Staff Software Engineer – Embedded Networking

Job not on LinkedIn

🕒 August 18

🇺🇸 United States – Remote

💵 $130k - $180k / year

⏰ Full Time

🔴 Lead

⚙️ Systems Engineer

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

👻 Ghost score 19%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Johnson Controls

WebsiteLinkedInAll Job Openings

10,000+ employees

Founded 1885

🏗️ Construction

🏥 Healthcare

📦 Logistics

Construction • Healthcare • Logistics

Johnson Controls is a global leader in creating smart building technologies, software, and services. With over 100,000 employees across 150 countries, the company offers the world's largest portfolio in HVAC equipment, building automation, and control systems. Their innovative solutions include industrial refrigeration, fire detection, and security systems, enhancing efficiency and sustainability. Johnson Controls is committed to helping customers achieve their sustainability goals with technologies like OpenBlue, which provides real-time data visibility and management systems for optimizing building performance. Their services span from digital solutions for energy management to advanced security and fire safety systems.

📋 Description

• Extend Airwall onto new classes of devices and hardware targets • Own embedded software on constrained targets, including OpenWRT and ARM-based platforms • Work in the secure data path, including identity-based overlay networking, IPsec/ESP, IKE, tunnel encapsulation, NAT traversal, Layer 2 over Layer 3, and certificate-based PKI identity • Modernize the Airwall technology stack to improve performance, observability, and maintainability • Diagnose hard networking failures in live customer environments using packet-level analysis • Contribute to core codebases and improve code quality, testing, and performance • Mentor engineers and serve as a technical role model • Use AI coding tools such as Claude, Copilot, Codex, or Cursor in the normal workflow • Communicate directly with customers running the protected networks • Deliver software that reaches production and performs reliably

🎯 Requirements

• 8+ years shipping production networking software, with significant embedded or kernel-adjacent systems experience • Deep expertise in C, C++, or Rust, with ability to work across all three • Command of networking Layers 2 through 4 • Ability to reason from the wire upward and read packet captures unaided • Hands-on embedded Linux experience on resource-constrained hardware or OpenWRT • Working knowledge of IPsec, ESP, IKE, encrypted transport, certificate-based identity, and PKI • Track record of shipping into environments where downtime has serious consequences • Clear communication and sound judgment across product and engineering teams • Preferred: Host Identity Protocol (RFC 7401) or another identity-based networking overlay • Preferred: Operational technology or industrial control systems experience, including BACnet or Modbus • Preferred: Hardware bring-up, board support packages, or firmware release engineering exposure • Preferred: Contributions to open source networking projects

🏖️ Benefits

• Competitive bonus plan based on individual, group, and corporate performance • Competitive benefits package • Remote work arrangement