Stealth Startup logo

Artificial Intelligence Engineer

Stealth Startup

We are looking for an Applied AI Engineer to help design, train, and deploy production-grade AI models powering next-generation AI agents in financial workflows. This role focuses on fine-tuning, post-training optimization, and building reliable model pipelines using both open-source and proprietary data.

You will work closely with product, engineering, and domain experts to translate business problems into scalable AI systems.

Key Responsibilities

Model Development & Training

  • Fine-tune large language models and multimodal models for domain-specific use cases
  • Design post-training pipelines (instruction tuning, RLHF, evaluation loops, etc.)
  • Implement and optimize training workflows using open-source frameworks
  • Experiment with model architecture improvements and hyperparameter optimization

AI Agent & System Integration

  • Build and improve AI agents capable of executing multi-step workflows
  • Integrate models into production environments and product features
  • Improve model reliability, accuracy, and robustness for high-stakes applications
  • Develop evaluation and testing frameworks for model performance and edge cases

Data & Experimentation

  • Work with proprietary domain datasets to improve model specialization
  • Design training datasets, labeling pipelines, and data quality frameworks
  • Conduct ablation studies and performance benchmarking

Cross-Functional Collaboration

  • Partner with product teams to design AI-first product experiences
  • Provide technical feasibility insights for roadmap and feature planning
  • Collaborate with global engineering teams on implementation and scaling

Required Qualifications

  • 1–4 years of hands-on experience training or fine-tuning ML/AI models
  • Experience working with LLM or multimodal model training pipelines
  • Strong Python skills and familiarity with deep learning frameworks such as:
  • PyTorch
  • Hugging Face ecosystem
  • Open-source training frameworks
  • Experience deploying ML models into production systems
  • Understanding of evaluation methodologies and model performance tradeoffs

Preferred Qualifications

  • Experience with post-training techniques such as:
  • Instruction tuning
  • RLHF / preference optimization
  • Model distillation
  • Experience building AI agent or workflow automation systems
  • Familiarity with distributed training and GPU optimization
  • Experience working with domain-specific data (finance, compliance, enterprise workflows, etc.)
  • Background working in early-stage startups or research labs

Nice to Have (Bonus Skills)

  • Exposure to pre-training or large-scale model training environments
  • Experience with retrieval-augmented generation (RAG)
  • Experience designing evaluation benchmarks for enterprise AI applications
  • Experience working with multi-agent systems or tool-use models

Requirements added by the job poster

  • 1+ years of work experience with IT Integration
  • 1+ years of work experience with Python (Programming Language)
  • 1+ years of work experience with Benchmarking

Job Type

Job Type
Full Time
Location
Menlo Park, CA

Share this job: