Network Engineer

Sanofi; Hyderabad; On-site; INR 350,000 - 700,000; Full time

Job summary

Sanofi in Hyderabad is seeking a senior Network Engineer to design, deploy, and manage NextGEN network and security infrastructures. You will work across enterprise routers, switches, firewalls, and SDN tools, ensuring scalable, cost-efficient solutions in a hybrid environment.

You will drive automation, IaC initiatives with Ansible/Terraform, and Python-based tooling while coordinating with cross-functional teams, vendors, and internal partners to support cloud integration (AWS/Azure) and

Qualifications

• 7+ years of progressive and hands-on experience in enterprise Network and NetSec engineering.

Responsibilities

• Designing and deploying scalable, efficient, & cost-effective Network, Network Security infrastructures & SDN solutions.
• Managing core network hardware: routers, switches, NGFWs, load balancers, wireless controllers.
• Traffic optimization using BGP/OSPF/EIGRP and QoS for efficient data transfer.
• Implementing SASE, zero-trust, VPN tunnels (IPsec/SSL) and perimeter controls.
• Spanning on-prem data centers and multi-cloud environments (AWS, Azure).
• Automation and observability to improve efficiency and service delivery; IaC initiatives with Ansible, Terraform, Python.
• Resolve escalated application performance and network/cloud operational issues.
• Occasional work outside business hours; travel may be required.

Skills

BGP

OSPF

EIGRP

SASE

ZTNA

NGFW

Cloud integration

IaC

Python scripting

Automation tooling

Tools

Ansible

Terraform

Python

AWS

Azure

Job description

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 platform 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

• Designing and deploying scalable, efficient, & cost-effective Network, Network Security infrastructures & Software Defined Networking (SDN) ecosystem solutions.
• Core network hardware including enterprise routers, switches, NextGEN firewalls, load balancers, and wireless controllers.
• Traffic Optimization by managing and orchestrating 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), set up secure VPN tunnels (IPsec, SSL), and enforce perimeter access controls
• Resilient, high-performance network architectures spanning physical on-premises data centers and multi-cloud environments (e.g., AWS, Azure Cloud).
• Drive efficiency & improvements that integrate automation and observability - monitoring and telemetry to improve efficiency, service delivery, automate configuration changes.
• Opportunities to reduce manual operational activities 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.
• Occasional work outside business hours Travel may be required.

About you

• 7+ years of progressive and hands‑on experience in enterprise Network and NetSec engineering, with a proven track record of handling large‑scale deployment projects.
• 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, Zscaler 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

Our Culture

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.