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Staff Machine Learning Engineer

Fullscript7 days ago
Toronto, ON
Staff
Full-Time

Top Benefits

Health plan with supplements discounts and wellness programs.
Flexible work location, hours, vacation, and personal days.
DEIB Council promotes equality and inclusion.

About the role

  • We’re hiring a Staff Machine Learning Engineer to join our AI team and help shape the next generation of Fullscript’s AI-powered experiences
  • You’ll work on building innovative AI capabilities that help clinicians provide better services and help patients improve their health
  • This is a senior individual contributor role for someone who can go beyond implementation
  • In addition to building high-quality systems, you’ll help define technical direction, guide architecture decisions, and identify where AI can create meaningful value in clinical workflows
  • You’ll work with a high degree of autonomy and partner closely with engineering, product, analytics, and medical stakeholders to deliver scalable, reliable, and clinically useful AI experiences
  • Lead the design, development, and deployment of production, multi-turn LLM-powered features, including summarization tools and clinician-facing conversational agents that support follow-up questions and reasoning over clinical context
  • Own backend services in Python that integrate LLM agents with Fullscript’s platform and support reliable production use
  • Help define technical direction for prompting, grounding, safety, and orchestration strategies used across clinical AI workflows
  • Establish and improve evaluation approaches for LLM outputs, including accuracy, hallucinations, edge cases, and overall feature quality
  • Shape engineering patterns for model-related workflows, including testing, CI/CD, observability, and version control
  • Partner with medical, product, and engineering teams to identify high-value opportunities for AI and turn them into practical, scalable product capabilities
  • Work cross-functionally with engineering, analytics, and medical SMEs to refine requirements and ensure data and system design support clinical use cases
  • Provide technical leadership across projects by creating clarity in ambiguous problem spaces, guiding tradeoff decisions, and raising the quality bar for the team
  • Stay current with the latest LLM research and emerging AI technologies, and help assess where they can be applied effectively at Fullscript

Benefits

  • Reach your wellness goals with our benefits plan, discount on practitioner-grade supplements, and company-wide health and wellness programs
  • Our dedicated DEIB Council ensures we advocate for equality and encourage positive change within ourselves and the community. We value the unique qualities and perspectives of our team
  • You choose your own office with our Wherever You Work Well approach. Whether that’s in-person or at home, teams aren’t defined by geography. Output, not location, is our success metric so we also offer a flexible approach to your working hours, vacation, and personal days
  • We empower each other to grow with lunch and learns, lean in circles, show-and-tells, and more. Everyone has something to learn and something to teach so we pride ourselves on growing as a team
  • We’re not just a company — we’re a community. Team lunches, weekly town halls, birthdays, parties, and clubs are an essential part of our community and culture
  • The health of our people relies on the health of our planet. We are certified carbon-neutral, taking our first big step in creating a more sustainable future- Strong proficiency in Python and SQL
  • Strong communication and collaboration skills, with the ability to work effectively across technical and non-technical stakeholders
  • Familiarity with evaluation and monitoring frameworks for LLM outputs, conversational quality, and system reliability
  • A track record of owning complex technical problems end to end and shaping implementation beyond your immediate code contributions
  • Strong experience with LLM application frameworks and tooling, such as LangChain, LangGraph, or similar orchestration and RAG frameworks
  • Experience designing and deploying AI systems that answer open-ended questions, support follow-up interactions, and operate reliably in production
  • 6+ years of experience building and implementing machine learning applications in production, including meaningful experience with LLM-powered agents, conversational experiences, or agent-based workflows
  • Knowledge of MCP, agent orchestration patterns, or related approaches for building multi-step AI systems
  • Experience making sound technical decisions around quality, safety, maintainability, and scalability in production AI systems
  • Experience defining technical direction for AI or machine learning systems across multiple projects or teams
  • Experience building clinician-facing, healthcare-adjacent, or other high-trust AI experiences
  • Experience with recommendation systems, personalization, or other applied ML systems beyond LLMs
  • Experience with modern retrieval, grounding, or evaluation patterns for LLM applications
  • Experience working closely with domain experts to build systems in complex or highly contextual problem spaces

About Fullscript

Health and Human Services
501-1000

Fullscript believes in the power of whole person care and is fully committed to helping all providers deliver it. We help create an ongoing cycle of whole person care by giving providers a single platform that brings together industry-leading labs, clinically effective supplements, and an intuitive suite of tools to promote adherence and outcomes.

www.fullscript.com

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