Data First Jobs

ExaTech Inc

Sr. Data Scientist

Full Time · In Office · Houston, Texas (USA)

Posted Sep 14, 2026

  • Role: Senior Data Scientist – GenAI / RAG
  • Location: Houston, TX (Onsite – 3 Days)

Type: Full-Time

Focus: We need candidates with real hands-on experience in Agentic AI and Traditional Data Science, not candidates who have only recently started exploring GenAI/LLMs. Continuous production implementation experience is preferred.

  • What the Hiring Team is Looking For
  • Traditional Data Scientists who have evolved into GenAI/Agentic AI solutions.
  • Candidates who can discuss end-to-end problem solving, feature engineering, predictive analytics, model selection, and solution design.
  • Hands-on experience designing and implementing RAG, LLM, and Agentic AI solutions.
  • Strong understanding of business use cases and ability to interact with customers and stakeholders.
  • Ability to explain architecture decisions, technical trade-offs, and implementation approaches.
  • Mandatory Skills
  • Strong Data Science background
  • Strong Machine Learning implementation experience
  • Hands-on LLM & RAG architecture and implementation
  • Experience with Agentic AI concepts and workflows
  • Strong client-facing / consulting and stakeholder communication skills
  • Exposure to Deep Learning concepts and implementations
  • Experience with cloud AI platforms such as AWS Bedrock, Azure OpenAI, or Vertex AI

Job Description

  • Strong hands-on experience in Agentic AI and Multi-Agent Systems
  • Experience with LangGraph, LangChain, MCP (Model Context Protocol), tool calling, agent orchestration
  • Strong RAG implementation experience including Vector Databases, Hybrid Retrieval, Reranking, Knowledge Graphs
  • Hands-on experience with AWS Bedrock and enterprise GenAI solutions
  • Strong Python and SQL skills
  • Solid Traditional Data Science / Machine Learning background:
  • Classification
  • Regression
  • Forecasting
  • Anomaly Detection
  • Feature Engineering
  • Model Evaluation
  • Experience with XGBoost, CatBoost, Random Forest, Deep Learning frameworks (PyTorch/TensorFlow)
  • Experience designing and deploying production AI/ML systems
  • Understanding of MLOps / LLMOps, model monitoring, evaluation, observability, and retraining pipelines
  • Ability to translate business problems into ML or Agentic AI solutions
  • Experience with LLM Evaluation, Hallucination Detection, Groundedness and Retrieval Quality metrics
  • Exposure to Databricks, Spark, Vector Databases, APIs, Cloud Platforms (AWS preferred)
  • Key Responsibilities
  • Build and deploy RAG (Retrieval-Augmented Generation) systems & AI chat interfaces
  • Work closely with client data science teams (ML/DL ecosystems)
  • Develop GenAI-based enterprise knowledge solutions
  • Collaborate directly with stakeholders and customers
  • Tech Environment
  • AWS ecosystem
  • Snowflake (data platform)

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Sr. Data Scientist

ExaTech Inc

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