Deloitte · 1 day ago
Research Engineer
Toronto, Ontario, Canada
Full-time
Hybrid
Mid Level
$72K/yr - $138K/yr
3+ years expDeloitte is a professional services firm dedicated to making a positive impact on society. They are seeking a passionate AI Researcher to work at the intersection of AI research and product engineering, focusing on designing and deploying generative AI systems that are reliable and impactful.
AccountingConsultingFinancial ServicesLegalProfessional ServicesRisk Management
Responsibilities
Collaborate with product managers, engineers, and stakeholders to design AI-driven solutions that meet technical and business requirements
Research, prototype, and develop generative AI applications by combining non-deterministic LLMs with deterministic software engineering techniques
Build evaluation frameworks and benchmarks to measure model quality, reliability, and business impact
Generate regular reports on model accuracy, drift, and performance
Debug, optimize, and enhance GenAI applications using prompt engineering, reinforcement learning, fine-tuning, and software engineering best practices
Train and fine-tune large language models using Hugging Face Transformers
Apply reinforcement learning fine-tuning techniques using Hugging Face TRL (Transformers Reinforcement Learning)
Manage training workflows with experiment tracking tools and distributed training accelerators (DeepSpeed, Accelerate, FSDP)
Run and optimize multi-GPU training and inference, leveraging vLLM for high-throughput, low-latency serving
Contribute to the design of scalable MLOps/DevOps pipelines for model deployment, monitoring, and continuous training
Ensure compliance with data privacy, security, and responsible AI guidelines when handling training or test datasets
Stay current with emerging research in LLMs, RLHF/RLAIF, multimodal AI, and generative models; apply findings to improve our systems
Author technical documentation and contribute to publications, patents, or open-source projects where applicable
Qualification
Required
3+ years experience in machine learning engineering, data engineering, or applied research (industry or academic)
Strong programming skills in Python and experience with frameworks such as PyTorch, TensorFlow, JAX
Hands-on experience with Hugging Face Transformers for pretraining, fine-tuning, or inference
Experience with Hugging Face TRL for reinforcement learning fine-tuning (e.g., PPO, DPO, GRPO, RLAIF)
Practical experience managing multi-GPU training and distributed training at scale using DeepSpeed, Accelerate, or FSDP
Experience running inference on large models using vLLM or similar optimized serving frameworks
Familiarity with experiment tracking and reproducibility tools (e.g., W&B, MLflow)
Knowledge of MLOps practices including continuous training, continuous monitoring, and model lifecycle management
Experience with GenAI frameworks such as LangChain, AutoGen (A2A), or MCP
Demonstrated ability to write clean, maintainable, production-ready code
Experience building or supporting cloud-based AI systems (GCP, AWS, or Azure; certifications preferred)
Strong grasp of reinforcement learning, NLP, and/or generative modeling (transformers, diffusion, RAG, etc.)
Track record of research contributions (papers, patents, open-source projects) is a plus
Preferred
Transformers (Hugging Face) for model training, fine-tuning, and inference
TRL (Transformers Reinforcement Learning) for RL-based fine-tuning (PPO, DPO, GRPO, RLAIF)
DeepSpeed, Accelerate, or FSDP for multi-GPU and distributed training
vLLM for optimized inference and serving of large models
Weights & Biases (W&B) or MLflow for experiment tracking and reproducibility
LangChain, AutoGen (A2A), or MCP for GenAI application development
PyTorch as the primary deep learning framework
Benefits
$4,000 per year for mental health support benefits
$1,300 flexible benefit spending account
Firm-wide closures known as 'Deloitte Days'
Dedicated days off for learning (known as Development and Innovation Days)
Flexible work arrangements
Hybrid work structure
Company
Deloitte
Deloitte is a business consulting company that offers audit, consulting, financial advisory, and tax services.
10001+ employees
Funding
Current Stage
Late StageLeadership Team
Anne Muraya
Chief Executive Officer - East Africa
Joe Ucuzoglu
Global Chief Executive Officer
Recent News
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