Do you have extensive experience in designing, building, and consuming REST APIs, including experience with API documentation and testing? Do you have knowledge of data transformation techniques, such as mapping and normalization, and experience using them in a Spring Integration context? If so, this would be a great opportunity for you!
...
Our client is looking for a Senior Software Developer API for a 12 month contract in Toronto.
This is an onsite role.
Advantages
• Earn a competitive rate within the industry.
• Location: working 7.25 hours per calendar day, sometime between 8:00 AM and 5:00 PM (excluding breaks), Monday to Friday inclusive.
• Potential for extension.
Responsibilities
• Detailed design and specification documents for RESTful APIs, including endpoints, request/response models, authentication, and error handling.
• Clean, scalable, and secure REST APIs built using Java and Spring Boot, adhering to best practices and company standards.
• Modular and decoupled microservices, designed and deployed independently, with clear inter-service communication protocols.
• Using APIs to develop application based on the business requirement to transform and route data.
• Comprehensive test coverage using tools like JUnit, Mockito, or Test Containers to ensure code reliability and prevent regressions.
• Efficient relational database schemas designed and implemented to support API data storage and retrieval.
• Profiled and optimized APIs for response time, memory usage, and throughput, ensuring high performance under load.
• Secure API calls with proper authentication (e.g., OAuth2, JWT), authorization, input validation, and protection against common vulnerabilities (OWASP).
• Dockized applications with configuration files, docker-compose scripts, and Kubernetes manifests (if applicable) for smooth deployment.
• Integrated monitoring (e.g., Prometheus, Grafana) and logging (e.g., ELK stack, Logstash, or Splunk) for operational visibility.
• Produce clear documentation for developed systems such as design, deployment instructions, and operational guides.
• Regular code reviews, feedback sessions, and mentorship to junior developers, ensuring code quality and knowledge sharing.
• Weekly or sprint-based status updates on development progress, blockers, and delivered functionalities.
• Timely resolution of production issues, regression fixes, and performance improvements based on user feedback and testing.
• Available for any on-call on weekend for production issues.
Qualifications
Must haves:
• Extensive experience in designing, building, and consuming REST APIs, including experience with API documentation and testing.
• In-depth knowledge of integration patterns and best practices, including experience designing and building integration solutions using Spring Integration
• In-depth knowledge of microservice architecture and experience building scalable, highly available systems using various Azure Services.
• Hands-On experience in messaging queuing and event driven architecture.
• Strong skills in SQL and experience working with relational databases, such as SQL Server, or Oracle.
• Knowledge on Integration with Oauth2, JWT, SAML, etc.
• Knowledge of data transformation techniques, such as mapping and normalization, and experience using them in a Spring Integration context.
Nice to have:
• Knowledge and experience in Criminal Justice Business and System
• Experience with asynchronous communication, multi-threading.
• Ability to transform data between different formats (JSON, XML, CSV).
Desired Skills and Experience
Strong proficiency in object-oriented programming and functional programming with modern Java features.
Strong expertise in Java and the Java development ecosystem, including experience with Spring Boot.
In-depth knowledge of microservice architecture and experience building scalable, highly available systems.
Expertise in designing, building, and consuming REST APIs; knowledge of HTTP methods, status codes, and REST best practices
In-depth knowledge of integration patterns and best practices, including experience designing and building integration solutions using Spring Integration
Experience with enterprise integration technologies, such as JMS, AMQP, or REST, and an understanding of how to use them in a Spring Integration context.
Strong knowledge of XML and experience working with XML-based integration solutions, such as XSLT and XPath.
Knowledge of data transformation techniques, such as mapping and normalization, and experience using them in a Spring Integration context.
Experience with message-oriented middleware and enterprise service buses, such as Azure Service Bus
Experience on Event Driven architecture, experience on Azure Event Hub, etc.
Strong skills in SQL and experience working with relational databases, such as SQL Server, or Oracle.
Understanding of security best practices and experience implementing authentication, authorization, and encryption.
Strong experience with writing automated tests, including unit, API test, and a deep understanding of the testing process.
Familiarity with Kubernetes, Helm, or other container orchestration tools.
Familiarity with Agile software development methodologies, such as Scrum or Kanban, and experience participating in sprint planning and retrospectives.
Excellent communication skills, both written and verbal, and the ability to work effectively with both technical and non-technical stakeholders.
A passion for staying up-to-date with the latest industry trends and technologies, and a desire to continuously learn and improve your skills.
Strong problem-solving and debugging skills, and experience diagnosing and resolving complex issues.
A track record of delivering high-quality, robust, and scalable solutions in a fast-paced, deadline-driven environment.
Strong analytical and troubleshooting abilities for complex systems.
Clear verbal and written communication for technical and non-technical stakeholders..
Capable of mentoring junior developers and contributing to architectural decisions.
Ability to prioritize tasks, manage deadlines, and handle multiple responsibilities.
Summary
If you are interested in the Senior Software Developer API role in Toronto, please apply online at www.randstad.ca. Qualified candidates will be contacted.
Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.
Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to accessibility@randstad.ca to ensure their ability to fully participate in the interview process.
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Do you have extensive experience in designing, building, and consuming REST APIs, including experience with API documentation and testing? Do you have knowledge of data transformation techniques, such as mapping and normalization, and experience using them in a Spring Integration context? If so, this would be a great opportunity for you!
Our client is looking for a Senior Software Developer API for a 12 month contract in Toronto.
This is an onsite role.
Advantages
• Earn a competitive rate within the industry.
• Location: working 7.25 hours per calendar day, sometime between 8:00 AM and 5:00 PM (excluding breaks), Monday to Friday inclusive.
• Potential for extension.
Responsibilities
• Detailed design and specification documents for RESTful APIs, including endpoints, request/response models, authentication, and error handling.
• Clean, scalable, and secure REST APIs built using Java and Spring Boot, adhering to best practices and company standards.
• Modular and decoupled microservices, designed and deployed independently, with clear inter-service communication protocols.
...
• Using APIs to develop application based on the business requirement to transform and route data.
• Comprehensive test coverage using tools like JUnit, Mockito, or Test Containers to ensure code reliability and prevent regressions.
• Efficient relational database schemas designed and implemented to support API data storage and retrieval.
• Profiled and optimized APIs for response time, memory usage, and throughput, ensuring high performance under load.
• Secure API calls with proper authentication (e.g., OAuth2, JWT), authorization, input validation, and protection against common vulnerabilities (OWASP).
• Dockized applications with configuration files, docker-compose scripts, and Kubernetes manifests (if applicable) for smooth deployment.
• Integrated monitoring (e.g., Prometheus, Grafana) and logging (e.g., ELK stack, Logstash, or Splunk) for operational visibility.
• Produce clear documentation for developed systems such as design, deployment instructions, and operational guides.
• Regular code reviews, feedback sessions, and mentorship to junior developers, ensuring code quality and knowledge sharing.
• Weekly or sprint-based status updates on development progress, blockers, and delivered functionalities.
• Timely resolution of production issues, regression fixes, and performance improvements based on user feedback and testing.
• Available for any on-call on weekend for production issues.
Qualifications
Must haves:
• Extensive experience in designing, building, and consuming REST APIs, including experience with API documentation and testing.
• In-depth knowledge of integration patterns and best practices, including experience designing and building integration solutions using Spring Integration
• In-depth knowledge of microservice architecture and experience building scalable, highly available systems using various Azure Services.
• Hands-On experience in messaging queuing and event driven architecture.
• Strong skills in SQL and experience working with relational databases, such as SQL Server, or Oracle.
• Knowledge on Integration with Oauth2, JWT, SAML, etc.
• Knowledge of data transformation techniques, such as mapping and normalization, and experience using them in a Spring Integration context.
Nice to have:
• Knowledge and experience in Criminal Justice Business and System
• Experience with asynchronous communication, multi-threading.
• Ability to transform data between different formats (JSON, XML, CSV).
Desired Skills and Experience
Strong proficiency in object-oriented programming and functional programming with modern Java features.
Strong expertise in Java and the Java development ecosystem, including experience with Spring Boot.
In-depth knowledge of microservice architecture and experience building scalable, highly available systems.
Expertise in designing, building, and consuming REST APIs; knowledge of HTTP methods, status codes, and REST best practices
In-depth knowledge of integration patterns and best practices, including experience designing and building integration solutions using Spring Integration
Experience with enterprise integration technologies, such as JMS, AMQP, or REST, and an understanding of how to use them in a Spring Integration context.
Strong knowledge of XML and experience working with XML-based integration solutions, such as XSLT and XPath.
Knowledge of data transformation techniques, such as mapping and normalization, and experience using them in a Spring Integration context.
Experience with message-oriented middleware and enterprise service buses, such as Azure Service Bus
Experience on Event Driven architecture, experience on Azure Event Hub, etc.
Strong skills in SQL and experience working with relational databases, such as SQL Server, or Oracle.
Understanding of security best practices and experience implementing authentication, authorization, and encryption.
Strong experience with writing automated tests, including unit, API test, and a deep understanding of the testing process.
Familiarity with Kubernetes, Helm, or other container orchestration tools.
Familiarity with Agile software development methodologies, such as Scrum or Kanban, and experience participating in sprint planning and retrospectives.
Excellent communication skills, both written and verbal, and the ability to work effectively with both technical and non-technical stakeholders.
A passion for staying up-to-date with the latest industry trends and technologies, and a desire to continuously learn and improve your skills.
Strong problem-solving and debugging skills, and experience diagnosing and resolving complex issues.
A track record of delivering high-quality, robust, and scalable solutions in a fast-paced, deadline-driven environment.
Strong analytical and troubleshooting abilities for complex systems.
Clear verbal and written communication for technical and non-technical stakeholders..
Capable of mentoring junior developers and contributing to architectural decisions.
Ability to prioritize tasks, manage deadlines, and handle multiple responsibilities.
Summary
If you are interested in the Senior Software Developer API role in Toronto, please apply online at www.randstad.ca. Qualified candidates will be contacted.
Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.
Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to accessibility@randstad.ca to ensure their ability to fully participate in the interview process.
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