1w
Save
Mark Applied
Hide
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
1w
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
1w
Save
Mark Applied
Hide
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
6d
Save
Mark Applied
Hide
Senior Java Developer (Kafka/API)
Toronto or Quebec City
$90k-$140k/yr HybridFull Time
5+ YOE5+ years Java application development experience, REST APIs, Spring, Kafka, Docker/Kubernetes, DevOps tools (Jenkins, Artifactory, BitBucket, Gradle, Ansible), and strong problem-solving and communication skills.
Java, Docker, Kubernetes, Kafka, Kafka Streams, KSQL, Jenkins, Artifactory, BitBucket, Gradle, Continuous Delivery Director, Ansible, Open API, Swagger, Java Spring Boot, Docker containers, AWS, MongoDB, Postgres, Okta, WebSphere, DB2, Maven, SonarQube, oauth2
1mo
Save
Mark Applied
Hide
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
6d
Save
Mark Applied
Hide
Senior Java Developer (Kafka/API)
Toronto or Quebec
$90k-$140k/yr HybridFull Time
5+ YOE5+ years Java application development experience with REST APIs, Kafka, DevOps tools; strong problem-solving, experience with Kubernetes/Docker, cloud and databases; Reliability Status Clearance required; bilingual (fr) for Quebec roles.
Java, Docker, Kubernetes, Kafka, Jenkins, Artifactory, BitBucket, Gradle, Continuous Delivery Director, Ansible, WebSphere, DB2, Open API, Swagger, Spring Boot, MongoDB, Postgres, Okta, AWS, Maven, KSQL, SonarQube
1mo
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
2mo
Save
Mark Applied
Hide
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
2w
Save
Mark Applied
Hide
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
6d
Save
Mark Applied
Hide
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
1w
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
6d
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
3d
Save
Mark Applied
Hide
MarTech Developer
Toronto, Ontario, Canada
$90k-$120k/yr HybridFull Time
3+ YOE3+ years software development or MarTech experience; strong skills in JavaScript/TypeScript/Python/Java/C#; experience with Adobe martech platforms, APIs, webhooks, SQL, EMR not mentioned; strong communication and analytical skills.
JavaScript, TypeScript, Python, Java, C#, Adobe Experience Platform (AEP), Real-Time CDP (RT-CDP), Adobe Journey Optimizer (AJO), Customer Journey Analytics (CJA), Adobe Analytics, Adobe Campaign, Adobe Workfront, Salesforce Marketing Cloud, HubSpot, Marketo, Pardot, Braze, APIs, webhooks, HTTP, REST APIs, SQL
1mo
Save
Mark Applied
Hide
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
3w
Save
Mark Applied
Hide
Salesforce Developer FT
Toronto, Ontario, Canada
$65k-$80k/yr OnsiteFull Time
2+ YOE2+ years Salesforce development with Apex, Marketing Cloud and/or Data Cloud experience; API integration and sandbox-to-production deployment experience; strong stakeholder collaboration and Salesforce platform knowledge.
Salesforce, Apex, Flows, Marketing Cloud, Data Cloud, Genesys, API
1mo
Save
Mark Applied
Hide
.Net Developer
Toronto, Ontario, Canada
OnsiteFull Time
5+ YOEExperienced Full Stack .NET developer with 5+ years' experience in C#, .NET Framework/.NET Core, ASP.NET MVC, Web API, Angular/AngularJS, Microsoft SQL Server and Azure services; banking domain experience preferred.
C#, Microsoft .NET Framework, Microsoft .NET Core, ASP.NET MVC, Web API, Angular, AngularJS, Microsoft SQL Server, Azure services, AutoSys, Oracle Database, Tomcat, JBoss, Java, MQ
Explore Jobs