Current jobs related to Senior Back End Developer - Toronto Montreal Calgary Vancouver Edmonton Old Toronto Ottawa Mississauga Quebec Winnipeg Halifax Saskatoon Burnaby Hamilton Halton Hills Victoria Surrey London Regina Markham Brampton Vaughan Kelowna Laval Southwestern Ontario W - CoLab Software
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Back End Developer
3 weeks ago
Toronto, Montreal, Calgary, Vancouver, Edmonton, Old Toronto, Ottawa, Mississauga, Quebec, Winnipeg, Halifax, Saskatoon, Burnaby, Hamilton, Victoria, Surrey, Halton Hills, London, Regina, Markham, Brampton, Vaughan, Kelowna, Laval, Southwestern Ontario, R, Canada Fortiv Technical Inc. Full timeBack-End Developer Our client is looking for a talented Back-End Developer to help with growing needs. You will be developing systems and APIs that power a rich set of applications used by a large and passionate group of users daily. Your ability to create scalable, maintainable, and performant software is critical to the entire company's success. In your...
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Back End Developer
3 weeks ago
Toronto, Montreal, Calgary, Vancouver, Edmonton, Old Toronto, Ottawa, Mississauga, Quebec, Winnipeg, Halifax, Saskatoon, Burnaby, Hamilton, Victoria, Surrey, Halton Hills, London, Regina, Markham, Brampton, Vaughan, Kelowna, Laval, Southwestern Ontario, R, Canada DataAnnotation Full timeJoin to apply for the Back End Developer role at DataAnnotationWe are looking for a Back End Developer to join our team to train AI models. You will measure the progress of these AI chatbots, evaluate their logic, and solve problems to improve the quality of each model.To apply to this role, you will need to be proficient in either Python and/or JavaScript....
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Back End Developer
3 weeks ago
Toronto, Montreal, Calgary, Vancouver, Edmonton, Old Toronto, Ottawa, Mississauga, Quebec, Winnipeg, Halifax, Saskatoon, Burnaby, Hamilton, Victoria, Surrey, Halton Hills, London, Regina, Markham, Brampton, Vaughan, Kelowna, Laval, Southwestern Ontario, R, Canada Fortiv Technical Inc. Full timeOur client is looking for a talented Back-End Developer to help with growing needs. You will be developing systems and APIs that power a rich set of applications used by a large and passionate group of users daily. Your ability to create scalable, maintainable, and performant software is critical to the entire company's success. In your role, you will be...
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Senior Back-End Developer
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Toronto, Montreal, Calgary, Vancouver, Edmonton, Old Toronto, Ottawa, Mississauga, Quebec, Winnipeg, Halifax, Saskatoon, Burnaby, Hamilton, Surrey, Victoria, London, Halton Hills, Regina, Markham, Brampton, Vaughan, Kelowna, Laval, Southwestern Ontario, R, Canada Workleap Full timeSenior Back-End Developer - Platform Engineering (.NET) Company Description Workleap is a Montreal-based tech company on a mission to make work simpler. Since 2006, we’ve been building game-changing products that tackle HR and IT’s biggest challenges. Workleap operates two distinct product lines: The Workleap Platform, an AI-powered HR solution designed...
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Freelance Back-End Developer Developer
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Toronto, Montreal, Calgary, Vancouver, Edmonton, Old Toronto, Ottawa, Mississauga, Quebec, Winnipeg, Halifax, Saskatoon, Burnaby, Hamilton, Victoria, Surrey, Halton Hills, London, Regina, Markham, Brampton, Vaughan, Kelowna, Laval, Southwestern Ontario, R, Canada Twine Full timeJoin to apply for the Freelance Back-End Developer Developer role at Twine This role involves revising and localizing an existing PHP website to suit the needs of a specific local market. The project requires a developer who can work independently and remotely, ensuring the website is fully adapted for local users while maintaining high standards of quality...
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Back End Developer
3 weeks ago
Toronto, Montreal, Calgary, Vancouver, Edmonton, Old Toronto, Ottawa, Mississauga, Quebec, Winnipeg, Halifax, Saskatoon, Burnaby, Hamilton, Victoria, Surrey, Halton Hills, London, Regina, Markham, Brampton, Vaughan, Kelowna, Laval, Southwestern Ontario, R, Canada DataAnnotation Full timeWe are looking for a Back End Developer to join our team to train AI models. You will measure the progress of these AI chatbots, evaluate their logic, and solve problems to improve the quality of each model.To apply to this role, you will need to be proficient in either Python and/or JavaScript. Your role will require proficiency in at least one programming...
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Back-End Developer
2 weeks ago
Toronto, Montreal, Calgary, Vancouver, Edmonton, Old Toronto, Ottawa, Mississauga, Quebec, Winnipeg, Halifax, Saskatoon, Burnaby, Hamilton, Victoria, Surrey, London, Halton Hills, Regina, Markham, Brampton, Vaughan, Kelowna, Laval, Southwestern Ontario, R, Canada Braintrust Full timeOverviewJoin to apply for the Back-End Developer - AI Training role at Braintrust.This is a great opportunity to contribute to the development of new AI models using your domain expertise while supplementing your income and choosing flexible work arrangements.What You’ll Be Working OnOur client has partnered with organizations to train AI large language...
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Développeur Back-End Cloud
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Montreal, Toronto, Calgary, Vancouver, Edmonton, Old Toronto, Ottawa, Mississauga, Quebec, Winnipeg, Halifax, Saskatoon, Burnaby, Hamilton, Victoria, Surrey, Halton Hills, London, Regina, Markham, Brampton, Vaughan, Kelowna, Laval, Southwestern Ontario, R, Canada OPAL-RT TECHNOLOGIES Full timeJoin to apply for the Développeur Back-End Cloud / Cloud Back-End Developer role at OPAL-RT TECHNOLOGIES You will be tasked with designing and deploying a cloud platform that enables hundreds of users to automate their test scenarios for electrical grid simulations. You will be responsible for system architecture, including orchestration, results analysis,...
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Node.js Back-End Developer
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Toronto, Montreal, Calgary, Vancouver, Edmonton, Old Toronto, Ottawa, Mississauga, Quebec, Winnipeg, Halifax, Saskatoon, Burnaby, Hamilton, Victoria, Surrey, Halton Hills, London, Regina, Markham, Brampton, Vaughan, Kelowna, Laval, Southwestern Ontario, R, Canada Targeted Talent Full timeOverviewWe are looking for an experiencedNode.js Back-End Developer for our client. This is apermanent position that is completely remote! Our client is a fintech company based out of Vancouver.Qualifications1 - 3 + years of production experience working with Node.js, JavaScript / TypeScript and related frameworks (NestJS, Express)Experience working with...
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Senior Back-End Developer
3 weeks ago
Toronto, Montreal, Calgary, Vancouver, Edmonton, Old Toronto, Ottawa, Mississauga, Quebec, Winnipeg, Halifax, Saskatoon, Burnaby, Hamilton, Victoria, Surrey, Halton Hills, London, Regina, Markham, Brampton, Vaughan, Kelowna, Laval, Southwestern Ontario, R, Canada Python Software Foundation Full timeWe're looking for creative individuals who are ready to make an impact. If you're passionate about leveraging technology to help associations make our world better and excited to jump in with both feet, then we want to hear from you. Join us in revolutionizing the way associations foster knowledge sharing and growth.ResponsibilitiesAt first, you would...
Senior Back End Developer
4 weeks ago
At CoLab, we help mechanical engineering teams bring life-changing products to market years sooner.CoLab is a cloud based platform purpose built for fast, effective design review. Using CoLab, multiple engineers, designers, and other stakeholders can review designs together and build off one another's feedback. Engineers at companies like Ford, Komatsu, and Johnson Controls use CoLab to review designs faster, prevent mistakes, and build the next generation of innovative products.About the RoleAs a Senior Back End Developer (Software Developer IV) on our Build Scale Team, you are a technology advocate and a mentor within your team. You have an in-depth knowledge of the CoLab technology stack and how different components and services interact across the platform. You push for best practices and technical standards, and help guide the team technology direction towards simple, maintainable solutions.Our Ideal CandidateExperience working on SaaS, large-scale distributed systems and a consistent track record of building and maintaining highly scalable products would be considered an asset.Success will be measured by:On time delivery of new product features and changesPromotes clean and maintainable code and software development best practicesClear communication and technical leadership within teamSelf directed, takes ownership of tasks, stays apprised of broader team’s workMentoring and advising others on the teamJob ResponsibilitiesUnderstand complex customer problems and requirements and work in a team to build a solution that adds value for the customer and the product as a wholeCollaborate with other team members to design and plan complex scopes of work from product requirements and UI/UX designsDevelop, test, and ship critical user-facing features on a regular basisDevelop, test, and maintain robust and scalable APIs.Participate in code reviews and help your team deliver high-quality softwareAdvocate for all aspects of the user’s experience, with a focus on clarity and speedContribute to tech technology direction and best practicesMentor, support, and be an information source to junior developersQualifications5+ years of professional, hands-on development experienceProficient in Python and its libraries, with hands-on experience in designing, developing, and maintaining robust and scalable APIs.Hands-on experience with relational databases (e.g., PostgreSQL, MySQL), NoSQL databases (e.g.: DynamoDB), vector databases (e.g., OpenSearch) and querying frameworks/APIs (e.g.: SQLAlchemy).Experience writing robust automated tests, including unit, as well as end-to-end (E2E) tests using Cypress or Playwright.Experience with Git workflow (pull requests, code reviews)Experience working with Monitoring / Observability tool (e.g, DataDog, Retool)AI/ML Experience:Agent workflows: pydantic-aiExperience integrating and prompting large language models (LLMs) via APIs (e.g., OpenAI, Anthropic, Google Gemini)Experience working with ML services in the cloud infrastructure, e.g. Sagemaker, Bedrock, etc.Passion for working in teams with emphasis on respect and continuous improvementWillingness to raise your hand when you see something could be done / built betterNice-to-haveExperience with React and front-end tools such as Webpack, Vite, npm and ESLint would be considered an assetGraphQLRemote/Hybrid Work: Our main office location is in St. John’s, NL where we offer hybrid and remote opportunities. This role has the flexibility to work from anywhere within Canada.CoLab cares deeply about diversity, equity, and inclusion. We encourage you to apply even if you don’t meet every single qualification—your potential is what matters most to us.We are an equal opportunity employer. Diversity, equity, and inclusion are core to our culture and success. #J-18808-Ljbffr
