Applied AI Engineer at Soulside AI | CA, US | Rezi

Applied AI Engineer at Soulside AI

Applied AI Engineer

Soulside AI · CA, US

6 days ago

Applied AI Engineer

Soulside AI · CA, US

7 days ago
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About the Role

We're looking for an Applied AI Engineer to own the model layer that makes Soulside's documentation trustworthy. Your job is to build the post-training pipelines and evaluation systems that get our models clinically sound, defensible for medical necessity, and safe, and keep them there as we scale. This is a hands-on role for someone who lives at the intersection of applied ML and product.

Responsibilities

  • Build post-training pipelines on open-source models—supervised fine-tuning, preference optimization (DPO/RLHF), LoRA/adapters, and distillation—for domain-specific clinical tasks.
  • Fine-tune, deploy, and serve models across managed inference and fine-tuning platforms such as Fireworks AI, Baseten, and Together AI, and make pragmatic build-vs-buy calls on where each workload should run.
  • Design and maintain rigorous evaluation sets for high-stakes tasks like clinical reasoning and AI note generation—defining metrics, curating gold-standard data, and building automated and human-in-the-loop eval harnesses.
  • Turn eval results into a fast, trustworthy iteration loop: catch regressions before they ship, and quantify the impact of every model or prompt change.
  • Optimize the full LLM pipeline—prompting, retrieval, structured output validation, latency, and cost.
  • Partner with clinical experts to translate documentation and compliance requirements into model behavior and evaluation criteria.
  • Monitor models in production for quality, drift, and failure modes, and close the loop back into training data and evals.

Requirements

  • 3+ years in applied ML / AI engineering, or a Master's degree in a related field, with hands-on experience taking LLM-based systems into production.
  • Practical experience with post-training / fine-tuning open-source models (e.g., Llama, Qwen, Mistral) using SFT, LoRA/PEFT, or preference-based methods.
  • Experience serving or fine-tuning models on managed platforms such as Fireworks AI, Baseten, or Together AI (or comparable inference/training infra).
  • Demonstrated ability to build evaluation frameworks for LLM tasks—you think in terms of measurable quality, not vibes.
  • Strong Python and familiarity with the modern ML tooling ecosystem (PyTorch, Hugging Face, etc.).
  • Solid grounding in prompt engineering and structured-output validation.
  • Ability to thrive in a fast-paced, remote startup and communicate clearly with technical and clinical teammates.
  • Experience with healthcare, clinical NLP, or other high-stakes / regulated domains.
  • Familiarity with HIPAA and handling sensitive clinical data.
  • RAG systems, retrieval quality tuning, or long-context document workflows.
  • Experience with LLM observability, monitoring, and drift detection in production.
  • Data pipeline and labeling workflow experience for curating high-quality training and eval sets.
  • Open-source contributions in the ML/LLM ecosystem.

Skills

  • Applied ML
  • AI Engineering
  • LLM
  • Post-training pipelines
  • Evaluation systems
  • Supervised fine-tuning
  • Preference optimization
  • DPO/RLHF
  • LoRA/adapters
  • Distillation
  • Model serving
  • Fireworks AI
  • Baseten
  • Together AI
  • Prompt engineering
  • Structured output validation
  • Python
  • PyTorch
  • Hugging Face
  • Clinical NLP
  • HIPAA
  • RAG systems
  • LLM observability
  • Monitoring
  • Drift detection
  • Data pipeline
  • Labeling workflows

Location

  • US On-Site

Work Type

  • On-Site
  • Remote

Experience Level

  • 3+ years

Education Level

  • Master's degree

Benefits

  • Competitive salary with a meaningful equity component
  • Comprehensive health, dental, and vision insurance
  • Flexible, remote-first culture
  • Direct access to founders and influence on technical direction
  • Professional development budget and conference attendance

About the Company

  • Soulside AI is the specialist AI platform for behavioral health documentation and compliance.
  • We generate audit-ready clinical documentation across individual and group sessions, virtual and in-person care, admissions, and treatment planning—and we embed real-time chart audits and payer-aligned compliance checks into everyday workflows.
  • The result is immediate and measurable: higher-quality charts, stronger medical necessity, and hours given back to clinicians every week.
  • We're backed by Counterpart Ventures, GreyMatter Capital, and One Mind, and we're a UCSF Rosenman Institute and One Mind Accelerator company.
  • We've reached strong product-market fit and are scaling fast.