Machine Learning Engineer I

PROS

Machine Learning Engineer I developing and supporting AI-driven solutions for airline revenue optimization. Collaborating with engineers and data scientists to implement scalable ML components.

Posted 6/12/2026full-timeSofia • 🇧🇬 BulgariaMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

NumpyPandasPythonPyTorchScikit-LearnTensorflow

About the role

Key responsibilities & impact

Implement machine learning models and data pipelines based on guidance from senior engineers and scientists
Assist in converting research prototypes into reliable, scalable production workflows
Support development of data pipelines and feature engineering workflows
Contribute to model training, evaluation, and performance tuning
Deploy and monitor ML models in batch and near real-time environments
Debug issues in data pipelines and model performance with support from senior team members
Write clean, maintainable, and well-documented code
Collaborate with software engineers to integrate ML components into production systems

Requirements

What you’ll need

Degree in Computer Science, Statistics, Engineering, or related field (Masters preferred)
Experience in machine learning, data science, or related area (internships included)
Proficiency in Python and familiarity with ML libraries (such as Numpy, Pandas, Scikit-learn)
Experience with deep learning frameworks (TensorFlow and/or PyTorch) and/or machine learning workflows
Knowledge of core Machine Learning and AI models
Strong problem-solving skills and willingness to learn
Exposure to advanced ML techniques and large-scale optimization problems (highly preferred)
Experience deploying, monitoring, and maintaining ML models for batch and real-time inference (highly preferred)
Experience in pricing, revenue management, and offer optimization (highly preferred)

Benefits

Comp & perks

Flexible ways of working
Continuous learning opportunities

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

machine learningdata pipelinesfeature engineeringmodel trainingmodel evaluationperformance tuningPythonNumpyPandasScikit-learn

Soft Skills

problem-solvingwillingness to learn