1 to 25 of 44 TCP/IP Jobs in London

Security Analyst

Hiring Organisation
Precise Placements
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £80,000 per annum
Security Analyst - CISSP, CISM, CEH, EDR, SIEM, SOAR, IDS / IPS, TCP / IP, Defender Our leading global law firm client are currently looking to take on a new Security Analyst (CISSP, CISM, CEH, EDR, SIEM, SOAR, IDS / IPS, TCP / IP, Defender) to join their team on a permanent basis. The firm are an extremely modern law firm which offer a healthy hybrid working solution 2-3 days per week in London and offer a great deal of autonomy ...

VoIP Operations & Production Release Engineer

Hiring Organisation
StableLogic
Location
Greater London, England, United Kingdom
production environments and coordinate maintenance windows with carriers, customers, and internal stakeholders. · Define and enforce release governance: change tickets, deployment runbooks, pre / post-checks, and back-out plans for every change. · Drive continuous improvement of CI / CD pipelines (e.g., GitLab CI, Jenkins, GitHub Actions … Conduct post-release reviews and feed lessons learned back into engineering. VoIP Platform Operations · Operate, tune, and troubleshoot Kamailio as the SIP edge / registrar / proxy: dispatcher, dialog, permissions, auth, accounting, TLS, NAT traversal, RTPengine integration, scripting in KEMI / native config. · Operate ...

Technical Account Manager, Equities & FX

Hiring Organisation
OneChronos
Location
City of London, London, United Kingdom
Guide clients through onboarding and testing, ensuring adherence to MTF requirements and trading rules. Troubleshoot client connectivity or trading issues (including FIX sessions, TCP / IP connectivity, firewall or routing matters), escalating to technology & engineering teams where necessary. Trading & Market Technical Operations Monitor live … client connectivity or technical infrastructure. Strong knowledge of European financial markets, particularly equities and FX trading landscape. Familiarity with Networking, networking fundamentals (TCP / IP, multicast, firewalls, VPNs), FIX protocol, market data feeds, and order / trade lifecycle processes. ...

Golang Engineer

Hiring Organisation
Searchability (UK) Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
Salary
£60,000
GOLANG ENGINEER ESSENTIAL SKILLS Strong commercial experience with Go (Golang) Solid Linux experience (command line, system-level understanding) Strong understanding of networking concepts (TCP / IP, protocols, performance) Experience building scalable, distributed systems Strong problem-solving skills and attention to detail TO BE CONSIDERED … Please either apply through this advert or email me directly via . For further information please call me on 0203 763 3888 / 07704 152 638. By applying for this role, you give express consent for us to process and submit (subject to required skills) your application ...

TOC Network Engineer, Cingularity

Hiring Organisation
IMG
Location
London Area, United Kingdom
distribution services to premium broadcast networks and sports rights holders globally. Please follow this link to understand more about Cingularity’s work: https: / / cingularity.tv / what-we-do / IMG acquired Cingularity in September 2022 to provide the expertise … sales, multi-channel content production and distribution, brand partnerships, strategic consulting, digital services, and events management. It powers growth of revenues, fanbases and IP for more than 200 federations, associations, events, and teams, including the National Football League, English Premier League, International Olympic Committee, National Hockey League, Major ...

Director Cloud Native Architects, EMEA

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
role is accountable for building a repeatable operating system that improves deal quality, increases opportunity predictability, and drives measurable revenue impact (ARR / NRR) in partnership with the Theater Sales organisation, Product teams, and regional stakeholders. Success is reflected across People / Process / Partnership / Product , deliberately prioritised to maximise the Director’s most constrained resource: time . People: Building, developing, and inspiring a high‐performing team with strong technical credibility and ownership. Process: Applying context and rigor in ways that improve focus, decision‐making, and execution without creating ...

Security Proxy Engineer

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600 per day
Security Proxy Engineer | £500-£600p / day (Inside IR35) | 6 months (initially) | London (3 days on site) | ZScaler / Netskope / Bluecoat A client of ours is looking for an experienced Security Proxy Engineer to support and enhance its enterprise proxy and secure egress … aligned to strict security and governance standards, while also providing hands-on operational support. Location: London, 3 days on site Rate: £500-£600p / day (Inside IR35) Contract length: 6 months (very strong possibility of extension due to the length of the project) Key Responsibilities: Provide ...

Vice President, Platform Engineering - Windows SRE

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
remediation plans* Develop standard operational procedures and produce effective documentation* Analyse workloads and devise suitable cloud migration strategies where appropriate* Ensure all project / investment workloads are delivered according to plans and budget defined* Liaise with Infrastructure Control and IT Risk teams to satisfy internal and external … detected promptly and satisfactorily resolved* Ensure sufficient capacity is available to accommodate drive growth* Respond to emails sent to the team distribution list / mailboxes in a timely manner* Handle incidents and requests with efficiency and a “customer first” mindset* Maintain infrastructure in a highly available, reliable, secure ...

Senior Security Proxy Engineer

Hiring Organisation
Infoplus Technologies UK Ltd
Location
London, United Kingdom
Employment Type
Contract
proxy and secure web gateway services under defined standards. Manage proxy policies for web access control, traffic inspection, TLS decryption, and egress IP enforcement. Execute routine operational tasks including configuration changes, upgrades, patching, and vendor recommended updates. Monitor proxy service health, availability, and performance, identifying and resolving … teams to deliver stable proxy services. Escalate design gaps, operational risks, or recurring issues to senior engineers or architects. Your Profile Essential skills / knowledge / experience: 6 years of hands on experience supporting enterprise proxy or secure web gateway platforms. Strong understanding of HTTP / ...

Senior Clinical Scientist in Clinical Scientific Computing

Hiring Organisation
University College London Hospitals NHS Foundation Trust
Location
London, NW1 2PG, United Kingdom
Salary
£66274.00 to £73496.00
highest percentage of staff who said they would recommend us as a place to work, out of all general acute or acute / community NHS trusts in England for the third year in a row. UCLH recognises the benefits of flexible working for staff To find out more … Knowledge and Qualifications Essential 1st or 2nd class honours degree in computer science, a physical science, engineering, or equivalent PhD or equivalent (MSc / MEng with additional specialist training or research experience) in a relevant field, or an equivalent level of knowledge obtained through a combination of qualifications ...

Technical Leader

Hiring Organisation
Colt Technology Services UK
Location
East London, London, United Kingdom
Employment Type
Permanent, Work From Home
hours support for priority incidents. What were looking for Required Technical Skills Windows & VDI Advanced administration and troubleshooting of Windows Server (2016 / 2019 / 2022). Strong knowledge of Active Directory, Group Policy, DNS, DHCP, and PKI. Strong knowledge of Citrix Virtual Apps and Desktops … architecture, governance, and cost optimization. Familiarity with automation tools (PowerShell, Terraform) and DevOps principles. Virtualization, Storage & Networking (Working Knowledge) Understanding of VMware vSphere / ESXi architecture and clustering concepts. Familiarity with enterprise storage technologies (e.g., Pure Storage, HPE) and SAN / NAS fundamentals. Solid grasp ...

Linux Systems Administrator - Intermediate - Financial / Banking

Hiring Organisation
N P Associates
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £70,000 per annum
Linux Systems Administrator - Intermediate - Financial / Banking Working in a busy and vibrant Financial / Banking environment, candidates will have a minimum of 2+ years Red Hat Linux systems Administration with some Scripting - Bash / Python - and ideally some SQL / Database … learn new skills. Responsibilities and Duties Monitor and support live trading platforms during operational hours. Participate in a support rota of early / late shifts supporting exchange hours 7am - 6.30pm to provide 1st and 2nd line support for IT infrastructure. Manage and respond to queries / ...

System Administrator - Hybrid

Hiring Organisation
Exposed Solutions
Location
North West London, London, United Kingdom
Employment Type
Permanent
Salary
£50,000
SystemAdministrator(DevOps / AWS / Infrastructure) TheOpportunity Wereworkingwithagrowing,technology-drivenorganisationlookingtohirea SystemAdministrator withstrong DevOpsandinfrastructureexperience .Thisisahands-onrolewhereyoullplayakeypartinmaintaining,optimising,andscalingcriticalsystems. Youllcollaboratecloselywithdevelopmentandoperationsteamstoensurehighavailability,performance,andsecurityacrosstheenvironment. KeyResponsibilities Manageandmaintainserverinfrastructure(Linux / Windowsenvironments) Supportandoptimisecloudplatforms,particularly AWS ImplementandmaintainCI / CDpipelines Monitorsystemperformance,availability,andsecurity Troubleshootcomplexinfrastructureandnetworkingissues Automateroutinetasksusingscriptingandcommand-linetools Supportdeploymentsandenvironmentconfiguration KeySkills&Experience Provenexperienceasa SystemAdministrator … orsimilarrole Strongknowledgeof AWS (EC2,S3,IAM,VPC,etc.) Solid DevOps understanding(CI / CD,automation,infrastructureascode) Strongcommand-lineskills(Bash,PowerShell,orsimilarscripting) Experiencewith servermanagement (patching,monitoring,performancetuning) Goodunderstandingof networkingconcepts (DNS,TCP / IP,firewalls,routing) FamiliaritywithtoolssuchasDocker,Kubernetes,orsimilar(desirable) ALLAPPLICANTSMUSTBEFREETOWORKINTHEUK ExposedSolutionsisactingasanemploymentagencytothisclient. Pleasenotethatnoterminologyinthisadvertisintendedtodiscriminateonanygrounds,andweconfirmthatwewillgladlyacceptapplicationsfromanypersonforthisrole. ...

Cloud DevOps Engineer/ Linux Administrator Banking Financial Trading

Hiring Organisation
Stream Search Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Cloud DevOps Engineer / Linux Administrator Leading FinancialCity London Office / WFH blend Must live within a daily commute of London £125K plus package and Bonus Banking Financial Trading environment background Essential My client a leading Financial Exchange is seeking a highly capable Cloud & DevOps Engineer … DevOps team working across low-latency trading platforms, cloud environments, and on-prem systemscontributing to both strategic projects and hands-on engineering.Required Skills / ExperienceStrongLinux system administration(RedHat / CentOS or similar). Experience gained designing, implement and operating hybrid cloud systems on multi-accountAWS DevOps ...

Application Support Engineer – Endpoint Security

Hiring Organisation
TDA
Location
City of London, London, United Kingdom
diagnostics — not web development. What you’ll do: Lead web integration & compatibility (auth flows, cookies, headers, browser behaviour) Troubleshoot issues across browser, proxy / isolation, and application layers Work closely with security & network teams to resolve complex issues Document configurations, fixes, and known issues What we’re looking … Strong web fundamentals & browser troubleshooting experience Knowledge of proxies, DNS, TCP / IP, and networking basics Experience with Menlo Security (or similar) (Island.io, Prisma Browser, Chromium, SURF) Scripting (Python / Bash) and cloud exposure (AWS / Azure / ...

Network Security Engineer

Hiring Organisation
BTC Capital Markets Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 45,000 - 50,000 Annual
Network Security Engineer BTCC Location: To Be Confirmed Contract Type: Full-Time, Permanent Working Model: On-site / Hybrid (as applicable) Industry: Cryptocurrency / Blockchain / Fintech About BTCC Founded in 2011, BTCC is one of the world s longest-running cryptocurrency exchanges, delivering … organisational and regulatory requirements. What You Bring 3 5 years of hands-on experience in network security engineering. Strong understanding of networking principles, TCP / IP, routing, switching, and firewall technologies. Proven experience managing FortiGate firewalls and FortiSASE solutions. Familiarity with ...

Network Security Engineer

Hiring Organisation
BTC Capital Markets Ltd
Location
SE1, Chaucer, Greater London, United Kingdom
Employment Type
Permanent, Contract
Salary
£45000 - £50000/annum
Network Security Engineer | BTCC Location: [To Be Confirmed] Contract Type: Full-Time, Permanent Working Model: On-site / Hybrid (as applicable) Industry: Cryptocurrency / Blockchain / Fintech About BTCC Founded in 2011, BTCC is one of the world’s longest-running cryptocurrency exchanges, delivering … organisational and regulatory requirements. What You Bring 3–5 years of hands-on experience in network security engineering. Strong understanding of networking principles, TCP / IP, routing, switching, and firewall technologies. Proven experience managing FortiGate firewalls and FortiSASE solutions. Familiarity with ...

System Administrator - Hybrid

Hiring Organisation
Exposed Solutions
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £50,000 per annum
System Administrator (DevOps / AWS / Infrastructure) The Opportunity We’re working with a growing, technology-driven organisation looking to hire a System Administrator with strong DevOps and infrastructure experience . This is a hands-on role where you’ll play a key part in maintaining … with development and operations teams to ensure high availability, performance, and security across the environment. Key Responsibilities Manage and maintain server infrastructure (Linux / Windows environments) Support and optimise cloud platforms, particularly AWS Implement and maintain CI / CD pipelines Monitor system performance, availability, and security ...

Cyber Security Engineer

Hiring Organisation
Transact
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 per annum
team you will help to design, develop, and mature the companys cyber security capability, including the selection, implementation, and management of security tools / technologies, focused on detection, prevention, and analysis of security threats. This role offers a great opportunity to help define and shape the security function … network protocols: knowledge of standard network protocols like TCP, ARP, ICMP, DHCP, DNS, HTTP, SNMP, VPN etc., and accompanying protocol / packet analysis / manipulation tools. Understanding of key operating systems and network appliances and the ability to assess their security ...

Senior Sales Engineer

Hiring Organisation
Get2Talent
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
demonstrations, PoCs, and troubleshooting activities Collaborate closely with product and engineering teams to provide market feedback and influence roadmap direction Contribute to RFP / RFI responses, technical documentation, and whitepapers Build and maintain strong relationships with customers, integrators, and service providers Identify upsell and expansion opportunities within existing … working within UK Government or Public Sector environments Active SC Clearance (essential) Strong technical knowledge of: Cisco routing, switching, gateways, and network applications TCP / IP, SNMP, NetFlow, VoIP LAN / WAN architectures (MPLS, Frame Relay, ATM) Network security principles and infrastructure ...

Network Engineer (Fortinet) - London - Hybrid - £55,000 plus bonus

Hiring Organisation
Ashdown Group
Location
South East London, London, United Kingdom
Employment Type
Permanent
Salary
£55,000
Network Engineer (Fortinet) 80% Project / 20% Service Desk Escalation Location: London Type: Permanent Salary: £55k plus bonus and benefits Were hiring a hands - on Network Engineer to lead and deliver network security projects (approx. 80% of the role) and act as the technical escalation point … FortiGate firewall and Fortinet platform deployments. Configure and manage FortiGate (physical & virtual) firewall policies, high availability, routing and VPNs. Deploy and maintain FortiEMS / FortiClient endpoint security and integrate endpoint telemetry into security operations. Integrate and operate Fortinet Security Fabric components for centralized visibility and automated response. Provide ...

2nd Line IT Support Engineer

Hiring Organisation
SER Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
£34000 - £38000/annum Hybrid Working
Policy, Office 365 & SharePoint Microsoft Exchange Virtualisation (Hyper-V, VMware, WVD) Backup & Disaster Recovery solutions Cyber Security (MFA, EDR, AV, Incident Response) Networking (TCP / IP, DNS, DHCP, LAN / WAN) Windows & macOS environments Experience supporting mobile devices Strong troubleshooting and problem ...

2nd Line IT Support Engineer

Hiring Organisation
SER (Staffing) Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£34,000 - £38,000 per annum
Active Directory, Group Policy, Office 365 & SharePointMicrosoft ExchangeVirtualisation (Hyper-V, VMware, WVD)Backup & Disaster Recovery solutionsCyber Security (MFA, EDR, AV, Incident Response)Networking (TCP / IP, DNS, DHCP, LAN / WAN)Windows & macOS environmentsExperience supporting mobile devicesStrong troubleshooting and problem-solving abilityPassion ...

Security Operations Engineer

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£75,000
threat intelligence sources to identify emerging risks relevant to the organisation. Required Skills: * Strong understanding of network protocols and system behaviour including TCP / IP, DNS and HTTP / S. System internals (Windows, Linux), and cloud environments (Azure and AWS). * Experience ...

Network Security Engineer

Hiring Organisation
Infoplus Technologies UK Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £300 to £350 per day
Juniper, Cisco Project experience preferably in migration Network infrastructure and application flow through firewalled environment Demonstrate an expert understanding of networking protocols including TCP / IP and Ethernet protocols Expert design knowledge of IP based networking architecture Understanding of IGP & BGP IP … language Python Proven experience in working on large scale project Planning, coordination and execution of assigned network delivery project Perform coordination with internal / external vendor, internal bank personnel and other stakeholder for matter relating to network delivery Ensure compliance on work carried out against the bank standard ...