Senior Software Developer - Full Stack

We are seeking an experienced Senior Software Developer - Full Stack for a 6-month contract role based in Toronto (Hybrid: up to 3 days/week on-site). In this role, you will design, build, and support large-scale enterprise integration solutions, complex APIs, and containerized applications. You will collaborate closely with cross-functional teams and stakeholders to translate business requirements into robust, scalable enterprise systems while ensuring high standards of data security, privacy, and architectural governance.

Advantages
Hybrid Work Model: Up to 3 days on-site, offering a balance of collaboration and flexibility.

Enterprise-Scale Impact: Drive high-visibility integration solutions across complex organizational systems.

Modern Tech Stack: Work with top-tier tools including OpenShift/Kubernetes, MuleSoft, Apache Camel, and AWS cloud services.

Collaborative Leadership: Engage directly with diverse technical teams and business stakeholders to shape architectural direction.

Responsibilities
Integration & API Development: Design, develop, test, and maintain enterprise integration flows, REST APIs, and reusable integration services using Enterprise Java, MuleSoft, Apache Camel, and modern data transformation technologies (JSON/XML).

Cloud & Containerization: Deploy, manage, and scale microservices and containerized application architectures using OpenShift and Kubernetes, leveraging AWS cloud services (Lambda, SQS, S3) where applicable.

Architecture & Technical Design: Map complex data flows, design scalable data schemas/ER diagrams, and apply fault-tolerant patterns (retries, dead-letter queues, monitoring) to ensure data consistency and system reliability.

Stakeholder Collaboration & Translation: Act as a technical bridge between business and inter-divisional technical teams to analyze requirements, evaluate feasible solutions, and produce clear technical/architectural documentation.

Quality Assurance & Standards: Develop test plans and test scenarios, track/resolve defect issues, and ensure all application designs comply with security, privacy, and regulatory governance standards.

Qualifications
Education: Degree in Computer Science, Software Engineering, or a related discipline.

Enterprise Integration: Advanced expertise with Apache Camel, MuleSoft, Enterprise Java, REST APIs, and data transformation formats (JSON/XML). Strong hands-on experience with API-led connectivity and integration patterns.

Cloud & Platforms: Proven experience deploying containerized applications using OpenShift or Kubernetes. Hands-on experience with AWS services (Lambda, SQS, S3) is considered a strong asset.

Data & Reliability: Proficiency in SQL, relational database design, data modeling, and fault-tolerant patterns (DLQs, automated retries, monitoring).

DevOps & Practices: Solid experience with CI/CD pipelines, source control workflows, automated testing frameworks, and modern DevOps methodologies.

Ecosystem Experience: Demonstrated background integrating multi-system enterprise platforms (e.g., CRM, ERP, asset management, training/document management systems).

Industry Experience: Prior experience delivering solutions in the Public Sector is preferred.

Summary
If you're interested in the "Senior Software Developer - Full Stack" role based in Toronto, we encourage you to apply online at www.randstad.ca. Only qualified candidates will be contacted for the next steps. We look forward to hearing from you!

Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.

Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to [email protected] to ensure their ability to fully participate in the interview process.

This posting is for existing and upcoming vacancies.