Unknown Company

LLM Training & Model Development Engineer

Remote • Posted 3 days ago
Onsite Full Time Engineering

Overview

Strong Data Engineer with Agentic AI experience, capable of Data Extract, Transformation, Feature Engineering, Analytics to build AI/ML models. Look for USA local candidates.

Responsibilities

  • Strong Data Engineer with Agentic AI experience, capable of Data Extract, Transformation, Feature Engineering, Analytics to build AI/ML models.
  • Curate and preprocess training corpora for domain-specific instruction tuning.
  • Fine-tune open-source LLMs using LoRA, RLHF, DPO, and model distillation techniques.
  • Implement model evaluation pipelines and benchmark reporting.
  • Collaborate with Prompt & Data teams to create repeatable model tuning workflows.
  • Architect and implement data pipelines for large-scale text ingestion, cleaning, and transformation.
  • Perform data extraction, transformation, and feature engineering across structured and unstructured sources.
  • Develop and maintain data quality frameworks ensuring clean, diverse, and bias-mitigated datasets for model training.
  • Automate data labeling and annotation workflows using LLM-assisted or agentic tools.
  • Build domain-specific corpora for instruction tuning, conversational grounding, and retrieval-augmented training.
  • Fine-tune and adapt open-source LLMs (e.g., LLaMA, Mistral, Falcon, Gemma) using LoRA, QLoRA, RLHF, DPO, and model distillation.
  • Implement self-instruct and multi-turn conversational fine-tuning for agentic use cases.
  • Design training orchestration scripts for distributed GPU/TPU environments (PyTorch, DeepSpeed, HuggingFace Accelerate).
  • Develop evaluation frameworks for automatic and human-in-the-loop assessment of LLM performance.
  • Benchmark models against standard datasets (MMLU, HELM, ARC, TruthfulQA) and custom internal benchmarks.
  • Generate detailed performance dashboards tracking precision, hallucination rate, factual consistency, and latency.
  • Conduct A/B testing and regression analysis on model updates to ensure stable improvement.

Collaboration & AI Workflow Automation

  • Work cross-functionally with Prompt Engineers, Data Scientists, and DevOps to operationalize model development.
  • Build repeatable pipelines for fine-tuning, version control, and continuous model improvement (MLOps).
  • Integrate agentic feedback loops for continuous self-improvement and autonomous retraining cycles.
  • Support deployment through containerized model serving (FastAPI, Triton, or Ray Serve).

Data & Model Architecture

  • Architect and implement data pipelines for large-scale text ingestion, cleaning, and transformation.
  • Perform data extraction, transformation, and feature engineering across structured and unstructured sources.
  • Develop data quality frameworks ensuring clean, diverse, and bias-mitigated datasets for model training.

Model Training & Evaluation

  • Model Training & Fine-Tuning: Fine-tune and adapt open-source LLMs (e.g., LLaMA, Mistral, Falcon, Gemma) using LoRA, QLoRA, RLHF, DPO, and model distillation; implement self-instruct and multi-turn conversational fine-tuning for agentic use cases.
  • Model Evaluation & Benchmarking: Develop evaluation frameworks for automatic and human-in-the-loop assessment of LLM performance; benchmark models against standard datasets and internal benchmarks; generate performance dashboards; conduct A/B testing and regression analysis.

Required Skills & Experience

  • Strong Python expertise with hands-on experience in PyTorch, Hugging Face Transformers, and LangChain.
  • Deep understanding of LLM architectures, tokenizer mechanics, and parameter-efficient fine-tuning.
  • Proficiency in data processing frameworks (Spark, Airflow, Pandas, Arrow, Dask).
  • Experience with distributed training and GPU/TPU optimization (CUDA, NCCL).
  • Knowledge of evaluation metrics and human-aligned reward modeling.
  • Experience with Vector Databases (FAISS, Milvus, Pinecone) for context retrieval.
  • Familiarity with cloud platforms (AWS, GCP, Azure) and container orchestration (Docker, Kubernetes).
  • Exposure to agentic AI frameworks and feedback-based continuous improvement systems is a plus.

Preferred Qualifications

  • Prior experience contributing to open-source LLM projects.
  • Background in NLP research or applied ML.
  • Knowledge of data privacy, ethical AI, and prompt alignment techniques.
  • Master’s or Ph.D. in Computer Science, AI, or related field preferred.

What You’ll Get to Build

  • A home-grown, domain-specialized LLM trained on proprietary and public datasets.
  • A scalable fine-tuning pipeline that powers multiple downstream agents and AI applications.
  • An autonomous model training framework capable of learning from feedback in real time.

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