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Glossary · AI & Machine Learning Roles

What Is A Machine Learning Engineer?

A machine learning engineer develops algorithms that let systems learn from data and improve over time without explicit programming. The role turns models into production software, covering data pipelines, model training, deployment, and monitoring for drift, latency, and failures.

Also called
ML Engineer
Reports to
Head of AI / Engineering Manager
Works on
Models, data pipelines, deployment
Measured on
Model accuracy, latency

What A Machine Learning Engineer Actually Does

  1. 01 · Model TrainingDesigns, trains, and iterates on models, balancing accuracy, latency, and cost
  2. 02 · Data PipelinesBuilds data pipelines and feature stores, and keeps training and inference data consistent
  3. 03 · DeploymentDeploys models into production software and APIs so real users can rely on them
  4. 04 · MonitoringMonitors drift, latency, and failures, and retrains models as usage changes
  5. 05 · CollaborationWorks with data scientists, product, and engineering to turn prototypes into shipped features

Machine Learning Engineer Vs. Similar Roles

RoleMain focusPrimary metric
Machine Learning EngineerDesigning, training, and deploying models in productionModel accuracy, latency
Data ScientistBuilding predictive models and running statistical experimentsModel accuracy, business impact
AI EngineerShipping ML and LLM-powered features into production for real usersEval scores, feature reliability
MLOps EngineerRunning models in production through pipelines, infrastructure, and monitoringPipeline uptime, model reliability

At smaller companies, one machine learning engineer often covers both modeling and deployment. Add a dedicated MLOps engineer once several models are running in production.

Skills To Screen For

Python with TensorFlow or PyTorch, plus scikit-learn MLOps tooling such as MLflow, Kubeflow, Airflow, and Docker Production deployment on a cloud platform such as AWS SageMaker, not just notebooks Business-level English and clear communication with product and data teams

Interview Questions Worth Asking

1"Walk me through a model you took from prototype to production. What broke along the way?"
2"How do you detect model drift, and what do you do when you find it?"
3"How do you decide between improving a model and simplifying it to hit a latency or cost target?"

Hiring A Machine Learning Engineer In Latin America

Ready to add one to your team? Hire a machine learning engineer from Latin America through LatamCent, with 3 to 5 vetted profiles in the first 10 days.

How Much Of The Workday You’d Share

Your team’s time zone
Clock
Your team, 9am to 5pm Their workday, 9am to 6pm local Shared hours
Colombia
Mexico
Brazil
Argentina

Bogota, Mexico City, Sao Paulo, and Buenos Aires don’t change their clocks, so the overlap shifts when yours does. Times shown are in your team’s time zone. National English-proficiency averages vary by market too: Argentina ranks in EF’s "High" band globally, while Colombia, Mexico, and Brazil sit in the "Low" band. Screen every candidate’s spoken English directly rather than assuming by country.

Common mistake: hiring a data scientist or notebook-only researcher and expecting production machine learning. The role is closer to software engineering than analysis. Ask about models they deployed and monitored, not just accuracy on a test set.

What It Costs

US average $128.8K/yr $101.5K-$155K typical range
LatAm average $96.8K/yr Senior average, four countries
Typical savings ~25% About $32K/yr per hire
CountryEntry level (1-3 yrs)Senior (6+ yrs)
Colombia$41K/yr$91K/yr
Mexico$46K/yr$91K/yr
Brazil$50K/yr$94K/yr
Argentina$50K/yr$111K/yr

Per-country figures are estimates for remote machine learning engineer roles with US companies. The LatAm average above is the mean of the four senior figures, so the savings gap is narrower than on most roles.

21 days

Typical time from kickoff to signed offer. LatamCent delivers 3 to 5 candidate profiles in the first 10 days.

Frequently Asked Questions

A machine learning engineer develops algorithms that let systems learn from data and improve over time without explicit programming. The role turns models into production software, covering data pipelines, model training, deployment, and monitoring for drift, latency, and failures.

A data scientist analyzes data to find insights, builds predictive models, and explains results to stakeholders. A machine learning engineer focuses on software engineering and system design, turning models into production systems that run reliably. At smaller companies, one hire often covers both.

US machine learning engineers average around $128,800 a year. Senior machine learning engineers in Latin America average around $96,800 a year, about 25% less, saving roughly $32,000 a year per hire.

Most searches run 21 days from kickoff to a signed offer, with 3 to 5 candidate profiles delivered in the first 10 days.

A machine learning engineer designs, builds, and tunes models and integrates them into software. An MLOps engineer focuses on running models in production through CI/CD pipelines, infrastructure, and monitoring. Smaller teams usually combine the two roles.

Need A Machine Learning Engineer On Your Team?

Pre-vetted, fluent-English machine learning engineers from Latin America, interviewing in 21 days.

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