Senior Network Engineer

Trinity Cyber pioneered active network defense — preemptive security that surgically removes threats from live traffic before attackers can establish presence on endpoints and networks. While competing Detection & Response approaches demand alert triage and reactive firefighting, our Full Content Inspection™ capability meets adversaries in the network and cleans malicious content from protocols, code, and files in real time — with sub-millisecond inspection latency and near-zero false positives. Every day, we work at scale: protecting over 3 million users and processing 1.5 trillion content objects. We build and maintain the high-performance backbone that allows our products to actively secure and defend our customers against global cybersecurity threats in real-time. As a Senior Network Automation Engineer, you aren’t just managing a network; you are ensuring the delivery of a critical security mission. We are looking for a seasoned professional—someone with 10+ years of experience—who understands that a truly great network is one that is silent, stable, and meticulously engineered. Due to federal contracts, we are limited to hiring only US citizens. How We Work: Strategic Autonomy : We hire self-starters and give them the space to innovate. As a senior member of the team, you will operate with minimal direction. We don't micromanage; we provide the objective and trust you to architect the solution. Sophistication & Scale : You will tackle high-complexity work in a low-bureaucracy environment. We’ve removed the corporate fluff so you can focus on the technical challenges of global-scale networking. Remote Excellence : Enjoy the flexibility of a 100% remote role while collaborating with a high-caliber team that values technical integrity above all else. What You’ll Do: Empower Protection : Maintain and optimize the complex firewall and VPN architectures that enable our security products to actively shield and defend our customers. Architect & Automate : Use Python and modern automation frameworks to build a network that manages itself. You’ll replace manual repetition with robust, testable code. Strategic Troubleshooting : Take point on complex Layer 2/Layer 3 and dynamic routing (BGP) challenges. You are the final point of escalation who identifies the root cause and implements a permanent fix. Design for Resilience : Continuously evaluate and improve our network architecture to increase performance, security, and stability. Core Requirements: Experience performance tuning Linux systems, particularly related to networking. Experience with networking concepts and debugging tools tcpdump/wireshark. Knowledge of basic networking including L2 and L3 fundamentals, stateful devices (firewalls, proxies), etc. Understanding of basic protocols (LACP, LLDP, ARP, ND, IP (v4/v6), TCP, UDP, BFD, SMTP, TFTP, IKE/ESP, TLS). Familiarity with networking concepts like dynamic routing (OSPF, iBGP/eBGP, filter-based forwarding, rpm/event scripts), ISP/IX full table peering and multi-ISP environments. Experience working with any/all of Nautobot, Telegraf/InfluxDB/Grafana, Elasticsearch/Logstash/Kibana, and other automation and monitoring tools are strongly preferred. Experience with any/all of Juniper (especially QFX5K based EVPN environments), VMware NSX-T, F5 BIG-IP (primary focus on SSLO), Palo Alto NGFW and Panorama would also be a big plus. Familiarity with issues surrounding application layer proxying of network protocols. Python application development knowledge and experience. Proven ability to learn quickly and solve significant problems with minimal direction. Willingness to perform deep research and/or reverse engineer poorly documented standards. Bachelors degree in Computer Science, Technology, Engineering, or Math is preferred. Can operate in a closed private hosted environment without access to public cloud tools. Impeccable troubleshooting skills and ability to rapidly understand the basic design and operation of new systems. Must possess the highest level of personal integrity, value team success over individual achievement, and enjoy working on a fully remote team in a very high tech environment. Why Join Us? You’ll be given the keys to a complex, high-speed environment where your work has immediate, tangible results. No red tape. No hovering managers. Just hard problems, a talented team, and a key role in helping to define the network security of the future. This employer participates in E-Verify to confirm employment eligibility.