Senior Lead Machine Learning Engineer

Job Title:

Senior Lead Machine Learning Engineer

Company: Upwork

Location: United States (Remote)

Type: Full-time

Role Overview:

Upwork is seeking a Senior Lead Machine Learning Engineer to design, implement, and scale advanced ML models that improve platform features such as search relevance, recommendations, and personalization. This role focuses on using large-scale data and cutting-edge techniques (NLP, deep learning) to enhance user experience for millions globally.

Key Responsibilities:

• Develop, deploy, and optimize ML models to boost platform efficiency and accuracy
• Collaborate cross-functionally to align ML solutions with business goals
• Lead model experimentation, monitoring, and scalability on cloud platforms (AWS/GCP/Azure)
• Build scalable ML pipelines for training and inference
• Extract actionable insights via advanced data analysis
• Mentor junior ML engineers and foster innovation and collaboration

Must-Have Qualifications:

• Extensive experience in machine learning and deploying ML models at scale
• Strong foundation in NLP, deep learning, info retrieval, and user behavior modeling
• Proficient in Python, SQL, and ML frameworks like PyTorch or TensorFlow
• Experience operationalizing ML models in cloud ecosystems
• Excellent problem-solving and communication skills
• Growth mindset and passion for continuous learning

Benefits:

• Medical, dental, and vision insurance
• Paid parental leave
• 401(k) with matching
• Tuition assistance
• Remote-first work environment