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Cresta

Machine Learning Engineer (AI Agents)

Job Summary

Cresta is seeking a Machine Learning Engineer to develop and deploy AI Agents using advanced Large Language Models and AI technologies. The role involves designing scalable AI solutions, improving reasoning and evaluation capabilities, and collaborating with software teams to integrate AI systems into customer-facing products. Candidates should have industry experience with AI and machine learning, particularly NLP and Generative AI, along with practical knowledge of frameworks like PyTorch or TensorFlow. The position offers opportunities to innovate in AI security, cost-efficiency, and reliability while working in a dynamic, collaborative environment focused on real-world applications.

Required Skills

Cloud Infrastructure
Problem Solving
Machine Learning
Generative AI
Cross-functional Collaboration
Strategic Thinking
NLP
Distributed Systems
Leadership
Research & Development
Mentoring
Model Deployment
Large Language Models
AI Development
AI Security

Benefits

Paid Time Off
Paid Parental Leave
Medical Insurance
Dental Insurance
Vision Insurance
Remote Work Stipend
Health & Wellness Allowance
Lunch Reimbursement

Job Description

Cresta is on a mission to turn every customer conversation into a competitive advantage by unlocking the true potential of the contact center. Our platform combines the best of AI and human intelligence to help contact centers discover customer insights and behavioral best practices, automate conversations and inefficient processes, and empower every team member to work smarter and faster. Born from the prestigious Stanford AI lab, Cresta's co-founder and chairman is Sebastian Thrun, the genius behind Google X, Waymo, Udacity, and more. Our leadership also includes CEO, Ping Wu, the co-founder of Google Contact Center AI and Vertex AI platform, and CTO & co-founder, Tim Shi, an early member of Open AI.
Join us on this thrilling journey to revolutionize the workforce with AI. The future of work is here, and it's at Cresta.

About the role:

At Cresta, the AI Agent team is on a mission to create state-of-the-art AI Agents that solve practical problems for our customers. We are focused on leveraging the latest technologies in Large Language Models (LLMs) and AI Agent systems, while ensuring that the solutions we develop are cost-effective, secure, and reliable. This role will involve hands-on work on cutting-edge projects, requiring innovative and passionate machine learning engineers who can bring research into practical, scalable applications.

As a Machine Learning Engineer, your goal will be to take AI Agents from the realm of research and bring them into practical, real-world use cases. This includes developing and deploying proprietary LLMs, scaling AI solutions, and addressing key challenges such as evaluation and reliability. While we’re focused on real-world application rather than pure research, you’ll be working with some of the most advanced technologies in the GenAI space.
This is a unique opportunity to shape the future of AI at Cresta by solving complex problems and bringing breakthrough AI advancements into production environments.

Responsibilities:

  • Design, develop, and deploy Cresta’s AI Agent solutions and proprietary models.
  • Focus on practical AI challenges such as improving reasoning, planning capabilities, and evaluation in real-world scenarios.
  • Collaborate with cross-functional teams including front-end and back-end software engineers to integrate AI Agents into Cresta’s customer solutions.
  • Lead initiatives to scale AI systems for production environments, ensuring performance and reliability across use cases.
  • Contribute to solving cutting-edge problems in AI and help define the future roadmap for Cresta’s AI Agents.
  • Innovate and research ways to improve security, cost-efficiency, and reliability of AI systems.

Qualifications We Value:

  • Bachelor’s or Master's Degree in Computer Science, Mathematics, or a related field
  • 2+ years of hands-on industry experience with AI and machine learning, preferably with experience working with LLMs in large-scale production environments
  • Solid knowledge of machine learning concepts and methods, especially those related to NLP, Generative AI, and working with LLMs
  • Practical knowledge of modern machine learning frameworks and technologies (e.g., PyTorch, Tensorflow, Hugging Face, NumPy), as well as experience with distributed systems and cloud-based AI infrastructure
  • Strong problem-solving and strategic thinking abilities, with a proven ability to lead cross-functional teams and work collaboratively to deliver innovative AI solutions in production
  • A passion for driving AI adoption and pushing the boundaries of AI technology into real-world applications, with an ability to mentor junior engineers and influence strategic decisions across the organization

Perks & Benefits:

  • We offer Cresta employees a variety of medical, dental, and vision plans, designed to fit you and your family’s needs
  • Paid parental leave to support you and your family
  • Monthly Health & Wellness allowance
  • Work from home office stipend to help you succeed in a remote environment
  • Lunch reimbursement for in-office employees
  • PTO: 3 weeks in Canada

Compensation for this position includes a base salary, equity, and a variety of benefits. Actual base salaries will be based on candidate-specific factors, including experience, skillset, and location, and local minimum pay requirements as applicable. We are actively hiring for this role in the US and Canada. Your recruiter can provide further details.

We have noticed a rise in recruiting impersonations across the industry, where scammers attempt to access candidates' personal and financial information through fake interviews and offers. All Cresta recruiting email communications will always come from the @cresta.ai domain. Any outreach claiming to be from Cresta via other sources should be ignored. If you are uncertain whether you have been contacted by an official Cresta employee, reach out to [email protected]

Interested in this job?

Application deadline: Open until filled

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Cresta

Cresta was founded with the goal of using AI to help people learn high-value skills and in doing so, make business radically more productive. Cresta’s team of world-renowned AI thought leaders, industry experts, and top-tier investors lean on experience from scaling companies like Google, Facebook, and Open AI on our march towards helping professionals become experts on day one.

See more jobs
Date PostedMay 28th, 2025
Job TypeFull Time
LocationToronto, Canada (Remote)
SalaryCompetitive rates
Exciting remote opportunity (requires residency in Canada) for a Machine Learning Engineer (AI Agents) at Cresta. Offering competitive salary (full time). Explore more remote jobs on FlexHired!

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