 years of experience troubleshooting Microsoft 2019. More ❯

opportunities for leadership. Key Responsibilities: Address customer issues with ADMS applications (SCADA, DMS, OMS, Storm Assist, DER). Troubleshoot, analyze root causes, and resolve platform defects. Run FAT / SAT scripts, analyze results, and manage defect categorization. Lead or support ADMS upgrades, installations, and configurations. Monitor and manage replication group setups for data consistency across environments. Contribute to … teams, vendors, and stakeholders to ensure system stability and performance. Design metamodels and support CIM-based data transformation for application modelling. Provide domain and technical leadership for ADMS / EMS / SCADA delivery projects. Technical Skills & Experience: Proven experience in ADMS / EMS systems and DMS applications. Hands-on knowledge of DNAF, OMS, DER … SCADA, and model-based application development. Proficiency in Oracle SQL, Linux, Python, C / C C#, and scripting tools. Experience with Docker, Jenkins, Jasper Reports, and Cassandra. Familiarity with UI design, modelling tools, and CIM standards. Strong grasp of distribution and transmission electrical grids. Working knowledge of TCP / IP, DNS More ❯

be resolved by Tier 1 staff. Lead advanced troubleshooting efforts for diverse operating environments, including Windows ecosystems, the O365 suite, virtual environments, and sophisticated network connectivity issues (advanced TCP / IP diagnostics, VPN infrastructure). Perform in-depth Root Cause Analysis (RCA) for recurring issues, collaborating directly with engineering and cybersecurity teams to implement … Experience Current DoD 8570 IAT Level II certification (e.g., Security+ CE, CySA+, GSEC, SSCP, etc.) is mandatory. Deep, hands-on expertise in Microsoft enterprise environments, including Windows 10 / 11, Azure AD / Entra ID administration, M365 administration, and Group Policy Management (GPO) configuration and troubleshooting. Proven ability to perform in-depth troubleshooting of networking protocols … TCP / IP fundamentals, DNS, DHCP, VPNs, basic routing / switching concepts). Strong experience with scripting for automation and diagnostics (PowerShell required). Proficiency in administering and troubleshooting enterprise management tools (SCCM / MECM, Intune / Endpoint Manager) and enterprise ticketing systems. Exceptional analytical and problem-solving More ❯

Directory Troubleshooting MS Office, antivirus software Analysing, prioritising and fixing all requests for both Head Office and Field staff and escalate issues to 3rd line as appropriate Configuring / decommissioning users Building and configuring desktops / laptops Monitoring and checking backups, capacity, security, hardware / software and operating system issues with the fileservers and … network equipment Monitoring and checking system logs Ensuring anti-virus / anti-spam is current and kept up to date on all devices Assisting and participating in project work Ensuring prioritisation of daily workload Assisting with the rollout of software updates for both Head Office and Field users (SCCM knowledge would be beneficial to this role) Overseeing stock … Line Support Participation in IT projects Software deployment and patch management Asset and inventory management What we need from you: Proven experience working in a Service Desk function / 1st Line Support Strong expertise in Windows 10 / 11 Proven experience with MS Office 365 Ability to work independently on 2nd line technical issues Strong understanding More ❯

This position is a pay grade 10, 13 or 16. Please see Pay Grade Table at: Occupational Category: Professional Department: Endpoint Services Division: Information Technology Open Date: 07 / 31 / 2025 Open Until Filled: Yes Educational and Experience Requirement: System Administrator I Endpoint Management: Bachelor's degree with a major in computer science or related … Redundant Array of Independent Disks (RAID), enterprise-class server and direct-attached storage, as well as server virtualization. Understanding of Transmission Control Protocol / Internet Protocol (TCP / IP), Domain Name System (DNS), Simple Mail Transfer Protocol (SMTP), and File … Fibre Channel Storage Area Network (SAN) and Network Attached Storage (NAS), as well as server virtualization. In-depth knowledge of Transmission Control Protocol / Internet Protocol (TCP / IP), Domain Name System (DNS), Simple Mail Transfer Protocol (SMTP), and File More ❯

Support Engineer, you will be responsible for the end-to-end lifecycle of our firmware, from design and development to post-deployment support. Your expertise in Modbus RTU / TCP and M-Bus will be critical. Key Responsibilities: Design & Development: Create, develop, and test firmware for a range of embedded systems and IoT devices . Protocol … in the implementation and optimisation of Modbus and M-Bus communication systems . Debugging & Troubleshooting: Investigate and resolve complex issues related to firmware, hardware, and network connectivity (including TCP / IP , Ethernet ). Customer-Facing Support: Act as the primary technical contact for customers, providing clear, expert support on our products and protocols. Hardware … commercial experience as a Firmware Engineer or Embedded Software Engineer. Strong, hands-on experience with Modbus and M-Bus communication protocols. Proficiency in embedded software development practices (C / C++ is often implied). Solid understanding of computer networking (TCP / IP, DHCP, Ethernet). Excellent analytical and problem-solving skills for More ❯

security, and ideally, you will have some degree of experience or exposure in at least 3 of the following: Pen testing, web dev frameworks (React, Flask, etc.) Networking (TCP / IP, routing / switching) Cryptography (applied, PQC, symmetric & asymmetric) OS internals (Windows, Linux, MacOS) Hardware testing, including embedded systems, firmware analysis, or … on our career opportunities. If you do not want us to retain your details, please email global.ta@nccgroup.com. All personal data is held in accordance with the https: / / www.nccgroupplc.com / media / mjhmbcmj / candidate-privacy-notice-261023.pdf . We are committed to diversity and flexibility in the … on government-related projects requiring security clearance. As such, applicants must: Have unrestricted and permanent right to work in the UK (e.g. British or Irish citizen, or settled / pre-settled status under the EU Settlement Scheme). Have been continuously resident in the UK for the past five years , to meet the baseline criteria for Security Check More ❯

security, and ideally, you will have some degree of experience or exposure in at least 3 of the following: Pen testing, web dev frameworks (React, Flask, etc.) Networking (TCP / IP, routing / switching) Cryptography (applied, PQC, symmetric & asymmetric) OS internals (Windows, Linux, MacOS) Hardware testing, including embedded systems, firmware analysis, or … on our career opportunities. If you do not want us to retain your details, please email global.ta@nccgroup.com. All personal data is held in accordance with the https: / / www.nccgroupplc.com / media / mjhmbcmj / candidate-privacy-notice-261023.pdf . We are committed to diversity and flexibility in the … on government-related projects requiring security clearance. As such, applicants must: Have unrestricted and permanent right to work in the UK (e.g. British or Irish citizen, or settled / pre-settled status under the EU Settlement Scheme). Have been continuously resident in the UK for the past five years , to meet the baseline criteria for Security Check More ❯

Reliance High-Tech / Reliance Protect is the UK's largest independent integrator / installer of security solutions / lone worker solutions. We are trusted by leading brands and organisations to protect their people, assets and reputations through innovative technology and specialist expertise. Unique in the industry, Reliance High-Tech / Reliance … clients, in the most demanding and complex environments with the highest stakes, and always with integrity and customer focus. To provide professional engineering expertise along with excellent internal / external customer service during the repair and maintenance of a variety of security solutions (including CCTV, Intruder, ACS, Intercom Systems plus other security solutions). Your responsibilities Provide Remote … engineers, this includes but not limited to, incident triage, remote resolution, firmware upgrades and patching Provide technical expertise in fault finding and repairs across varied selection of PC / Network based and analogue security systems with a working knowledge of different high end software packages. Provide technical expertise in fault finding and repair with a variety of CCTV More ❯

Reliance High-Tech / Reliance Protect is the UK's largest independent integrator / installer of security solutions / lone worker solutions. We are trusted by leading brands and organisations to protect their people, assets and reputations through innovative technology and specialist expertise. Unique in the industry, Reliance High-Tech / Reliance … clients, in the most demanding and complex environments with the highest stakes, and always with integrity and customer focus. To provide professional engineering expertise along with excellent internal / external customer service during the repair and maintenance of a variety of security solutions (including CCTV, Intruder, ACS, Intercom Systems plus other security solutions). Your responsibilities Provide Remote … engineers, this includes but not limited to, incident triage, remote resolution, firmware upgrades and patching Provide technical expertise in fault finding and repairs across varied selection of PC / Network based and analogue security systems with a working knowledge of different high end software packages. Provide technical expertise in fault finding and repair with a variety of CCTV More ❯

to service allows for nationwide donation, transplantation, and distribution of organs and tissues while maintaining close ties to our local communities. DCI Donor Services operates three organ procurement / tissue recovery organizations: New Mexico Donor Services, Sierra Donor Services, and Tennessee Donor Services. We also maximize the gift of life through the DCI Donor Services Tissue Bank and … safe with us because we are a model for fairness, belonging, and forward thinking. Key responsibilities this position will perform include: Network Administration Design, configure, and maintain LAN / WAN infrastructure, including routers, switches, wireless access points, load balancers, and firewalls. Implement and manage VLANs, routing protocols, and Quality of Service (QoS) to optimize network performance. Monitor network … up-to-date network documentation, including topology diagrams and configuration records . Network Security and Compliance Implement and manage network security controls, including firewalls, VPNs, and intrusion detection / prevention systems (IDS / IPS) Monitor network traffic for anomalies and respond to security incidents in coordination with cybersecurity teams. Enforce access controls, segmentation, and secure configurations More ❯

builds. Supporting electrical problem-solving during the manufacturing build process. Maintain, develop and support existing control systems at customer sites within the UK and overseas. Previous Experience / Qualifications: Minimum of 3+ years of industry experience in PLC / HMI programming. Experience in planning, developing, programming and testing control systems with PLC automation software … on projects from start to finish, using Allen Bradley and / or Siemens PLCs, HMIs and control gear. Machinery safety training and / or experience Sound understanding of electrical control gear, industrial automation and implementation of communication protocols (Profinet / Profibus, EtherNet / IP, TCP / IP, serial, OPC, IO-link, etc.) Minimum of 3+ years of experience using AutoCAD Electrical or a similar package. Experience and knowledge of designing and creating electrical panel layouts within electrical CAD software. Educated to degree level, preferably in Electrical Engineering or related fields (2.1 or above). Knowledge of robotics. (Desirable) Additional Information: Please note More ❯

Required Skills & Experience Minimum 5 years’ hands-on experience in an AV installation role Commercial installation experience including construction site environments Strong knowledge of digital and analogue audio / video signal flow and routing Ability to plan, install and commission video distribution systems (HDCP, EDID, resolution / scaling, latency etc.) Confident with control protocols such … as RS232 / 485, IR and TCP / IP Understanding of AV over IP technologies (Dante, VoIP etc.) Good working knowledge of IP networking principles (VLANs, IP addressing, multicast / unicast, IGMP) Experience with commercial TV distribution systems (IRS / IPTV) Competent … and work safely at height Full UK driving licence Strong organisational skills and ability to prioritise work effectively Desirable Qualifications (Training can be provided where required) IPAF 3a / 3b / IPAF 1a / 1b PASMA Asbestos Awareness Ladder Safety / Working at Height Emergency First Aid at Work Disclosure certification Beneficial More ❯

time management and the ability to prioritise multiple responsibilities Nice to have (but not essential) Experience of working in an application support role Quality Assurance certification and experience / knowledge of web testing methodology Experience / knowledge of ITIL • Understanding of LAN / WAN technologies - TCP / IP, Ethernet, ADSL, VPN etc. Experience / knowledge of Kerridge / Rev8 DMS Application At Arnold Clark, we are adopting SFIA Version 9 framework for all roles that require digital / IT skills. In the case of this role, we have reviewed the required skills and skill levels that we regard as essential. … To find out more about SFIA and version 9 of the framework, you can visit: https: / / sfia-online.org / en You may be asked to provide evidence as to how you are already operating at these skill levels if you are invited to interview with us. Our culture Arnold Clark is committed More ❯

from Help Desk and provide technical assistance to end users Assist in telecom phone setup using Cisco Unified Communications Manager and Cisco Unity Connection Administration to create extensions / voice mail and modify users’ phones when requested Setup, dismantling and relocating users’ desks Manage and maintain technology equipment inventory in asset management system Ensuring all Video Conference requests … in accordance with the requestor’s wishes Maintain strong knowledge of third-party video conference systems. Including but not limited to: WebEx, Zoom, MS Teams Travel to Europe / Paris office to provide on-site support to firm’s Paris-based community Technology Support Specialist Skills & Requirements: Bachelor’s degree or Professional certification preferred; similar to A+, N+ … with current Windows Operating Systems, Microsoft Office, Citrix, VPN, Interwoven FileSite, Innova template and other legal industry application Strong knowledge of desktop hardware and peripherals, phones, and A / V equipment (PCs, notebooks, printers, scanners, mobile phones (iOS and Android) Knowledge of network and Internet technologies, protocols and concepts (TCP / IP More ❯