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Machine learning engineer Jobs in St. Catharines, ON

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Machine learning engineer • st catharines on

Last updated: 2 days ago

Remote Senior Data Scientist - AI Trainer

SuperAnnotateSt. Catharines, Ontario, CA
Remote
Full-time

As a Senior Data Scientist, you will work remotely on an hourly paid basis to review AI-generated analytical reasoning, code, and model outputs, as well as generate high-quality reference solutions...Show more

GUEST SERVICE AGENT

Vintage HotelsJordan Station, ON, CA
Part-time

Inn on the Twenty is currently seeking a Guest Service Agent to join our growing team! This is a great opportunity that can provide flexibility, valuable work experience, and a chance to work with ...Show more

Machinist,Operations

Apex Tool GroupSt. Catharines, ON, CA
Full-time

The CNC Machinist is responsible for programming, setting up, and operating CNC and manual machining equipment to produce precision tooling and machined components.This role requires solid technica...Show more

Remote Swift Engineer - AI Trainer

SuperAnnotateThorold, Ontario, CA
Remote
Full-time

As a remote, hourly paid Swift Engineer, you will review AI-generated responses and generate high-quality Swift and iOS-focused content, evaluating the reasoning quality and step-by-step problem-so...Show more

CHANEL looking for a babysitter or nanny in St. Catharines

SitlySt. Catharines, CA
Part-time

We are a family who loves to keep our time busy with with a variety of activities from crafts, sports, and tons of outdoor time without over scheduling.My daughter loves crafting and outdoor time, ...Show more

 • Promoted

Interim Lead

SephoraSaint Catharines, Canada
Full-time +2

Glendale Ave Space 77 & 78, Saint Catharines, ON L2T 2K9, Canada (CA).This position is for an existing, open vacancy.You'll be a key driver of store success- leading by example to inspire your team...Show more

Senior Remote Education & Leadership Opportunity

3 Years on a RockSt. Catharines, Ontario, Canada
Remote
Full-time

Senior Remote Education & Leadership Opportunity | Flexible Work Structure After years supporting students, leading classrooms, developing curriculum, or guiding teams, many experienced education p...Show more

Intermediate Pavement Engineer

GHDSt Catharines, ON, Canada
Full-time

Intermediate Pavement Engineer or EIT.In an ever-changing world, it requires creativity and innovation to stay ahead.We’re seeking the curious, those who are stimulated by fresh thinking and a desi...Show more

Sr Product Support Engineer (Manufacturing)

TreowGroup RecruitmentNiagara, ON, Canada
Full-time +1

Niagara-based manufacturing client, is seeking a.Senior Product Support Engineer.Our Client’s commitment to Customer Service is what sets them apart.The team is committed to doing what's right for ...Show more

Field Marketing Representative - St. Catharines, ON

KognitiveSt. Catharines, Ontario, Canada
Full-time +1

Field Marketing Representative – Kognitive Sales Solutions.Kognitive Sales Solutions, is seeking highly motivated sales-oriented individuals who can create excitement and connections with consumers...Show more

Machine Operator

Randstad CanadaThorold, Ontario, CA
Full-time +2
Quick Apply

Machine Operator position - Talent Pool Niagara.Randstad Canada is currently building a pipeline of motivated individuals for upcoming opportunities.We are looking for dependable team players inter...Show more

Part-Time English Teacher/Tutor

Oxford Learning Centres, Inc.St. Catharines, Ontario, Canada
Part-time

Part-Time English Teacher/Tutor Wanted.Passionate about puns? Love literature? All about alliteration? Eager to help students succeed in English?.Gain valuable teaching experience! .This position i...Show more

Overnight Urgent Care Veterinarian

MHMISt. Catharines, Ontario, Canada
Full-time

We are seeking an experienced and compassionate Overnight Urgent Care Veterinarian to join our dedicated team in Stoney Creek.Build a fulfilling career that also values your personal time with a co...Show more

Senior Network Engineer (Canada)

FoundeverRemote, Ontario, CA, L2R 5L3
Remote
Full-time

Senior Network Engineer (Canada).Senior Network Engineer (Canada).Foundever® is the next-generation services leader reinventing customer experience (CX).Built on diverse and proven industry experie...Show more

Steward I

AramarkSt. Catharines, ON, CA
Full-time

The Steward serves a variety of important back of the house food & beverage roles which include dishwashing, deep cleaning the kitchen and equipment, and executing other miscellaneous duties.Stewar...Show more

General Labour - Summer Student

American Iron and MetalSt. Catharines, Ontario, Canada
Full-time

You'll get hands-on experience working with metal materials, all while learning about the importance of sustainability and environmental responsibility.Sorting, picking, and processing scrap metals...Show more

Online High School Math Tutor

Empower TutoringSt. Catharines, ON, Canada
Remote
Part-time
Quick Apply

We are looking for a passionate, experienced tutor who has a strong background in Mathematics and can tutor high school students in Grade 9-Grade 12.Candidates should be familiar with the .Ontario ...Show more

Nanny Wanted - Experienced Nanny/Caregiver Needed In St. Catharines, Ontario

CanadianNanny.caSt. Catharines, Ontario, Canada
Part-time

Hello, I am looking for a part-time nanny/caregiver for my four year old son, Casey.I am looking for someone who can provide a long-term commitment (1.I need coverage for Mondays, Wednesdays, and F...Show more

 • Promoted

LTO ES25-193 - Our Lady of Holy Rosary - Grade 7 - 1.0 FTE

Niagara Catholic District School BoardThorold, Ontario, Canada
Full-time

Niagara Catholic District School Board.Please ensure your Occasional Teacher Portfolio is up to date and uploaded with your application.These portfolios will be relied upon and considered for the s...Show more

 • Promoted
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Remote Senior Data Scientist - AI Trainer

Remote Senior Data Scientist - AI Trainer

SuperAnnotateSt. Catharines, Ontario, CA
30+ days ago
Job type
  • Full-time
  • Remote
Job description

As a Senior Data Scientist, you will work remotely on an hourly paid basis to review AI-generated analytical reasoning, code, and model outputs, as well as generate high-quality reference solutions and explanations for complex data problems. You will assess solutions for accuracy, clarity, and adherence to the prompt; identify errors in methodology, modeling choices, or statistical reasoning; fact-check quantitative claims; write clear, step-by-step explanations and model solutions that demonstrate correct methods; and rate and compare multiple AI responses based on correctness and reasoning quality.

This is a fully remote, hourly paid contractor role with SME Careers, a fast-growing AI data services company and subsidiary of SuperAnnotate that provides AI training data to many of the world’s largest AI companies and foundation model labs. Your data science expertise will directly contribute to improving the world’s premier AI models used across products and industries.

Key Responsibilities :

  • Develop AI Training Content : Create detailed prompts in various topics and responses to guide AI learning, ensuring the models reflect a comprehensive understanding of diverse subjects.
  • Optimize AI Performance : Evaluate and rank AI responses to enhance the model's accuracy, fluency, and contextual relevance.
  • Ensure Model Integrity : Test AI models for potential inaccuracies or biases, validating their reliability across use cases.

Your Profile :

  • Bachelor’s degree or higher in Data Science, Computer Science, Statistics, Mathematics, or a closely related quantitative field.
  • 5+ years of professional experience as a Data Scientist or in a closely related analytical role, working on end-to-end machine learning projects.
  • Strong proficiency in Python for data analysis and machine learning, including libraries such as pandas, NumPy, scikit-learn, and related tooling.
  • Solid background in statistics, experimental design, and applied probability, with experience designing and analyzing controlled experiments.
  • Hands-on experience building, evaluating, and deploying machine learning models in real-world business or product environments.
  • Advanced SQL skills and comfort working with large, complex datasets from data warehouses or data lakes.
  • Minimum C1 English proficiency (written and spoken), with the ability to write clear quantitative explanations and follow detailed English-language guidelines.
  • Experience with data visualization tools or dashboards and the ability to present analytical findings to stakeholders.
  • Previous experience with AI data training, annotation, or reviewing AI-generated analytical content is a strong plus.
  • Highly detail-oriented and systematic, with a strong focus on quality, reproducibility, and careful evaluation of reasoning steps.