Position: Java Developer – Senior Software Engineer

Duration: 12 months

Location: Toronto, ON (4 Days Onsite)

Engagement Model: Professional Services Engagement – B2B

About the Engagement

Akkodis is seeking the services of experienced Java Developer(s) / Senior Software Engineer(s) to support the development and modernization of mission-critical services within a Brazil payments service-layer platform. The engagement will focus on designing and developing scalable APIs and microservices, event-driven architectures, payment integrations, and service implementations supporting a complex payments ecosystem.

The consultant will collaborate closely with distributed technology teams, including Brazil-based teams, while contributing as a key member of the development factory.

Services to be Provided

- Design, develop, test, and maintain scalable Java-based microservices and APIs.
- Develop RESTful APIs and service-to-service integrations.
- Build integrations between core banking platforms and external payment ecosystems.
- Design and implement event-driven solutions using Kafka and asynchronous messaging patterns.
- Participate in solution refinement, technical design, and architecture discussions.
- Ensure software solutions meet functional, non-functional, security, and compliance requirements.
- Contribute to CI/CD pipelines, automated testing, and software engineering best practices.
- Support production issue resolution, troubleshooting, and performance optimization.
- Contribute to modernization and sustainability initiatives for the payments platform.
- Collaborate effectively with distributed global development and technology teams.

Expertise Required

- Strong hands-on experience with Java and Spring Boot.
- Solid experience designing and developing distributed systems and microservices architectures.




- Experience with Brazilian payment platforms and payment ecosystems.
- Strong experience developing REST APIs and service integrations.
- Strong experience with Kafka, event-driven architectures, and asynchronous integration patterns.
- Experience with MongoDB and/or relational databases, including Oracle or PostgreSQL.
- Experience with Redis or other caching technologies.
- Experience with CI/CD pipelines, Git, automated testing, and DevOps practices.
- Experience working within Agile development environments.
- Experience supporting payment systems, financial platforms, or transactional processing applications.
- Strong analytical, troubleshooting, debugging, and problem-solving capabilities.
- Ability to collaborate effectively with distributed and international teams.

Important

This is a business-to-business engagement. Candidates must represent an incorporated entity, hold a valid business number, maintain appropriate insurance, and invoice for services rendered.

Nice to Have

- Portuguese language proficiency.
- Knowledge of PIX, TED, DDA, Receivables, Cash Management, or related banking products.
- Experience with Matera platforms and payment processing solutions.
- Experience with Airflow or workflow orchestration engines.
- Experience with OpenShift, Kubernetes, Docker, and cloud-native platforms.
- Experience with Splunk, Dynatrace, Grafana, or similar observability platforms.
- Experience working within highly regulated financial institutions.

How to Apply

Submit your resume via the Akkodis Canada website.

Accessibility

At Akkodis, part of The Adecco Group, our purpose is simple: to make the future work for everyone. We live our values, Passion, Collaboration, Inclusion, Courage, and Customers at Heart- by fostering a workplace where diversity is celebrated and every voice matters. We encourage applications from individuals of all backgrounds and identities. Together, we’re making the future work for everyone.

📌 Senior Java Software Engineer (Toronto)
🏢 Akkodis
📍 Toronto