Machine Learning Engineer – Recommendation Systems

MUTT DATA

Machine Learning Engineer Specialist developing production recommendation systems for Muttdata's innovative data and ML solutions. Join a dynamic team focused on advanced technologies for real-world applications.

Posted 5/20/2026full-timeRemote • 🇦🇷 ArgentinaMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

AWSAzureGoogle Cloud PlatformPythonPyTorchSparkSQLTensorflow

About the role

Key responsibilities & impact

Design, build, and maintain production recommendation systems at consumer scale.
Develop ranking and retrieval models to improve personalization and user experience.
Own ML pipelines end-to-end, from feature engineering and training to deployment and monitoring.
Collaborate with client stakeholders and engineering teams to deliver scalable ML solutions.
Analyze large-scale user behavior data and run A/B tests to optimize recommendation performance.
Improve reliability, scalability, and latency of production ML systems on AWS/GCP/Azure.

Requirements

What you’ll need

6 years of experience in Software/Data Engineering or ML roles.
4+ years building and operating ML systems in production.
2-3+ years working on recommendation systems, ranking, retrieval, or personalization.
Strong Python and SQL skills. Experience with PyTorch or TensorFlow.
Experience deploying ML systems on AWS, GCP, or Azure.
Experience working with large-scale consumer data and production environments.
Advanced English level and ability to work autonomously with stakeholders.
Experience in e-commerce, adtech, martech, or consumer products.
Experience with A/B testing, feature stores, Spark, or low-latency inference systems.

Benefits

Comp & perks

**Remote-first culture **– work from anywhere! 🌍
**AWS, DBT, Google Cloud, Azure & Databricks** certifications fully covered
In-Company **English Lessons.**
**Birthday off + an extra vacation week** (Mutt Week! 🏖️)
**Referral bonuses **– help us grow the team & get rewarded!
**Maslow:** Monthly credits to spend in our benefits marketplace.
✈️**🏝️ Annual Mutters' Trip** – an unforgettable getaway with the team!

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

PythonSQLPyTorchTensorFlowML pipelinesfeature engineeringA/B testingranking modelsretrieval modelspersonalization

Soft Skills

collaborationcommunicationautonomystakeholder management