Network Security Engineer
Hybrid Mode
Faced with an ever-increasing cyber-security threat, Sanofi needs to maintain a vigilant approach to protect their systems, infrastructure, and data.
This team, behind Sanofi’s Next Generation Network & Security services and infrastructure that powers it, is looking for a self-motivated and innovative thinking individual to raise the bar on Sanofi’s Network Security systems while maintaining relevance in the rapid moving and evolving network security industry.

As a member of the team, closely with Network Engineering, Cloud, Cybersecurity, Infrastructure, and Architecture teams to implement security controls, improve network resilience, automate security operations, and respond to security incidents.

You will also be interacting with cross-functional team engineers, architects, internal and vendor partners to evangelize and provide NextGEN network security technology solutions to;
Maximize the business value from Sanofi’s Digital Technology and Solutions investments.
Network Security Engineering

- Design and implement scalable, efficient, & cost-effective enterprise network security solutions
- Next-generation firewalls, VPNs, IDS/IPS, secure web gateways, and network access controls.

Keep Sanofi safe through active operation and defense of critical network infrastructure, developing and maintaining firewall policies, security zones, NAT, routing, and access-control policies.
Implement secure LAN, WAN, SD-WAN, Internet, data center, and cloud connectivity.
Design, implement and support network segmentation, micro-segmentation, and Zero Trust security initiatives.




Conduct security reviews of network designs and infrastructure changes.
Ensure network security controls comply with enterprise security standards and policies.
Ultimately, ensure high levels of security, availability, and performance within the Sanofi’s environment.

Cloud & Modern Network Security
Implement security controls across AWS, Azure, and/or other cloud environments.
Secure hybrid and multi-cloud network connectivity.
Design secure connectivity between data centers, cloud platforms, SaaS environments, and remote users.
Support SASE, SSE, Zero Trust Network Access (ZTNA), and cloud security initiatives.
Partner with cloud engineers to secure VPC/VNet, routing, security groups, and cloud firewall architecture.
Security Operations & Incident Response
Monitor network security events and investigate suspicious network activity.
Troubleshoot and respond to network security incidents.
Analyze firewall, proxy, VPN, IDS/IPS, DNS, and network traffic logs.
Perform vulnerability remediation and security hardening of network infrastructure.
Automate service delivery, network security provisioning, configuration, compliance, and operational processes.
Develop scripts and workflows using Python, Ansible, Terraform, APIs,



or similar technologies.
Implement Infrastructure-as-Code and configuration-management practices.
Develop automated security compliance and configuration validation.
Identify opportunities to reduce manual operational activities through automation.
Maintain network security architecture diagrams, standards, procedures, and operational documentation.
Ensure network changes follow enterprise change management and security processes.
7+ years of experience in network engineering or network security engineering.

Strong experience in architecture/design, development, and implementation of large-scale Network Security technology and solutions.
Experience with LAN, WAN, Internet, data centre, and/or SD-WAN environments and understanding of Network Routing and Switching.

- Experience with AWS and or Azure networking, Cloud solutions and Network Access Control.
- Experience with SASE, SSE, ZTNA, and Zero Trust architectures.
- Understanding of and exposure to network segmentation and methodologies like SCADA and enable it to be both manageable and scalable.

Experience using firewall security orchestration and Python, Ansible, Terraform, REST APIs, and network automation.
Hands-on experience with Audit for Firewalls configurations, ACLs and implementing security controls aligned to Sanofi’s policies and standards.
Occasional work outside business hours
Good communication and presentation skills in English including the ability to convey complex security related concepts to technical and non-technical audiences alike.

📌 Network Security Engineer (hybrid or remote) (Secunderabad)
🏢 Sanofi India
📍 Secunderabad