Senior Network Engineer

Job title: Senior Network Engineer

• Location: Hyderabad
• Hybrid Mode.
  

Our Team

• Maximize the business value from Sanofi’s Digital Technology and Solutions investments.
• Unleash innovation for our organization, employees, and customers.
  

Main Responsibilities

• Leadership

• Define the long-term technical strategy and roadmap for Connectivity Products – Network and Security.
  

• Define network and security architecture, standards, patterns, and engineering best practices.
• Provide technical leadership for platform modernization, complex network and security projects and transformation initiatives.
• Serve as a senior escalation point for critical network security incidents and complex technical issues.
• Translate business, cybersecurity, and technology requirements into scalable engineering solutions.
• Influence enterprise technology strategy and investment decisions.
  

• Designing and deploying scalable, efficient, & cost-effective network infrastructures & Software Defined Networking (SDN) ecosystem solutions.
• Resilient, high-performance network architectures spanning physical on-premises data centers and multi-cloud environments (e.g., AWS, Azure Cloud).
• Core network hardware including enterprise routers, switches, firewalls, load balancers, and wireless controllers.
• Traffic Optimization by managing advanced communication and routing protocols (such as BGP, OSPF, EIGRP, and QoS) to ensure efficient, error-free data transfer.
• Network Security by implementing SASE, zero-trust principles, managing Next-Generation Firewalls (NGFW), and enforce perimeter access controls
• Continuous improvement of Network platform solutioning, specification & design, systems integration, platform lifecycle management, standards, and documentation.
• Drive process improvements that integrate automation and monitor effectiveness to improve efficiency, service delivery, automate configuration changes and eliminate manual errors with Network Infrastructure-as-Code (IaC) initiatives using tools like Ansible, Terraform, Python with APIs, CI/CD pipelines, and automation platforms.
• Engage and resolve escalated application performance and network / cloud operational issues.
• Ensure high levels of security, availability, and performance within the Sanofi’s network environment.
  

About You

• 10+ years of experience in enterprise network engineering and network security.
• 7+ years of advanced network and security engineering/architecture experience.
  

• Technology leadership skills along with strong Interpersonal & Problem-Solving skills.
• An enthusiasm for staying up to date with the very latest updates with Network technology solutions.
• Relevant work experience in -
• Networking Engineering – Routers & Switches along with Design, implementation, and migration experience of large-scale networks
• Experience with LAN, Wi-Fi, WAN, Security & SASE technologies.
• Design, implementation, and migration experience with Cisco – Nexus / Catalyst & Aruba (Wireless), Palo Alto technology.
• Cloud & Hybrid Expertise: Proven experience connecting physical corporate infrastructure seamlessly to cloud platforms such as AWS VPCs, Azure ExpressRoute.
• Designing & Deploying SASE/SSE Solutions: Implement CASB, SWG, ZTNA, and related capabilities; designing secure access across cloud, internet, and private environments.
• Automation Mindset: Hands-on experience using scripting languages or automation frameworks to manage network infrastructure.
  

• Strong Layer 2/Layer 3 network architectural design and engineering background and experience (LAN/WLAN/WAN and Layer 2/Layer 3) in a large enterprise network environment.
• Expert level routing is a must (BGP & OSPF)
• Knowledge of languages for scripting
• Provisioning & Configuration management of networking devices using automation tools and scripting - Python, Ansible
• Networking in cloud computing experience (Azure & AWS)
• Familiarity and understanding of tunnelling protocols (vxLAN, GRE, IPSec)
• Working knowledge of DNS, Tacacs, Radius, DHCP, NetFlow, Syslog, etc.
• Exposure to SCADA modelled Network and concepts.
• Strong documentation skills in High Level Architecture & Design Solution
• Good communication and presentation skills including the ability to convey complex network related concepts to technical and non-technical audiences.
• Vendor (technical) management experience
• Occasional work outside business hours
• Travel may be required.