✦ Luna Orbit — AI & Machine Learning

Sr Machine Learning Engineer

at PayPal Holdings

📍 San Jose, California, United States of America Hybrid 💰 $159K – $236K USD / year Posted April 02, 2026
Salary $159K – $236K USD / year
Type Full-Time
Experience senior
Exp. Years 3+ years
Education Bachelor's degree in Computer Science, Software Engineering or related field
Category AI & Machine Learning

Sr Machine Learning Engineer at PayPal builds and deploys scalable ML models, collaborating with data scientists and product teams to enhance services with AI/ML solutions in a hybrid environment.

  • Develop and optimize machine learning models for various applications
  • Preprocess and analyze large datasets
  • Deploy ML solutions into production environments
  • Collaborate with cross-functional teams to integrate ML models
  • Monitor and evaluate model performance

Stack includes Python with ML frameworks (TensorFlow, PyTorch, scikit-learn), containerization (Docker, Kubernetes), Spark for big data, cloud platforms (AWS/Azure/GCP), and CI/CD tooling.

The ideal candidate is a senior ML engineer with 3+ years of hands-on experience in Python ML frameworks, cloud exposure, and containerization, ready to work in a hybrid PayPal environment.

3+ years relevant experienceBachelor's degree in Computer ScienceSoftware Engineering or related fieldProficient in Python and familiar with Java / ScalaExperience with Spark and big data technologiesCloud platforms (AWSAzureGCP) and containerization (DockerKubernetes)
Prompt engineeringAgent developmentMySQL / InfluxDBLinux troubleshootingCI/CD pipelines
PythonTensorFlowPyTorchscikit-learnDockerKubernetesSparkLinuxAmazon Web ServicesMicrosoft AzureGoogle Cloud PlatformMySQLInfluxDBJenkins
PythonTensorFlowPyTorchscikit-learnDockerKubernetesSparkLinuxAWSAzureGoogle Cloud PlatformMySQLInfluxDBCI/CDJenkinsprompt engineeringagent development
PythonTensorFlowPyTorchscikit-learnDockerKubernetesSparkLinuxAmazon Web ServicesMicrosoft AzureGoogle Cloud PlatformMySQLInfluxDBCI/CDJenkins
Team spiritCommunicationCollaborationProblem-solving
Industry Fintech
Job Function Design, develop, and deploy scalable ML models and AI-enabled services at PayPal
Role Subtype ML Engineer
Tech Domains Python, TensorFlow, PyTorch, scikit-learn, Docker, Kubernetes, Spark, Linux, Amazon Web Services, Microsoft Azure, Google Cloud Platform
Sr Machine Learning EngineerPayPalTensorFlowPyTorchscikit-learnPythonJavaScalaSparkDockerKubernetesCI/CDJenkinsLinuxMySQLInfluxDBAWSAzureGoogle Cloud Platformprompt engineeringagent development

3+ years of Python experience, Bachelor's degree in CS/SE or related field, Proficiency in ML frameworks and cloud platforms

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