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TSR Consulting

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Full Stack Engineer \ Developer

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Summary

A senior (8+ years) Java backend engineer role in Mississauga, Canada, focused on building distributed data processing, ETL, and real-time streaming systems. Core stack: Java 11/17/21, Spring ecosystem, Kafka/Spark/Flink/Hadoop, SQL and NoSQL databases, and Docker/Kubernetes with CI/CD.

Technical Skills & Qualifications

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: 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.


Skills

See also

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