Applied Scientist leveraging applied research to design production AI systems for Fortune 500 companies. Focusing on knowledge-centric AI, graph-based learning, and advanced RAG architectures.
Responsibilities
Conduct applied research to solve real-world problems using LLMs, graph-based models, and multimodal AI.
Rapidly understand problem context, constraints, and success metrics, and design pragmatic AI solutions aligned with product and business goals.
Design hybrid AI architectures combining knowledge graphs, vector search, and deep learning for reasoning-aware systems.
Research and implement graph embeddings, graph attention networks (GATs), and graph neural networks (GNNs) for representation learning and inference.
Design and build advanced RAG systems at scale, going beyond naïve vector similarity search.
Implement hybrid semantic retrieval across vector stores and graph databases (e.g., entity-aware retrieval, path-based reasoning, graph-augmented RAG).
Optimize retrieval pipelines for latency, relevance, grounding, and explainability in production environments.
Fine-tune LLMs and embedding models for domain-specific tasks (instruction tuning, adapters, LoRA, etc.).
Design and implement LLM agent systems, including multi-agent orchestration strategies, tool use, planning, and memory.
Evaluate, iterate, and optimize agent architectures to solve complex, multi-step enterprise workflows efficiently.
Build and fine-tune document extraction pipelines, including (OCR systems, Layout-aware models, Vision-Language Models (VLMs), Multimodal document understanding and classification).
Design scalable pipelines for enterprise document ingestion, enrichment, indexing, and retrieval.
Build end-to-end AI pipelines covering data ingestion, feature engineering, training, evaluation, deployment, and monitoring.
Partner with platform and data engineering teams to productionize solutions on AWS or GCP.
Monitor model performance, detect drift, and drive continuous improvement strategies.
Design evaluation frameworks, offline metrics, and online experimentation (A/B testing) to measure real-world impact.
Requirements
Bachelor’s, Master’s, or PhD in Computer Science, Machine Learning, Data Science, or a related field.
Strong proficiency in Python and modern ML frameworks (PyTorch preferred).
Hands-on experience with applied research and translating research ideas into production-grade AI systems.
Proven experience with knowledge graphs, graph embeddings, or graph neural networks.
Experience building advanced RAG systems using vector databases and structured knowledge sources.
Strong understanding of LLMs, embeddings, and fine-tuning techniques.
Experience deploying AI systems in enterprise or large-scale production environments.
A product-oriented, problem-solving mindset with the ability to quickly learn new domains and design efficient AI solutions under real-world constraints.
Solid foundation in ML fundamentals, statistics, and experimentation.
Benefits
100% coverage for health, dental, and vision insurance for you and your dependents from day one.
Research Fellow position that explores the economic implications of AI technologies. Designed for PhD students and early - career researchers in related social sciences.
Research Scientist focusing on developing algorithms and productionizing World Models at Waabi. Join a startup pioneering autonomous transportation technology with a world - class team.
Principal Scientist/Sr. Principal Scientist leading analytical chemistry for drug product development at Xenon Pharmaceuticals. Seeking expert with extensive industry experience and analytical methodology knowledge.
Agency Relations Research Assistant at Food Banks Mississauga to collect and analyze data for the Annual Food Bank Visitor Survey. Support volunteers and staff while improving community food security efforts.
Intern supporting Sustainable Packaging and Project Research initiatives at Circular Materials. Coordinating projects, conducting research, and assisting with administrative activities.
Staff Applied Scientist at Lime focusing on advanced computer vision and machine learning solutions. Leading technical strategy and overseeing vision technology lifecycle in micromobility.
Senior Researcher applying mixed - methods research to shape product decisions at innovative AI - native company Webflow. Partnering across teams to deliver actionable insights and inform design decisions.
Senior Principal Scientist designing radioligand precursor syntheses for Lilly. Leading collaborations and technical efforts in modern synthetic chemistry environments.