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Backend Java Engineer

TechDoQuest
Full Timejunior
Burlington, Ontario, CAPosted April 4, 2026

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JavaSQLSpringPostgreSQLMySQLMongoDBDynamoDBGitSwaggerRESTAgileScrumDevOpsMicroservicesAPI

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Job Description

Job Responsibilities

  • Design, develop, and maintain RESTful APIs using Java and Spring Boot
  • Implement backend services following established microservices patterns and standards.
  • Integrate APIs with relational and NoSQL databases.
  • Consume and produce JSON-based APIs for frontend and downstream systems.
  • Implement validation, error handling, logging, and exception management.
  • Write unit and integration tests to ensure API quality and reliability.
  • Support API documentation using Swagger / OpenAPI.
  • Debug and resolve issues related to API performance, data consistency, and integrations.
  • Collaborate with frontend, QA, DevOps, and product teams in an Agile/Scrum environment.
  • Contribute to code reviews and continuous improvement initiatives.
  • Contribute to continuous improvement initiatives, including AI-enabled productivity improvements.

Required Qualifications

  • 3+ years of experience in backend or server‑side development
  • Strong experience with Java and Spring Boot
  • Hands-on experience using AI tools such as Claude or similar LLM-based assistants to analyze.
  • Hands‑on experience designing and developing REST APIs
  • Familiarity with database technologies: SQL (PostgreSQL, MySQL, or similar) & Basic exposure to NoSQL (MongoDB, DynamoDB, etc.) is a plus.
  • Understanding of HTTP, REST principles, and API security concepts
  • Experience working with Git and collaborative version control workflows.
  • Familiarity with Maven or Gradle build tools.
  • Experience working in Agile development environments.

Soft Skills

  • Solid analytical and problem‑solving abilities.
  • Ability to take ownership of assigned backend services or APIs.
  • Strong communication skills and teamwork mindset.
  • Willingness to learn new technologies and backend patterns.
  • Comfortable working in a fast‑paced, collaborative environment.

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