3d
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API Integration & Automation Developer
Welland, Ontario, Canada
$61k-$77k/yr HybridFull Time
Experience with REST and webhooks, PowerShell/Python/JavaScript/C#, JSON, Power Automate, OAuth/API Keys/JWT, basic SQL and reporting (SSRS, Power BI), AI tooling (Microsoft CoPilot) and integration debugging.
REST, webhooks, PowerShell, Python, JavaScript, C#, JSON, Power Automate, OAuth, API Keys, JWT, Microsoft CoPilot, SSRS, Power BI, SQL
1mo
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Senior API and Integration Engineer
Toronto or London
$103k-$153k/yr OnsiteFull Time
10+ YOE10+ years software engineering experience with 6+ years in APIs/integration; strong Azure, .NET/ASP.NET Core, RESTful API, security, CI/CD, and integration patterns experience.
.NET, .NET Core, ASP.NET Core, Azure Functions, Azure Service Bus, Azure SQL, Azure Key Vault, Azure API Management, Azure Application Insights, Redis, Tyk, F5, Ariel, Microsoft Dynamics CRM, JWT, OAuth, OIDC, CI/CD
2w
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API Quality Analyst (Quality Engineering) Lead
Toronto, Ontario, Canada
$80k-$130k/yr OnsiteFull Time
5+ YOE3+ Mgmt5+ years quality engineering with API automation, 3+ years leading QA/automation, proven API framework design, strong Java or Python skills, CI/CD integration, REST/SOAP/GraphQL testing, and stakeholder communication.
Rest Assured, Karate, Postman, Newman, JUnit, TestNG, Cucumber, Jenkins, GitHub Actions, Azure DevOps, GitLab CI, Git, Parasoft, Microsoft Azure, GraphQL, SQL, NoSQL
4d
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Senior API Platform Solutions Design Engineer
Toronto or Edmonton or Vancouver or Waterloo
$90k-$140k/yr HybridFull Time
8+ YOEBachelor's degree in CS/Engineering,8+ years Java experience,DevOps/Kubernetes/AWS experience,knowledge of APIs/Open API,CI/CD and automation,ability to consult and design platform solutions.
Java, Kubernetes, AWS, Apache Kafka, Confluent Platform, Python, JavaScript, Jenkins, Groovy, Spring Boot, AWS Lambda, AWS API Gateway, Open API, CI/CD Pipeline
4d
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Senior API Platform Solutions Design Engineer
Toronto or Edmonton or Vancouver or Waterloo
$90k-$140k/yr HybridFull Time
8+ YOEBachelor's in CS/Engineering,8+ years Java programming,experience with DevOps,Kubernetes and AWS,knowledge of REST/Open API and event-driven solutions,CI/CD and automation,strong communication and consulting skills.
Java, DevOps, Kubernetes, AWS, REST API, Open API, Apache Kafka, Confluent Platform, Python, JavaScript, Jenkins, Groovy, Spring Boot, AWS Lambda, AWS API Gateway, CI/CD, CDD Continuous Delivery Director
1mo
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Senior API Automation Test Engineer
Toronto, Ontario, Canada
$65k-$90k/yr HybridFull Time
6+ YOE6+ years SDET/automation experience, strong Java, 4+ years automation with Java/Selenium/JUnit/TestNG/Maven/Cucumber, 2+ years Rest Assured API automation, GraphQL exposure, SQL/database testing, Copilot/GenAI experience, CI/CD knowledge.
Java, TestNG, Selenium, Playwright, Rest Assured, GraphQL, JSON, XML, SQL, JUnit, Maven, Cucumber, Copilot, CI/CD, HTTP
1mo
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Senior API Automation Test Engineer
Toronto, Ontario, Canada
$65k-$90k/yr HybridFull Time
6+ YOE6+ years SDET/automation testing experience, strong Java proficiency, 4+ years automation with Java/TestNG/Selenium/JUnit/Maven/Cucumber, 2+ years API automation with Rest Assured, SQL and DB testing, CI/CD familiarity, exposure to GraphQL and GenAI (COPILOT).
Java, TestNG, Selenium, Playwright, Rest Assured, JUnit, Maven, Cucumber, GraphQL, JSON, XML, SQL, COPILOT
4d
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Senior Full Stack Java / API Developer (267646)
Toronto, Ontario, Canada
HybridFull Time
Design and develop secure, scalable microservices and APIs using Java, Spring Boot, and cloud platforms; participate in security assessments and collaborate with cross-functional teams.
OpenJDK 24, Spring Boot 3.4.5, APIGEE API Gateway, OAuth2, Confluent Kafka, Azure Key Vault, Cloudbees Jenkins, Azure Cloud, PCF, Microsoft SQL, JPA, Open Api/Swagger, Postman, IntelliJ, Service Now, JIRA, Bitbucket, Confluence, Splunk, Dynatrace
2mo
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Staff Engineer, API Design & Governance
Toronto, Ontario, Canada
HybridFull Time
10+ YOE10+ years in software; expert in at least one of Java, Python, Kotlin; strong API design, GraphQL, REST/RPC; scalable distributed systems; governance and standards.
Java, Python, Kotlin, GraphQL, REST, APIs, Distributed systems, SOLID design, Observability
1w
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QA Engineer, API Testing
Toronto, Ontario, Canada
$100k-$120k/yr HybridFull Time
1+ YOE1–2 years QA/test automation experience focused on API/back-end testing; experience with Karate or similar tools, REST, CI/CD, basic SQL, strong communication and collaboration.
Karate, REST Assured, Postman, OAuth 2.0, JWT, CI/CD, SQL, Java, Gherkin/BDD, Pact, Gatling, JMeter
1mo
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Back-End - .NET, API, AI Ready
Toronto, Ontario, Canada
$118k-$152k/yr OnsiteFull Time
5+ YOE5+ years software engineering experience with .NET/ASP.NET Core, REST API development, React, Microsoft SQL Server, Docker, CI/CD, and API security (JWT/OAuth2); strong collaboration and problem-solving skills.
.NET, ASP.NET Core, React, Microsoft SQL Server, Dapper, Entity Framework Core, JWT, OAuth2, Docker, CI/CD, Tailwind CSS, shadcn/ui, Microsoft Azure, Snowflake
2d
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Software Engineer, Metal Runtime (API & Abstractions)
Austin or Santa Clara or Toronto
$100k-$500k/yr HybridFull Time
Strong C/C++ low-level systems programming, concurrency and performance experience; API and abstraction design; collaboration with runtime, kernel, compiler teams.
C, C++
3w
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Inference ML API SDET
Sunnyvale or Toronto
HybridFull Time
5+ YOE5+ years QA/dev experience; strong automation and programming in Python, C++, or Go; experience with distributed systems, ML workloads, debugging, and leading cross-functional quality initiatives.
Python, C++, Go
3d
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Director RA OSD/API
Cincinnati or Mississauga or Toronto
$150k-$218k/yr RemoteFull Time
6+ YOEAdvanced degree+6 years or bachelor's+8 years in pharmaceutical/medical device regulatory affairs, knowledge of FDA/EMA/ICH, regulatory submissions experience, leadership and project management skills.
1mo
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Integration Lead
Toronto, Ontario, Canada
HybridFull Time
Proven experience owning customer-facing API integrations in regulated environments, deep REST API knowledge, API lifecycle management, strong technical communication, troubleshooting, and ability to build reusable integration assets.
API, REST APIs
1mo
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Salesforce Engineer
Eagan or Toronto
$76k-$141k/yr HybridFull Time
3+ YOE2+ years Salesforce experience; Conga CPQ; Sales Cloud; REST/SOAP APIs; LWC/Aura; Git; data tools; API integration.
Salesforce, Conga CPQ, APEX, Visualforce, Lightning, LWC, Aura, Process Automation, REST API, SOAP API, Git, Data Loader, Workbench, MuleSoft, Zapier
3mo
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AI Engineer
Toronto, Ontario, Canada
OnsiteFull Time
10+ YOESenior AI/ML platform engineer with 10+ years in software/infra and 5+ years in AI/ML infra, API platform eng, or large-scale distributed systems; strong LLM API integration and production deployment; API design and gateway engineering; experience with vector databases.
REST API, OAuth2, JWT, API gateway, LLM API integration, Vector databases, Pinecone, Weaviate, pgvector, Chroma, Anthropic Claude, OpenAI, Azure OpenAI, Databricks, MLflow, BentoML
3mo
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Integration Technical Lead
Toronto or Vancouver
$113k-$140k/yr HybridFull Time
12+ YOELead design and implementation of enterprise integration solutions; API/backend expertise; 12+ years’ backend/API experience; mentor engineers; hybrid/BC and Ontario work setup.
API design, Backend development, MuleSoft, Azure, Azure Integration Services, Event-driven architectures, Security
1mo
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Technical Product Manager, AI Agent Platform
Toronto or Minneapolis or Canada or North America or Europe or Asia or Africa or Australia
$106k-$165k/yr OnsiteFull Time
Product management experience in SaaS/enterprise software; experience with platform products, APIs, LLMs/MCP and AI agent frameworks; prototyping and API testing; strong collaboration and communication skills.
LLMs, MCP, APIs, SDKs, Dayforce
1mo
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Solutions Engineer
Toronto, Ontario, Canada
OnsiteFull Time
2+ YOE2+ years in solutions engineering/technical consulting with SaaS or AI products; experience with API integrations, reading API docs, debugging JSON, basic SQL, and customer-facing technical work.
Mosaic AI, API, JSON, SQL, Salesforce, Zendesk, Intercom, Atlassian, Gong