Senior Java Full-Stack Engineer - API & Cloud, Hybrid

KellyOCG; Montreal; Hybrid; CAD 120,000 - 180,000; Full time

Job summary

KellyOCG in Montreal is seeking a senior, hands-on software developer to design, build, and maintain business applications. You’ll work across application development and production support, contribute to technical design, and help deliver reliable, secure software from development through deployment.

The role requires 12+ years of experience with Java enterprise tech (J2EE/Jakarta EE), Spring, REST/SOAP services, and Kafka.

Qualifications

• At least 12 years of professional software development experience.
• Fluent in English and French.
• Bachelor’s degree in computer science, engineering, or related technical field.
• Extensive experience with Java enterprise technologies (J2EE/Java EE, Jakarta EE).
• Experience designing and implementing REST and SOAP services; Kafka experience is relevant.

Responsibilities

• Design, develop, debug, and maintain application features and software modules.
• Build and maintain secure, scalable APIs and integrations between products.
• Review business and technical requirements, identify risks, and participate in design discussions.
• Guide other developers, review technical work, and contribute to coding practices and development processes.
• Help estimate work and coordinate the assignment and resolution of defects.
• Contribute to test-case documentation and support quality assurance.
• Help deploy software and troubleshoot issues in production.
• Use approved AI-assisted development tools to support coding, testing, reviews, troubleshooting, and documentation while following security and governance standards.

Skills

Java/J2EE

REST APIs

SQL/Relational DBs

Technical leadership

Education

Bachelor's degree in CS/Engineering

Tools

Spring Framework

Hibernate/JPA

JDBC

Kafka

REST/SOAP

Job description

KellyOCG in Montreal is seeking a senior, hands-on software developer to design, build, and maintain business applications. You’ll work across application development and production support, contribute to technical design, and help deliver reliable, secure software from development through deployment.

The role requires 12+ years of experience with Java enterprise tech (J2EE/Jakarta EE), Spring, REST/SOAP services, and Kafka.