Lead Java and Spring Boot modernization in Downtown Toronto, working hybrid with four onsite days weekly on a six-month contract. Build resilient services.

This Senior Full Stack Engineer role focuses approximately 80% on backend development and 20% on React enhancements. You will modernize a mission-critical Public Markets platform by decomposing its monolithic application into cloud-native microservices. The work includes distributed systems, AWS deployment, architecture decisions, and collaboration with Capital Markets stakeholders.

Key Responsibilities:

- Refactor monolithic applications into microservices architectures
- Design and maintain Java Spring Boot backend services
- Shape service boundaries and technical design decisions




- Deploy cloud-native applications in AWS
- Ensure systems remain secure, scalable, and performant

Requirements:

- 10+ years of enterprise Java development experience
- Advanced Spring Boot expertise
- Proven microservices architecture refactoring experience
- Distributed high-performance systems development experience
- Robust analytical, communication, and collaboration skills

Apply senior Java, Spring Boot, microservices, and distributed systems expertise to modernize a Public Markets platform.

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📌 Senior Java Microservices Engineer (Toronto)
🏢 Collabera
📍 Toronto