101 to 125 of 287 TCP/IP Jobs in England

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 ❯

Radio Engineer. Major UK Provider of Radio Systems. North West, UK. Salary £40-45K Basic + Car / Car Allowance + Benefits. The Company Being one of 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 … 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 ❯

appliances, particularly Palo Alto and CheckPoint firewalls in enterprise environments. Design, deploy, and manage AWS cloud infrastructure, ensuring high availability, security, and per-formance. Implement and maintain CI / CD pipelines using tools like Jenkins, GitLab CI. Automate infrastructure provisioning using IaC / CaC tools such as Terraform, Ansible. Monitor, troubleshoot, and optimize systems, networks, and … with F5 load balancers expertise. Strong experience with firewall platforms: Palo Alto Networks and CheckPoint. Strong experience in Zscalar is preferrable Solid understanding of networking protocols and concepts (TCP / IP, DNS, SSL / TLS, routing, etc.). Proficient with AWS services including EC2, ELB, VPC, IAM, CloudWatch, S3,VPC Lattice, Transit 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 ❯

Role Responsibilities: Infrastructure: Maintain and enhance IT infrastructure, including VMware ESXi, Microsoft Windows Server environments, and Network Monitoring and networking components. There is some minimal work supporting AWS / Linux server infrastructure as well. Ensure system reliability, scalability, and performance through proactive monitoring and automation. Maintain and improve local network environments, including Dell servers and Dell switch configurations. … SAML, Entra Connect). Develop and manage automation solutions to streamline infrastructure deployment, management, and monitoring. Implement and optimize automation tools such as Azure DevOps (or other CI / CD pipelines), Terraform, Node-Red, and Packer. Deploy and manage monitoring tools (Zabbix, SolarWinds SentryOne, and other network / database monitoring solutions). Ensure secure cloud infrastructure … such as CIS, PCI DSS, Cyber Essentials, NIST, ISO 27001. An understanding of network security and compliance in regulated environments. Strong networking knowledge (LAN, WAN, DNS, DHCP, VPN, TCP / IP). Proficiency in firewall and load balancer technologies for secure environments. Hands-on experience with virtualization platforms (VMware, Citrix Xen) and backup solutions More ❯

software development includes: o Configuration control o Continuous Integration o Continuous Delivery or Deployment. o Unit testing and test driven development. Key Skillset Essential: Proficient in C# / C++ Microsoft Visual Studio, Eclipse, Ability to work from high level / system view into technical detail. Excellent verbal, presentation and written communication skills Knowledge of using … Microsoft Windows and Linux operating systems Desirable: Distributed simulation standards / Protocols (DIS, HLA, DDS) and web services development (JavaScript, Node JS or similar) Military Communications, Datalinks and Interfaces such as 1553 / 1760 and Ethernet TCP / IP Practical knowledge of System integration principles and processes 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 ❯

PC s and other devices to clients networks Liaising with 3rd party vendors Create, update and maintain documentation relating to clients environments Service Desk Engineer Requirements: IT Support / 1st Line Support / IT Helpdesk experience within an MSP (IT Managed Services) organisation AZ-900 and MS-900 certifications preferred IT knowledge and experience of: Active … Directory & Group Policy management Mac OSX Microsoft Azure Microsoft Office Microsoft Windows PC & Server O365 Switches, routers & firewalls, TCP / IP & network troubleshooting VPN s Exceptional client support skills with a desire to provide an excellent client experience. Confident personality with excellent written and verbal communication skills, comfortable dealing with all levels of clients 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 ❯

cabling, Wi-Fi systems, and CCTV installations Learn to identify and resolve technical problems to keep business operations running smoothly What You’ll Learn and Work With: Networking: TCP / IP, VLANs, DNS, NAT, Firewalls, VPNs Infrastructure: Cabling, Wi-Fi, CCTV systems Windows Server: Hyper-V, Active Directory, file shares Linux Server basics Office … User administration, Exchange, SharePoint Windows 10 / 11: Upgrades, antivirus, Office 365 applications Skills and Qualities We’re Looking For: A genuine interest in IT and technology Good communication skills with the ability to explain technical information clearly Strong problem-solving skills and a willingness to learn Ability to manage time effectively and prioritise tasks A positive, can … Desired Skills Communication skills IT skills Attention to detail Organisation skills Problem solving skills Administrative skills Analytical skills Logical Team working Initiative Qualifications English GCSE, grade 3 / D (Essential) Maths GCSE, grade 3 / D (Essential) About the Employer MR R WALKER Monkey Tree Holiday Park is a family-run, award-winning company known for More ❯

Software Engineer Rate: £65.00 per hour Overtime Rate: Hours worked over 37 hours per week will be calculated at time and a quarter Location: Stevenage or Bristol Hybrid / Remote working: The role will be a hybrid role of 3 or 4 days per week onsite Contract: 37 Hours per week Duration: 12 Months (initially and then ongoing … simulations and representations of real equipment. Our approach to software development includes Configuration control Continuous Integration Continuous Delivery or Deployment. Unit testing and test driven development. Skillset / experience required: Proficient in C# C++ experience would be great Microsoft Visual Studio, Eclipse, Ability to work from high level / system view into technical detail. Knowledge … of using Microsoft Windows and Linux operating systems Non-essential: Distributed simulation standards / Protocols (DIS, HLA, DDS) and web services development (JavaScript, Node JS or similar) Military Communications, Datalinks and Interfaces such as 1553 / 1760 and Ethernet TCP / IP Practical knowledge of System integration principles and processes More ❯

operations and contributing to ongoing IT improvement work. Key Responsibilities: - Provide 1st and early 2nd Line support across hardware, software, network, and user issues - Support Windows environments (10 / 11) and Active Directory (user / admin tasks) - Troubleshoot issues across desktop, laptop, printers, mobile devices and peripheral tech - Assist with Microsoft 365 admin (Outlook, Teams, SharePoint … OneDrive) - Support user onboarding / offboarding, account permissions, password resets, device setup - Help with the roll-out of new hardware and software across multiple sites - Work closely with the wider IT team on tickets, escalations, and mini-projects Technical Environment Includes: - Windows 10 / 11, Microsoft 365, SharePoint, Teams - Active Directory, Group Policy, basic PowerShell - Networking … fundamentals (TCP / IP, DNS, DHCP) - Printer management, AV software, remote support tools - ERP and reporting systems (training provided) This is a great role for someone looking to build their career in IT support within a stable, well-invested business. You’ll be supported by experienced team members, with clear progression routes on offer More ❯

Network Security Engineer - Secure Environment ?? On-site | £55,000 + Shift Allowance + Bonus + Package ?? 24 / 7 Shift Pattern | British Citizens only We're looking for a Network Security Engineer who's passionate about defending critical systems in a fast-paced, secure environment. If you're ready to step into a hands-on, operational role with … real impact - this could be the move for you. ?? The Role As part of a 24 / 7 internal security response team, you'll help protect complex network infrastructure from evolving threats. You'll support incident response, work closely with SOC analysts, and fine-tune key security tools to improve overall resilience. This role isn't just reactive … Nagios, etc.) Responding to incidents, tuning systems, and supporting change requests Collaborating with cyber and infrastructure teams to improve network defences ? What You'll Need Strong networking fundamentals (TCP / IP, DNS, VLANs, routing / switching) Hands-on experience with firewalls and secure proxy solutions Understanding of security protocols (IPSec, SSL / More ❯

Drivers licence is an absolute essential requirement. What we're looking for: Previous project experience in a Managed services capacity, with strong working knowledge of cloud technologies (Azure / AWS) Windows OS and Windows Server 2019 / 2016 migrations Office 365 maintenance and administration Networking (Firewalls, Routing & Switches, APs, TCP / IP More ❯

Drivers licence is an absolute essential requirement. What we're looking for: Previous project experience in a Managed services capacity, with strong working knowledge of cloud technologies (Azure / AWS) Windows OS and Windows Server 2019 / 2016 migrations Office 365 maintenance and administration Networking (Firewalls, Routing & Switches, APs, TCP / IP 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 ❯

the department strives to resolve incidents, implement improvements, and foster innovation to meet the evolving needs of the business. Required skills: Good knowledge of Microsoft Office, Windows 10 / 11, networking, anti-virus and other software Customer focused with a passion for delivering quality services and continual service improvement. Strong communication and interpersonal skills. Team worker able to … or persuade. A results-oriented person, capable of distinguishing between achieving a practical solution and pursuing perfection. Desired skills: Experience of PC Build management techniques. Some knowledge of TCP / IP, DNS, DHCP, SNMP and IP Security. Understanding of Firewalls and their usage. Understanding of the use of Active Directory, Microsoft Server … and o365 Qualifications: GCSE in Maths, English and ICT or equivalent qualifications / experience For full details please contact Katie Collins More ❯

Role: Senior Cyber Security Engineer (Cyber SME) Salary: Up to £70,000 Location: Reading / Birmingham - Hybrid (1 day / week in office) Be the Cyber Security Subject Matter Expert protecting the backbone of our business.Are you a highly skilled cyber security professional ready to take ownership of security engineering and infrastructure hardening? We're looking … SASE, and Zero Trust. What We're Looking For Essential: Proven experience in cyber security engineering, including vulnerability management, SIEM, WAFs, and secure infrastructure design. Strong knowledge of TCP / IP, firewalls, routing, access controls, and threat-based security approaches. Excellent communication skills with the ability to create and maintain technical documentation. Background in … infrastructure / networks and experience supporting change initiatives securely. Working towards or holding CISSP, GCIA, Security+, CCNA / CCNP, or similar certifications. Familiar with ITIL-based service delivery, security hardening, and working cross-functionally. Desirable: Degree in Computer Science or equivalent experience. Understanding of ISO27001, Cyber Essentials, and AAF frameworks. If you would like to be More ❯

role. Strong knowledge of Windows Server, Active Directory, and Group Policy. Experience with virtualization technologies such as VMware or Hyper-V. Proficiency in desktop support, including Windows 10 / 11 and Office 365. Networking knowledge (TCP / IP, DNS, DHCP, VPNs, VLANs). Familiarity with ITSM tools and ticketing systems. Excellent problem More ❯

in IAM, with expeirnece hands-on with NetIQ products. Deep knowledge of: Identity Governance Identity Manager Access Manager eDirectory, SSPR, Advanced Authentication Privileged Access Management Experience with: Windows / Linux administration Networking (TCP / IP, firewalls, proxies) Databases (PostgreSQL, Oracle, MS SQL) Web technologies (HTTP, SSL, web servers) Cloud platforms (AWS, Azure More ❯

renowned, global manufacturer based in Stevenage. They are looking for a Network Security Engineer to join their team on a full time, permanent basis working across a 24 / 7 shift pattern. This role requires DV-level Security Clearance and applicants are therefore required to be a Sole British Citizen. Responsibilities Join the Security Response team to support … network security tools Contribute to security initiatives, solve complex challenges, and have a direct impact on the overall resilience of our IT environment Requirements Strong foundations in networking (TCP / IP, DNS, routing, switching, VLANs, load balancing) and firewall technologies (Cisco, Check Point, Palo Alto). Hands-on experience with next-gen security features … IPS / IDS, SSL decryption, deep packet inspection) and secure proxy solutions (e.g. Bluecoat, F5) including SSL inspection and content filtering. Expertise in security protocols (IPSec, SSL / TLS, VPNs, 2FA), DMZ / network zoning, and monitoring tools (PRTG, Nagios). Desirable: familiarity with Darktrace Antigena, Splunk ES, or LogRhythm; adept at packet capture More ❯

storage, cloud platforms, and unified communications, and who thrives in a collaborative, service-driven environment. Key Responsibilities: Manage and support the firm's infrastructure: servers, storage, firewalls, WAN / LAN, Wi-Fi, internet, and unified communications. Administer and monitor systems including Windows Server, Azure, Entra ID, Intune, VMWare, VXRail, Rubrik, Commvault , and more. Conduct vulnerability analysis and … SharePoint Online) Azure IaaS VMware vSphere & Dell VxRail NetApp storage Juniper Mist & Cato SESE firewalls PowerShell Scripting and automation Windows Server (2008-2025) Networking: DNS, DHCP, subnets, VLAN, TCP / IP, SD-WAN, VPNs Desirable Certifications: Microsoft Azure Administrator (AZ-104) VMware Certified Professional (VCP) Juniper Mist AI (Wireless / Wired) Microsoft More ❯