735 api developer jobs at 302 companies in Newfane, NY
2w
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Staff API Engineer
Toronto, Ontario, Canada
$88k-$132k/yr HybridFull Time
Experience building and operating developer tooling and services; working knowledge of OpenAPI and auth concepts; proficiency in Go or Python; IaC and CI/CD experience; bachelor\u000b's in CS/CE or equivalent.
OpenAPI, OAuth2, OIDC, MCP, Docusaurus, Backstage, Confluence, Apigee, ALB, Kubernetes, Envoy, Terraform, Go, Python, CI/CD, Linux, Git
2w
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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
2mo
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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
5d
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API Platform Operations Engineer
Toronto or Waterloo
$65k-$105k/yr HybridFull Time
3+ YOEBachelor’s degree in computer science, engineering, or related field; 3–6 years in IT, including 2+ years in application support and operations and 1–2 years in Java development. Requires DevOps, Docker, Kubernetes, REST APIs, and CI/CD.
Java, Kafka, Docker, Kubernetes, REST API, Open API Spec, RAML, AWS, AWS EKS, AWS EC2, Confluent, OAuth, OpenID, AWS Lambda, AWS API Gateway, Kustomize, Helm Charts, Jenkins, Ansible, Continuous Delivery Director (CDD), Spring Boot
1mo
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Backend / API Engineer, Metronome (Billing)
Canada or Toronto
$135k-$258k/yr RemoteFull Time
2+ YOE2+ years backend development; strong coding in Go/Java/C/C++; experience with large-scale distributed systems; collaboration and autonomy; mentorship ability.
Go, Java, C, C++
5d
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API Platform Operations Engineer
Toronto or Waterloo or Canada
$65k-$105k/yr HybridFull Time
3+ YOEBachelor’s degree and 3–6 years in IT, including API operations and support, Java development, CI/CD, DevOps, Docker, Kubernetes, and REST API standards; Reliability Security Clearance required.
Java, Kafka, Docker, Kubernetes, Open API Spec, RAML, AWS, EKS, EC2, Confluent, OAuth, OpenID, AWS Lambda, AWS API Gateway, Kustomize, Helm Charts, Jenkins, Ansible, Continuous Delivery Director (CDD), Spring Boot
1w
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Senior API Automation Test Engineer
Toronto, Ontario, Canada
$65k-$90k/yr HybridFull Time
6+ YOE6+ years SDET experience, strong Java and automation skills, 4+ years Java-based automation (Selenium,Junit,TestNG,Maven,Cucumber),2+ years API automation with Rest Assured, SQL and CI/CD experience.
Java, TestNG, Selenium, Playwright, Rest Assured, GraphQL, COPILOT, Maven, Junit, Cucumber, SQL, CI/CD
2w
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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
5d
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API Platform Operations Engineer
Toronto or Waterloo
$65k-$105k/yr HybridFull Time
3+ YOEBachelor’s degree in Computer Science, Engineering, or related area; 3–6 years in related IT, including 2+ years in application support and operations and 1–2 years of Java development. Requires Reliability Security Clearance.
Java, Docker, Kubernetes, REST API, Open API Spec, RAML, AWS, Amazon EKS, Amazon EC2, Kafka, Confluent, OAuth, OpenID, AWS Lambda, AWS API Gateway, Kustomize, Helm Charts, Jenkins, Ansible, Continuous Delivery Director (CDD), Spring Boot
1mo
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Senior Java Developer (API)
Toronto, Ontario, Canada
$95k-$145k/yr HybridFull Time
Extensive Java development experience, API and RESTful design, ETL and data integration, relational databases and SQL, Git, CI/CD; bachelor's degree in CS/Engineering/IT or equivalent.
Databricks, Java, RESTful, Git, Spring Boot, AWS, Azure, GCP, Kubernetes, OpenShift, Kafka, MQ, RabbitMQ, CI/CD
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
3mo
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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
3w
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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
2w
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Software Engineer - API
Toronto, Ontario, Canada
$70k-$115k/yr HybridFull Time
3+ YOE3+ years OOP experience (preferably Java), knowledge of J2EE, REST, Oracle ADF BC REST or Jersey, and SQL/PLSQL; strong communication and problem-solving skills.
Java, J2EE, Oracle ADF BC REST, Jersey, SQL, PLSQL
2w
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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++
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
1w
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Backend Engineer – Python (API & Platform Engineering)
Toronto, Ontario, Canada
$55-$58/hr OnsiteContract
5+ YOE5+ years backend experience, strong Python, REST/OpenAPI, SQL/NoSQL, cloud (AWS/Azure/GCP), Git, CI/CD; BS/MS in CS or related.
Python, JSON, OpenAPI, SQL, NoSQL, AWS, Azure, GCP, Git, Docker, Kubernetes
2mo
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Android Developer
Toronto, Ontario, Canada
HybridFull Time
Android development experience with Kotlin; familiarity with cross‑platform tech (Kotlin Multiplatform or React Native); Kotlin and native Android development; knowledge of APIs and third-party integrations.
Kotlin, Kotlin Multiplatform, React Native, Swift, Android, Bitbucket, Appium, CircleCI, Firebase, APIs
1mo
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Software Developer
Toronto or Canada
$101k-$118k/yr RemoteFull Time
2+ YOE2+ years Salesforce development (Apex, APIs), experience with Java and web/REST services, Salesforce platform and Marketo familiarity, strong communication and leadership skills, university degree preferred, Canada work authorization required.
Salesforce, LWC, Apex, Visualforce, Einstein Analytics, Tableau CRM, Marketo, Java, APIs, Web Services Development, REST Web Services, Salesforce Service Cloud, Salesforce Financial Cloud
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