Senior Machine Learning Engineer

Senior Machine Learning Engineer (Pricing or Computer Vision) 100% Remote, Fluent English (required)

Brazil-based | PJ Contract | Long-term

We are looking for a

Senior Machine Learning Engineer

to join our team on a

long-term, fully remote PJ contract . This is a global environment with international stakeholders, and

fluency in English is mandatory , as all communication and interviews are conducted in English.

This role is open to

Brazil-based professionals

with strong experience in

Pricing/Optimization

or

Computer Vision , who are passionate about building and deploying production-grade ML systems that drive real business impact.

What you’ll do

Lead the development and deployment of Machine Learning solutions to solve complex business problems Own key components of ML systems, influencing technical direction and architectural decisions Develop clean, efficient, and scalable production-grade code Analyze large-scale datasets to generate actionable insights Apply state-of-the-art ML methodologies to build robust and scalable models Collaborate closely with Product, Engineering, and other stakeholders Mentor junior team members and help grow domain expertise within the team Contribute to the company’s technical leadership through research, publications, or patents

Minimum Requirements

5+ years of industry experience in applied Machine Learning Master’s Degree or PhD in Computer Science, Machine Learning, or a related field 3+ years of experience building, deploying, and maintaining ML/DL models in production at scale Strong understanding of ML best practices (feature engineering, A/B testing, experiment design, training & serving pipelines) Hands-on experience with ML algorithms and techniques (gradient boosting, deep neural networks, optimization, regularization) Experience in

at least one

of the following domains: Pricing / price estimation, personalization, recommender systems, computer vision, fraud detection & authentication, or marketing Strong Python skills and experience with scientific and ML libraries (NumPy, Pandas, Scikit-learn, TensorFlow, Keras, PyTorch) Solid data engineering experience with large-scale datasets Experience with Big Data tools such as

Spark, Kafka, Apache Beam Experience with cloud platforms ( AWS, GCP, or Azure ) Proficiency in

Python and SQL

Preferred Qualifications PhD in CS, ML, AI, or related field Experience applying ML to real-world business problems, preferably in

retail or e-commerce Familiarity with

MLOps tools and pipelines Strong sense of ownership, impact-driven mindset, and passion for high-quality ML solutions

Why join us 100% remote work (Brazil-based) Long-term PJ contract Flexible working hours aligned with Brazil time Opportunity to work on impactful ML systems in a global environment Strong technical ownership and growth opportunities