Lead Java Full Stack Developer (Spring Boot, Kafka & Microservices)

Date Posted: 07/10/2026 Hiring Organization: Rose International Position Number: 504024 Industry: Financial Services Job Title: Lead Java Full Stack Developer (Spring Boot, Kafka & Microservices) Job Location: Mississauga, ON, Canada, L5B 1A7 Work Model: Hybrid Work Model Details: Hybrid -3 days onsite and 2 days remote Shift: Standard Work Hours Employment Type: Temporary FT/PT: Full-Time Estimated Duration (In months): 6 Min Hourly Rate($): 70.00 Max Hourly Rate($): 80.00 Must Have Skills/Attributes: Banking/Financial, CI/CD tools, Java, Kafka, Lead Developer, Microservices, Spring Boot Experience Desired: Software engineering experience with strong expertise in Java application development (8+ yrs); Proven experience leading enterprise application development using Java, microservices, and cloud (5+ yrs) Required Minimum Education: Bachelor’s Degree **C2C is not available** Job Description Required Education Bachelor's degree/University degree or equivalent experience in Computer Science, Engineering, or related field. Required Qualifications/Skills/Experience 8+ years of software engineering experience with strong expertise in Java application development. Proven experience in a Lead Engineer or senior technical leadership role. Strong experience designing distributed systems, microservices, APIs, and event-driven architectures. Demonstrated ability to influence technical direction across multiple teams. Excellent leadership, communication, and stakeholder management skills. Experience working in Agile environments. Java (11+ preferred), Spring Boot, Spring Cloud. Angular, React, TypeScript, JavaScript. REST APIs, GraphQL, API Gateway. Microservices, Domain-Driven Design (DDD), CQRS, Event-Driven Architecture. Kafka, RabbitMQ, JMS. Oracle, PostgreSQL, MongoDB. Docker, Kubernetes, OpenShift. AWS, Azure, or GCP. Git, Maven/Gradle, CI/CD pipelines. Observability tools such as Splunk, ELK, Prometheus, Grafana. OAuth2, JWT, secure development practices. Preferred Qualifications/Skills/Experience Experience in financial services or regulated environments. Exposure to GenAI, Agentic AI, MCP, and AI-driven application integration. Knowledge of cloud modernization and enterprise architecture frameworks. Overview This is a senior technology leadership role responsible for architecting, developing, and delivering enterprise-scale full stack applications. The role requires expertise in Java, modern UI frameworks, microservices, APIs, event-driven architectures, and cloud-native technologies. The successful candidate will drive technical direction, establish engineering standards, mentor development teams, and partner with business and technology stakeholders to deliver scalable, secure, and resilient solutions aligned with enterprise architecture and control requirements. Job Duties Lead the design and development of full stack applications using Java, Spring Boot, Angular/React, microservices, and APIs. Define and drive architecture standards, engineering best practices, and modernization initiatives. Design scalable event-driven solutions leveraging Kafka and asynchronous messaging patterns. Lead technical design reviews, code reviews, and architecture governance across multiple teams. Provide technical leadership for cloud-native applications, containerization, and platform modernization efforts. Drive implementation of CI/CD, automated testing, observability, resiliency, and security best practices. Mentor engineers and foster a culture of technical excellence and continuous improvement. Partner with Architecture, Product, Infrastructure, and Operations teams to deliver strategic technology solutions. Lead resolution of complex production issues, performance bottlenecks, and system scalability challenges. Ensure compliance with technology risk, security, and regulatory standards. #CT1 **Only those lawfully authorized to work in the designated country associated with the position will be considered.** **Please note that all Position start dates and duration are estimates and may be reduced or lengthened based upon a client’s business needs and requirements.** Benefits For information and details on employment benefits offered with this position, please visit here. Should you have any questions/concerns, please contact our HR Department via our secure website. California Pay Equity For information and details on pay equity laws in California, please visit the State of California Department of Industrial Relations' website here. Rose International is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, sexual orientation, gender (expression or identity), national origin, arrest and conviction records, disability, veteran status or any other characteristic protected by law. Positions located in San Francisco and Los Angeles, California will be administered in accordance with their respective Fair Chance Ordinances. If you need assistance in completing this application, or during any phase of the application, interview, hiring, or employment process, whether due to a disability or otherwise, please contact our HR Department. Rose International has an official agreement (ID #132522), effective June 30, 2008, with the U.S. Department of Homeland Security, U.S. Citizenship and Immigration Services, Employment Verification Program (E-Verify). (Posting required by OCGA 13/10-91.).

The role involves leading the design and development of full stack applications using Java and modern UI frameworks. The successful candidate will also define architecture standards and mentor development teams.

Candidates must have 8+ years of software engineering experience with strong expertise in Java application development and proven experience in a lead engineer role. Strong experience in designing distributed systems and microservices is also required.

Identified from the job description. Confirm important requirements above.

• Java
• Spring Boot
• Microservices
• Kafka
• Angular
• React
• TypeScript
• JavaScript
• REST APIs
• GraphQL
• Docker
• Kubernetes
• AWS
• Azure
• CI/CD
• Observability

Minimum education

Bachelor’s degree

Minimum experience

10+ years

Apply by

Aug 12, 2026