Job Description

Senior Machine Learning Engineer – Recommendation Systems

Remote – United States

Salary: $160,000 – $250,000 + Equity

Please note: Candidates must be fluent in both Mandarin and English.

Revive Recruitment is partnering with a well-funded, high-growth AI startup that is transforming the way millions of users discover and engage with digital content. Backed by leading venture capital investors, this is an opportunity to join an ambitious engineering team building cutting-edge machine learning systems that directly influence user engagement and product growth.

This is a senior individual contributor role where you'll take ownership of recommendation and search systems, working at the intersection of machine learning, large-scale data and consumer products.

What You'll Do

• Design, build and optimise large-scale recommendation and search systems for consumer applications.

• Develop retrieval and ranking models, including embedding-based retrieval, candidate generation and two-tower architectures.

• Build production-grade machine learning pipelines from experimentation through to deployment.

• Analyse user behaviour and content signals to improve recommendations, engagement and retention.

• Run A/B tests and use data-driven insights to continuously improve model performance.

• Partner closely with Product, Data Science and Engineering teams to shape the future direction of the platform.

• Help define the long-term machine learning architecture and best practices across the business.

What You'll Have

• 5+ years' experience building production recommendation, ranking or search systems for consumer-facing products.

• Strong Python development skills.

• Hands-on experience with recommendation algorithms, ranking models and retrieval systems.

• Experience with embedding models, two-tower architectures or similar recommendation frameworks.

• Strong knowledge of TensorFlow or PyTorch.

• Experience building scalable ML pipelines and deploying models into production.

• A solid understanding of experimentation methodologies, A/B testing and performance optimisation.

• Excellent communication skills with the ability to collaborate across technical and non-technical teams.

• Fluency in both Mandarin and English is essential.

What's In It For You

• Competitive salary of $160,000–$250,000 plus meaningful equity.

• Fully remote position within the United States.

• Comprehensive healthcare and benefits package.

• Opportunity to work on large-scale AI and machine learning challenges that impact millions of users.

• Join a fast-growing, venture-backed startup with genuine opportunities for progression and ownership.

• Work alongside a highly talented engineering team solving complex, real-world machine learning problems using the latest technologies.