Role: Network Engineer Principal Accountabilities: A member of the Network Solutions team, design and implement scalable, efficient, & cost-effective network infrastructures & Software Defined Networking (SDN) ecosystem solutions Continuous improvement of Network platform solutioning, specification & design, systems integration, platform lifecycle management. Ensure high levels of security, availability, and performance within the Sanofi's network environment. Drive process improvements that integrate automation, improve efficiency, and improve service delivery Establish and drive to maintain standards while building and improve upon documentation, policies, & procedures for Network Solutions Team Knowledge, Skills and Education: * Bachelor's degree, or relevant work experience. * 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. o Expert level routing is a must (BGP & OSPF) * Five or more years of relevant work experience in; o Networking Engineering - Routers & Switches along with Design, implementation and migration experience of large-scale networks o Experience with SD-WAN technologies (Viptela, VeloCloud, Cloud Genix) preferred o Design, implementation and migration experience with Cisco Catalyst and Nexus 9K/7K/5K/2K o Design, implementation and migration experience & knowledge with Aruba technology o Arista working knowledge a plus. o VMWare NSX, and Cisco ACI experience a plus. * Networking in cloud computing experience (AWS, GCP & Azure) * Familiarity and understanding of tunneling protocols (vxLAN, GRE, IPSec) * Configuration management of networking devices using automation tools and API scripting with C/C++, Python and/or Ansible a plus. * Working knowledge of DNS, Tacacs, Radius, DHCP, NetFlow, Syslog, etc. * Knowledge of Checkpoint & Cisco Firewall solutions. * Exposure to native cloud security solutions such Zscaler cloud Firewall, Illumio ASP, AVI Networks * Exposure to SCADALAN model is a plus. * Experience with SDN/NFV platform along with Cloud Architecture and development Network platform architecture and design. * Multi-vendor technology validation, prototyping along with system integration experience. * Strong documentation skills in High Level Architecture & Design Solution * Vendor technical management experience * Technology leadership skills along with strong interpersonal skills. * Travel may be required. It is a plus if: * Master's degree in Computer Science or related data communication technology discipline and certifications (Cisco, Aruba etc.). * Extensive application performance and network operational troubleshooting along with network monitoring/analysis experience * Background working in Linux environments with Unix scripting and/or software development experience. o Experience with Linux virtualization environments and technologies (KVM, OVS, LXC, etc.). * Familiarity with networking within Container technologies. * Familiarity with IT/OT security concepts * Familiarity of Open API and data modeling verification and development. * Open Source tools development, implementation, and collaboration experience. * Policy driven network design.