Experience

8+ years of qualified experience in application development or systems analysis, with a heavy emphasis on Java-based backend architectures. Core Java Mastery:

Deep, expert-level understanding of Core Java (Java 11/17/21), including advanced multithreading, concurrency models, Java memory model (JVM garbage collection, heap analysis), and Collections API. Data Processing & Streaming:

Extensive hands-on experience building distributed data processing systems, ETL pipelines, and real-time streaming architectures using tools like

Apache Kafka ,

Apache Spark ,

Flink , or

Hadoop . Framework Expertise:

Strong experience with the

Spring Ecosystem

(Spring Boot, Spring Cloud, Spring Data, Spring Security) and ORM frameworks (Hibernate/JPA). Database Management:

Proficiency in designing schemas and writing optimized queries for both relational databases (e.g., PostgreSQL, MySQL, Oracle) and NoSQL stores (e.g., Cassandra, MongoDB, Redis). Distributed Systems:





Comprehensive understanding of distributed system design patterns, consensus protocols, caching strategies, and API design (RESTful APIs, gRPC). CI/CD & DevOps:

Practical experience with containerization ( Docker ,

Kubernetes ), continuous integration/continuous deployment tools (Jenkins, GitLab CI, or GitHub Actions), and infrastructure-as-code principles. Testing:

Strong advocate for testing frameworks such as JUnit, Mockito, and integration testing tools. Preferred Qualifications:

Experience with cloud platforms (AWS, Azure, or GCP), specifically managed database and container services. Experience in financial services, banking technology, or large-scale enterprise transaction systems. Familiarity with Unix/Linux environments, shell scripting, and network configurations.

📌 Back End Developer (Mississauga)
🏢 TSR Consulting
📍 Mississauga