By Light Professional IT Services LLC readies warfighters and federal agencies with technology and systems engineered to connect, protect, and prepare individuals and teams for whatever comes next. Headquartered in McLean, VA, By Light supports defense, civilian, and commercial IT customers worldwide. Position Overview By Light is seeking IP and Optical Network Test Engineers to support a future contract award on the SETI Small Business contract vehicle. Our IP and Optical Network Engineers assess, test, and recommend solutions and technologies to improve all aspects of DISN Transport systems. These technologies include network devices (Optical Transport Systems, Optical Line Systems, Optical Transponders, routers, switches, firewalls, and Intrusion Detection Systems (IDS), and services Authentication, Authorization and Accounting (AAA), Access Control List (ACL), secure remote access (i.e Secure shell, Secure VPN, IPSec), and IPv6 capable devices. Network Test Engineers are responsible for all DISN aspects regarding the design review/recommendation, lab testing, evaluation/certification, and implementation/deployment as well as provide Tier 3 support for the DoD’s NIPRNet and SIPRNet backbone networks.