About the Role:

Expleo is a trusted partner for end-to-end, integrated engineering, quality services, and management consulting for digital transformation. As part of the Expleo UK Cybersecurity Practice, you will join a managed Cyber Operations service for a major UK energy network operator that forms part of the UK's Critical National Infrastructure (CNI).

As a Security Engineer | Network, you will provide design, review, and analysis expertise across the client's firewalls, intrusion prevention, secure web gateway, and remote access controls. This is a design, review and advisory role working within Expleo's offshore consultancy team.

Responsibilities:

- Assess firewall, intrusion prevention and gateway change requests for security risk and design quality.

- Carry out quarterly firewall rule-base reviews using configuration exports.

- Analyse network security log and alert reporting monthly and during incidents.

- Track intrusion prevention signature releases and advise on critical updates.

- Contribute to secure web gateway, remote access and CASB policy design and review.

- Review network segmentation and IT/OT boundary controls.

- Define audit logging requirements for network security devices.

- Produce internet access usage and network security reports.

- Maintain network security infrastructure diagrams and configuration documentation.

Qualifications :

- Degree in computer science, networking, cybersecurity or a related discipline, or equivalent professional experience.

- Vendor firewall certification (e.g. PCNSE or Fortinet NSE 4 or above).

- CompTIA Security+, CySA+, CCNP Security, or an SSE/SASE vendor certification would be advantageous.

Essential Skills :

- Next-generation firewall design and rule-base review (e.g. Palo Alto, Fortinet, Check Point).

- Intrusion prevention and network detection technologies (e.g. Trend Micro TippingPoint, Cisco Firepower, Darktrace).

- Secure web gateway, SSE/SASE and remote access (e.g. Prisma Access, Zscaler, Netskope).

- TCP/IP, routing, VPN, network segmentation and IT/OT boundary concepts.

- Security log analysis and ITIL change and incident processes.

What Do I Need Before I Apply :

- Right to work in India and based in or willing to relocate to Chennai.

- Willingness to complete Expleo enhanced pre-employment background screening.

- Ability to work hours that overlap with the UK business day.

- Excellent written and spoken English.