Backend Javascript Engineer Jobs in Waterloo, Canada

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Backend Javascript Engineer

Company Description Basis is a software engineering and consulting agency dedicated to delivering innovative digital solutions for companies of all sizes. Our team, with decades of combined experience, leverages cutting-edge technologies and deep software development expertise to transform business ...

Backend Engineer

About The Role We’re hiring a Backend Engineer to work on the core platform that powers ThreatAware — and this is one of the most exciting times to join. We’re building AI-powered capabilities on top of six years of real cyber asset data, and you’ll be right in the middle of it. Your code will po ...

Backend Engineer

About The Role We’re hiring a Backend Engineer to work on the core platform that powers ThreatAware — and this is one of the most exciting times to join. We’re building AI-powered capabilities on top of six years of real cyber asset data, and you’ll be right in the middle of it. Your code will po ...

Backend Engineer

About The Role We’re hiring a Backend Engineer to work on the core platform that powers ThreatAware — and this is one of the most exciting times to join. We’re building AI-powered capabilities on top of six years of real cyber asset data, and you’ll be right in the middle of it. Your code wil ...

Remote JavaScript Engineer AI Trainer

As an hourly paid, fully remote JavaScript Engineer for AI Data Training, you will review complex AI-generated code and explanations or generate new ones, evaluate the reasoning quality and step-by-step problem-solving, and provide expert feedback that helps models produce answers that are accurate, logical, and ...

Remote JavaScript Engineer AI Trainer

About Us Mafna Air Technologies Inc. is a Canadian company and one of the leaders in providing custom Air Handling Solutions and HVAC Equipment across the US, Canada, and international markets. For over 20 years, Mafna has delivered innovative solutions to a wide range of industries and Governmen ...

Remote JavaScript Engineer AI Trainer

About Us Mafna Air Technologies Inc. is a Canadian company and one of the leaders in providing custom Air Handling Solutions and HVAC Equipment across the US, Canada, and international markets. For over 20 years, Mafna has delivered innovative solutions to a wide range of industries and Governmen ...

Senior Backend Engineer

About Faire Faire is an online wholesale marketplace built on the belief that the future is local — independent retailers around the globe are doing more revenue than Walmart and Amazon combined, but individually, they are small compared to these massive entities. At Faire, we’re using the power ...

Senior Backend Engineer

About Faire Faire is an online wholesale marketplace built on the belief that the future is local — independent retailers around the globe are doing more revenue than Walmart and Amazon combined, but individually, they are small compared to these massive entities. At Faire, we’re using the power ...

Senior Backend Engineer

About Faire Faire is an online wholesale marketplace built on the belief that the future is local — independent retailers around the globe are doing more revenue than Walmart and Amazon combined, but individually, they are small compared to these massive entities. At Faire, we’re using the p ...

JavaScript Tutor

About The Job The Varsity Tutors Live Learning Platform has thousands of students looking for online JavaScript tutors nationally. As a tutor on the Varsity Tutors Platform, you'll have the flexibility to set your own schedule, earn competitive rates, and make a real impact on students' academic ...

JavaScript Integration Engineer: Customer Data (Remote)

About UsConstructor is the next-generation platform for search and discovery in ecommerce, built to explicitly optimize for metrics like revenue, conversion rate, and profit. Our search engine is entirely invented in-house utilizing transformers and generative LLMs, and we use its core and personaliz ...

Remote JavaScript Engineer & AI Solutions Developer

A leading Canadian technology company in Cambridge seeks a talented Programming & Application Developer to enhance its engineering team. The role involves developing and maintaining applications using technologies like Node.js and Python. Candidates should possess a minimum of 2 years of relevant experience and ...

Remote JavaScript Engineer & AI Solutions Developer

A leading Canadian technology company in Cambridge seeks a talented Programming & Application Developer to enhance its engineering team. The role involves developing and maintaining applications using technologies like Node.js and Python. Candidates should possess a minimum of 2 years of relevant experience and ...

Sr. Backend Java Engineer

Required Qualifications 5+ years of experience in backend or server‑side development Strong experience with Java and Spring Boot Hands-on experience using AI tools such as Claude or similar LLM-based assistants to analyze. ...

Senior SW Engineer, Backend

As a Senior Backend Engineer, you will play a critical role in architecting and developing the backbone of our software platform. Your mission will be to build robust, scalable, and maintainable backend systems that power our decarbonization platform. Collaborating closely with our engineering, product, and d ...

Senior SW Engineer, Backend

As a Senior Backend Engineer, you will play a critical role in architecting and developing the backbone of our software platform. Your mission will be to build robust, scalable, and maintainable backend systems that power our decarbonization platform. Collaborating closely with our engineering, product, and d ...

Senior SW Engineer, Backend

As a Senior Backend Engineer, you will play a critical role in architecting and developing the backbone of our software platform. Your mission will be to build robust, scalable, and maintainable backend systems that power our decarbonization platform. Collaborating closely with our engineering, product, and d ...

Backend Engineer Identity Decisioning (Remote)

A fintech company is seeking a Software Engineer II (Backend) to join their Identity Engineering team. In this role, you'll design and develop backend systems using Python or Kotlin and work on a variety of projects ensuring timely delivery. The position offers flexibility with remote work options and a salary r ...

Backend Engineer, AI Agents Remote

A financial technology company is looking for a Software Engineer II to join their remote team in Canada. This role involves developing APIs, shipping web applications, and collaborating with product management to deliver projects successfully. Candidates should have over 1.5 years of experience with frontend fr ...

Staff Software Engineer, Backend (Streaming)

Staff Software Engineer, Backend (Streaming) Join to apply for the Staff Software Engineer, Backend (Streaming) role at Affirm Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees ...

Backend Engineer Identity Decisioning (Remote)

A fintech company is seeking a Software Engineer II (Backend) to join their Identity Engineering team. In this role, you'll design and develop backend systems using Python or Kotlin and work on a variety of projects ensuring timely delivery. The position offers flexibility with remote work options and a salary r ...

Staff Software Engineer, Backend (Streaming)

Staff Software Engineer, Backend (Streaming) Join to apply for the Staff Software Engineer, Backend (Streaming) role at Affirm Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees ...

Backend Engineer, AI Agents Remote

A financial technology company is looking for a Software Engineer II to join their remote team in Canada. This role involves developing APIs, shipping web applications, and collaborating with product management to deliver projects successfully. Candidates should have over 1.5 years of experience with frontend fr ...

Backend Engineer, AI Agents Remote

A financial technology company is looking for a Software Engineer II to join their remote team in Canada. This role involves developing APIs, shipping web applications, and collaborating with product management to deliver projects successfully. Candidates should have over 1.5 years of experience with frontend fr ...

Backend Engineer Identity Decisioning (Remote)

A fintech company is seeking a Software Engineer II (Backend) to join their Identity Engineering team. In this role, you'll design and develop backend systems using Python or Kotlin and work on a variety of projects ensuring timely delivery. The position offers flexibility with remote work options and a salary r ...

Staff Software Engineer, Backend (Streaming)

Staff Software Engineer, Backend (Streaming) Join to apply for the Staff Software Engineer, Backend (Streaming) role at Affirm Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees ...

Full Stack Software Engineer (Node.js, JavaScript, and TypeScript)

Full Stack Software Engineer (Node.js, JavaScript, and TypeScript) Client: Mortgage Finance Company. Duration: Fulltime, Perm Location: Waterloo, ON (Hybrid: 2-3 days in office) Role Description: We are lo ...

Senior Growth Engineer (Frontend or Backend)

About Faire Faire is an online wholesale marketplace built on the belief that the future is local — independent retailers around the globe are doing more revenue than Walmart and Amazon combined, but individually, they are small compared to these massive entities. At Faire, we're using the power ...

Software Engineer II, Backend (AI Agents)

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. We're looking for a Software Engineer II to join the AI Agents engineering team within the Servicing Engineering organization. ...

Senior Backend Engineer Scalable Python Systems

A seed-stage startup is looking for a Senior Backend Engineer to architect and develop robust, scalable backend systems for a decarbonization platform. The ideal candidate will have 5-8+ years of experience, particularly in technologies like Django and Python, with a focus on producing maintainable and high-qual ...

Senior Backend Engineer Scalable Python Systems

A seed-stage startup is looking for a Senior Backend Engineer to architect and develop robust, scalable backend systems for a decarbonization platform. The ideal candidate will have 5-8+ years of experience, particularly in technologies like Django and Python, with a focus on producing maintainable and high-qual ...

Software Engineer II, Backend (Consumer Authentication)

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The Consumer Authentication Engineering team is responsible for building and operating secure, seamless account creation and a ...

Software Engineer II, Backend (Identity Decisioning)

Software Engineer II, Backend (Identity Decisioning) Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. Identity Engineering owns the systems responsible for onboardin ...

Software Engineer II, Backend (Identity Decisioning)

Software Engineer II, Backend (Identity Decisioning) Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. Identity Engineering owns the systems responsible for onboardin ...

Software Engineer II, Backend (Consumer Authentication)

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The Consumer Authentication Engineering team is responsible for building and operating secure, seamless account creation and a ...

Senior Growth Engineer (Frontend or Backend)

About Faire Faire is an online wholesale marketplace built on the belief that the future is local — independent retailers around the globe are doing more revenue than Walmart and Amazon combined, but individually, they are small compared to these massive entities. At Faire, we're using the power ...

Software Engineer II, Backend (AI Agents)

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. We're looking for a Software Engineer II to join the AI Agents engineering team within the Servicing Engineering organization. ...

Senior Backend Engineer, Streaming Infrastructure (Remote)

A leading fintech company is seeking a skilled backend engineer to design and implement scalable data infrastructure. The ideal candidate will have 4+ years of experience with backend systems using Python or Kotlin, and a solid understanding of stream processing technologies. The role supports remote work across ...

Senior Software Engineer, Backend (Streaming Infrastructure)

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The Streaming team at affirm forms the backbone of several online and offline workloads at affirm and drives the strategy for ...

Senior Software Engineer, Backend (Merchant Advocacy)

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The Merchant & Partner Lifecycle (M&PL) team is at the forefront of Affirm’s architectural transformation. We are addressing cr ...

Senior Software Engineer, Backend (PMI Integrations)

Overview Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The Partner Merchant Interface (PMI) team builds the APIs and solutions that power Affirm’s integrations with ...

Senior Backend Engineer PMI Integrations (Remote)

A leading fintech company is seeking a Software Engineer with over 5 years of experience to design and develop backend systems. You will work collaboratively on the entire API lifecycle while supporting your team's operations. Proficiency in Python or Kotlin, and familiarity with AWS, MySQL, and Kubernetes, is r ...

Software Engineer II, Backend (Consumer Authentication)

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The Consumer Authentication Engineering team is responsible for building and operating secure, seamless account creation a ...

Software Engineer II, Backend (AI Agents)

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. We're looking for a Software Engineer II to join the AI Agents engineering team within the Servicing Engineering organizat ...

Senior Growth Engineer (Frontend or Backend)

About Faire Faire is an online wholesale marketplace built on the belief that the future is local — independent retailers around the globe are doing more revenue than Walmart and Amazon combined, but individually, they are small compared to these massive entities. At Faire, we're using the po ...

Senior Backend Engineer Scalable Python Systems

A seed-stage startup is looking for a Senior Backend Engineer to architect and develop robust, scalable backend systems for a decarbonization platform. The ideal candidate will have 5-8+ years of experience, particularly in technologies like Django and Python, with a focus on producing maintainable and high-qual ...

Software Engineer II, Backend (Identity Decisioning)

Software Engineer II, Backend (Identity Decisioning) Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. Identity Engineering owns the systems responsible for o ...

Senior Backend Engineer, Streaming Infrastructure (Remote)

A leading fintech company is seeking a skilled backend engineer to design and implement scalable data infrastructure. The ideal candidate will have 4+ years of experience with backend systems using Python or Kotlin, and a solid understanding of stream processing technologies. The role supports remote work across ...

Senior Backend Engineer PMI Integrations (Remote)

A leading fintech company is seeking a Software Engineer with over 5 years of experience to design and develop backend systems. You will work collaboratively on the entire API lifecycle while supporting your team's operations. Proficiency in Python or Kotlin, and familiarity with AWS, MySQL, and Kubernetes, is r ...

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    Backend Javascript Engineer Jobs in Waterloo Job Search Guide, Trends and Insights