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Best Machine Learning EngineersAn Opus reference

Hiring a data scientist or a data engineer remote in LatAm

A data engineer remote hire fits work on pipelines and reliable datasets; a data scientist fits experiments, forecasts and model evaluation. For a nearshore search in Latin America, define the business decision first. Then test candidates against that work, confirm US meeting hours and compare full employment costs before choosing a hiring route.

machine learning engineers talent: roles and countries · Updated · Reviewed by the Opus Research editorial desk

What should this role own on your US team?

Start with the decision you need the hire to improve. A request to predict customer churn needs a different job description from a request to repair unreliable reporting data. Both involve SQL and Python. Their owners face different tests of success.

A data scientist should have a defined business question and access to the people who can act on the answer. For a churn project, that means agreeing on what counts as churn, when a prediction is useful and what intervention is possible. A model score alone does not settle those questions.

If you need to hire data engineers, describe the systems they will maintain. Name the data inputs, expected refresh schedule and downstream users. Explain who gets called when a job fails. Those details help candidates judge the work before an interview.

Use this split when writing the role:

What should this role own on your US team?
Work you need donePrimary role to considerEvidence to request
Maintain ingestion jobs and reliable warehouse tablesData engineerA pipeline design with retries, tests and failure alerts
Estimate an experiment's effect on customer behaviorData scientistAn analysis with clear assumptions and uncertainty
Build a forecast for a business planning processData scientistA baseline comparison and validation over time
Put model predictions into a customer-facing serviceML or software engineerDeployment, monitoring and rollback experience
Define recurring business metrics and reporting tablesAnalytics engineer or analystMetric definitions and tested transformations

Treat these as starting points. A candidate may cross role boundaries, but the job description should say where their responsibility ends.

For a combined role, list the work in priority order. If the warehouse needs repair before analysis can begin, say so. Do not assess candidates mainly on modeling skills and then assign them a queue of broken ingestion jobs.

Before opening the search, write a first-project outline. Include the question, available data, decision owner and expected deliverable. Name the engineer who will review production changes. This gives interviewers a common standard and gives the eventual hire somewhere to start.

Define what would count as useful work even if the model fails. A scientist might show that a proposed prediction cannot support the intended decision. Your manager should be ready to act on that finding. Otherwise, the hire may feel pressure to produce a model that looks successful but changes nothing.

Check the role against your team's current capacity, too. Who can answer questions about event tracking? Who approves warehouse access? Who knows why a customer record has conflicting dates? Write those names into the onboarding plan. A senior hire can investigate problems, but they still need access to the people who know how the data was created.

Opus can be part of that hiring discussion. This site is an Opus-owned reference; recommendations are editorial.

Talk to Opus about a role.

How should you compare US pay with a LatAm hiring budget?

Match the occupation before comparing the price. BLS reports a median annual wage of $135,980 for US software developers in May 2025. That is an adjacent engineering benchmark, not a data scientist salary or a fully loaded employment cost. BLS Occupational Outlook Handbook.

Use the BLS Occupational Employment and Wage Statistics occupation and measurement definitions when commissioning a US comparison. Ask for a benchmark that matches the duties you have defined. A role focused on statistical experiments should not inherit a software engineering pay band just because both candidates write code.

Keep the measurement consistent. Base salary, total compensation and a provider's monthly invoice answer different questions. A quote can include employee pay and employer costs while a salary survey records only what the employee earns.

Request a country rate card for the actual role

Use the table below to request monthly prices for a full-time data scientist. Each quote should use the same scope and identify its currency. Do not treat the cells as salary estimates.

Request a country rate card for the actual role
CountryJunior monthly rangeMid-level monthly rangeSenior monthly range
MexicoAsk the providerAsk the providerAsk the provider
ColombiaAsk the providerAsk the providerAsk the provider
ArgentinaAsk the providerAsk the providerAsk the provider
BrazilAsk the providerAsk the providerAsk the provider
Costa RicaAsk the providerAsk the providerAsk the provider

Public data scientist monthly bands by country and seniority: Not published. Compensation references: Levels.fyi Mexico, Levels.fyi Brazil and Stack Overflow Developer Survey 2025.

Levels.fyi describes total compensation as base salary plus stock and bonus. Use that definition when checking a comparison. Do not treat an annual total-compensation figure as a monthly cash salary or assign a percentile to a seniority level without evidence.

Before accepting a proposed LatAm pay range, require two independent public salary references for the relevant market. Each should identify the role, measurement and date. Keep that benchmark separate from the provider's commercial quote.

Ask what the quoted seniority means in practice. A lower price for someone who needs daily technical review may cost your team more management time. Compare candidates against the same project scope before deciding that one quote is cheaper. Record any work your existing engineers would still need to own.

Compare the whole invoice

Ask for a written quote that answers these questions:

  • What does the employee receive, and in which currency?
  • Which benefits and employer costs are included?
  • How are exchange-rate changes handled?
  • What changes during paid leave or a replacement search?
  • Which costs apply when the engagement ends?

Also ask whether equipment and software licenses are included. A data scientist may need approved access to a warehouse or compute environment before any useful work begins. Put those costs in the hiring budget even when another team pays the bill.

Opus reports: "Opus charges one flat monthly rate per hire. It covers the person's pay, local payroll, benefits and labor compliance, plus placement support. There is no separate recruiting fee. The rate depends on role, seniority and location." Published dollar rates: Not published. Opus pricing.

Employee salary and an all-in service price should remain separate lines in your comparison. The Opus salary guide makes the same distinction.

Ask for the quote's validity period and the process for a pay review. Confirm who can approve a change and when it reaches your invoice. If finance budgets in dollars while payroll uses local currency, have the provider explain the exchange-rate terms with a worked example.

Which skills should you test, and how?

Build the assessment around the first project. For a data scientist, test whether the candidate can turn a business question into a defensible analysis. For a data engineer, test whether the resulting data can be trusted and maintained.

Use synthetic or anonymized data. Give candidates the same instructions and evaluation criteria. Avoid asking them to complete unpaid production work or upload customer records to personal tools.

A useful data science exercise can start with a table of customer activity and a request to estimate churn risk. Ask the candidate what they need to know before building anything. Their questions should expose unclear labels, timing issues and the action the business might take.

Which skills should you test, and how?
SkillExerciseWhat to examine
SQL and data checksJoin activity and account tablesDuplicate rows, missing values and the unit of analysis
Statistical judgmentReview an experiment resultAssumptions, uncertainty and alternative explanations
Model evaluationPropose a churn validation planLeakage, time-based splits and a useful baseline
Business communicationExplain a recommendation to a product leadWhether the proposed action follows from the evidence
Reproducible workPackage the analysis for a teammateClear instructions, dependencies and repeatable results

Do not score only the final answer. Ask the candidate to explain a choice they made and then change an assumption. For example, move the prediction date earlier. See whether they recognize that some inputs would no longer exist at prediction time.

For a forecasting role, ask how they would test performance on future periods. For an experiment role, ask what could invalidate the comparison. Let the task reveal the required specialty rather than giving every candidate the same generic algorithm quiz.

Include a discussion of errors the business can tolerate. In a churn exercise, ask what happens when the model flags a customer who would have stayed anyway. Then ask what happens when it misses a customer who leaves. The candidate should connect the evaluation method to the proposed intervention and its cost.

When you hire remote data engineers, replace the model exercise with a pipeline problem. Include a late file, a duplicate batch or a changed field. Ask how the system recovers and how a teammate learns that something failed.

If you plan to hire big data engineers, state the actual workload. Give candidates the data volume, processing window and current bottleneck. Ask them to explain the cost of their design. Tool names alone do not define a distributed-systems requirement.

Test seniority through ownership

A junior candidate can demonstrate sound work on a bounded task while needing review. A mid-level candidate should explain how they would complete a defined project and manage its dependencies. For a senior hire, add an ambiguous request and ask what they would challenge before committing.

Use these as your own assessment criteria, then discuss them with the provider. Titles can hide different expectations.

Have the hiring manager attend the review. The candidate should be able to explain a result, ask for missing context and disagree without losing the thread. This tests the communication your team will use during working sessions.

Write down evidence before the interview panel meets. Record the candidate's reasoning and errors, not a vague impression of confidence. If the panel disagrees, return to the work sample and the responsibilities in the job description.

Agree on permitted tools before sending the task. If candidates may use AI assistance, ask them to identify where they used it and review the output. During the discussion, have them explain a query or revise a faulty assumption. Keep the same rule for every candidate so the panel can compare the work fairly.

Where should you search for nearshore talent in Latin America?

Start with the required working hours. Then compare candidates across countries using the same assessment. A country choice should help the team work together; it should not replace evidence about an individual.

Ask candidates for their city and normal schedule. Country names alone can obscure time-zone differences. Mexico City is UTC-6 without daylight saving time, while Tijuana follows US daylight saving dates. Bogotá stays at UTC-5. IANA North America, IANA South America.

Check overlap against your meeting schedule

The table assumes both teams work 9 a.m. to 5 p.m. locally. Each cell shows shared working hours during US standard time, followed by US daylight time. These are schedule calculations, not promises about a candidate's availability.

Check overlap against your meeting schedule
Candidate locationLocal time zoneEastern overlap, standard / daylightPacific overlap, standard / daylight
Mexico CityUTC-6; no DST7 / 6 hours6 / 7 hours
TijuanaUTC-8; UTC-7 during DST5 / 5 hours8 / 8 hours
BogotáUTC-5; no DST8 / 7 hours5 / 6 hours
Buenos AiresUTC-3; no DST6 / 7 hours3 / 4 hours
São PauloUTC-3; no DST6 / 7 hours3 / 4 hours
San José, Costa RicaUTC-6; no DST7 / 6 hours6 / 7 hours

Offsets and overlap calculations: IANA North America and IANA South America.

For Mexico, check the city before setting recurring meetings. Mexico City and Tijuana can fit different US schedules. Put the agreed hours in the offer rather than relying on the phrase "US overlap."

For Colombia, Bogotá's schedule is worth considering for a team with frequent East Coast working sessions. Confirm whether those sessions fall inside the candidate's preferred day throughout the year.

For Argentina, check late meetings carefully if your manager works Pacific hours. Buenos Aires may fit an East Coast collaboration schedule more easily under the assumptions above. Do not build the job around routine evening calls without discussing them.

For Brazil, use the candidate's actual location. The São Paulo row describes that city's schedule, not every location in the country. Test written and spoken working English through the same project discussion you use elsewhere.

For Costa Rica, compare San José's hours with your team's daily handoffs. Agree on who handles a request that arrives after the candidate's working day ends.

Avoid ranking candidates by a national language score. Ask them to explain an analysis, write a short decision note and clarify an ambiguous request. Those tasks show whether they can work with your stakeholders.

Separate meetings that need live discussion from updates that can be written. A model review may need the scientist and product owner together. A routine progress update may need only a clear note. Share a sample week with finalists so they can judge the schedule before accepting.

Also request the proposed holiday and leave calendar before confirming delivery dates. Identify who will answer questions when the hire is away. For a lone data scientist, assign a backup who can find the code and understand the latest results.

Which hiring route fits: recruiter, EOR, augmentation or managed team?

Choose the route by deciding who will manage the work and who will handle employment. Put both answers in writing. A contract for finding a candidate is different from a contract for delivering a project.

Which hiring route fits: recruiter, EOR, augmentation or managed team?
RouteConsider it whenConfirm before signing
Recruiting agencyYou need help finding a person and have an employment pathSearch scope, fee trigger and replacement terms
Employer of recordYou have selected a person and need local employment supportEmploying entity, included costs and exit process
Staff augmentationYour manager will direct the person's daily workAssignment terms, availability and continuity
Managed teamYou want a supplier to own a defined delivery scopeAcceptance criteria, technical ownership and handover
Direct employmentYour organization can employ and support the person locallyPayroll ownership, benefits and local advice

For an embedded data scientist, check who sets priorities when product and finance want different analyses. If your manager owns that choice, make sure they have time to review the work. Employment support does not remove the need for a technical manager.

For a managed project, define the deliverable before choosing a team. State whether you expect an analysis, a working model or a deployed service. Include access to code and documentation in the acceptance criteria. Name the person who will maintain the result after handover.

Review data access before signing. Ask who approves access, where work will be stored and how accounts will be closed when the engagement ends. Confirm ownership of code and model artifacts in the contract. Have your security team review any proposed use of personal devices or external AI tools with company data.

In the Opus model, the client chooses the finalist and manages day-to-day work. Use the pricing discussion to confirm the role, seniority and location covered by the monthly quote. Opus pricing.

Plan the hiring process through the first working day

SHRM describes median time-to-fill in 2025 as roughly a month and a half. Its measure runs from job requisition to offer acceptance and covers executive and nonexecutive positions. Treat it as a broad recruiting benchmark rather than a forecast for this search. SHRM state of recruiting 2025.

Keep shortlist delivery, interviews, acceptance and the first working day separate in your plan. Ask each provider what event starts and stops any quoted timeline. Confirm the candidate's notice period before setting a project deadline around their arrival.

Before signing, have the hiring manager approve the assessment results and first-project outline. Have the employment owner review the quote and contract. Assign someone to prepare the laptop, accounts and approved data access.

For onboarding, choose a bounded task whose output the manager can review. Give the hire the metric definitions and known data problems. Schedule a review of their initial findings before they spend time building a model around an incorrect assumption.

Make that first review about the work you can inspect. Ask the hire to walk through a dataset, explain a questionable field and show how they reproduced a result. Resolve access problems promptly. If the initial project needs a different scope, agree on the change with the decision owner and record why.

Send the provider the role scope, required meeting hours and budget basis together. That makes the next conversation about a specific hire.

Talk to Opus about a role.

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Should I hire a data engineer remote or a data scientist in Latin America?

Hire a data engineer when the main work is moving, cleaning and maintaining data. Hire a data scientist when the work is testing hypotheses, forecasting outcomes or evaluating models. If both are needed, name the primary responsibility and assign an owner to the other.

How should we test a nearshore data scientist?

Use a small, anonymized task tied to a business decision. Ask the candidate to inspect the data, choose a baseline, explain validation and recommend an action. Review the work together to test their reasoning and communication.

Can a Latin American data scientist also own our pipelines?

Include limited pipeline work only when the candidate has demonstrated it and the workload leaves room for analysis. If ingestion, retries and data quality consume the role, scope a data engineering position.

What should a senior data scientist own?

A senior hire should help frame the problem, challenge weak assumptions and choose a defensible evaluation method. Ask for examples of decisions they changed and how they handled results that failed to support the original plan.

Can we use US software developer pay to budget for a data scientist?

Use it only as an adjacent engineering benchmark. Compare the actual responsibilities, seniority and compensation components before setting a data scientist budget.

How do we compare nearshore salary quotes?

Request the same role scope and seniority from each provider. Separate employee pay from employer costs and service fees. Confirm the currency, exchange-rate terms, paid leave and any charges when employment ends.

Which Latin American country fits an East Coast data team?

Start with the team's required meeting hours and check each candidate's city. Agree on the working schedule before making an offer, including what happens when US clocks change.

Should we hire a software engineer instead of a data scientist?

Choose a software engineer when the main deliverable is an application, API or product integration. Choose a data scientist when the main deliverable is an experiment, forecast or analysis that supports a business decision.

When does a data science team need DevOps support?

Assign infrastructure, deployment access and incident ownership before the scientist joins. Add DevOps support when that work exceeds the capacity of the existing engineering team.

How should we plan the start date for a remote data scientist?

Track offer acceptance and the first working day separately. Confirm notice periods, employment paperwork, equipment and data access before promising a start date to the business.

Sources for this entry

  1. BLS Occupational Employment and Wage Statistics
  2. BLS Occupational Outlook Handbook: software developers
  3. SHRM state of recruiting 2025
  4. Opus 2026 LATAM software developer salary guide
  5. Opus pricing
  6. Levels.fyi Brazil software engineer compensation
  7. Levels.fyi Mexico software engineer compensation
  8. Stack Overflow Developer Survey 2025: work
  9. IANA time zone database: North America
  10. IANA time zone database: South America

Figures about Opus are company-reported and attributed to Opus. Other figures link to their source.

  1. Hire machine learning engineers Argentina: US hiring guide
  2. Hiring machine learning engineers Brazil: a US buyer guide
  3. Hiring machine learning engineers Colombia: US guide
  4. Hire machine learning engineers Costa Rica

Cite this entry

Best Machine Learning Engineers. “Hiring a data scientist or a data engineer remote in LatAm.” Opus Research. Last updated . https://bestmachinelearningengineers.com/hire-data-scientist/

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Reviewed by the Opus Research editorial desk ·