Type:
6-month contract + opportunity to extend
Location:
Downtown Toronto, ON - Hybrid (4 day/week on-site)
Why Is This Role Open? Client is executing a
large-scale transformation
to refactor a legacy
monolithic application into a microservices-based architecture.
The Senior Full Stack Engineer will join a Capital Markets engineering team responsible for modernizing and rebuilding a mission-critical platform used across Public Markets. This is primarily a backend-focused role (approximately 80% backend / 20% frontend), requiring deep expertise in Java development while also contributing to React-based UI enhancements.
The successful candidate will play a key role in decomposing a legacy monolithic application into cloud-native microservices while supporting ongoing user interface enhancements for portfolio management users.
Day-to-Day Responsibilities
Refactor and decompose a large monolithic application into microservices.
Design, develop, and maintain backend services using Java and Spring Boot.
Contribute to architecture discussions, service boundaries, and technical design decisions.
Develop and deploy cloud-native applications in AWS.
Build and enhance React-based UI components
Collaborate with developers, business analysts, and Capital Markets stakeholders
Ensure systems are highly performant, secure, resilient, and scalable.
Participate in code reviews and engineering best practices.
Must-Have Skills
10+ years of enterprise Java development experience. (80%)
Advanced Spring Boot expertise.
Proven experience building and refactoring microservices architectures.
Experience designing and developing distributed, high-performance systems.
Frontend Development
Comfortable contributing to frontend features and UI enhancements
Cloud- AWS experience (preferred)
Capital Markets Experience (if they don't have capital markets, should at least come from financial services/ retail banking).
Public Markets experience.
FX experience.
Understanding of front-office trading workflows.
Soft Skills
Strong analytical and problem-solving abilities.
Ability to work independently in a fast-paced engineering environment.
Strong communication and collaboration skills.
Nice-to-Haves
Experience with portfolio management or trading platforms.
Mockito and automated testing frameworks.
Exposure to AI/ML concepts.
Experience working in highly regulated financial environments.
We may use AI-enabled and/or automated tools to support parts of our recruitment process, including application screening, interview scheduling, and candidate communications. These tools are used to enhance consistency and efficiency. All hiring decisions involve human review and are not based solely on automated processing.
The Company offers a total rewards package in accordance with all applicable federal, provincial, and local laws and requirements. Benefit eligibility and offerings vary based on role, employment status, and work location. For contractor positions, benefits are limited to those entitlements and protections required by applicable law, which may include (as applicable) vacation pay, public holidays, leaves of absence, and other legally mandated benefits or payments.
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Java Developer (React) in Toronto employer: Collabera
Collabera is an exceptional employer that fosters a collaborative and innovative work culture in North York, ON. As a Strategic Change & Workforce Optimization Lead, you will have the opportunity to drive impactful change while working alongside talented professionals, with ample opportunities for personal and professional growth. The company values data-driven decision-making and offers a supportive environment where your contributions directly influence operational success.
