Machine Learning Engineer, Search Quality

As a Machine Learning Engineer focused on Search Quality, you will help build Glean’s search and assistant capabilities for work, contributing to systems that understand queries and documents, adapt language models to customer content, and improve personalization and ranking performance.

What You’ll Do

• Develop new signals aimed at improving personalization across Glean’s search engine.
• Train models that capture interactions among signals within the ranking system.
• Create smarter approaches for domain-adapting language models to each customer’s corpus.
• Explore methods for combining LLMs with search engines to answer complex questions.
• Write robust code that is readable, maintainable, and testable.
• Mentor more junior engineers, or learn from experienced team members.

Key Responsibilities for Search Quality

Your work will span query and document understanding, domain-adapted language models, question answering, evaluation, and experimentation, with an emphasis on improving personalization and search and ranking systems.

Required Qualifications

• 2+ years of experience.
• BA/BS in computer science, math, sciences, or a related degree.
• Experience working with search, recommendation, natural language processing, or other large machine learning systems.
• Strong analytical skills and the ability to work with data.
• Proven ability to design, build, and ship production-ready models.
• Proficiency in your machine learning framework of choice.
• Strong coding skills, including Python, Go, Java, C++, or similar.
• Ability to thrive in a customer-focused, tight-knit, cross-functional environment, with a team-player mindset and willingness to take on what is most impactful.
• A proactive and positive approach to lead, learn, troubleshoot, and take ownership of tasks and features.

Technologies

• Python
• Go
• Java
• C++
• LLMs
• Machine learning

Location and Work Setup

This is a hybrid role based in San Francisco, CA , with 4 days a week in the San Francisco office .

Compensation

USD 140,000 - 265,000 per year.

Benefits

• Medical, Vision, and Dental coverage.
• Generous time-off policy.
• Opportunity to contribute to your 401k plan.
• Home office improvement stipend.
• Annual education and wellness stipends.
• Healthy lunches daily.
• Variable compensation, equity, and benefits may be eligible (depending on role).

AI-First Mindset at Glean

As part of the interview process, you will complete a brief AI-focused exercise or discussion to explain how you think about, design, and use AI to drive impact in your role.