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Database developer Jobs in Thorold, ON

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Database developer • thorold on

Last updated: 22 hours ago
Remote Senior SQL Engineer - AI Trainer

Remote Senior SQL Engineer - AI Trainer

SuperAnnotateWelland, Ontario, CA
Remote
Full-time
As a Senior SQL Engineer, you will work remotely on an hourly paid basis to review AI-generated SQL queries, database designs, and data-processing logic, as well as generate high-quality reference ...Show moreLast updated: 22 days ago
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.NET Developer - AI & Agent Enablement

.NET Developer - AI & Agent Enablement

KPMG CanadaSt. Catharines, Niagara Region, CA
Full-time
At KPMG, you’ll join a team of diverse and dedicated problem solvers, connected by a common cause turning insight into opportunity for clients and communities around the world.NET Developer with st...Show moreLast updated: 22 hours ago
digital marketing officer

digital marketing officer

ADFUEL MEDIA INC.Niagara Falls, ON, CA
Permanent
Experience : 1 year to less than 2 years.Advertising, marketing and public relations agency.Advise clients on advertising or sales promotion strategies. Develop portfolio of marketing materials.Evalu...Show moreLast updated: 30+ days ago
Software Developer

Software Developer

Meridian Credit UnionSt. Catharines, Niagara Region, CA
Full-time
Get AI-powered advice on this job and more exclusive features.At Meridian our aspiration is to integrate our purpose into everything we do for people, the planet, and communities.We believe that ou...Show moreLast updated: 28 days ago
Intermediate Software Developer

Intermediate Software Developer

PanasonicNiagara-on-the-Lake, ON, CA
Full-time
Panasonic Canada over 100 years, Panasonic has been committed to enhancing the well-being of people, communities, and society. Our technologies and solutions have been developed with one aim in min...Show moreLast updated: 30+ days ago
Senior Developer (Data)

Senior Developer (Data)

Farm Credit CanadaVarious FCC office s in Ontario may be considered
Full-time
Salary Range (plus eligible to receive a performance based incentive, applicable to position) : .Experienced data developer needed. Using your experience in Agile Scrum methodology and AWS data pipel...Show moreLast updated: 30+ days ago
Development Officer Planned Giving

Development Officer Planned Giving

Niagara Health FoundationSt. Catharines, ON, Canada
Full-time
Reporting to the President and CEO, the Development Officer Planned Giving is responsible for ensuring the success of the Niagara Health Foundation’s Planned Giving Program.The Development Officer ...Show moreLast updated: 19 days ago
Building Manager Live-IN

Building Manager Live-IN

Chad Management GroupWelland, Niagara Region, CA
Full-time
Our Client is a very prestigious Property Developer in the Toronto area.We are Looking for a Live in Building Manager Couple to Join this team. Familiar with all aspects of building operation.Strong...Show moreLast updated: 30+ days ago
iOS Developer Intern / Co-op (Remote)

iOS Developer Intern / Co-op (Remote)

TorontoJobsREMOTE, ON
Remote
Part-time +1
OS Developer Intern / Co-op (Remote).Guhuza is seeking an iOS Developer to join our remote team and contribute to the development of our iOS app. As an iOS Developer at Guhuza, you will play a cruci...Show moreLast updated: 30+ days ago
Application Support Analyst

Application Support Analyst

Juventus ConsultingOntario
Full-time
We are looking for an Application Developer both Java and.The split would be 75% Java work and 25%.This is 1 year contract, work could be out of Toronto or Waterloo. The required candidate will be a...Show moreLast updated: 30+ days ago
Sr. SharePoint Developer

Sr. SharePoint Developer

Medavie Blue CrossON, CA
Full-time +1
What makes us a different kind of employer?.As a national health solutions partner, Medavie is committed to improving the wellbeing of Canadians — and in our digital-first culture, technology is ke...Show moreLast updated: 30+ days ago
Web Developer

Web Developer

CB CanadaNiagara Falls, Ontario, Canada
Permanent
Our client designs, markets & sells highest performance consumer electronics that are smart, simple and stylish.From high fidelity turntables to wireless video connectivity systems, they create inn...Show moreLast updated: 30+ days ago
Course Developer - Managerial Decision Making (BUSI 401)

Course Developer - Managerial Decision Making (BUSI 401)

University of Niagara Falls CanadaNiagara Falls, Niagara Region, CA
Full-time
Direct message the job poster from University of Niagara Falls Canada.Talent Acquisition Advisor @ UNF │ Education, Tech & Startups. Course Developer - Managerial Decision Making (BUSI 401).Universi...Show moreLast updated: 30+ days ago
Executive Assistant

Executive Assistant

Hotel Dieu Shaver (HDS) FoundationSt. Catharines, Niagara Region, CA
Permanent
Executive Assistant – Hotel Dieu Shaver (HDS) Foundation.The Hotel Dieu Shaver (HDS) Foundation raises funds to support Hotel Dieu Shaver, Niagara’s only rehabilitation hospital serving more than 4...Show moreLast updated: 11 days ago
Building Student -

Building Student -

The City Of ThoroldThorold, Niagara Region, CA
Full-time +1
By joining the City of Thorold team, you will be choosing to become part of the fastest growing municipality in the beautiful Niagara region. Working with us means a supportive and collaborative tea...Show moreLast updated: 5 days ago
JPC - 1425 - Lead Web Backend Developer(NodeJS)

JPC - 1425 - Lead Web Backend Developer(NodeJS)

ITS GlobalOntario
Full-time
Our Client is looking for a senior web developer who is proficient in NodeJS, Serverless, AWS Lambda, and Azure functions, etc. As part of the engineering team, you will work to build software to he...Show moreLast updated: 30+ days ago
digital marketing officer

digital marketing officer

Government of Canada - CentralNiagara Falls, Niagara Region, CA
Full-time
Work must be completed at the physical location.There is no option to work remotely.Advertising, marketing and public relations agency. Advise clients on advertising or sales promotion strategies.De...Show moreLast updated: 30+ days ago
Restaurant Cashier

Restaurant Cashier

thehivecareers.coSt. Catharines, Niagara Region, CA
Full-time
We are searching for a friendly and professional fast food cashier to join our restaurant staff.As the first point of contact, you will greet and assist customers as they enter our restaurant.In th...Show moreLast updated: 2 days ago
Compliance Specialist

Compliance Specialist

Pinchin in CanadaSt. Catharines, Niagara Region, CA
Full-time
Atlantic, Ontario, or Manitoba – CA (Work from home).Pinchin is recruiting for a Compliance Specialist to join the Finance & Administration department in Canada. We are looking for a highly organize...Show moreLast updated: 23 hours ago
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Remote Senior SQL Engineer - AI Trainer

Remote Senior SQL Engineer - AI Trainer

SuperAnnotateWelland, Ontario, CA
22 days ago
Job type
  • Full-time
  • Remote
Job description

As a Senior SQL Engineer, you will work remotely on an hourly paid basis to review AI-generated SQL queries, database designs, and data-processing logic, 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, query structure, indexing strategy, or conceptual understanding; fact-check data-related claims; write clear, step-by-step explanations and model solutions that demonstrate correct methods; and rate and compare multiple AI responses based on correctness, performance, 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 SQL and database engineering expertise will directly contribute to improving the world’s premier AI models used across 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 Computer Science, Information Systems, Engineering, Mathematics, or a closely related technical field.
  • 7+ years of professional experience working with SQL in production environments as a Database Engineer, SQL Developer, Data Engineer, or similar role.
  • Expert-level proficiency in SQL, including complex joins, window functions, aggregation strategies, and query plan analysis.
  • Demonstrated experience with database performance tuning, indexing strategies, and troubleshooting concurrency or locking issues.
  • Hands-on experience designing relational data models, schemas, and data warehouse structures (star and snowflake schemas).
  • Strong experience with ETL / ELT processes and tooling, as well as working with large-scale data in modern cloud or on-prem data platforms.
  • Minimum C1 English proficiency (written and spoken), with the ability to write clear technical explanations and follow detailed English-language guidelines.
  • Comfort with version control, CI / CD practices, and collaborative workflows for managing database changes.
  • Previous experience with AI data training, annotation, or evaluating AI-generated technical content is a strong plus.
  • Highly detail-oriented and systematic, with a methodical approach to evaluating reasoning quality and identifying subtle data or query issues.