AI​/ML Engineer; Dallas

About the Role

Apexon is seeking an experienced AI / ML Engineer with strong expertise in LLM development, MLOps, and building scalable GenAI solutions. You will design, build, and operationalize AI / ML systems that support enterprise clients across healthcare, BFSI, retail, and digital transformation engagements.

The ideal candidate has hands‑on experience building end‑to‑end machine learning pipelines, optimizing large language model workflows, and deploying secure ML systems in production environments.

• Build, fine‑tune, evaluate, and optimize Large Language Models (LLMs) for client‑specific use cases such as document intelligence, chatbot automation, code generation, and workflow orchestration.
• Develop RAG (Retrieval‑Augmented Generation) pipelines using enterprise knowledge bases.
• Implement prompt engineering, guardrails, hallucination reduction strategies, and safety frameworks.
• Work with transformer‑based architectures (GPT, LLaMA, Mistral, Falcon, etc.) and develop optimized model variants for low‑latency and cost‑efficient inference.

• Develop scalable ML systems including feature pipelines, training jobs, and batch / real‑time inference services.
• Build and automate training, validation, and monitoring workflows for predictive and GenAI models.
• Perform offline evaluation, A / B testing, performance benchmarking, and business KPI tracking.

• Build and maintain end‑to‑end MLOps pipelines using AWS Sage Maker, Databricks, MLflow, Kubernetes, Docker, Terraform, Airflow.
• Manage CI/CD pipelines for model deployment, versioning, reproducibility, and governance.
• Implement enterprise‑grade model monitoring (data drift, performance, cost, safety).
• Maintain infrastructure for vector stores, embeddings pipelines, feature stores, and inference endpoints.

• Build data pipelines for structured and unstructured data using Snowflake, S3, Kafka, Delta Lake, Spark (PySpark).
• Work on data ingestion, transformation, quality checks, cataloging, and secure storage.
• Ensure all systems adhere to Apexon and client‑specific security, IAM, and compliance standards.

• Partner with product managers, data engineers, cloud architects, and QA teams.
• Translate business requirements into scalable AI / ML solutions.
• Ensure model explainability, governance documentation, and compliance adherence.

• Bachelor or Master degree in Computer Science, Engineering, AI / ML, Data Science, or related field.
• 4+ years of experience in AI / ML engineering, including 1+ years working with LLMs / GenAI.
• Strong experience with Python, Transformers, PyTorch / Tensor Flow and NLP frameworks.
• Hands‑on expertise with MLOps platforms:
  Sage Maker, MLflow, Databricks, Kubernetes, Docker.
• Strong SQL and data engineering experience (Snowflake, S3, Spark, Kafka).

• Experience implementing Generative AI solutions for enterprise clients.
• Expertise in distributed training, quantization, optimization, and GPU acceleration.
• Experience with Vector Databases (Pinecone, Weaviate, FAISS), RAG frameworks (Lang Chain, Llama Index), Monitoring tools (Prometheus, Grafana, Cloud Watch).
• Understanding of model governance, fairness evaluation, and client compliance frameworks.