51 to 75 of 217 TCP/IP Jobs in London

SCADA Operations & Maintenance Engineer

Location
City of Westminster, England, United Kingdom
immense, but so are the rewards. Join our team and help move the planet towards sustainability. For more information, please visit https: / / univers.com Job Title: SCADA Operations & Maintenance Engineer Department: Operation & Maintenance Location: U.K. Job Overview: As a SCADA Operations & Maintenance Engineer, you will … higher in Computer Science, Automation, Electronic Engineering, or a related field. Skills: Familiarity with SCADA system architecture and principles. Strong network knowledge, including TCP / IP protocols, network security and network package capture / analysis. Familiarity with common communication protocols ...

Senior Attack Monitoring Analyst, GSOC

Location
Greater London, England, United Kingdom
security events and employ a methodical and coherent response to security incidents adopting playbooks where necessary.• Competently operate a chosen SIEM (e.g., Splunk / QRadar / LogRhythm) for incident investigations, or for the development of monitoring dashboards.• Utilise playbooks, existing knowledge and accurate online resources … countermeasures.• Identify, respond and remediate cyber events generated through monitoring technologies.**EXPERIENCE:**• Preferred experience with operating or administrating a SIEM (e.g., Splunk / QRadar / LogRhythm).• Solid understanding of networks including the TCP / IP stack, typical organisation architectures ...

Director, Customer Engineering Engineering

Location
Greater London, England, United Kingdom
both technical and commercial talent. Commercial Ownership: Own the CE number for your region, segment, or domain. Lead forecasting, pipeline reviews, win / loss analysis, and strategic account planning. Be accountable for new business acquisition, retention, expansion, and platform consumption targets. GTM Strategy & Execution: Shape how Customer Engineering … areas below, with the ability to engage credibly in architecture and commercial conversations: Internet fundamentals: Strong understanding of DNS, HTTP(S), TCP / IP, BGP, SSL / TLS, and network architecture. Security: Foundational knowledge of WAF, Bot Management, Zero Trust, SASE ...

FPGA Engineer

Location
Greater London, England, United Kingdom
delivers a measurable impact. Over the course of your career at Arctic Lake, you might touch anything from raw Ethernet frame parsing and TCP / IP stack implementation at the network layer, to PCIe bus communication between the FPGA and host system, to high … experience in HDLs (e.g., SystemVerilog, Verilog, or VHDL) Proficiency in Java and Python, experience with C is desirable Familiarity with networking protocols (e.g., TCP, IP) Experience in FPGA design and verification is a plus Familiarity with FPGA toolchains like Vivado and experience with Tcl scripting ...

IT Infrastructure & Systems Manager

Location
Greater London, England, United Kingdom
Technology and IT Operations, including infrastructure design, capacity planning, and service management. Hands-on experience with System Administration and Troubleshooting across Windows and / or Linux environments, virtualization, and cloud platforms. Proficiency in Network Security, including firewalls, VPNs, endpoint protection, access control, and security monitoring. Proven ability … solutions (e.g., Syncovery, other SFTP). Networking Configure and support Cisco switches and routers. Administer FortiGate firewall environments. Strong network fundamentals: DNS, DHCP, TCP / IP, LAN / WAN, Routing and connectivity troubleshooting. Monitor network performance, availability, and security posture. Security & Endpoint ...

Microsoft SQL Server

Location
Greater London, England, United Kingdom
Refinitiv Eikon, Murex Treasury System, SWIFT Alliance Access, 1AML, SIBS, GFMS. Configure and support Cisco switches, routers, FortiGate firewall environments and DNS, DHCP, TCP / IP, LAN / WAN, routing and connectivity troubleshooting. Perform SSL / TLS certificate lifecycle management … infrastructure and applications. Experience operating within regulated and security‐focused environments. Ability to provide support to VIP stakeholders. Proficiency in Windows Server 2019 / 2022 (or equivalent), Red Hadoop, VMware vSphere / vCenter, Veeam Backup & Replication, Microsoft Office 365, PowerShell scripting, SQL Server administration, and networking ...

Director of DevOps & SRE

Location
Greater London, England, United Kingdom
responsible for the reliability, security, and scalability of theInvestorFlowplatform. This is a strategic leadership role. You will set technical direction, own the DevOps / SRE roadmap, and lead a team of technical leads, senior and mid-level engineers across both disciplines,while partnering closely with Engineering and Product … engineering and operations tooling is adopted across the organisation, an area where we are investing heavily. You Will: Strategy and roadmap. The DevOps / SRE strategy for the InvestorFlow platform, aligned to measurable outcomes across reliability, delivery throughput, and cost. The team. Leading, hiring, and developing technical leads ...

CLOUD SECURITY ENGINEER

Location
Greater London, England, United Kingdom
Requisition ID 11408 -Posted 08 / 18 / 2026 - Years of Experience (2) - Technology - Where (1) Reply specialises in designing and implementing solutions based on new communication channels and digital media. Structured as a network of highly specialised companies, Reply supports leading European industrial groups … shift security left across the full delivery lifecycle. Responsibilities: Design and implement cloud security architectures onAWS (primary), with exposure to Azure and / or GCP being advantageous Build and maintain secure infrastructure usingInfrastructure as Code (Terraform), including reusable, security-hardened modules and reference patterns Integrate security tooling ...

ASPIRE GSC-Onsite IT Support Engineer

Hiring Organisation
Hackajob Ltd
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
employer reflecting how our employees are at the very heartof whatwe do: UK & Ireland's premier AWS, Microsoft & Oracle partner 3300+ strong, €350 / £300m revenue business 10+ years as a Great Place to Work in Ireland & UK Best Workplace for Women in the UK & Ireland by GPTW … excellent customer service and build strong relationships with end-users. Handling escalations calmly & professionally Onsite presence & demonstrating end user empathy Provision of VIP / Executive support Monitor system performance and identify potential issues proactively. Conduct routine health checks of systems, applications, and networks to ensure optimal performance. Monitor ...

Distributed Network Engineer/Architect

Location
Greater London, England, United Kingdom
supporting a fast-scaling semiconductor company developing next-generation networking and security technology. They are looking to hire an experienced Distributed Network Engineer / Architect to join their fast growing team in London. This is a hands-on staff engineer position with ownership of distributed networking architecture … decisions that span multiple teams, acting as the fulcrum across their networking, security and distributed system teams. You will be taking technical (Design / Architecture / Implementation) ownership over large-scale network and control plane systems that operate at global scale across cloud and networking ...

Network Support Engineer (Enterprise Wi-Fi & LAN/WAN)

Hiring Organisation
Adecco
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£40000 - £45000/annum + Perm Benefits + On-Call
Network Support Engineer (Enterprise Wi-Fi & LAN / WAN) Location: Central London (Office-based with client site visits) Salary: £45,000 + Benefits + On-Call (Clear Career progression opportunities) About the Role We're looking for a customer-focused Network Support Engineer to join a specialist … support, deployment and troubleshooting. LAN and WAN networking. Routing and switching technologies. VLANs. Spanning Tree Protocol (STP). TCP / IP networking. IP addressing and subnetting. DNS, DHCP and VPN technologies. Firewall administration and troubleshooting. Network monitoring and diagnostics. ...

IT Security Specialist - 4197

Location
Greater London, England, United Kingdom
Operations Team, Project Management Teams, global IT Teams, and outsourcing partners to deliver solutions that enhance the security program for CLS. Essential Function / Major Duties and Job Responsibilities Strategic As part of the CLS Security Engineering team, develop and implement CLS security strategy in consultation with … compliance with cyber resilience requirements Be responsible when assigned ownership of CLS Security related Regulatory and Internal Audit finding(s), and provide effective / timely resolution Design and integrate consistent security solutions across CLS on-premise and cloud environments for domains like Vulnerability Management, Endpoint Security, Data Security ...

Senior Manager, Customer Engineering UKI

Location
Greater London, England, United Kingdom
follow architecture discussions and coach reps: Internet fundamentals: Strong foundational understanding of how the Internet works, including DNS, HTTP(S), TCP / IP, and SSL / TLS. Security: Foundational knowledge of security concepts such as WAF, Bot Management, Zero Trust … SASE, and threat mitigation. Performance: Foundational knowledge of performance concepts such as caching, latency, content delivery, and traffic steering. Platform / Cloud Fluency: Hands‐on experience with cloud platforms, edge services, APIs, automation, or developer tooling. Strongly Preferred Qualifications (The "Good-to-Haves") Cloudflare Ecosystem Expertise: Experience with ...

IP Services Engineer

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£550 - £600 per day
IP Services Engineer About the Role We are looking for an experienced IP Services Engineer to join a large enterprise technology environment, providing operational support across critical network services. This is a hands-on production support role, focused on maintaining service availability, troubleshooting complex technical issues … ownership of issues through to resolution and supporting the ongoing reliability and performance of network services. Key Responsibilities Provide operational support across enterprise IP and network services. Act as a technical point of escalation for complex network incidents. Investigate, troubleshoot and resolve business-impacting network issues. Support incident ...

Exchange SME

Hiring Organisation
Morson Edge
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - 440 per day
Exchange Messaging SME – Exchange, Active Directory & Microsoft Sentinel Job Summary We are looking for an experienced Exchange / Messaging / SME with strong expertise in Microsoft Exchange, Active Directory (AD), and Microsoft Sentinel. The successful candidate will be responsible for supporting, maintaining, troubleshooting, securing, and improving … automation. Investigate security incidents and suspicious activity. Integrate Microsoft Sentinel with Active Directory, Microsoft 365, Defender, and other security platforms. Develop Logic Apps / playbooks to automate security response. Tune alerts and reduce false positives. Technical Skills Microsoft Exchange Server / Exchange Online Active Directory Domain ...

Wi-Fi Network Support Engineer x2 (LAN/WAN) - London

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Permanent
Salary
£35000 - £43000/annum Benefits
Network Support Engineer x2 , LAN / WAN - London Location: Central London (Office based 5 days a week) Salary: £35,000 - £43,000 An established IT infrastructure and managed services provider is seeking a skilled Network Support Engineer to join its growing technical team in Central London. This … working with a diverse portfolio of customers across the hospitality sector. Essential Skills - Networking & Wi-Fi Enterprise Wi-Fi troubleshooting and support LAN / WAN TCP / IP, DNS, DHCP, VLANs and VPNs Switches, routers, firewalls and wireless access points Key Responsibilities ...

Principal Software Architect (UK)

Location
Greater London, England, United Kingdom
professional software engineering experience, spanning cloud architectures, distributed systems, and edge environments. Strong proficiency in a mix of modern programming languages including C / C++, Golang, Python, Java, or Rust. Cloud-Native & Infrastructure: Extensive hands‐on experience with cloud-native orchestration and containerization frameworks (Kubernetes, Docker, Helm). … Networking: Knowledge of high‐performance packet processing techniques (e.g., DPDK, eBPF) and low‐latency systems tuning. Proficiency in network protocols and architecture, including TCP / IP, UDP, routing, and network performance optimization. Preferred Qualifications Master's degree in computer science, software engineering, telecommunications ...

SOC Analyst - Tier 1

Location
Greater London, England, United Kingdom
events from Microsoft Defender, SIEM and other security tools. Perform initial triage and analysis of security incidents. Escalate verified incidents to Tier 2 / 3 analysts as needed. Document incidents, investigations, and response actions in ticketing systems. Assist in the maintenance and tuning of SOC tools and technologies. … Qualifications: Associate’s or Bachelor’s degree in Cybersecurity, Information Technology, or related field (or equivalent experience). Basic understanding of networking concepts (TCP / IP, DNS, firewalls). Familiarity with security tools such as SIEM, antivirus, IDS / IPS, and endpoint ...

Assembler Mainframe Developer

Location
Greater London, England, United Kingdom
provide technical guidance to the development team. Requirements: 8+ years’ Proven experience with IBM assembler coding and development, Application Development and z / OS Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with C, REXX, Python is a plus Experience … with Mainframe environment (TSO / ISPF, JCL etc) , IBM Mainframe z / OS internals (JES2, SMS, HSM); z / OS communications TCP / IP and VTAM and IBM Utilities (IEBGENER, etc.) Working knowledge of mainframe debugging tools : IPCS ...

Senior Software Engineer

Hiring Organisation
Parkside
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
major embedded software work packages from requirements through to production. Design and develop production-grade C++ applications on embedded Linux, including custom Yocto / OpenEmbedded environments. Define hardware / software partitioning, inter-processor communications, interfaces, fault handling, recovery, and software updates. Develop embedded networking and communications … including TCP / IP, UDP, QoS, SIP / RTP and VoIP. Integrate software with external network services, REST APIs, and client applications. Establish and maintain CI / CD, code review and automated testing using tools including GitLab, Gerrit and Jenkins. ...

Senior Software Engineer

Hiring Organisation
Parkside
Location
Uxbridge, Brunel, Greater London, United Kingdom
Employment Type
Permanent
major embedded software work packages from requirements through to production. Design and develop production-grade C++ applications on embedded Linux, including custom Yocto / OpenEmbedded environments. Define hardware / software partitioning, inter-processor communications, interfaces, fault handling, recovery, and software updates. Develop embedded networking and communications … including TCP / IP, UDP, QoS, SIP / RTP and VoIP. Integrate software with external network services, REST APIs, and client applications. Establish and maintain CI / CD, code review and automated testing using tools including GitLab, Gerrit and Jenkins. ...

Network Support Team Lead - (Wi-Fi, LAN/WAN) - London

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Permanent
Salary
£50000 - £55000/annum + Benefits
Network Support Team Lead - (Wi-Fi, LAN / WAN) - London Location: Central London (Office based 5 days a week) Salary: £50,000 - £55,000 Hands on position in which you will lead the Network & IT Support Team As Network Support Team Lead, you'll be responsible … service quality, customer satisfaction, and continuous improvement across the support function. Essential Skills - Networking & Wi-Fi Enterprise Wi-Fi troubleshooting and support LAN / WAN TCP / IP, DNS, DHCP, VLANs and VPNs Switches, routers, firewalls and wireless access points Team Leadership ...

Enterprise Pre-Sales Engineer

Location
Greater London, England, United Kingdom
Techary redefines the way customers procure, implement, and support their organisations' technology, providing an innovative alternative to the traditional Managed Service Provider (MSP) / Value-Added Reseller (VAR) approach. Our concept, "Technology, done differently", embodies our belief that the way our customersconsume and utilize technologyshould innovate … Excellent verbal and written communication skills. Excellent presentation skills. Keen to develop and expand knowledge. 5+ years of experience within the IT MSP / VAR industry. Knowledge of vendor portals such as Cisco's CCV, Dell's OSC, and HPE's OCA. Technical Knowledge Networking CCNP level ...

Senior Cyber GRC Specialist – Technical Controls

Location
Greater London, England, United Kingdom
Senior Cyber GRC Specialist – Technical Controls London / Hybrid Up to £120,000 Are you an experienced Cyber GRC professional with a genuinely strong understanding of cyber engineering and technical security controls? We’re working with a major global investment management organisation looking for a Senior Cyber … Knowledge of relevant financial-services regulations, ideally including FCA requirements and DORA * Strong understanding of network security principles and controls, including firewalls, IDS / IPS, TCP / IP, DHCP and DNS * Experience of security across Windows, UNIX / Linux ...

Platform Engineer – Monitoring, Observability & SIEM (MONSO)

Location
Greater London, England, United Kingdom
focus is building "as-code" platforms and automations that enable other teams to do more themselves—such as empower-ing our SOC / CyberSec team to develop (including AI-assisted workflows), test, and deploy SIEM use cases independently via CI / CD. The platform spans Splunk … Cisco XDR, and Rapid7. What will you do? Build and maintain our monitoring, observability, and SIEM tooling using modern platform engineering practices (Infrastructure / Configuration as Code). Deploy, scale, and automate platform workloads (including Splunk and custom automations) on our internal Kubernetes platform. Develop pipelines and self ...