Senior Java Developer / Technical Lead

Location: Ontario, Canada – Hybrid

Experience: 8+ Years

We are seeking an experienced Senior Java Developer / Technical Lead to design and deliver secure, scalable, high-performance banking and payment applications. The ideal candidate will have robust expertise in Java, Spring Boot, microservices, REST APIs, Kafka, database optimization, and cloud-native technologies, along with proven technical leadership experience.

Key Responsibilities

- Design and develop Java/Spring Boot microservices, REST APIs, and event-driven applications.
- Build high-volume, low-latency distributed services for banking, payments, and account servicing.
- Implement batch processing, data migration, archival, synchronization, and recovery solutions.
- Work with MongoDB, Oracle, PostgreSQL, and other relational/NoSQL databases.
- Deploy and migrate applications using OpenShift, Kubernetes, AWS, or similar cloud platforms.
- Develop CI/CD pipelines using Jenkins, GitHub, Maven, Gradle, and Harness.
- Implement API security using OAuth 2.0, TLS, and encryption.
- Lead technical design, code reviews, testing, releases, and production support.
- Mentor developers and establish coding standards and engineering best practices.
- Monitor application performance using Splunk, Kibana, AppDynamics, Instana, or Datadog.
- Collaborate with architecture, QA, DevOps, security,



and product teams to improve application reliability and performance.

Required Skills

- 8+ years of experience in Java/J2EE development.
- Strong expertise in Java, Spring Boot, Spring MVC, Spring Data, and Spring Batch.
- Hands-on experience with microservices, REST APIs, Kafka, and enterprise messaging technologies such as RabbitMQ, IBM MQ, or JMS.
- Strong database experience with MongoDB and Oracle/PostgreSQL.
- Experience with Kubernetes, OpenShift, AWS, or equivalent cloud platforms.
- Proficiency in Jenkins, Maven, Gradle, GitHub, SonarQube, and CI/CD pipelines.
- Strong understanding of API security, OAuth 2.0, TLS, and encryption.
- Experience with automated testing, including JUnit, Mockito, integration testing, and performance testing.
- Production troubleshooting, application monitoring, and performance optimization experience.
- Proven technical leadership, mentoring, and engineering delivery skills.

Preferred Qualifications

- Banking, payments, cards, digital wallets, or account-servicing domain experience.
- Experience with Cassandra, MariaDB, Apigee, AWS, or Google Cloud.
- Familiarity with Autosys and enterprise batch scheduling.
- AWS or other relevant cloud certifications.
- Experience with AI-assisted software development tools.

📌 Senior Java Developer / Technical Lead (Toronto)
🏢 Lorven Technologies
📍 Toronto