Senior Network Engineer
Fidelity Investments • Merrimack, New Hampshire • Posted July 18, 2026
Position Overview
Job Description
:The Network Core and Site Engineering (NCSE) team is responsible for the architecture, engineering, deployment, and support of the Fidelity network across the Global WAN (, Colo’s, International backbone, Data Center Interconnects) and LAN (data center network fabric, regional campus & investor center wired/wireless).
The Senior Network Engineer on the Network Core and Site Engineering team is responsible for the design, engineering, and implementation of Fidelity Investments’ wired & wireless global network infrastructure with a focus on stability, automation, and innovation. Engineer and operate LAN/WLAN/WAN environments traversing multiple platforms, supporting Enterprise Infrastructure teams on projects including engineering and implementing new and upgrading existing network hardware, code certification as well as keeping the network secure through tactical change management. Additional duties include operational support and...