Required Qualifications:

- Experience:

8+ years of professional 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:

Solid 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