Platform Infrastructure Engineer, Security-Leaning

Pronoia Energy

$125K — $150K *
Aerospace & Defense
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Deep backend and systems engineering experience with an emphasis on bare-metal or on-premises systems, not just cloud solutions.
  • In-depth knowledge of sandboxing and untrusted code isolation techniques, such as network namespaces or egress filtering.
  • Strong security mindset that incorporates default-deny policies and ensures auditable, version-controlled infrastructure.
  • Ability to function as a founding generalist while later delegating to specialized hires.
  • Self-starter who excels in ambiguous and fast-paced environments.

Responsibilities

  • Build local model serving and data infrastructure on owned on-premises hardware.
  • Establish a sandboxed code execution environment with default-deny networking.
  • Implement a provenance and audit system to track data origins.
  • Craft the system architecture to include security protocols and data classification from the start.
  • Adapt to multiple roles initially, transitioning to specialized roles as the team grows.

Benefits

  • Opportunity to address significant engineering challenges and innovate in quantum energy storage.
  • Equity in a promising startup along with performance-based incentives.
  • Access to advanced labs, tools, and resources within a flexible and collaborative workplace.
  • Comprehensive health insurance, unlimited PTO, professional development funding, and relocation support if necessary.
  • Culture focused on innovation that allows your work to drive market impact.
Full Job Description
Role Summary:

To meet our ambitious goals we are building an internal, grounded, agentic AI system that accelerates our research, and we are hiring a Platform and Infrastructure Engineer to build the body and nervous system it runs on. This is a foundational, high-reward role for someone who makes a system both reliable and locked-down at the same time. In this role you will turn our owned hardware, an on-premises AI computer and database, into a real working platform: reliable local model serving, an on-prem database that serves as both the search index and the provenance and audit store, and a sandboxed execution environment where AI-generated code runs without reaching the internet or touching sensitive data. The single most important instruction in this role is to bake trust-boundary discipline into the codebase from day one, so that hardening it into a fully locked-down enclave later is a migration, not a rewrite. This role is onsite in Torrance, California.

Key Responsibilities:

  • Build reliable local model serving and data infrastructure on owned, on-premises hardware.
  • Stand up a sandboxed code-execution environment with default-deny networking.
  • Implement the provenance and audit store that records where every fact came from.
  • Design the early system already shaped like the secure end-state, with data-classification and boundary discipline built in.
  • Wear several hats as a founding generalist and later hand specialties to dedicated hires.


Required Qualifications:

  • Deep backend and systems engineering with genuine bare-metal or on-premises experience, not cloud-only.
  • Real sandboxing and untrusted-code-isolation depth, for example network namespaces, seccomp, or egress filtering.
  • A security instinct that shows up as default-deny defaults and auditable, versioned infrastructure.
  • Comfort being a founding generalist who later hands specialties to dedicated hires.
  • A self-starter who thrives amid ambiguity and rapid iteration.


Preferred Qualifications:

  • A defense, aerospace, or regulated-data background that makes the enclave mindset second nature.
  • Experience running your own GPU fleet rather than renting cloud compute.
  • Familiarity with containerization, orchestration, and GPU-serving infrastructure.
  • Prior work in deep tech R&D alongside interdisciplinary teams.


What We Offer:

  • Chance to solve one of the world's biggest engineering challenges and pioneer quantum energy storage.
  • Competitive salary, equity in a transformative startup, and performance-based incentives.
  • Access to cutting-edge labs, tools, and resources in a flexible, collaborative work environment.
  • Comprehensive benefits: health insurance, unlimited PTO, professional development stipend, and relocation assistance if needed.
  • A culture of innovation where your work will accelerate our path to market impact.


If you're excited to tackle this real-world quantum problem and build the energy systems of the future, apply with your resume and cover letter detailing relevant projects.

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