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Hollstadt Consulting
Hollstadt Consulting

Senior Consultant, AI/ML Engineer

Location

Remote restrictions apply
See all remote locations

Salary Estimate

N/AIconOpenNewWindows

Seniority

Senior

Tech stacks

AI
Project management
Data
+25

Contract role
a day ago
Apply now

Role: Senior Consultant, AI/ML Engineer

Location: Remote

Duration: 9/1/2026-2/1/2027

Rate: $79-$88/hour W2

Description of work / project:

The AI CoE builds AI products and the shared platform that powers them. We're looking for a Senior ML / AI Engineer who is equally comfortable building models and building the platform around them: someone

who can train and evaluate an ML model, ship a production LLM/GenAI application, and extend shared AI infrastructure and tooling that the wider team depends on.

This is a senior builder role at the intersection of applied data science, GenAI application engineering, and AI platform engineering. Our work spans predictive modeling, LLM-based systems, and the platform underneath them; you'll take problems from data and prototype through to governed, monitored production services, and set the technical patterns other engineers build on. Projects vary over time — we value engineers who can move across the stack rather than stay in one lane

Performance expectations:

  • Build ML models — frame problems, engineer features, train and evaluate models (ranking, scoring, survival/time-to-event, classification, forecasting), and reason rigorously about metrics (AUC, C-index, calibration), validation strategy, subgroup performance, and failure modes.
  • Integrate models into decision systems — combine model output with business/domain rules and LLM reasoning to produce explainable, trustworthy recommendations.
  • Ship GenAI applications — design and deploy LLM-powered features: RAG pipelines, agents, structured extraction, summarization, decision-reasoning trails, and evaluation harnesses using Claude/Bedrock and other models.
  • Engineer the AI platform — extend the shared AI gateway (unified multi-model access, API keys, per-team budgets, failover, observability) and reusable libraries/SDKs that other teams build on.
  • Own the RAG/data layer — embeddings, vector stores, retrieval quality, chunking, and grounding strategies; measure and improve retrieval and answer quality.
  • Build evaluation & quality tooling — offline/online eval, LLM-as-judge, regression suites, statistical validation, and guardrails so model and prompt changes ship safely.
  • Productionize — wrap models and pipelines as tested, observable services (Python, containers, AWS Lambda/SageMaker/EKS), with monitoring for quality, cost, latency, and drift.
  • Lead technically — set patterns and standards, review designs and code, mentor engineers, and partner with data scientists, MLOps, clinical/domain experts, and product owners to move prototypes to production.

Required Qualifications

  • 5+ years building and shipping ML / AI systems in production (not just notebooks/POCs), including technical leadership of non-trivial projects.
  • Strong data science / ML fundamentals — feature engineering, model training and evaluation, metrics (AUC, C-index, calibration, precision/recall), gradient-boosted trees (XGBoost), and sound experimental methodology (validation strategy, subgroup analysis).
  • Experience building ranking, scoring, or survival/time-to-event models, and integrating model output into a larger decision system.
  • Hands-on GenAI / LLM engineering — RAG, prompt engineering, function/tool calling, embeddings and vector search, and LLM evaluation.
  • Excellent Python — production-grade, tested, well-structured code; comfortable building APIs/services and shared libraries.
  • AWS experience — Bedrock and/or SageMaker, Lambda, S3, plus containers (Docker) and Git-based workflows.
  • Solid software engineering practice: version control, testing, code review, CI/CD; ability to reason about cost, latency, and reliability of AI systems in production.

Preferred Qualifications

  • AI platform engineering — building shared gateways/proxies, model routing, multi-tenancy, quota/budget enforcement, or internal AI SDKs.
  • Experience with agent frameworks, real-time/voice AI, or streaming inference.
  • Vector databases (Qdrant, OpenSearch, pgvector) and retrieval-quality tuning at scale.
  • IaC (Terraform), observability (OpenTelemetry/CloudWatch), and FinOps for AI workloads.
  • Healthcare / clinical ML — survival analysis, outcome prediction, or working with clinical/scientific datasets alongside domain experts.
  • Serving models as endpoints (SageMaker), cross-account inference, and train/serve parity.
  • Experience in a regulated / PHI-handling environment (HIPAA) — data governance, PII handling, auditability.

About Hollstadt Consulting

👥201-500
📍Burnsville
🔗Website
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