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Java Developer

Job in Calgary, Alberta, D3J, Canada
Listing for: Compunnel, Inc.
Full Time position
Listed on 2026-03-01
Job specializations:
  • Software Development
    Java Developer, Full Stack Developer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 CAD Yearly CAD 80000.00 100000.00 YEAR
Job Description & How to Apply Below

The Senior Java Developer will be responsible for designing, creating, and implementing Java-based solutions across a range of projects, including mobile applications and database programming.

The role involves contributing to software development efforts, enhancing existing systems, and ensuring performance, scalability, and quality.

Key Responsibilities
  • Design and develop high-volume, low-latency applications for mission-critical systems with high availability and performance.
  • Contribute to all phases of the software development lifecycle.
  • Write well-designed, testable, and efficient code.
  • Enhance existing systems by adding new features based on business requirements.
  • Monitor application performance and identify innovative solutions for improvement.
  • Collaborate with team members to build scalable, secure, and high-quality software products.
  • Follow best practices for development, deployment, and maintenance of software.
  • Deploy new features and products into the production environment.
Required Qualifications
  • 8+ years of experience in Java development.
  • Experience in the financial domain.
  • Proficiency in Java and strong understanding of its ecosystem.
  • Solid knowledge of OOP concepts and design patterns.
  • Familiarity with design and architectural patterns.
  • Ability to write reusable Java libraries.
  • Knowledge of Java concurrency patterns.
  • Basic understanding of MVC architecture, JDBC, and RESTful web services.
  • Working knowledge of Java GUI frameworks such as Swing, SWT, or AWT, depending on project needs.
  • Ability to write clean and readable code.
  • Basic understanding of the Java class loading mechanism.
  • Experience working with external and embedded databases.
  • Understanding of scalable application design principles.
  • Experience creating database schemas aligned with business processes.
  • Basic knowledge of JVM behavior, limitations, and best practices.
  • Experience implementing automated testing platforms and unit tests.
  • Proficiency with version control tools such as Git.
  • Understanding of build tools such as Ant, Maven, or Gradle.
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