Machine learning engineers

The discipline that existed before the current wave and still does the work underneath it. Forecasting, ranking, classification, fraud and recommendation systems rarely need a foundation model and always need someone who has kept a model honest in production.

Typical seniority
Mid-level through principal
Core stack
Python, PyTorch, scikit-learn, Spark, feature stores
Platforms
SageMaker, Vertex, Azure ML, self-managed
Engagement shapes
Single engineer or embedded pod
Typical duration
Three to twelve months
Deliverable
Models with monitoring and a retraining path

Machine learning engineers from CloudOps Network build and operate production ML systems: feature pipelines, training infrastructure, model serving, evaluation, drift detection and monitoring. They are matched on models that ran in production and were maintained afterwards, rather than on notebook work.

What ML engineers do on our engagements

Feature pipelines

Reliable, versioned features with the same computation in training and serving, which is where most production errors originate.

  • Features

Training infrastructure

Reproducible runs, experiment tracking, hyperparameter search and a cost ceiling on the whole thing.

  • Training

Model serving

Latency targets, batching, autoscaling, versioning and a rollback that does not require a deployment.

  • Serving

Evaluation

Offline and online, with the business metric attached, not just the loss curve.

  • Evaluation

Drift and monitoring

Input drift, prediction drift and performance decay, alerted before a stakeholder notices.

  • Drift

Retraining

A scheduled, tested path back to production, so the model does not quietly age into uselessness.

  • Retraining

When you want ML rather than a foundation model

Foundation models absorbed a lot of attention that classical ML should have kept. For structured prediction on your own data, a trained model is usually cheaper, faster, more accurate and far easier to explain to a regulator.

A good ML engineer will make that recommendation even when it is the less fashionable one.

  • Structured, tabular data

    Gradient boosting still wins most of these, at a fraction of the inference cost.

  • Strict latency budgets

    Single-digit millisecond serving is routine for a trained model and difficult otherwise.

  • Explainability requirements

    Regulated decisions need attributable reasoning, which trained models give you more readily.

  • High request volume

    At scale, the cost gap between a hosted model and your own is decisive.

A sample of the bench

Availability changes weekly. This is the shape of who is in the network, not a live list.

Principal ML engineer
Seattle · full overlap with US
  • Serving
  • PyTorch
  • Drift
  • 12 yrs
Senior ML engineer
Bengaluru · overlap with EMEA and APAC
  • Spark
  • Features
  • 8 yrs
Senior ML engineer
Dublin · full overlap with UK and EU
  • SageMaker
  • Ranking
  • 9 yrs
ML engineer
Kraków · overlap with EU and US East
  • Training
  • MLflow
  • 6 yrs
Staff ML engineer
Toronto · full overlap with US
  • Forecasting
  • Monitoring
  • 11 yrs
ML engineer
Singapore · full overlap with APAC
  • Fraud
  • Serving
  • 7 yrs

Illustrative profiles drawn from the current roster. Names and clients are withheld until a mutual NDA is in place; the shortlist you receive names real people with real references.

Questions about hiring ML engineers

Do your ML engineers do data science as well?

Some do both. Most are stronger at productionising and maintaining models than at exploratory analysis, and the shortlist note will say which one a given engineer is.

Can they work with our existing ML platform?

Yes, across the major managed platforms and self-managed stacks. Tell us what you run and we filter for production experience with it.

What if our models have no monitoring today?

That is the common starting point. Instrumenting existing models is usually the first workstream, because it is the only way to tell whether anything after it helps.

Do you handle MLOps as well as modelling?

Yes. For most teams the pipeline and serving work is the larger share of the engagement, and a model without a retraining path is a liability with a deadline.

Tell us what you are building

Describe the work in a few lines. We come back with a shortlist of engineers who have done it before, their availability, and a rate range. No account, no platform fee, no obligation to hire.

Most briefs get a shortlist within three business days.