Network Engineer

N Consulting Limited; Greater London; On-site; GBP 45,000 - 65,000; Full time

Job summary

N Consulting Limited is seeking a Network Engineer to design, implement, and troubleshoot complex LAN/WAN environments for diverse clients. You will configure routers, switches, firewalls, and monitoring tools to ensure secure, reliable connectivity.

Ideal candidates combine hands-on networking experience with problem-solving and communication skills, plus a Bachelor’s degree and relevant certifications such as CCNA or CompTIA Network+.

Qualifications

• Bachelor’s degree in Computer Science, IT, or related field.
• CCNA or CompTIA Network+ certification preferred.
• Hands-on experience with routers, switches, and firewalls.
• Strong problem-solving and communication skills.

Responsibilities

• Maintain, configure, and troubleshoot LAN/WAN, firewalls, routers, and switches.
• Monitor network performance and proactively propose improvements.
• Design and deploy network solutions aligned with client requirements.
• Support high-availability and disaster recovery strategies.
• Update ITSM tickets and network diagrams.

Skills

Network Admin

Network Engineering

Security best practices

Troubleshooting

Communication

Education

Bachelor’s degree in Computer Science/IT or related field

CCNA/CompTIA Network+ certification

Tools

Cisco IOS

Firewall configurations

LAN/WAN hardware

Job description

# Network Engineer at N Consulting Ltd**Company Description**N Consulting is a global professional services company with leading expertise in data analytics, digital, cloud, and cyber-security. We deliver Consulting, IT Services, Technology, and Operations solutions to clients across America, Europe, and Asia. Our team of skilled professionals partners with organizations to provide timely, scalable, and innovative solutions that drive business growth while fostering sustainable and resilient communities.We embrace the power of change to unlock innovation, improve efficiency, and enable digital transformation. To learn more, visit www.n-cons.co.uk.**Role Description**• We are seeking a Network Engineer to join our growing team. This role will be responsible for designing, maintaining, and troubleshooting complex network environments, ensuring secure and seamless connectivity across client infrastructures.• The ideal candidate will bring strong technical expertise, excellent problem-solving abilities, and a collaborative mindset to work alongside IT teams in delivering robust, scalable, and secure networking solutions.**Key Responsibilities****Network Administration & Support**• Maintain, configure, and troubleshoot LAN/WAN, firewalls, routers, and switches. • Monitor network performance and proactively recommend improvements. • Ensure network security through firewall configurations, VLANs, and access controls.**Network Design & Implementation**• Design and deploy network solutions aligned with client requirements. • Implement network upgrades, expansions, and hardware replacements. • Support high-availability and disaster recovery strategies.**On-Site Troubleshooting & Resolution**• Conduct physical inspections: verify device power, cabling, airflow, and rack stability. • Perform connectivity testing: Ethernet/fiber validation, SFP reseating, switch port analysis. • Execute hardware replacements: swap failed devices, document asset changes. • Collaborate with remote support teams via secure sessions and live troubleshooting. • Conduct post-resolution validation: ping tests, trace routes, throughput checks, firewall/VLAN verification.**Documentation & Reporting**• Update ITSM tickets with actions taken, replaced components, and client sign-off. • Record spare parts usage in ITSM asset inventory. • Update network diagrams and CMDB after changes. • Escalate unresolved issues with clear diagnostics and temporary workarounds.**Qualifications & Skills**• Proven experience in Network Administration and Network Engineering. • Strong knowledge of network design, implementation, and security best practices. • Hands-on expertise in configuring and operating routers, switches, and firewalls. • Proficiency in troubleshooting complex network issues under pressure. • Excellent problem-solving and analytical thinking skills. • Strong communication, teamwork, and client-facing abilities. • Bachelor’s degree in Computer Science, Information Technology, or a related field. • Certifications such as Cisco Certified Network Associate (CCNA), CompTIA Network+, or higher-level Cisco certifications are a plus.**Why Join Us?**• Opportunity to work on global projects across diverse industries. • Exposure to the latest networking technologies, cloud platforms, and security practices. • Collaborative work culture that values innovation, learning, and career growth. • Be part of a team driving digital transformation and sustainable IT solutions.