Machine Learning Engineer

LeverageTek Staffing Solutions; Ottawa; Remote; CAD 80,000 - 120,000; Full time

Job summary

LeverageTek Staffing Solutions is looking for a Machine Learning Engineer for a 6-month contract in Ottawa. This 100% remote position requires expertise in ML and NLP, with tasks involving system design, data processing, and ML pipeline development. Candidates should have a strong background in Python, relevant ML frameworks, and deployment methodologies.

Qualifications

• Strong experience with Classical ML Algorithms.
• Experience with DNN Architectures and NLP techniques.
• Experience with APIs and containerization techniques.

Responsibilities

• Lead design and implementation of ML solutions for NLP systems.
• Build LLM-powered APIs and chatbot assistants.
• Integrate ML product consumption through platforms like MS Teams.

Skills

Machine Learning

Deep Learning

Natural Language Processing

Python

SQL

Tools

PyTorch

TensorFlow

LangChain

Docker

Kubernetes

Job description

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Senior Recruitment Specialist at LeverageTek Staffing Solutions

LeverageTek is actively seeking a Machine Learning Engineer / Developer for a 6-month contract with its Ottawa based client.

Work Location

This position can be done 100% remote across Canada

Security Clearance:

None

Key Tasks

• Lead the system design and implementation of ML solutions focused on RAG pipelines, LLMs, and production-grade infrastructure for NLP systems that combine structured and unstructured data from multiple sources.
• Build LLM-powered APIs and Chatbot Assistants using LangChain, LlamaIndex, or similar frameworks. Work with vector databases like pgvector, Weaviate, or Pinecone to store and retrieve document embeddings.
• Ingest and process data from sources like SharePoint, Documents, GitLab, Confluence, Databases, Wikis, and more.
• Design and integrate new use cases for the NLQ (Natural Language Querying) product by working with data pipelines and enhancing prompt engineering. Train or fine-tune lightweight models for intermediate NLP requirements.
• Develop and iterate on the existing ML pipeline, including containerized services deployed via Docker and Kubernetes. Enforce MLOps standards, and Integrate ML Product consumption through platforms such as MS Teams, Code Editors (VS Code, RStudio)

Key Qualifications:

• Strong experience and background with Machine Learning (Classical ML Algorithms)
• Strong background and experience with Deep Learning (DNN Architectures) – RNN, LSTM, Transformers, GANs, Graph Neural Networks
• Strong background and experience with Natural Language Processing - Neural Machine Translation, Sentiment Analysis, Text Generation, Summarization, Q&A

Qualifications:

• Experience with Languages & Frameworks – Python, SQL, PyTorch/TensorFlow, LangChain, LlamaIndex, Haystack, FAISS, Sentence Transformers
• Experience with Text Data Preparation – Data Cleaning, Chunking, Embedding
• Experience with Retrieval Augmented Generation (RAG) - Content Generation
• Experience with APIs – REST API endpoints for deployment
• Experience with Containerization (Docker - AWS ECS and AWS ECR)

Assets:

• Experience with Vector DB Storage - Ingesting, Indexing, Querying for Similarity Search and Retrieval with LLMs
• Experience with Advanced RAG – Optimizing Retrieval, Refining Retrievals, Knowledge Graphs
• Experience with LLM Deployment – Infrastructure Optimization, Scaling and Model Serving from Backend
• Experience with LLM Inference Optimization – Quantization, Pruning, Caching
• Experience with LLM Maintenance – Performance Monitoring, Error Detection, Bias Mitigation, Data Drift

About LeverageTek Staffing Solutions

Founded in 2003, LeverageTek provides end-to-end, cross-functional staffing solutions throughout North America. We are a trusted partner to leading private and public sector organizations and experts in talent solutions that create optimal business outcomes.

Don’t let our name fool you. Our roots are in technology, but we are also a proven leader in accounting and finance, sales and marketing, human resources, supply chain, and legal talent acquisition. We offer contract and permanent staffing, executive search, talent mapping, management consultancy, and contractor payroll management.

LeverageTek is an equal opportunity employer. We offer a welcoming and inclusive environment in service to one another, our customers, the candidates we represent, and the diverse communities we call home. We do all of this with kindness, empathy, and respect for each other. LeverageTek is committed to employment equity and creating a diverse and inclusive workplace. We welcome applications from all qualified individuals regardless of race, religion, gender, national origin, age, disability, and marital status.

Accessibility accommodations are available upon request

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Contract

Job function

• Job function

  Engineering and Information Technology

• Industries

  Hospitals and Health Care, Public Health, and IT Services and IT Consulting

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