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An MLOps engineer turns machine-learning experiments into repeatable, monitored services. They build data and training pipelines, package models, deploy them to cloud or edge environments, track versions, monitor performance and create rollback procedures. In smaller teams they may also write application code; in larger ones they run a shared platform for many data-science teams.

Data scientists commonly focus on problem framing, data analysis and model development. MLOps focuses on making models reproducible, deployable and observable over time. The distinction is not absolute: strong teams collaborate on evaluation and data quality, while MLOps engineers need enough ML knowledge to understand how a model can fail after deployment.

No. A computer-science, engineering or data-focused degree is common, but practical software, cloud and data-platform experience can matter more than an advanced research credential. Roles that build novel models may prefer graduate study; roles operating ML platforms usually value production engineering, infrastructure and careful experimentation just as highly.

Python is common because most ML ecosystems use it. SQL is essential for data work, while Docker, YAML and infrastructure-as-code configurations are everyday tools. Some platform teams also use Go, Java, Scala or TypeScript. The important capability is not loyalty to one language but making a pipeline testable, versioned and observable.

Model drift describes a deployed model becoming less useful because the world, user behavior, inputs or outcomes change. A fraud model trained on last year's patterns may miss a new scam. Monitoring input distributions, prediction quality and business outcomes helps teams discover drift before an unnoticed decline becomes a harmful decision.

MLOps borrows DevOps ideas—automation, version control, continuous delivery and shared ownership—but adds data and model concerns. A model can change because training data changes even when application code does not. Teams must version datasets, evaluate model behavior, manage experiments and monitor prediction quality as well as server health.