What Does an MLOps Engineer Do?

A clear explanation of the MLOps engineer role, including daily responsibilities, required skills, and how it fits into an AI team.

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MLOps engineers are the production backbone of any AI team. While data scientists and ML engineers build models, MLOps engineers make sure those models actually run reliably in production. If you're building an AI team and wondering whether you need an MLOps hire, this article breaks down exactly what they do and why they matter.

The MLOps Engineer's Core Responsibilities

An MLOps engineer bridges the gap between model development and production deployment. Their daily work includes: building and maintaining ML pipelines that automate the journey from raw data to deployed model, managing model versioning, experiment tracking, and reproducibility, setting up infrastructure for model training (GPU clusters, distributed training), deploying models to production with proper monitoring, scaling, and rollback capabilities, and implementing data quality checks and model performance monitoring.

MLOps vs. DevOps vs. Data Engineering

MLOps borrows from DevOps but adds ML-specific concerns. A DevOps engineer builds CI/CD for software — an MLOps engineer builds CI/CD for models, which involves tracking data versions, model artifacts, and training configurations alongside code. MLOps also overlaps with data engineering in managing data pipelines, but focuses specifically on the pipelines that feed ML training and inference.

The MLOps Stack

A typical MLOps engineer works with: experiment tracking (MLflow, Weights & Biases, Neptune), pipeline orchestration (Airflow, Kubeflow, Prefect), model serving (Triton, BentoML, Ray Serve, SageMaker endpoints), monitoring (Evidently, Arize, WhyLabs), infrastructure (Kubernetes, Terraform, Docker), and cloud platforms (AWS, GCP, Azure).

When to Hire an MLOps Engineer

You need an MLOps engineer when: you have ML models that need to run in production reliably, your data scientists are spending more time on infrastructure than on modeling, model deployments are manual, slow, or error-prone, you need to scale from one model to many, or you're experiencing issues with model drift, data quality, or serving reliability.

Most companies need their first MLOps hire when they move from ML experimentation to their first production deployment.

What a Good MLOps Engineer Looks Like

The best MLOps engineers are pragmatic problem solvers. They automate aggressively, document thoroughly, and think about failure modes proactively. They have strong software engineering fundamentals (not just scripting skills), understand distributed systems, and can communicate effectively with both data scientists and platform engineers.

Hiring MLOps Engineers from Latin America

LatAm has a growing pool of MLOps engineers, many transitioning from strong DevOps or data engineering backgrounds. At $4,500-$8,000/month versus $140K-$220K in the US, the economics are compelling. South pre-vets MLOps candidates for production experience, cloud platform proficiency, and the communication skills needed for effective remote collaboration.

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