Jobs in Vaughan

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Within 25 km of Vaughan

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Tamanna Technology

Senior Java / J2EE Developer

Toronto, ON, Canada

Contract

Within 25 km of Vaughan · About 22.9 km from the city centre

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Job details

Job type: Contract
Apply by: Dec 20, 2026
Experience: 10+ years of professional experience in enterprise application development using Java (8+) and J2EE.
Posted: Oct 21, 2026

Original job description

We are seeking an experienced and detail-oriented Java / J2EE Developer to join our development team. In this role, you will design, develop, and maintain high-performance enterprise applications. The ideal candidate will have deep expertise in Core Java, Spring Boot, and J2EE architecture, alongside strong hands-on experience with Relational Databases. Familiarity with Mainframe systems or IBM Master Data Management (MDM) is a strong advantage.

Key Responsibilities

Application Development: Design, build, and maintain scalable backend services and microservices using Java, Spring Boot, and J2EE frameworks.
Database Management: Write, optimize, and maintain complex SQL queries, stored procedures, and database schemas using relational databases (e.g., Oracle, PostgreSQL, MySQL, SQL Server).
System Architecture & Integration: Collaborate with cross-functional teams to integrate modern backend services with enterprise legacy systems.
Code Quality & Best Practices: Participate in code reviews, write unit tests, and ensure code quality, reliability, and security standards.
Troubleshooting: Diagnose and resolve technical issues, performance bottlenecks, and system bugs in a production environment.

Required Qualifications

Core Technical Skills:
10+ years of professional experience in enterprise application development using Java (8+) and J2EE.
Strong expertise in building microservices and RESTful APIs using Spring Boot and Spring Framework.
Solid understanding of object-oriented programming (OOP), design patterns, and multithreading concepts.
Database Expertise:
Proven experience with Relational Databases (RDBMS) such as Oracle, PostgreSQL, or SQL Server.
Proficiency in writing and tuning SQL queries, object-relational mapping (ORM) frameworks like Hibernate or JPA.
Software Engineering Principles:
Hands-on experience with version control systems (Git) and CI/CD pipelines (Jenkins, GitLab, etc.).
Experience working in an Agile/Scrum development environment.

Nice-to-Have Skills

Exposure to or experience working with Mainframe systems (COBOL, JCL, DB2).
Experience with IBM Master Data Management (IBM MDM) solutions.
Experience with cloud platforms (AWS, Azure, or GCP) and containerization (Docker, Kubernetes).

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More about this job

Responsibilities

Design, develop, and maintain scalable enterprise backend services and microservices using Java, Spring Boot, and J2EE, while managing relational database schemas, queries, and stored procedures. Integrate modern services with legacy systems, uphold code quality and security through reviews and testing, and troubleshoot production issues and performance bottlenecks.

Requirements

Requires 10+ years of enterprise application development experience with Java 8+ and J2EE, including strong expertise in Spring Boot, Spring Framework, microservices, REST APIs, and relational databases. Candidates should also have SQL tuning, ORM, Git, CI/CD, and Agile/Scrum experience; mainframe, IBM MDM, cloud, and containerization experience are advantageous.

Skills

Java
J2EE
Spring Boot
Spring Framework
Microservices
RESTful APIs
Relational Databases
SQL
Hibernate
JPA
Git
CI/CD
Agile/Scrum
Mainframe Systems
IBM MDM
Docker and Kubernetes

Visa sponsorship

Not detected in the job text

Keywords

Java
J2EE
Java 8+
Spring Boot
Spring Framework
Microservices
RESTful APIs
Enterprise Applications
Backend Services
Relational Databases
RDBMS
Oracle
PostgreSQL
MySQL
SQL Server
SQL
Stored Procedures
Hibernate
JPA
Object-Oriented Programming
Design Patterns
Multithreading
Git
CI/CD
Jenkins
GitLab
Agile
Scrum
Mainframe
COBOL

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