Senior Machine Learning Platform/Ops Engineer

Stack

Responsibilities

• ▹Build and maintain ML pipelines for training, evaluation, and deployment using tools like Databricks, MLFlow, Airflow, DBT, Sagemaker, Tecton
• ▹Support AI scientists in creating reproducible, containerized model training environments (on-demand and scheduled), and manage compute at scale (e.g., spot/GPU autoscaling)
• ▹Define and implement observability and alerting for ML systems (model drift, data quality, feature coverage, etc.)
• ▹Design and scale data ingestion and feature transformation flows using batch (e.g., Spark/BigQuery) and streaming (Kafka or equivalent)
• ▹Contribute to internal Python libraries and platform tooling that accelerate experimentation and deployment for all model teams
• ▹Ensure ML services are modular, testable, and monitored from day one
• ▹Explore and productionize LLM-based features (e.g., retrieval pipelines, prompt evaluation, model serving)

Requirements

• ▹Proven experience designing and deploying ML systems in production (5+ years in relevant roles)
• ▹Proficiency in Python and SQL, and orchestration tools (Airflow, Kubeflow, Dagster, etc.)
• ▹Experience with modern cloud platforms (preferably GCP or AWS), Kubernetes, and CI/CD workflows
• ▹Understanding of ML model lifecycles: training, validation, deployment, and monitoring
• ▹Strong DevOps practices: Git, IaC (Terraform), logging/observability, containerization (Docker/K8s)
• ▹Ability to work independently with ML Scientists and mentor peers in reliability, testing, and delivery
• ▹Product impact driven mindset

Nice to have

• ▹Exposure to LLM serving, vector databases, or GenAI-powered product flows
• ▹Deep, hands-on expertise in AI tools, especially in agentic AI SDLC

Soft skills

What we offer

• ▹Open, collaborative, dynamic and diverse culture
• ▹A generous monthly allowance for lessons on Preply.com
• ▹Learning & Development budget and time off for self-development
• ▹A competitive financial package with equity, leave allowance and health insurance
• ▹Access to free mental health support platforms

About the company

Preply is a language-learning platform connecting 100,000+ tutors with learners across 180 countries in 90+ languages. Having recently reached unicorn status with a $150M Series D, the company builds human-led, AI-enhanced learning experiences.