Senior Systems Engineer - HiveOS Salt Lake

Senior Systems Engineer – HiveOS

Do you enjoy owning critical systems and solving hard integration problems? Are you excited to ship quickly and deliver software that runs on real devices?

Passive Logic
Software Engineering
Posted on Feb 13, 2026
Salt Lake City

Passive Logic is the first fully autonomous platform for buildings. We’ve reinvented the fundamental principles of automation to democratize technology, optimize buildings, and reduce the world’s carbon footprint. We are a team of technologists, engineers, and creatives dedicated to making a sustainable impact through real-world solutions.

This is a career-defining opportunity to play a crucial role in a hyper-scale AI company that is transforming the future of autonomous systems, energy, and the built environment.

This role owns the architecture and evolution of HiveOS, our embedded Linux runtime environment. You will define and improve the service model, upgrade semantics, observability surface, and security boundaries of the runtime while ensuring clean, well-defined integration contracts with the broader platform. This is a hands‑on systems role focused on building durable runtime foundations.

Own HiveOS runtime architecture: Define and evolve the service model, container/runtime structure, environment configuration system, and upgrade semantics for HiveOS and HiveMiniOS. Ensure the runtime remains coherent, durable, and maintainable as the platform evolves.

Improve OTA and release workflows: Architect and implement reliable firmware update mechanisms, versioning strategy, rollback safety, and release compatibility for deployed systems.

Support observability and telemetry: Coordinate telemetry metrics, traces, and logs shipped from devices, and tune what is collected and exported based on real-world bandwidth constraints.

Turn field issues into structural improvements: Investigate complex runtime failures and convert recurring integration problems into architectural simplifications or contract clarifications.

Your experience may not meet all requirements; we’ll consider passion and growth mindset.

• Proven experience:
  
  Experience with Linux, systemd, and containers.
• Exceptional communication skills:
  Ability to define and document system contracts clearly and communicate technical boundaries across teams.
• Organized and strategic:
  Ability to identify recurring runtime and integration failures and evolve architectural boundaries to prevent them.
• Collaborative mindset:
  Ability to work across teams to define clear runtime boundaries and integration contracts.
• Adaptability:
  Comfortable in a fast‑paced startup environment, eager to learn, iterate, and innovate.
• Problem solving:
  Own this role. When issues arise, be the empowered force that solves them, rolling‑up.

• Attention to detail:
  Demonstrate strong attention to detail in your work. Be willing to dig into nuances, talk through tradeoffs, and deliver high‑quality results.
• Experience writing and reviewing C code.
• Experience with container technology and how to secure it.

• Experience writing and reviewing Swift code.
• Willingness to learn new languages deeply, including understanding design decisions, tradeoffs, and common pitfalls.

• Competitive compensation
• Generous equity share package
• Medical, dental and vision coverage
• Disability and life insurance options
• Flex PTO
• Team‑building events
• Free catered lunch in the office Monday—Friday
• Free ski pass (We are at the base of Big Cottonwood Canyon)
• Free National Park pass
• Onsite gym

This role is based in our Salt Lake City headquarters. We believe that creativity and cohesion flows best when we are all together. When you’re constantly innovating, transforming whole industries, inventing new products and processes, and creating a more sustainable future through technology—and we are doing all these things—we believe we’re better as a team in‑person. That’s why all of our teams work from one of our office locations, five days a week.

• A cover letter telling us why you're the perfect candidate for Passive Logic.
• A resume.
• A…