Network and Cybersecurity Engineer (m/f/d) in London
Network and Cybersecurity Engineer (m/f/d)

Network and Cybersecurity Engineer (m/f/d) in London

London Full-Time 36000 - 60000 £ / year (est.) No home office possible
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Cognizant Technology Solutions

At a Glance

  • Tasks: Design and deploy secure network infrastructure for cutting-edge SCADA systems.
  • Company: Join a leading firm in the water utility sector focused on innovation.
  • Benefits: Competitive salary, flexible working options, and opportunities for professional growth.
  • Other info: Dynamic work environment with a focus on cybersecurity and compliance.
  • Why this job: Make a real difference in critical infrastructure while working with advanced technologies.
  • Qualifications: Strong Cisco IOS knowledge and experience with industrial networks required.

The predicted salary is between 36000 - 60000 £ per year.

We are seeking a skilled Network Engineer to design, configure, and deploy network infrastructure for SCADA systems as part of our Unsupported SCADA project. The role involves integrating Cisco IR1101 routers and Schneider MCSESM123F2LG0 managed switches into existing OT environments, ensuring secure and reliable connectivity between legacy networks and new SCADA systems.

Key Responsibilities

  • Deploy and configure Cisco IR1101 routers and Schneider MCSESM123F2LG0 managed switches (8 RJ45 + 4 SFP ports).
  • Implement VLAN segmentation (e.g., VLAN 40 for new SCADA).
  • Configure static routes and NAT on Cisco IR1101 for inter-site communication.
  • Establish Transition VLAN for integration between legacy and new networks.
  • Ensure SCADA traffic flows through Cisco IR1101 without bypass.
  • Maintain connectivity to legacy devices without re-IP.
  • Update firewall rules as required for new IP addresses and NAT configurations.
  • Perform end-to-end connectivity tests between SCADA and PLC devices (local and remote).
  • Validate routing and NAT configurations for multi-site communication.
  • Create detailed network diagrams and configuration documentation.
  • Ensure compliance with NIS and OT security standards.

Required Skills & Experience

  • Strong knowledge of Cisco IOS and router configuration (IR1101 experience preferred).
  • Hands-on experience with Schneider managed switches and VLAN configuration.
  • Proficiency in routing protocols, static routes, and NAT.
  • Familiarity with industrial networks, SCADA systems, and OT security principles.
  • Ability to troubleshoot complex network issues in multi-site environments.

Preferred Qualifications

  • Cisco certifications (CCNA/CCNP).
  • Experience with OT/ICS environments and SCADA integration.
  • Knowledge of firewall rule management and secure remote connectivity.

Tools & Technologies

  • Cisco IR1101 Router
  • Schneider MCSESM123F2LG0 Switch
  • Legacy Westermo devices (L210, MRD, BRD)

Water Domain Experience & Standards

  • Experience working in water utility OT environments (treatment plants, pumping stations).
  • Knowledge of UK water industry standards including NIS Directive and DWI guidelines.
  • Understanding of SCADA systems for water treatment and distribution.
  • Compliance with cybersecurity frameworks for critical infrastructure (e.g., IEC).

Compliance & Standards

  • Adherence to Water OTASP standards including Asset Monitoring, Telemetry, Automation, and SCADA software design.
  • Compliance with NIS Directive for critical infrastructure security.
  • Knowledge of IEC 62443 cybersecurity framework for industrial control systems.
  • Implementation of secure VLAN segmentation (VLAN 10 – OT/ICS, VLAN 20 – Management, VLAN 40 – SCADA).
  • Experience with Azure AD integration for SCADA IPC authentication.
  • Familiarity with security tools such as SIEM logging, Qualys vulnerability scanning, and Microsoft Defender.
  • Ability to configure MPLS and IPSEC VPN tunnels for remote connectivity and backup links (4G failover).

Network and Cybersecurity Engineer (m/f/d) in London employer: Cognizant Technology Solutions

Join a forward-thinking company that prioritises innovation and security in the water utility sector. As a Network and Cybersecurity Engineer, you will thrive in a collaborative work culture that values professional development and offers opportunities for growth through hands-on experience with cutting-edge technologies. Located in a vibrant area, our team enjoys a supportive environment that encourages creativity and ensures compliance with industry standards, making it an ideal place for those seeking meaningful and rewarding employment.
Cognizant Technology Solutions

Contact Detail:

Cognizant Technology Solutions Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Network and Cybersecurity Engineer (m/f/d) in London

✨Tip Number 1

Network and Cybersecurity roles are all about showcasing your hands-on experience. When you get the chance to chat with potential employers, make sure to highlight your practical skills with Cisco IR1101 routers and Schneider switches. Share specific examples of how you've tackled challenges in past projects.

✨Tip Number 2

Networking is key! Don’t just rely on job boards; connect with industry professionals on platforms like LinkedIn. Join groups related to SCADA systems and cybersecurity, and engage in discussions. You never know who might have a lead on your dream job!

✨Tip Number 3

Prepare for technical interviews by brushing up on your knowledge of VLAN segmentation and NAT configurations. Be ready to discuss how you would implement these in real-world scenarios. Practising common interview questions can also help you feel more confident.

✨Tip Number 4

Don’t forget to apply through our website! We love seeing candidates who are genuinely interested in joining our team. Tailor your application to reflect your understanding of the role and how your skills align with our needs in network security and SCADA integration.

We think you need these skills to ace Network and Cybersecurity Engineer (m/f/d) in London

Cisco IOS
Router Configuration
Cisco IR1101
Schneider Managed Switches
VLAN Configuration
Routing Protocols
Static Routes
NAT Configuration
SCADA Systems
OT Security Principles
Troubleshooting Complex Network Issues
Cisco Certifications (CCNA/CCNP)
Firewall Rule Management
Secure Remote Connectivity
IEC 62443 Cybersecurity Framework

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience with Cisco IR1101 routers and Schneider managed switches. We want to see how your skills match the job description, so don’t be shy about showcasing your relevant projects and achievements!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you’re passionate about network and cybersecurity engineering, and how your background makes you the perfect fit for our Unsupported SCADA project. Keep it engaging and personal!

Show Off Your Technical Skills: When filling out your application, make sure to mention your hands-on experience with VLAN segmentation, routing protocols, and NAT configurations. We love seeing candidates who can troubleshoot complex network issues, so share any relevant examples!

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates. Plus, it shows you’re keen to join our team at StudySmarter!

How to prepare for a job interview at Cognizant Technology Solutions

✨Know Your Tech Inside Out

Make sure you brush up on your knowledge of Cisco IOS and the specific routers and switches mentioned in the job description. Be ready to discuss your hands-on experience with Cisco IR1101 routers and Schneider managed switches, as well as VLAN configuration. This will show that you’re not just familiar with the tech but can also apply it effectively.

✨Demonstrate Your Problem-Solving Skills

Prepare to share examples of how you've tackled complex network issues in multi-site environments. Think of specific challenges you've faced, the steps you took to resolve them, and the outcomes. This will highlight your troubleshooting skills and your ability to think critically under pressure.

✨Understand Compliance and Security Standards

Familiarise yourself with the NIS Directive, DWI guidelines, and IEC 62443 cybersecurity framework. Be prepared to discuss how these standards impact your work and how you’ve ensured compliance in past roles. This shows that you take security seriously and understand its importance in the context of SCADA systems.

✨Bring Your Documentation Game

Since creating detailed network diagrams and configuration documentation is part of the role, be ready to talk about your experience with this. You might even want to bring a sample of your work (if possible) to demonstrate your attention to detail and organisational skills. It’s a great way to set yourself apart!

Network and Cybersecurity Engineer (m/f/d) in London
Cognizant Technology Solutions
Location: London
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