senior java microservices developer (spring boot / kafka) Jobs

RQ09885 - Sr. Software Developer - API
Source Code —Toronto, ON
- Weekends as needed
- Azure
- Oracle
- Java
Quick apply
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Source Code —Toronto, ON
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- Disability insurance
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Source Code —Toronto, ON
- $59.48–$89.21 an hour
- Full-time
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Applications Development Sr Programmer Analyst Assistant Vice President
Citi —Mississauga, ON
Bachelor’s degree/University degree or equivalent experience. Contribute to the technical design, architecture, and development of complex applications,…
$94,300–$141,500 a year
RQ09885 - Sr. Software Developer - API
Source Code —Toronto, ON
This includes developing detailed programming specifications, user interface designs, prototypes, writing and/or generating code, compiling data driven programs…
Quick apply

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RQ09885 - Sr. Software Developer - API

Source Code
Toronto, ON

Quick apply

Job details

Full-time

Skills

Spring Boot
Authentication
Azure
Oracle
JUnit
Kubernetes
XML
Relational databases
Microsoft SQL Server
Java
Microservices
SQL
Docker
Splunk
REST
APIs
JSON
Multithreading
Communication skills
Spring framework

Full job description

RQ09885 - Sr. Software Developer - API

Toronto / College St.

On-site (During the duration of the assignment, you will be under the discretion of the Hiring Manager's requirements for the Project you are assigned to)

Contract 1 year, 2 possible extensions

Security Level: CRJMC

A senior API Software Developer with 8+ years of experience will be responsible for creating and using APIs to translate functional specifications into working and tested applications. This includes developing detailed programming specifications, user interface designs, prototypes, writing and/or generating code, compiling data driven programs, conducting unit tests and debugging code.

Assignment Deliverables

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.

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.
Experience with asynchronous communication, multi-threading.
Knowledge on Integration with Oauth2, JWT, SAML, etc.
Strong skills in SQL and experience working with relational databases, such as SQL Server, or Oracle.
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).

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Refine Your Search

RQ09885 - Sr. Software Developer - API

RQ10808 - 3 x Sr. Software Developer

Applications Development Sr Programmer Analyst Assistant Vice President

Senior Specialist - Architecture

Specialist - Software Engineering

Senior Software Engineer ( Java)

RQ10475 - Sr. Software Developer

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