Senior Machine Learning Engineer (Recommendation Systems)

TL;DR

Senior Machine Learning Engineer (Recommendation Systems): Designing and maintaining production-grade recommendation and ranking systems for consumer-scale platforms with an accent on end-to-end ML pipeline ownership and performance optimization. Focus on building scalable retrieval models, conducting A/B testing, and ensuring low-latency inference in cloud environments.

Location: Remote (Global)

Company

hirify.global is a remote-first startup specializing in Big Data, custom AI solutions, and scalable machine learning infrastructure for retail and e-commerce.

What you will do

• Design, build, and maintain production recommendation systems at consumer scale.
• Develop ranking and retrieval models to enhance personalization and user experience.
• Own ML pipelines end-to-end, from feature engineering and training to deployment and monitoring.
• Collaborate with client stakeholders and engineering teams to deliver scalable ML solutions.
• Analyze large-scale user behavior data and execute A/B tests to optimize performance.
• Improve the reliability, scalability, and latency of production ML systems on cloud platforms.

Requirements

• 6+ years of experience in Software/Data Engineering or ML roles.
• 4+ years building and operating ML systems in production.
• 2-3+ years of experience with recommendation systems, ranking, or retrieval.
• Strong proficiency in Python, SQL, and deep learning frameworks like PyTorch or TensorFlow.
• Experience deploying ML systems on AWS, GCP, or Azure.
• Advanced English proficiency and ability to work autonomously with stakeholders.

Nice to have

• Experience in e-commerce, adtech, or martech domains.
• Familiarity with feature stores, Spark, or low-latency inference systems.

Culture & Benefits

• Remote-first culture with global flexibility.
• Fully covered certifications for AWS, Google Cloud, Azure, and Databricks.
• In-company English lessons.
• Birthday off plus an extra vacation week (Mutt Week).
• Monthly credits via Maslow benefits marketplace.
• Annual team trip.