Everstar

Founding AI Engineer

Everstar
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9 months ago
New York, NY, USAMid Level / Senior

Responsibilities

  • Build production AI agents for Gordian Search, Research, and Compose that produce truthful, complete, and auditable outputs.
  • Design and operate evaluation infrastructure and benchmark suites that identify quality regressions before customers do.
  • Own fine-tuning pipelines, including synthetic data generation, ablation studies, and domain adaptation for nuclear regulatory tasks.
  • Develop frontier capabilities such as AI-accelerated weather simulations, physics-informed safety analyses, world models, vision and physics models, and agentic workflows.
  • Scale and optimize model inference while debugging evaluation failures and improving latency or accuracy.
  • Set technical direction for model selection, prompt design, guardrails, physics-AI integration, and the ML operations stack.
  • Collaborate with NVIDIA and Microsoft researchers on tools and applications for critical infrastructure.
  • Mentor and eventually hire and guide additional AI engineers.
  • Deliver major production model improvements, continuous evaluation infrastructure, and at least one customer-valued frontier capability within the first 90 days.

Requirements

  • 3–8 years of experience building production ML or LLM systems, including RAG, fine-tuning, evaluations, and agent orchestration.
  • Demonstrated experience shipping models that users depend on in production.
  • Strong command of Hugging Face, LangChain, vector databases, prompt engineering, and modern LLM operations.
  • Experience designing benchmark suites, tracking model quality over time, and measuring meaningful evaluation metrics.
  • Evidence of owning outcomes, setting technical direction, mentoring teammates, or leading cross-functional projects.
  • Experience with physics-informed neural networks, scientific computing, or simulation acceleration is a plus.
  • Published ML or AI research and contributions to open-source ML frameworks are valued.
  • Deep familiarity with NVIDIA NeMo, Modulus, and CUDA optimization is a plus.
  • A background in physics, engineering, or computational science is helpful.
  • Nuclear industry experience is not required.

Benefits

  • Top-of-market base salary, meaningful equity, health, dental, vision, FSA, and wellness stipend are offered.
  • The role is fully on-site in New York City, five days per week, in Midtown/Bryant Park.
  • Occasional travel to client sites, Microsoft and NVIDIA offices, or ML conferences is expected.
  • The company provides a large AI research budget, compute allocation, conferences, and access to NVIDIA H100 and GH200 hardware.
  • Employees collaborate with Microsoft and NVIDIA research teams and receive early access to related tools.
Everstar

About Everstar

51-200 employees

Everstar builds AI software for nuclear energy developers and operators to streamline licensing, compliance, and deployment. Its products apply language models and domain-trained reasoning to turn technical and regulatory documentation into actionable intelligence, and extend into sensor integration, computer vision, and robotics-assisted manufacturing. Founded in 2024 and headquartered in New York City, the company is privately held.

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