Note: The job is a remote job and is open to candidates in USA. Harnham is partnering with a fintech that has built a leading fraud protection platform. They are seeking a Senior Machine Learning Engineer to own the end-to-end lifecycle of machine learning projects and build scalable ML pipelines for fraud detection.

Responsibilities

• Own the end-to-end lifecycle of machine learning projects, from experimentation through deployment and production monitoring
• Build, maintain, and optimize production-grade machine learning models for fraud detection
• Design and implement scalable ML pipelines to enable rapid experimentation and model iteration
• Develop advanced feature engineering and statistical methodologies to improve model performance
• Collaborate with Product, Engineering, and Risk teams to translate business needs into ML solutions
• Contribute to model training, evaluation frameworks, and experimentation infrastructure
• Ensure robustness, scalability, and reliability of ML systems in high-volume production environments
• Drive best practices in testing, documentation, and model monitoring across the ML team

Skills

• 4–6+ years of experience in machine learning within production environments
• Strong foundation in machine learning theory, statistical modeling, and evaluation techniques
• Experience building and deploying supervised and unsupervised ML models at scale
• Proven track record of taking ML projects from research/prototype to production
• Proficiency in Python, SQL, and key machine learning libraries
• Experience working with distributed data processing tools such as Spark
• Strong communication skills, with the ability to explain technical insights to non-technical stakeholders
• Detail-oriented mindset with a focus on delivering measurable business impact
• Experience in fraud detection, fintech, payments, or e-commerce domains
• Advanced degree (Master's or PhD) in a quantitative field
• Passion for writing well-tested, production-quality code
• Interest in adversarial machine learning and combating fraud at scale

Benefits

• Performance-based bonus
• A comprehensive benefits package within a fast-growing, mission-driven organization

Company Overview

Company H1B Sponsorship