
Phaidra delivers AI-driven closed-loop control to improve stability, energy efficiency, and reliability in mission-critical industrial facilities. The company uses deep reinforcement learning and purpose-built AI agents to continuously control HVAC, cooling, and power systems, integrating with building management systems (BMS), CMMS, EPMS, and data historians without requiring new hardware. Phaidra is offered as a SaaS subscription platform with products for on-site operations (Prism LLM assistant) and factory-level orchestration (Factory AI agents) that optimize thermal stability and tokens-per-watt for AI workloads. The technology targets data centers, refineries, pharmaceutical plants, and steel mills and provides real-time and historical performance visibility. Founders and engineering leadership combine expertise from Google DeepMind, cloud operators, and industrial controls to scale deployments in large-scale facilities.

Phaidra delivers AI-driven closed-loop control to improve stability, energy efficiency, and reliability in mission-critical industrial facilities. The company uses deep reinforcement learning and purpose-built AI agents to continuously control HVAC, cooling, and power systems, integrating with building management systems (BMS), CMMS, EPMS, and data historians without requiring new hardware. Phaidra is offered as a SaaS subscription platform with products for on-site operations (Prism LLM assistant) and factory-level orchestration (Factory AI agents) that optimize thermal stability and tokens-per-watt for AI workloads. The technology targets data centers, refineries, pharmaceutical plants, and steel mills and provides real-time and historical performance visibility. Founders and engineering leadership combine expertise from Google DeepMind, cloud operators, and industrial controls to scale deployments in large-scale facilities.
Founded: 2019
Headquarters: Seattle, Washington
Product: Closed-loop AI control platform for industrial facilities and data centers
Tech: Deep reinforcement learning-based control agents
Notable investors / partners: Index Ventures, NVIDIA, Amazon, Sony
Energy and operations optimization for data centers and heavy industrial facilities (e.g., refineries, pharmaceutical plants, steel mills).
2019
Software Development
Crunchbase lists a grant dated September 24, 2024 with Amazon as an investor
“Index Ventures, NVIDIA, Amazon, Sony listed among investors and strategic partners”
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About Phaidra Phaidra is building the future of industrial automation.
The world today is filled with static, monolithic infrastructure. Factories, power plants, buildings, etc. operate the same they've operated for decades — because the controls programming is hard-coded. Thousands of lines of rules and heuristics that define how the machines interact with each other. The result of all this hard-coding is that facilities are frozen in time, unable to adapt to their environment while their performance slowly degrades.
Phaidra creates AI-powered control systems for the industrial sector, enabling industrial facilities to automatically learn and improve over time. Specifically:
Our team has a track record of applying AI to some of the toughest problems. From achieving superhuman performance with DeepMind's AlphaGo, to reducing the energy required to cool Google's Data Centers by 40%, we deeply understand AI and how to apply it in production for massive impact.
Phaidra's ability to achieve its mission is determined by our ability to work together — as defined by our core values: Transparency , Collaboration , Operational Excellence , Ownership , and Empathy. We seek individuals who embody these values, as they are instrumental in ensuring our team consistently delivers excellence and fosters an engaging and supportive culture
Phaidra is based in the USA, but we are 100% remote with no physical office. We hire employees internationally with the help of our partner, OysterHR. Our team is currently located throughout the USA, Canada, UK, Italy, Sweden, Spain, Portugal, the Netherlands, Singapore, Australia, and India.
The Opportunity At Phaidra, security is the bedrock of trust for our customers operating the world's most critical infrastructure. We are looking for a Senior Product Security Engineer to partner directly with our Agentic AI department .
This team is at the forefront of our mission, building autonomous agents responsible for optimizing the operational fabric of AI factories. These agents don't just chat; they act. They make real-time decisions to optimize power usage, cooling efficiency, and hardware health, creating a more stable and efficient environment for massive-scale compute.
This is a high-stakes environment where the integrity and security of AI-driven decisions are paramount. You will tackle the unique security challenges of deploying autonomous agents that interact directly with physical control systems. Security failures here don't just mean data leaks; they could mean operational downtime or physical degradation of critical hardware.
We need a security expert who thrives working hand-in-hand with AI researchers and engineers. Your role is to embed security into the DNA of our Agentic platform, ensuring that as our agents learn and explore, they do so within unbreakable safety boundaries.
We are seeking a team member located in the following area: UK Responsibilities
Key Qualifications
Agentic AI & RL Security: Proven understanding of the security risks associated with Reinforcement Learning, Autonomous Agents, or automated decision-making systems.
AI Partnership: Demonstrated experience working embedded with AI system developers and researchers. You understand the difference between "probabilistic" (AI) and "deterministic" (Code) and how to secure the bridge between them.
Core Experience: 5+ years of work experience in product security, application security, or a closely related security engineering role.
Safety Engineering Mindset: You understand that in physical systems, "Availability" and "Safety" often outrank "Confidentiality." You are familiar with concepts like fail-safes and human-in-the-loop controls.
Technical Depth:
Strong programming experience, ideally with Python (essential for ML/AI ecosystems) or Go.
Familiarity with agent frameworks (e.g., LangChain, AutoGPT) or RL libraries (e.g., Ray RLLib).
Proven experience securing Cloud infrastructure (GCP) and Kubernetes.
Deep understanding of Authentication & Authorization (specifically non-human identities/workload identity).
Advanced MLOps: Direct, hands-on experience securing MLOps tooling (e.g., Kubeflow, MLflow) and deep understanding of securing complex data and model-training pipelines.
Preferred Skills & Experience
Our Stack
Onboarding In your first 30 days — (Foundation and AI Landscape Familiarization)
In your first 60 days — (Threat Modeling & Guardrails):
In your first 90 days — (Strategy & Automation):
General Interview Process
All of our interviews are held via Google Meet, and an active camera connection is required.
Base Salary UK Residents:
In addition to base salary, this position is eligible for equity. Final salary will be determined based on several factors, including a candidate's qualifications, skills, competencies, experience, expertise, education and location. In some cases, final compensation may fall outside the posted range. Salary ranges are regularly reviewed and may be adjusted in response to market trends. Benefits & Perks
Please note: Not all of Phaidra's benefits and perks listed above apply to temporary employees such as interns.
On being Remote We take a thoughtful and intentional approach to remote collaboration. Inspired by pioneers like GitLab, we embrace proven best practices to foster an exceptional remote work environment. Our culture is documentation-first, and we prioritize asynchronous communication to support focus and flexibility across time zones. While we value independence, we stay closely connected through tools like Slack and video conferencing. Weekly all-hands meetings help us align and build strong relationships, and we regularly host virtual team-building activities and social events to maintain a sense of camaraderie.
Equal Opportunity Employment Phaidra is an Equal Opportunity Employer; employment with Phaidra is governed on the basis of merit, competence, and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status. We welcome diversity and strive to maintain an inclusive environment for all employees. If you need assistance with completing the application process, please contact us at hiring@phaidra.ai.
E-Verify Notice Phaidra participates in E-Verify, an employment authorization database provided through the U.S. Department of Homeland Security (DHS) and Social Security Administration (SSA). As required by law, we will provide the SSA and, if necessary, the DHS, with information from each new employee's Form I-9 to confirm work authorization for those residing in the United States.
Additional Information About E-Verify Can Be Found Here. To be considered for any position at Phaidra, you must submit an online application. This role will remain open until it is filled.
Phaidra only hires individuals who are legally authorized to work in the specified location(s) above. We do not provide employment sponsorship. Candidates requiring visa sponsorship, either now or in the future, are not eligible for hire.
WE DO NOT ACCEPT APPLICATIONS FROM RECRUITERS.