1 to 25 of 120 TCP/IP Jobs in London

System Development Engineer, AWS Networking

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
will need to be a UK national and able to obtain and maintain a UK Government Security Clearance. Further details found here: https: / / www.gov.uk / government / publications / united-kingdom-security-vetting-clearance-levels About the team … life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations. Practical understanding of network fundamentals (DNS, DHCP, TCP / IP, routing, switching, HTTP) Knowledge of systems engineering fundamentals (host networking, storage, linux operating systems) Preferred Qualifications Experience ...

Security Engineer, SDO AppSec EMEA

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
find endless knowledge-sharing, training, and other career-advancing resources here to help you develop into a better-rounded professional. Work / Life Balance We value work-life harmony. Achieving success at work should never come at the expense of sacrifices at home, which is why we strive … Python, Java, or C++ Bachelor's degree in computer science or equivalent Knowledge of networking protocols such as HTTP(S), DNS, and TCP / IP Experience in application security architecture, security code reviews, security testing, incident response, or security infrastructure Experience with AI / ...

Content Security Engineer, GME Security

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
team requests and end-to-end vendor security coordination Research, evaluate, and pilot next-generation content security measures such as forensic watermarking, audio / video fingerprinting, and content tracking technologies Contribute to the team's strategy for securing pre-release content against generative AI threats, including AI-driven … build internal security tooling to automate workflows such as access governance, audit reporting, and compliance monitoring Write and maintain lightweight automation (Python / scripting) to support security tooling, audit workflows, and operational reporting Develop and iterate security standard operating procedures tailored to each studio and production team Provide ...

Infrastructure Engineer (Network)

Hiring Organisation
Croydon Health Services NHS Trust
Location
Thornton Heath, CR7 7YE, United Kingdom
Salary
£45953.00 to £54254.00
services in line with SLAs, resolving incidents and requests promptly. System Management: Deploy, maintain, monitor, and troubleshoot servers, networks, telephony, and related hardware / software. Compliance & Security: Ensure infrastructure meets NHS security standards, DSPT Toolkit requirements, and Cyber Security guidelines. Project Support: Contribute to technical projects and assist … improvements. Monitoring & Risk Reduction: Use proactive alerting tools to minimize downtime and maintain performance standards. Technical Expertise: Possess specialist knowledge in Server / Storage and generalist knowledge across other infrastructure domains (Telecoms, Networking, or Architecture) Additional Duties Flexible working hours (8 am-6 pm coverage) and participation ...

Operations Support Manager - Banking / Financial

Hiring Organisation
N P Associates
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £95,000 per annum
Operations Support Manager - Banking / Financial Whilst the emphasis is on Team Lead / Managers role, ideal candidates will come from a Technical background in a Banking / Financial environment with experience of E-Trading Applications in a Linux environment with an understanding … Databases (SQL Server, Oracle) and Scripting - Python / Bash / Shell. About The Role : Managing a highly technical Support Team, looking after a Trading / Settlement Systems in a fast paced and pressurised environment. You’ll be the bridge between the business and technology ...

Production Services Specialist I

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to €90 per hour
Production Services Specialist II | Remote | Inside IR35 | $90 p / h | 4-Day Week (up to 40 hrs, Rota-Based) | IP Services / Load Balancing & DDI We're looking for an experienced Production Services Specialist II (contract) to support a large-scale IP … BlueCat (on-prem and Cloud Resolver) infrastructure. Support incident triage, proactive reviews and disaster recovery testing. Maintain documentation, runbooks and adherence to design / governance standards. Coordinate with senior engineers, architecture and business stakeholders. Contribute to Operations projects and infrastructure improvement initiatives. Key skills: 7+ years' experience ...

Lead Software Engineering - C++

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
solutions across design, development, and troubleshooting. Design, develop, and test reliable, high-quality C++ code for trading connectivity and risk controls on Unix / Linux platforms. Implement end-to-end low latency client setups, including production rollout and post-release validation. Automate remediation for recurring issues to improve … authorized AI-assisted engineering practices within the work environment to improve code quality, delivery speed, and operational outcomes (e.g., AI-assisted code review / refactoring, test strategy acceleration, incident / root-cause analysis support), while establishing consistent validation standards (secure coding, peer review, automated testing ...

Lead Software Engineering - C++

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
solutions across design, development, and troubleshooting. Design, develop, and test reliable, high-quality C++ code for trading connectivity and risk controls on Unix / Linux platforms. Implement end-to-end low latency client setups, including production rollout and post-release validation. Automate remediation for recurring issues to improve … authorized AI-assisted engineering practices within the work environment to improve code quality, delivery speed, and operational outcomes (e.g., AI-assisted code review / refactoring, test strategy acceleration, incident / root-cause analysis support), while establishing consistent validation standards (secure coding, peer review, automated testing ...

PPM Engineer - Reading and London

Hiring Organisation
Reliance High Tech
Location
London, United Kingdom
Employment Type
Permanent
Salary
£35000 - £40000/annum Health Care, Pension, UPsell Scheme
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 … industry, Reliance High-Tech / Reliance Protect combines the capability and footprint of a large organisation, with the agility and customer focus of an independent business. We operate at the top end, for the most discerning clients, in the most demanding and complex environments with the highest stakes ...

Go Software Developer - HFT in London - Quant Capital

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Developer - HFT London, United Kingdom Posted about 1 year ago This is a job posted by our partner Jooble. Tech stack Linux C TCP / IP Go Python Debian Essential Attributes Proficiency in programming languages particularly Go but also Python or C. Demonstrable experience … passion for automation. Strong experience using Linux (RedHat / Debian), TCP / IP networking, and systems from a commercial perspective. Compensation £150K - 200K Role type Full time Visa sponsorship Not provided Benefits & perks No additional benefits listed. #J-18808-Ljbffr ...

Security Presales Systems Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
cycle.* Engage with CISOs, security architects, and IT leaders to discuss cybersecurity strategy, industry trends and modern security architectures.* Produce high-quality RFP / RFI responses, security questionnaires and technical documentation.* Collaborate with Product Management and Engineering to ensure successful solution design, implementation and customer success.* Build trusted … evenings or weekends when required.**Required Qualifications*** 5+ years' experience in technical pre-sales or solution engineering across cybersecurity, networking, Cloud or SASE / SSE.* Strong knowledge of SASE, SSE, Zero Trust, SD-WAN, NGFW, NAC, ZTNA, CASB, SWG, DLP and cloud security.* Solid understanding of networking technologies ...

Field Service Engineer

Hiring Organisation
Sento Talent
Location
Central London, London, United Kingdom
Employment Type
Permanent
Salary
£35,000
photocopiers, scanners, and office equipment. Complete preventative maintenance visits. Provide technical advice and user guidance to customers. Configure devices for network environments including TCP / IP, print drivers, scan-to-email, cloud services, and document management solutions. Skills & Experience Previous experience as a photocopier … printer, or field service engineer. Good understanding of networking, including TCP / IP, DNS, DHCP, and Wi-Fi networking. Experience configuring multifunctional devices in networked environments. Strong fault-finding and diagnostic skills. Customer-focused and adaptable team player. The successful candidate can expect ...

Network and Voice Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
enterprise networks and unified communications within a regulated financial services environment. You will ensure high availability, performance, security and service quality across LAN / WAN, data centre connectivity, cloud networking and voice platforms, working closely with infrastructure, security and service management teams. Key responsibilities Design, implement and maintain … routing and switching, including VLANs, STP, QoS, OSPF / BGP and high-availability patterns. Support WAN and remote connectivity (MPLS / SD-WAN, VPN, IPSec / SSL), optimising performance and resilience. Administer network security controls such as firewalls, NAC (e.g., 802.1X), segmentation and secure ...

Mainframe Network Engineer

Hiring Organisation
Ixceed Solutions Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £350 per day
Role: Mainframe Network Engineer Location: London, UK (Hybrid) Duration: 6+ Months with possible extension. Responsibilities: Configuration and administration of IBM z / OS mainframe network software. Configuration and administration of network related 3rd party system software. Provision of technical support for Mainframe Networking issues during the normal working … other file transfer products Session Management products eg. TPX, Teleview, CL / Supersession Network Management products eg. NETVIEW, Netmaster / TCPIP Print server products eg. VPS Must be a self-starter, but also a completer / finisher who ensures that tasks / ...

Junior Software Engineer

Hiring Organisation
INTEC SELECT LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £70,000 per annum
Junior Full Stack Developer (Next.js / React / Go / C#) - up to £70k, London The Overview Our client is a leading IT organisation, recognised for its innovative approach and strong reputation in the industry. They're mid-way through a major digital transformation … focus on backend logic and APIs Working closely with senior engineers to turn requirements into shipped features Building and maintaining RESTful and / or GraphQL APIs and backend services Helping keep applications performant, secure, and accessible Getting stuck into code reviews as part of a collaborative team What ...

Cluster Architect

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
communication with internal and external stakeholders. About the Infrastructure Team The Infrastructure Engineering team spearheads the strategy, roadmap, and delivery of critical HPC / AI infrastructure to the broader Technology and Customer organizations. Its mission is to deploy scalable, secure, and efficient infrastructure solutions tailored to the organization … part of Radiant’s portfolio of offerings. They provide technical support throughout the procurement process with vendors to ensure the suitability of RFI / RFP responses. They work in tandem with OEMs and infrastructure providers during the infrastructure rollout, and providing technical inputs to DC providers and OEMs ...

Principal Control Systems Engineer

Hiring Organisation
Matchtech
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£40.00 - £65.00 per hour
Narratives, Control Philosophy documents, and Functional Logic Specifications for energy-sector automation systems. Design robust control system network architectures, including Ethernet / IP, Profinet, Modbus, and redundant industrial networks. Lead or support system configuration, testing, FAT / SAT, commissioning, and operational optimisation … Effect diagrams, and Control Strategies used in energy and industrial facilities. Hands-on knowledge of industrial communication protocols such as Profinet, Modbus TCP / IP, and Ethernet / IP. Experience with OPC UA for data exchange and system integration. Familiarity with ...

Application Support Engineer (Cash Equities)

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
frequency trading systems, global markets, and cutting-edge real-time technologies in a fast-paced environment. Key Responsibilities Provide hands-on Level 1 / 2 / 3 support for the Cash Equities Execution platform Sit directly with High Touch and Low Touch trading desks , supporting real … part of a global support model Required Skills & Experience Strong experience supporting trading systems or low-latency platforms Solid expertise in Unix / Linux environments and system-level troubleshooting Proficient in at least one scripting / programming language (e.g. Python, Bash, Go ) Experience with monitoring & observability ...

Senior Network Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
issues. Troubleshoot complex network and cross‐domain infrastructure issues spanning network, compute, and cloud layers. Develop and maintain accurate documentation including network diagrams, IP address management (IPAM), standards, and runbooks. Partner with security teams on vulnerability remediation, incident response, and compliance requirements. Coordinate with vendors, ISPs, and internal … need Strong, demonstrable hands‐on experience designing, implementing, and supporting enterprise network environments. Strong expertise in network security, including firewalls, segmentation, encryption (IPsec / TLS), secure remote access, and intrusion detection / prevention systems. Deep knowledge of routing and switching technologies (e.g., Cisco, Aruba, Juniper, Meraki ...

IT 2nd/3rd Line Support Engineer

Hiring Organisation
Euro Car Parks
Location
Central London, London, United Kingdom
Employment Type
Permanent
Salary
£50,000
/ 3 rd Line Support Engineer, central London An exciting IT 2 nd / 3 rd Line Support Engineer role with a salary of £35,000 to £50,000 dependent on experience, plus bonus and career progression opportunities for a permanent role based in our Marylebone … London office. We are offering a fantastic opportunity for an experienced IT 2 nd / 3 rd Line Support Engineer with an immediate start at a market leading, dynamic and renowned property, technology and innovative, technology-based car parking company. Euro Car Parks is a market leading, renowned ...

Software Engineer - Rust

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Computer Science, Engineering, Maths, Physics). Coding Aptitude :3+ years ofprogramming experiencein Rust orC++ and the willingness to learn new languages quickly.Withtheexpectation tocontributeacrossRust / Java / C++ / Pythoncodebases asrequired. Experience with Linux development : Experience with using Linux and developing software running on Linux. … experience with Docker. Preferred Qualifications: Any of the following skills would be particularlyadvantageous, but we welcome applications without these: Experience with data science / AI Familiarity withNATS.io Knowledge of networks and networking protocols (such as TCP / IP and HTTP) Exposure ...

Software Engineer - Rust

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
years of programming experience in Rust or C++ and the willingness to learn new languages quickly. With the expectation to contribute across Rust / Java / C++ / Python codebases as required. Experience with Linux development: Experience with using Linux and developing software running … with Docker. Preferred Qualifications: Any of the following skills would be particularly advantageous, but we welcome applications without these: Experience with data science / AI Familiarity with NATS.io Knowledge of networks and networking protocols (such as TCP / IP and HTTP) Exposure ...

Senior Network Automation Engineer - Python - Global Tech

Hiring Organisation
Principle
Location
London, England, United Kingdom
Senior Network Automation Engineer - Python £102,000 | 12-month contract | Central London - Hybrid | PAYE / Inside IR35 Strong Network Engineer who can genuinely code in Python? We're hiring a Senior Network Automation Engineer to join the infrastructure engineering team of a leading global technology company, working … automation and AI-assisted engineering What we're looking for 7+ years' relevant engineering experience Strong hands-on Python programming Excellent networking fundamentals - TCP / IP, BGP, MPLS, IPv4 / IPv6 Experience building network automation for provisioning, deployment or operations Strong Linux ...

Penetration Tester

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
London, United Kingdom | Posted on 05 / 11 / 2025 Salary £70,000 – £95,000 / year (Depending on Experience) City London Province City of London Country United Kingdom Postal Code EC3M Job Description Job Description We are looking for a certified Penetration Tester … Metasploit, Nmap, Wireshark) Experiencewith OWASP Top 10 , vulnerability scanning, and exploit development Familiaritywith MITRE ATT&CK framework and red team methodology Solidknowledge of TCP / IP, firewalls, DNS, HTTP / HTTPS, and encryptionprotocols Strongreporting and communication skills Atleast one industry certification (OSCP ...

Data Centre Engineer

Hiring Organisation
Oscar Associates (UK) Limited
Location
Orpington, London, United Kingdom
Employment Type
Permanent
Salary
£45,000
working alongside project teams and clients to deliver successful installations Technologies you'll be working with: Windows Server & Active Directory Microsoft Azure VMware / Hyper-V Cisco, HPE, Aruba & Dell hardware Firewalls, wireless infrastructure & networking TCP / IP, DNS, DHCP & VLANs Structured … cabling (Cat5e / Cat6 / Fibre) Server racks, patch panels & cable management Backup technologies & ConnectWise (or similar) What's on offer: Salary up to £45,000 Company van & fuel card Exposure to a variety of infrastructure and data centre projects Ongoing training and career development Opportunity ...