Senior Java React JS Developer

Calgary AB (Hybrid)
$60/hour Contract

We are hiring a Senior Full Stack Developer with strong expertise in React (Frontend) and Java Spring Boot (Backend). This role requires hands-on experience building scalable cloud-native applications using modern frameworks microservices architecture and AWS.

• 5 years of hands-on experience with ReactJS in production environments
• Strong proficiency in JavaScript (ES6) HTML5 CSS3 (5 years)
• 3 years experience with state management (Redux / Context API)
• 3 years experience with UI frameworks (Material UI Ant Design Bootstrap)
• 2 years experience in UI testing (Jasmine Karma or similar)
• Proven experience building responsive high-performance web applications

• 5 years of experience with Core Java / J2EE
• 5 years of hands-on experience with Spring Boot & RESTful API development
• 3 years experience with Spring Cloud / Microservices architecture (Eureka Zuul Resilience4j Ribbon)
• 3 years experience in API documentation (Swagger/OpenAPI)
• 3 years experience with Unit & Integration Testing (JUnit Mockito or similar)

• 3 years hands-on experience with AWS services (EC2 S3 Lambda API Gateway ELB CloudWatch)
• 3 years experience with CI/CD pipelines (Jenkins or similar)
• 3 years experience using Git in Agile environments
• 2 years experience with Docker (containerization)
• 2 years experience with Kubernetes (deployment & orchestration)

• 3 years experience working with relational databases (MySQL PostgreSQL)
• Experience with NoSQL databases (MongoDB or similar)

• Strong understanding of microservices design patterns
• Experience building and consuming scalable REST APIs
• Solid understanding of application performance optimization and scalability
• Strong problem-solving and analytical skills

• AWS Certification
• 2 years experience with AI-assisted development tools (e.g. GitHub Copilot)
• Familiarity with GraphQL
• Exposure to Domain-Driven Design (DDD)
• Experience in enterprise-scale environments
• Prior technical leadership or mentoring experience

• Excellent communication and stakeholder collaboration
• Ability to work independently in a hybrid environment
• Strong ownership mindset with ability to lead initiatives
• Passion for mentoring and knowledge sharing

If you meet the above must-have criteria and are looking to work on modern scalable technologies in a dynamic environment we encourage you to apply.