and events, proactively responding to issues to maintain service continuity. Ensure high standards of customer communication and technical documentation. Contribute to internal knowledge sharing and process improvement. Skills / Must Have: Strong understanding of TCP/IP networking fundamentals. Experience working in a helpdesk, NOC, or customer support environment. Cisco CCNA qualification … or equivalent knowledge); working toward certification is acceptable. Good working knowledge of Unix / Linux and / or Windows client / server systems. Clear and professional communication skills with a customer-first mindset. Ability to follow support procedures, manage time effectively, and work within SLAs. Strong problem-solving mindset and willingness to learn. Benefits More ❯
Linux Systems Administrator - Hybrid working (2 days in office / 3 days from home) Paying an attractive salary + fantastic benefits including bonus (averagely 20%), BUPA health insurance, 4 x salary life assurance, season ticket loan, excellent pension scheme, sponsorship for relevant qualifications, 25 days holiday plus ability to buy & sell, plus more This is an opportunity to … and responsibility for company data ensuring that all backup and restore procedures are adhered to and effective. Providing training, coaching and mentoring to other administrators and 1 st / 2 nd line support staff. Building and maintaining relationships with External and Internal contacts. The management of projects to implement business systems solutions and or processes for information management. … out of hours support of the IT systems. Assisting in the planning, development, documentation and testing of Disaster Recovery and Business Continuity plan, processes and procedures. Key Skills / Requirements: Hands on experience with emails systems (Dovecot, Postfix) Detailed working knowledge of server builds configuration and remote management Proficient in monitoring and logging technologies such as Zabbix and More ❯
NETWORK ARCHITECT - SME HERNDON Position requires ACTIVE TS / SCI clearance with Polygraph Mandatory Skills: 1. Required Skills 2. Design and optimize network topologies and site configurations. Plan installations, transitions, and cutovers of network components and capabilities. 3. Organize and direct network installations or site surveys. 4. Assess and document current site network configuration and user requirements. 5. … planning. 8. Must have knowledge of remote administration and secure Virtual Private Networking, to include IPSEC and SSL. 9. Must understand commercial encryption standards and their application in IP networking. 10. An understanding of Private Branch Exchange telephony, to include Avaya / Nortel telephone switch interfaces 11. An understanding of RF transport mediums to include cellular … microwave, and satellite communications. 12. An understanding of wired data transport mediums to include Category 5e / 6 and fiber optics. 13. Ability to design small to medium scale voice, video, and data networks. Familiarity and experience with various encryption devices and industry standard commercial encryption methods. 14. Knowledge of WAN technologies to include ISDN, POTS, and Satellite More ❯
Sheffield, South Yorkshire, Yorkshire, United Kingdom
Transaction Network Services
deliver our collective goals and lead a global mentality Accountable for Technical design, implementation, testing, coordination, and transition into operational status Analyse solution design packages from Sales Engineering / Network Architecture and provide a work break down and effort estimate to deliver a customer solution Implement technical solutions globally adhering to TNS's Global Change management policy Be … we deliver our services About you: Qualifications: Engage directly with all stakeholders including customer and vendors in the delivery of our solutions Strong knowledge of data communications including TCP/IP, IPsec, xDSL protocols Excellent working knowledge and experience of networking protocols such as L3VPNs, HSRP, NAT, EIGRP, BGP, IS-IS and OSPF (minimum … years experience) Familiar with other communications protocols, specifically TPAD APACS, ISO8583, SSL, and SDLC / HDLC Solid understanding of, and working experience with Linux Solid understanding of, and working experience with, network / application level packet capture and trace analysis to solve problems Works under minimal supervision and effectively demonstrates the ability to use independent judgment More ❯
Contribute to the technical direction on all areas of PKI architecture, strategies and automation and enforce governance and standards REQUIREMENTS 6 years of experience in an enterprise LAN / MAN / WAN environment 4 years of experience in identity and credential management Demonstrated confidence and experience with ICAM skills Demonstrated experience and confidence with Azure Active … related. (Azure, AWS, etc.) Experience with Enterprise Systems Architecture, engineering, and deployment Working knowledge of Zero Trust Architecture and modern credential management and authentication PowerShell scripting experience and / or other scripting expertise Perform system-level design and configuration of products including determination of hardware, OS, and other platform specifications. Monitor and respond to complex technical control facility hardware, software, and network problems. Experience in network infrastructure diagnostics (TCP/IP general networking knowledge, network monitoring tools) Utilize software and hardware tools and identifies and diagnoses complex problems and factors affecting network performance Troubleshoot network systems and performance issues when necessary and make improvements to the network Interface with vendor More ❯
network security architecture, including essential network security patching and upgrades, establishing security baselines, ensuring compliance, and overseeing hardware and software maintenance. You will also provide crucial Level 2 / 3 escalation support and troubleshooting to resolve incidents and tasks efficiently. Qualifications Skills Required: Education & Experience: Bachelor's degree in computer science, networking administration, information technology, or a similar … 7+ years; or Associate's degree with 12+ years. Enterprise Networking: 5+ years of experience in enterprise networking. Cloud Networking: 2+ years of experience with Cloud PaaS and / or IaaS (Azure). Cisco ISE: Strong understanding of Cisco Identity Services Engine (ISE) administration. Networking Protocols: Strong understanding of networking protocols such as TCP/IP, BGP, OSPF, MPLS, VPN. Certifications: CCNA / CCNP / CCIE certification preferred. Routing Platforms: Experience with Cisco ISR, ASR, CSR. Switching Platforms: Experience with Cisco Catalyst & Nexus. Network Security: In-depth knowledge of Network Security, VPN, ACL, DMVPN, IPSEC, NAC, MAB, DOT1X, and Encryption Standards. Security Platforms: Experience with Cisco Firepower More ❯
Basic Qualifications: • Bachelor's degree with 2 years' experience or High School Diploma / Equivalent with 2 years' experience may be considered in lieu of degree. • Navy Submarine experience in any of the following: Sonar Technician (ST), Information Systems Technical Electronic Warfare (ITS-EW), Information Technology (IT), Fire Control Technician (FT), or other similar experience • Linux operating … systems, preferably Red Hat Enterprise Linux RHEL. BASH and / or Python Scripting Experience Required Experience with TestRail-Preferred Experience with DOORS or ELM Preferred •Ability to Assist identifying operating system issues and produce patches to fix issues as required. • Computer System / Networking troubleshooting skills • Secret Clearance Preferred Qualifications: • Active Secret Clearance • Experience with Submarine … Tactical and Electronic Warfare Systems, including AN / BYG-1 and AN / BLQ-10, at the operation level and / or build / deployment level • Experience with debugging issues with the Linux kernel • Experience with System Build Automation Tools (Linux kickstart, Ansible, Puppet) • Networking knowledge (OSI Network Layers, TCPMore ❯
Network Engineer Advance National Security in Paradise Join a Mission-Driven Tech Leader in Pearl Harbor Salary: $48 / hr DOE Industry: Dept. of Defense Employment Type: 5-month contract-to-perm Clearance: Secret clearance required Location: Pearl Harbor, Hawaii Overview: Step into a role where your work directly contributes to secure, resilient networks supporting U.S. defense operations. … solutions and cost estimates for SIPRNet projects, VoSIP network expansions (Call Manager upgrades), and secure room installations for classified network equipment. Deliver As-Built network documentation using AutoCAD / MS Visio for submission to the government project manager and SCX plans and programs office. Maintain and troubleshoot SIPRNet systems and VoSIP infrastructure (fiber and copper-based). Analyze … on training to military personnel on network and configuration management to ensure continuity during emergencies, contractor absences, or lockout scenarios. Maintain an accurate inventory of VoSIP end devices (IP phones, switches, servers). Manage Backup and Restore Services (BARS) on Call Manager Publishers, ensuring regular automated backups to designated network storage or removable media. Perform adds /More ❯
Job Level: Junior, Mid, or Senior We are seeking a highly motivated and skilled CNO Developer / Computer Scientist / Reverse Engineer to join our team. This role involves designing, developing, and maintaining complex software systems that support Computer Network Operations (CNO). As a member of our team, you will work on mission-critical projects … providing innovative solutions to emerging cybersecurity challenges. Responsibilities: o Software Development: • Design, develop, test, and maintain low-level software in a CNO environment. • Work with assembly, C / C++, Python, or other relevant programming languages to create robust, high-performance software. • Develop custom tools and scripts to automate tasks, analyze data, and improve system performance. • Write clean, efficient … including user guides, system design documents, and vulnerability assessments. • Ensure all documentation is clear, concise, and accessible to team members and stakeholders. Required Qualifications: o Clearance: Active TS / SCI with Full Scope Polygraph is mandatory. o Education: Bachelor degree in Computer Science, Computer Engineering, Electrical Engineering, or a related technical field. Relevant experience may substitute for education. More ❯
judgments and gets work done with quality under moderate supervision. Has limited discretion to vary from established procedures. Scope Define, architect, design, develop, document and test embedded and / or application software as part of a software engineering team of 5-20 engineers, within the Cyber UK Business Unit, delivering multiple concurrent research, development and production programmes ranging … from tens of £k to several £m. Responsible for / Key responsibilities Architect, specify requirements, design, implement and test embedded and application software in accordance with the project software development process to ensure high quality and timely software deliverables. Apply object-oriented design techniques to enable code re-use and integration with testing frameworks Review and understand system … and EA, ensuring model can be used for accurate code generation as required. Develop and maintain knowledge of best practice development processes, language standards and tools, e.g. TDD / BDD, Continuous Integration, DevSecOps, static and run-time analysis tools, C / C++ standards and secure software development. Estimate time and effort required for software activities and More ❯
operators and analysts to develop, conclude, document, and analyze requirements • Build prototypes to demonstrate results of analysis • Advance and improve existing toolsets and products Required: • Active DoD TS / SCI with Lifestyle Poly • Junior level reverse engineer's must have two years of experience • Mid-level engineers should have 5+ years experience • Senior level engineers should have a … of 8 years' experience • Reverse engineering and debugging experience using tools such as IDA, Ghidra, OllyDbg • Experience with vulnerability research and exploit development. • Experience with assembly language x86 / 64, ARM, MIPS • Development experience in C / C++ and Python • Familiarity with Git and Subversion • Experience with developing CNO specific software in Linux / Windows / Embedded applications • Experience with automating reverse engineering tasks • B.S. in a technical discipline or 4 additional years of experience in place of B.S. Desired, not required: • Understanding of network protocols such as TCP/IP • Experience with any of the following: Java, JavaScript, Bash, PowerShell, Perl, C#, Rust More ❯
post: The Cybersecurity Department with our client provide support for all electronic communications systems at the site, as well as taking a leading role in delivering technology change / improvement projects and managing external support agreements. The Cyber Security Analyst is required to focus on the detection, investigation and response to cyber security events and incidents. Other tasks … and handling as part of the Computer Security Incident Response (CSIRT) team. * Monitor and administer Security Information and Event Management (SIEM). * Malware analysis and forensics research. * Understanding / differentiation of intrusion attempts and false positives. * Investigation tracking and threat resolution. * Vulnerability identification & mitigation / remediation. * Compose security alert notifications. * Advise incident responders & other teams on … threat. * Triage security events and incidents apply containment and mitigation / remediation strategies. * Generate reports and document security incidents / events. * Proactively monitoring the performance of systems, and make regular routine inspections of installed equipment and take corrective avoidance actions to prevent wider problems. * Act as the point of escalation for the Service desk for security More ❯
as a subject matter expert on our core security technologies, providing guidance and mentorship to other team members. Security Operations (50%) Incident Response: Serve as a Tier 2 / Tier 3 escalation point for complex security incidents, conducting in-depth investigations, and providing clear, actionable remediation guidance. Threat Hunting: Proactively hunt for threats and vulnerabilities across our clients … a Security Operations role (SOC Analyst, Incident Responder, or similar). Hands-on experience with SIEM platforms, with a strong preference for Microsoft Sentinel. Demonstrable expertise with EDR / XDR technologies such as MDE, Acronis, CrowdStrike and others. Familiarity with DNS / proxy security tools like Cisco Umbrella. A solid understanding of the broader Microsoft Security … stack, including Defender suite, Conditional Access, and Azure AD. Experience with incident response methodologies and digital forensics. A good understanding of networking fundamentals (TCP/IP, DNS, DHCP, etc.). Desirable Experience: Previous experience working for a Managed Service Provider (MSP) or in a consulting capacity is highly advantageous. Experience with scripting and automation More ❯
Car A leading UK organisation is seeking an experienced Network Analyst to join its internal IT infrastructure team. You'll be responsible for supporting and enhancing enterprise LAN / WAN / WLAN networks, managing Cisco Meraki and Fortinet environments, and providing 3rd line support. Key Skills & Experience: Strong hands-on experience with LAN / WAN, Meraki SD-WAN, Fortinet Firewalls Knowledge of TCP/IP, DNS, DHCP, MPLS, and network monitoring (SolarWinds, Nagios) High-level troubleshooting and network design skills Proactive mindset, strong documentation and communication skills ITIL knowledge and understanding of security / compliance best practices This is a high-impact role within More ❯
Car A leading UK organisation is seeking an experienced Network Analyst to join its internal IT infrastructure team. You'll be responsible for supporting and enhancing enterprise LAN / WAN / WLAN networks, managing Cisco Meraki and Fortinet environments, and providing 3rd line support. Key Skills & Experience: Strong hands-on experience with LAN / WAN, Meraki SD-WAN, Fortinet Firewalls Knowledge of TCP/IP, DNS, DHCP, MPLS, and network monitoring (SolarWinds, Nagios) High-level troubleshooting and network design skills Proactive mindset, strong documentation and communication skills ITIL knowledge and understanding of security / compliance best practices This is a high-impact role within More ❯
have this Prior exploitation analyst experience Knowledge of computer security principles, vulnerability analysis, and exploitation methods Deep knowledge of the concepts, principles, and methods for network connectivity (e.g., TCP/IP, DNS, TLS, etc.) An active TS / SCI with polygraph You could also have this: Open-source research background Experience using … our competitive benefits package. These benefits include health insurance, life insurance, disability, company holiday and paid time off, parental leave, 401(k) company match and contributions, professional development / training reimbursements, and other work / life programs. About BlueHalo, an AV Company, Intelligence Systems BlueHalo, an AV Company, Intel division provides specialized operational support, services and … to plan, design, develop and execute critical missions in the national security community. BlueHalo, an AV Company, generates actionable insights from analytics through a suite of operationalized AI / ML tools for data collection / ingestion and subsequent text, geospatial, time series and image / video analytics to support open-source intelligence. BlueHalo, an More ❯
Salary type: Salary type: Annual Salary from: Salary to: Location: Location: London, UK Job published: Job published: 31 / 05 / 2025 Job ID: Job ID: 43469 Job Description We have an exciting opportunity for an experienced Head of Technical Operations (TOC)to drive innovation, operational excellence, and continuous improvement in the delivery of premium live … TOC, you will: Lead, mentor, and develop a high-performing team of Network Engineers, fostering collaboration, continuous learning, and customer focus. Oversee day-to-day operations, ensuring 24 / 7 monitoring, support, and maintenance of network and video services. Develop staffing models, training programmes, and performance management processes to ensure the team has the necessary skills and resources. … develop monitoring systems (e.g., Zabbix, Grafana, Prometheus) and oversee client reporting systems. Skills and Qualifications 5-7+ years' experience in a technical leadership role within a 24 / 7 broadcast, network operations centre (NOC), or Master Control Room (MCR) environment. Strong understanding of broadcast environments and workflows, including video / audio encoding, transmissionMore ❯
Submarine Cybersecurity Test & Evaluation Specialist Location: Manassas, VA Responsibilities: Requires a Bachelor's or Technology degree in Engineering or a related specialized area / field, or equivalent (4 years job-related experience). Requires an additional 5+ years of job-related experience, or a Master's degree with 3+ years of job-related experience. CLEARANCE REQUIREMENTS: Secret Qualifications … to join our dynamic teams in Manassas, VA. The selected candidate will join a highly talented team responsible for developing the state of the art Information Assurance (IA) / Cybersecurity System for the US Submarine Force. The team is responsible for the test, evaluation, and design verification of the system under development. Additionally, the team ensures functional and … port maps. • Participate in various technical and program meetings on a weekly basis. • Conduct Informal and Formal Tests as required to validate all planned testable requirements. • Communicate project / program issues to management, as necessary. • Install and checkout IA software as well as provide test and troubleshooting support at other testing site locations. • Employing a professional and confident More ❯
of-hours (OOH) rota, if required * Ensure a high standard of client communication and service delivery * Assist account managers with technical input on quotes and client requirements Skills / Must have * 3+ years' experience in an MSP or ISP environment * Strong knowledge of Windows Server, Active Directory, DNS, DHCP, and Group Policies * Familiarity with Microsoft Exchange and Exchange … Online * Understanding of Microsoft 365 and Azure Sync fundamentals * Experience supporting Windows, macOS, RDS environments * Strong grasp of networking protocols (TCP/IP, LAN / WAN, firewall basics) * Confident, clear communicator with strong client-facing presence * Comfortable in fast-paced, multi-client technical support environments * Experience with SME clients and project involvement … Desired (not essential) * Degree or equivalent in a technical or business discipline * Experience using CRM / ERP tools (e.g. Oracle, Salesforce) Please note This role requires on-site presence 2 days per week in Chippenham or South Bristol, and 1 day per week at a client site in Salisbury. A valid driving licence and personal vehicle are required. More ❯
Education, help the Chief of Naval Operations (CNO) define the future Navy, its missions and roles, support combat readiness, and strengthen maritime security cooperation. Title: Systems Security Analyst / Cyber Defense Analyst Location: Newport, RI Full Time (Y / N): Y Status (Exempt / Non-Exempt): Exempt Clearance: Top Secret / SCI … and scanning, McAfee HBSS, Corelight, and Cortex. • IOT discovery, monitoring, SOAR orchestration, and SIEM event correlation and analysis. • Cloud security systems for DLP, and Email and threat prevention / monitoring. • Validate remediation of IT resources managed by departmental branches. • Security incident reporting to Security Operations Center. • Administration of firewalls, Intrusion Detection System, policy server, IAVA management, Defense Information … encryption). • Network protocols TCP/IP, Dynamic Host Configuration, and Domain Name System. • Network traffic flows TransmissionControlProtocol, InternetProtocol, Open System Interconnection Model, and Information Technology Infrastructure Library. • Common attack vectors and classes of attacks (passive, active, insider, close-in, distribution). More ❯
not limited to: • Minimum of 8-12 years' experience, in supporting virtualization technologies preferred • Architect and design server virtualization solutions • Perform systems administration for Windows Server and UNIX / Linux systems such as RHEL and SLES • Develop automation through scripting and APIs (Ansible, Puppet, Chef, PowerShell, Python, Bash, Terraform) • Perform certificate lifecycle management for systems and applications • Evaluate … directly or with the team members • Define, monitor, optimize, and troubleshoot system performance of all server virtualization and other related infrastructure systems • Basic understanding of data center networking (TCP/IP, switching / routing, ports and protocols, firewall concepts, load-balancing) • Strong, demonstrable scripting experience in one or more of the following … networks, wide area networks, messaging, and client-server applications. • Ability to develop and maintain IT documentation. • Independently analyzes and develops innovative resolutions for complex problems involving availability and / or performance at the component level. Works with vendors to resolve problems and, implements solutions independently • Leads project teams within assigned unit. Develops, plans, and manages project tasks. • Provides More ❯
London, United Kingdom Company: Leading International Bank (London Branch) Division: Wholesale Banking - Technology (IT) Job Type: Full-Time | Officer Grade Experience Level: 1-2 Years Industry: Financial Services / Banking Role Overview A London-based international bank is seeking a Tech Support Engineer to ensure the reliability and performance of its IT infrastructure. This role involves hands-on … support across hardware, software, and network systems, with a focus on secure, compliant, and resilient operations in a regulated financial environment. Key Responsibilities Provide 1st / 2nd line technical support for desktops, laptops, printers, phones, and mobile devices Manage laptop imaging and deployment (WIM USB, MDT, SCCM, Intune, AutoPilot) Administer user accounts and permissions (Active Directory, Microsoft … SharePoint, Teams, OneDrive) Support core networking protocols (DNS, DHCP, TCP/IP, LAN / WAN) Monitor system performance and assist with backups and disaster recovery procedures Maintain endpoint security (Bitlocker, SentinelOne, Fortinet, Symantec, MFA) Document IT procedures and respond to service requests with urgency and professionalism Support AV systems, CCTV, card access More ❯
certification as defined and described in DoDD 8570.01, 8570.01-M, and 8140., and as amended. (e.g., CEH, CySA+, GCIA, GCIH). Practical experience with firewalls, network TAPs, IDS / IPS, endpoint protection, and other network defense technologies Adept in evaluating network protocols utilizing network analyzers, such as Wireshark, Tshark, and tcpdump Experienced in analyzing network datasets, including Zeek … Proficient in triaging Suricata alerts, tuning rules, and creating custom detections. In-depth understanding of network vulnerabilities and misconfigurations Strong knowledge of cybersecurity principles, adversary techniques, and detection / response strategies Experience working within the framework of a CONOPS or similar operational document Awareness of DoD cybersecurity frameworks (e.g., RMF, CMMC, NIST 800-53) and their application in … secure system design and monitoring. Knowledge of common enterprise network architectures and defense mechanisms Experienced in analyzing TCP/IP, DNS, HTTP / S, SSL / TLS, SMB, and RDP protocols to identify vulnerabilities, misconfigurations, and indicators of malicious activity. Preferred: Advanced certifications such as CISSP (Certified Information Systems Security More ❯
to create hardened networked computer systems in mission-critical environments. Key Responsibilities Design, develop, document, and test integrated software systems for embedded, high-performance computing platforms Perform hardware / software interface integration for secure small computer networks Administer and configure secure Linux systems (client / server) Develop Bash and shell automation scripts Conduct cybersecurity hardening (DISA … leads in a classified environment Minimum Qualifications U.S. Citizen with active SECRET clearance Bachelor's in Computer Science, Engineering, or related field 5+ years of experience in software / systems engineering Strong Linux system administration and scripting experience (BASH or equivalent) Experience applying STIGs or similar security hardening practices Understanding of high-speed secure networks (TCP/IP, fiber / copper media) Preferred Experience DoD or Aerospace / Defense program experience Experience with automation, logging, monitoring, or compliance tools in secure environments Familiarity with small form-factor hardware or mission processors Why You Should Apply This role is designed for engineers who thrive in structured, technical More ❯
amended (such as Sec+ or equivalent) required. CSSP Auditor certification is required. Must have experience supporting DoD or Intelligence Community networks Practical experience with firewalls, network TAPs, IDS / IPS, endpoint protection, and other network defense technologies Adept in evaluating network protocols utilizing network analyzers, such as Wireshark, Tshark, and tcpdump Experienced in analyzing network datasets, including Zeek … frameworks (e.g., RMF, CMMC, NIST 800-53) and their application in secure system design and monitoring. Knowledge of common enterprise network architectures and defense mechanisms Experienced in analyzing TCP/IP, DNS, HTTP / S, SSL / TLS, SMB, and RDP protocols to identify vulnerabilities, misconfigurations, and indicators of malicious … PTO: 15 vacation, 5 sick, 2 personal days Grow Without Limits: Access to exclusive training platforms, certification reimbursements, and a generous development budget to elevate your career EOE / ADA IND123 SRG Government Services is a leading provider of information technology, training, engineering, accounting and intelligence analytical services for agencies in the intelligence, defense, homeland security, cyber security More ❯
