Senior Network Engineer

Sanofi; Hyderabad; On-site; INR 1,800,000 - 2,400,000; Full time

Job summary

Sanofi is seeking a Senior Network Engineer in Hyderabad to define the long-term network and security strategy. You will lead architecture across SDN, multi-cloud, and SASE, serving as a senior escalation point for critical incidents and translating business needs into scalable solutions.

You will drive automation, platform modernization, and cost-effective network design across on-prem and cloud environments, collaborating with cross-functional teams and external partners.

Qualifications

• 10+ years in enterprise network engineering and security.
• Experience designing large-scale networks with multi-cloud integration.
• Strong leadership and communication skills for cross-functional teams.

Responsibilities

• Define long-term network and security strategy and roadmaps.
• Lead architecture for SDN, SASE, and multi-cloud networks.
• Escalation point for critical incidents and complex issues.
• Translate business requirements into scalable network solutions.
• Drive IaC initiatives with automation tools and APIs.

Skills

Network architecture

BGP

OSPF

SDN

SASE

ZTNA

NGFW

Python

Ansible

Terraform

AWS

Azure

VXLAN

GRE

IPSec

DNS

TACACS

Radius

DHCP

NetFlow

Syslog

Cisco Nexus

Aruba

Palo Alto

Tools

Ansible

Terraform

Python

AWS

Azure

Nexus/Catalyst

Aruba Wireless

Palo Alto

Job description

Job title: Senior Network Engineer Location: Hyderabad Hybrid Mode.

Our Team:

Develop, Deploy and Manage Next Generation (NextGEN) Network technology solutions aligning with Sanofi’s vision and growth are the key functions of Sanofi’s Connectivity Products team. 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 infrastructure while maintaining relevance in the fast moving and evolving network industry. As a member of the team, you will also be interacting with cross-functional team engineers, architects, internal and vendor partners to evangelize and provide NextGEN network technology solutions to; 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. Pursue progress, discover extraordinary Better is out there. Better medications, better outcomes, better science. But progress doesn’t happen without people – people from different backgrounds, in different locations, doing different roles, all united by one thing: a desire to make miracles happen. So, let’s be those people.

At Sanofi, we provide equal opportunities to all regardless of race, colour, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, ability or gender identity.

Watch our ALL IN video and check out our Diversity Equity and Inclusion actions at sanofi.com!

We are an R&D driven, AI-powered biopharma company committed to improving people’s lives and creating compelling growth.

Our team is guided by one purpose: we chase the miracles of science to improve people’s lives. We want to build a healthier, more resilient world, and turn the impossible into the possible by discovering, developing, and delivering medicines and vaccines for millions of people around the world.

Discover more about us visiting www.sanofi.com or via our movie We are Sanofi Start a career that makes a difference. Reinvention is in our DNA. It’s what drove our evolution from a small French enterprise to one of the world’s leading biopharma companies. Whether it’s using AI to shorten drug-discovery times or building trust in healthcare, you could be helping our teams make life better for patients, partners, and communities. This is where you grow your career. We open the door for you to explore new opportunities, push your limits, and connect with people who are driven by a shared purpose: we chase the miracles of science to improve people’s lives.