TCP/IP

Veterans Health Administration

Full-time · Saint Louis, MO · $106,284 – $138,172

This role maintains and supports advanced imaging and radiological equipment in a healthcare facility, handling installation, repair, calibration, and compliance work. It suits someone with biomedical or electronics training who can troubleshoot complex medical devices and coordinate with clinical and IT teams.

Via USAJOBS · Apply there ↗

U.S. Army Intelligence and Security Command

Fort Meade, Maryland · $146,389 – $190,308

A senior cyber intelligence role within the U.S. military's Defense Civilian Intelligence Personnel System, based at Fort Meade, Maryland, requiring expertise in computer network operations and offensive cyberspace tactics. This position suits experienced intelligence professionals with deep knowledge of network exploitation, system architecture, and military cyber operations who can mentor others and contribute to intelligence production and strategic planning.

Via USAJOBS · Apply there ↗

Crusoe

Full-time · Sunnyvale, CA · $215,000 – $255,000

Crusoe is building a dedicated storage network fabric using RDMA for AI infrastructure, and they need a Staff Network Engineer to architect and operate this system end-to-end. This role suits someone with deep production L2/L3 switching experience who wants full ownership of a foundational system and enjoys working across hardware, software, and organizational boundaries.

Listed on Crusoe’s careers site · Apply there ↗

Voyager

Full-time · Jefferson, CO · $110,000 – $145,000

Voyager Technologies seeks a hands-on systems administrator to manage their enterprise IT infrastructure across cloud, networking, and on-premises environments in Colorado. This role suits experienced IT professionals comfortable supporting both day-to-day operations and long-term infrastructure improvements in a mission-critical defense and space technology setting.

Listed on Voyager’s careers site · Apply there ↗

LangChain

Full-time · San Francisco, CA · $120,000 – $160,000

Join LangChain's founding IT team to manage a rapidly growing SaaS infrastructure and build automation that scales with the company. This role blends hands-on system administration with infrastructure-as-code work, ideal for someone who thrives in a startup environment where you'll wear multiple hats.

Listed on LangChain’s careers site · Apply there ↗

Copper

Full-time · Berkeley, CA · $182,000 – $210,000

This role involves leading firmware development for energy-storage-integrated home appliances, overseeing the complete lifecycle from design through production support. It suits experienced embedded systems engineers who want hands-on technical leadership building connected IoT devices at scale.

Listed on Copper’s careers site · Apply there ↗

Mode

Full-time · Remote

Mode.Inc is hiring a senior backend engineer to own and stabilize a newly acquired VPN product, focusing on its Go-based networking engine and backend services supporting millions of users across restrictive network environments. This role suits someone passionate about privacy infrastructure who enjoys inheriting complex systems, hardening them through testing and documentation, and shipping reliable, user-focused features.

Listed on Mode’s careers site · Apply there ↗

Supabase

Full-time · Remote, Global

Join Supabase's Edge & Networking squad to design and operate the global routing infrastructure that handles traffic at the network perimeter. This role suits experienced infrastructure engineers comfortable with distributed systems, edge networking, and the full stack from DNS to load balancing.

Listed on Supabase’s careers site · Apply there ↗

Reddit

Full-time · Remote - United States · $217,000 – $303,900

Reddit seeks a Staff Software Engineer to design and operate infrastructure protecting the platform from DDoS attacks, bots, and malicious traffic at internet scale. This role combines distributed systems, networking, and security work, requiring both hands-on engineering and mentorship of junior team members.

Listed on Reddit’s careers site · Apply there ↗

AST SpaceMobile

Lanham, MD

This is a hands-on IT support role maintaining hardware, software, and network systems across two facilities for a satellite communications company. It suits someone with desktop support experience who enjoys troubleshooting and can work both independently and collaboratively in a fast-paced environment.

Listed on AST SpaceMobile’s careers site · Apply there ↗