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Trinity Cyber · 19 hours ago

Senior Infrastructure Engineer

United States

Full-time

Remote

Senior Level, Lead/Staff

10+ years exp

Trinity Cyber pioneered active network defense, focusing on preemptive security measures to protect users from cybersecurity threats. The Senior Infrastructure Engineer will maintain and optimize firewall and VPN architectures, automate network management, and troubleshoot complex networking issues to ensure the security of the company's products.

Cyber SecurityInformation TechnologySoftware

No H1B

U.S. Citizen Only

Responsibilities

Maintain and optimize the complex firewall and VPN architectures that enable our security products to actively shield and defend our customers

Use Python and modern automation frameworks to build a network that manages itself. You’ll replace manual repetition with robust, testable code

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

Continuously evaluate and improve our network architecture to increase performance, security, and stability

Qualification

PythonLinux performance tuningNetworking conceptsDynamic routingFirewall architectureVPN architectureAutomation toolsApplication layer proxyingImpeccable troubleshootingResearch skillsTeam collaboration

Required

10+ years of experience in network engineering

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, HTTP, 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 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

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

US citizenship due to federal contract requirements

Preferred

Experience working with any/all of Nautobot, Telegraf/InfluxDB/Grafana, Elasticsearch/Logstash/Kibana, and other automation and monitoring tools are strongly preferred

Bachelors degree in Computer Science, Technology, Engineering, or Math is preferred