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Machine Learning Engineer

Twilio· Engineering
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Hybrid (Remote - Spain)full-timePosted 3mo ago

About the role

Machine Learning Engineer on the Conversation Intelligence team at Twilio, focusing on designing, building, and deploying AI-powered features that extract meaning from voice and messaging data at scale, with production pipelines and on-call responsibilities.

Responsibilities

  • Design and development of machine learning solutions, ensuring accuracy, performance, security, and scalability.
  • Implement and maintain end-to-end AI/ML pipelines - from data ingestion and feature engineering through to model development, validation, and deployment with guidance from senior engineers on complex architectural decisions
  • Instrument AI/ML services with appropriate metrics, logging, and telemetry to monitor model performance and operational health against defined SLOs
  • Participate in on-call rotations, executing progressive rollouts and applying standard mitigation strategies to keep production inference services healthy
  • Collaborate across planning, design, and code review phases contributing to product and technical discussions, while helping raise overall code quality through thoughtful review feedback

Qualifications

  • Bachelor's degree in Computer Science, Mathematics, Statistics, or a related quantitative field, or equivalent practical experience
  • 2+ years of experience in machine learning engineering or applied ML, with proficiency in Python and at least one ML framework (PyTorch, TensorFlow, or JAX) and familiarity with NLP libraries (Hugging Face Transformers, NLTK, or SpaCy)
  • Experience developing, testing, and deploying small-to-medium scoped ML services or features in a collaborative engineering environment, including model versioning, experiment tracking, and cloud-based infrastructure (AWS, GCP, or Azure)
  • Proficiency in Python (preferred) or similar OO language
  • Experience utilizing Large (or Small) Language Models within software systems
  • Excellent written and verbal communication skills

Skills

Required:PythonMachine LearningNLP librariesML deployment

Benefits

  • Competitive pay
  • Generous time off
  • Parental and wellness leave
  • Healthcare
  • Retirement savings program
Last updated Oct 22, 2026. Interested? Apply on the company site.

About Twilio

Twilio platform for communications and programmable APIs across messaging, voice, video, and AI-enabled workflows.

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