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Database developer Jobs in Thorold, ON

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Database developer • thorold on

Last updated: 1 day ago
Remote Senior SQL Engineer - AI Trainer

Remote Senior SQL Engineer - AI Trainer

SuperAnnotateNiagara Falls, 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: 2 days 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
  • Promoted
Customer Services Team Support Specialist

Customer Services Team Support Specialist

Profile Products LLCSaint Catharines, ON, Canada
Full-time
Customer Service Team Support Specialist.This position is responsible for managing customer orders, coordinating shipments, and addressing inquiries in a professional and efficient manner.The role ...Show moreLast updated: 30+ days ago
employment coach

employment coach

CERF NiagaraWelland, ON, CA
Permanent
Education : Secondary (high) school graduation certificate.Experience : 1 year to less than 2 years.Interview clients to obtain employment history, educational background and career goals.Refer clien...Show moreLast updated: 1 day ago
ASP.Net Software Developer

ASP.Net Software Developer

Clickback Inc.St. Catharines, Niagara Region, CA
Full-time
We are looking for a driven ASP.NET Core Software Developer to join our team.If you believe you can work and communicate well in a fast-paced entrepreneurial software company, we want to talk to yo...Show moreLast updated: 30+ days ago
Junior QA Engineer

Junior QA Engineer

Welland Medical LtdWelland, Niagara Region, CA
Full-time
Welland Medical brings to market the best and most innovative products that enhance the lives of people living with a stoma across the world. Investing in the most talented people, collaborating to ...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: 7 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
Data Systems Analyst : SQL, Power BI & Automation

Data Systems Analyst : SQL, Power BI & Automation

Kaizen Lab Inc.St. Catharines, Niagara Region, CA
Full-time
An educational institution in Niagara is seeking a detail-oriented Data Systems Analyst to join its IT team.The successful candidate will develop and maintain database systems to support strategic ...Show moreLast updated: 16 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
administrative support officer

administrative support officer

AESTHETIC SERENITY SPA LTDSt. Catharines, ON, CA
Permanent
Heures de travail : 30 hours per week.Secondary (high) school graduation certificate.Implement new administrative procedures. Review and evaluate new administrative procedures.Delegate work to office...Show moreLast updated: 8 days ago
Software Developer

Software Developer

MeridianSt Catharines, ON L2SW3, CAN
Full-time
At Meridian our aspiration is to integrate our purpose into everything we do for people, the planet, and communities.We believe that our greatest opportunity is to create opportunity and meet peopl...Show moreLast updated: 9 days ago
Data Systems Analyst

Data Systems Analyst

RIDLEY COLLEGESt. Catharines, Ontario
Full-time
Position Title : Data Systems Analyst.Founded in 1889, Ridley College is a co-educational boarding and day school with over 750 students in JK to grade 12 from more than 55 countries worldwide.The R...Show moreLast updated: 30+ days ago
  • Promoted
Building Manager Live-IN

Building Manager Live-IN

Chad Management GroupWelland, ON, Canada
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
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
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Remote Senior SQL Engineer - AI Trainer

Remote Senior SQL Engineer - AI Trainer

SuperAnnotateNiagara Falls, Ontario, CA
2 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.