Senior API Developer: Microservices, Azure & REST
Source Code
Source Code in Downtown Toronto is seeking a Sr. Software Developer - API to design, build and maintain API-driven systems. You will translate functional specs into robust, tested APIs and contribute to the architecture of scalable microservices on Azure.
The role requires 8+ years of API development experience, strong REST API design, and hands-on knowledge of Spring Integration, OAuth2/JWT/SAML, and relational databases. On-site hybrid work is supported for project needs.
#J-18808-Ljbffr$85k - $105k per year
...we look to strengthen our Digital Solutions practice with a Senior .NET / Azure Developer with strong leadership capabilities to support upcoming project... ...Design and develop enterprise-grade applications, APIs, and integrations using .NET and Azure Translate solution...SeniorFull timeWork at officeRemote workFlexible hours$86.9 - $104.28 per hour
...RQ11442 - Software Developer - API - Senior Duration: 1 Year (254 Business Days) + 1 Possible Extension Location: 5 days onsite at 222... ...with Node.js and Next.js ~5+ Experience building and testing RESTful APIs ~2-3+ years of Multi-agent (Agentic AI), LLMops, MCP,...SeniorFull time$86.9 - $104.28 per hour
...RQ10573 - Software Developer - API - Senior ONSITE - Toronto ( 21 College Street) 11+ months Contract (250 Business Days)+ 6 Months Possible Extension... ...Extensive experience in designing, building, and consuming REST APIs, including API documentation and testing, as well as in-...SeniorFull timeContract work- ...institution is seeking skilled Developers to design, build, test, and... ...Responsibilities Develop, enhance, and maintain reliable... ...technical planning. Develop APIs, services, integrations, and... ...Knowledge of cloud platforms, microservices, containers, or event-driven...SuggestedFull time
$118k - $152k per year
...The Role Capco is seeking a Senior Software Engineer with strong... ...in C#, .NET, ASP.NET Core, and API development to join our Technology... ...In this role, you will design, develop, modernize, and maintain... ...enhance, and integrate secure RESTful APIs, including authentication,...SeniorFull timeInternshipImmediate start- ...Collaborate closely with software developers, data engineers, DevOps, and... .... Develop and enhance APIs, platform features, and tools... ...Experience building APIs and services (REST) to support data and AI... ...Have Skills! Experience with microservices architecture. Experience...SeniorHourly payPermanent employmentFull timeInternshipWork at office
- ...Works with QA analysts and software developers to find solutions General Skills... ...(for UI testing) Postman, REST Assured, or SoapUI (for API testing) JMeter or Gatling (for performance... ...and CI/CD tools like Git, Jenkins, Azure DevOps, or GitLab CI . Solid understanding...SeniorFull time
- We are seeking an experienced Databricks developer with strong expertise in Azure Databricks, Apache Spark, and modern data engineering practices. The ideal candidate will be responsible for designing, developing, and optimising scalable data pipelines, data lakehouse...Full time
- ...programs; performing testing for developed applications. Reviewing,... ...need to succeed? Must have: API Development language and frameworks... ...APIs Experience building REST API, hands on experience with API... ...Apigee Relational database (Azure SQL, for example) and/or...SeniorFull time
- ...tested applications. This includes developing detailed programming... ...front-end & back-end integration, API development Excellent analytical... ...the design and construction of REST API services Knowledge and experience... .... Experience / knowledge of Azure DevOps, JIRA, agile/scrum...SeniorFull time
- ...Position: Senior ETL Developer Location: Toronto, ON (onsite) Job ID#:... ...Microsoft technologies including: Azure Data Factory Azure SQL Database... ...solutions. Experience with C# development, APIs, and application functions. Experience...SeniorFull time
- ...Role: Senior Ruby on Rails developer - Rest API Location: Toronto ON (Hybrid 4 Days/Week Onsite) Duration: 612 Months (Contract) Job Summary We are looking for a Senior Software Engineer (Ruby on Rails) to join a high-performing engineering team building...SeniorFull timeContract work
- ...Veriday is seeking an experienced Senior Microsoft Dynamics CRM Developer / Technical Architect to join our client... .../TypeScript, and supported Microsoft APIs. Build and enhance model-driven... ...CRM and enterprise applications using REST APIs, Dataverse Web API, and relevant...SeniorFull timeContract workWork at office3 days per week
- ...applications. This includes: developing detailed programming... ...hands-on experience of RestAPI, RESTful WebServices ~ Solid Understanding... ...Knowledge and experience of microservice architecture as well as a... ...~ Experience using Azure DevOps Technical Skills...SeniorFull timeManual labor
$125k - $175k per year
...seeking to recruit the best and the brightest talents. The Senior AI Software Developer will design, build, and deliver the firm’s AI applications,... ...designing production applications and integrations using REST APIs, OAuth 2.0/OpenID Connect, SQL, vector stores, object...SeniorFull timeWork at office- ...Hands-on expertise in Spring Boot, Java, REST API development, and Kafka-based event-driven... ...architectures. ● Strong understanding of microservices lifecycle: design, development,... ...and deployment in cloud environments (AWS, Azure, GCP). ● Experience in developing and optimizing...SeniorContract work
$88.54 - $106.25 per hour
...RQ11605 - Software Developer - Senior Duration: 11 Months (250 Business Days) 1 Possible... ...develop and administer CI/CD pipeline using Azure DevOps to support continuous... ...automation solution using Containerized Microservices JEE Spring Boot API Azure Logic Apps Power...SeniorFull time- ...a highly skilled Enterprise Developer to join our enterprise architecture... ...proficient in creating new microservices, as well as refactoring,... ...is essential. THIS IS A SENIOR HANDS ON DEVELOPER ROLE... ...in designing and developing RESTful APIs. Experience with microservices...SeniorFull timeShift work
- ...Object -Relational Mapping data access tools \ \ · \\\ REST \\ APIs \ \ \ · \\\ C#, JavaScript \ \ · \\\ SQL experience \ \ \ This is an amazing opportunity for a Senior Software Developer (.NET) to deliver a fully greenfield, Azure -based, DevOps...SeniorFull timeRemote work
- ...Frances Recruitment is supporting a client in the search for a Senior Full Stack Developer. This role is suited for an experienced developer who... ...user-focused front-end interfaces Design and implement RESTful APIs and backend services using modern frameworks and best practices...SeniorFull time
$125k - $135k per year
...Technology & Application Development, the Principal CRM Developer is the senior hands-on engineer for the technology that powers the CAO'... ...custom software development experience in areas such as microservices and APIs, clean code and clean architecture, automated testing and...SeniorFull timeManual laborWork at officeRemote workFlexible hours2 days per week$88.54 - $106.25 per hour
...RQ11712 - Software Developer - Senior Duration: 9+ Months (203 Business Days) + 1 Extension... ...Resource will develop data pipelines, APIs, reporting services, and dashboard functionality... ...Microsoft VB.NET framework, MS SQL database, Azure, TFS/DevOps, C#, DevExpress, data...SeniorFull time- ...Azure Integration Architect APIM REST APIs & Middleware Hybrid: 2-3 days a week onsite Role Summary The Integration Engineer is responsible for designing developing securing and supporting integrations across enterprise applications cloud platforms mobile applications...Full time2 days per week3 days per week
$165k - $200k per year
...Senior Full Stack Software Developer Location: Toronto GTA (hybrid) · Type: Full-time · Openings: 2 · Salary: CA$165K – $200K +... ...JavaScript/TypeScript, React and modern web frameworks ~ REST or GraphQL API development with Node.js and/or Python ~ Relational...SeniorFull time$130k - $150k per year
...Central to this mission is our API-first strategy, as we fully... ...are seeking a highly skilled Senior Software Engineer with strong... ...build high-performance real-time microservices, taking significant ownership... ...passionate about building great REST APIs (and helping others do the...SeniorFull time$85k - $135k per year
...celebrate your contributions. The Job: Senior Developer As a Senior Developer, you will be... ...Familiarity with cloud platforms (AWS, Azure, GCP). Experience with CI/CD... ...Agile/Scrum environments. Exposure to microservices architecture. Knowledge of automated...SeniorFull timeTemporary workWork at officeRemote work- ...able to write sample code snippets. Spring v5, Spring boot 3.x, Rest API frameworks JPA / Hibernate annotations Async APIs, Async... ...joins, Views, and Procedures Query optimisation knowledge Azure Cloud experience (Openshift Platform is nice to have) DevOps experience...SeniorFull time
$120k - $145k per year
...Reason One is hiring a Senior Fullstack Developer to build innovative products for clients like Emory Healthcare, Children's Nebraska, and Beacon... ...years professional experience developing and consuming APIs (GraphQL, REST) ~ Professional experience integrating clinical and...SeniorFull timeImmediate startRemote workWork from homeHome office1 day per week$120k - $160k per year
...The Role We're hiring Senior Full-Stack Developers to build... ...interface a client touches to the API that powers it. This is a true... ...reliable, well-documented REST APIs and data contracts that are... ...Docker, Terraform, Pub/Sub Developer Tools: Azure DevOps, Git, Webpack...SeniorFull timeContract workApprenticeshipRemote workFlexible hours- ...Position: Senior .NET Developer Location: Toronto, ON Job ID#: RQ11090 â Duration... ...methodologies Develop and integrate APIs and support front-end and back-end system... ...designing scalable web architecture and REST API services Ability to integrate UI...SeniorFull time
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