Java Developer

Virtusa; Mississauga; On-site; CAD 110,000 - 170,000; Full time

Job summary

Virtusa in Mississauga, Canada seeks a Senior Java Engineer to design, develop, and maintain scalable enterprise applications. You will mentor juniors, lead architectural discussions, and collaborate across product, QA, DevOps, and other teams.

Requirements include 7+ years of Java experience, Spring Boot, RESTful APIs, and strong SQL knowledge. You will work in an Agile environment on high-performance, secure microservices with modern tooling.

Qualifications

• Bachelor's degree or equivalent experience in CS/engineering.
• 7+ years of professional software development experience.
• Strong Java (Java 17+), Spring/Spring Boot, and REST API design.
• Solid understanding of object-oriented design, design patterns, and SOLID principles.
• Experience building RESTful APIs and backend services.
• Knowledge of SQL and relational databases (PostgreSQL/Oracle/MySQL).
• Familiarity with Git and modern CI/CD pipelines.
• Experience working in Agile development environments.
• Excellent problem-solving, communication, and collaboration skills.

Responsibilities

• Design, develop, test, and maintain high-quality Java applications and services.
• Lead technical design discussions and contribute to architectural decisions.
• Build and optimize RESTful APIs, microservices, and backend systems.
• Ensure application performance, scalability, reliability, and security.
• Write clean, maintainable, and well-documented code following best practices.
• Conduct code reviews and provide constructive feedback to team members.
• Mentor junior engineers and support team knowledge sharing.
• Collaborate with product managers, QA, DevOps, and other stakeholders.
• Troubleshoot complex technical issues in development and production environments.
• Participate in Agile/Scrum ceremonies and contribute to continuous improvement.

Skills

Java

Spring/Spring Boot

RESTful APIs

SQL Databases

Git & CI/CD

OOP & Design Principles

Agile/Scrum

Education

Bachelor's degree in Computer Science or related field

Tools

PostgreSQL

Oracle

MySQL

Git

CI/CD

Job description

Job Requirements

We are seeking a highly skilled Senior Java Engineer to design, develop, and maintain scalable, high-performance enterprise applications. The ideal candidate will have deep expertise in Java and modern backend / frontend technologies, a strong understanding of system design, and the ability to mentor junior engineers while collaborating with cross-functional teams.

Key Responsibilities

• Design, develop, test, and maintain high-quality Java applications and services
• Lead technical design discussions and contribute to architectural decisions
• Build and optimize RESTful APIs, microservices, and backend systems
• Ensure application performance, scalability, reliability, and security
• Write clean, maintainable, and well-documented code following best practices
• Conduct code reviews and provide constructive feedback to team members
• Mentor junior engineers and support team knowledge sharing
• Collaborate with product managers, QA, DevOps, and other stakeholders
• Troubleshoot complex technical issues in development and production environments
• Participate in Agile/Scrum ceremonies and contribute to continuous improvement

Required Qualifications

• Bachelor's degree in Computer Science, Engineering, or related field (or equivalent experience)
• 7+ years of professional experience in software development
• Strong proficiency in Java (Java 17+)
• Experience with Spring / Spring Boot
• Solid understanding of object-oriented design, design patterns, and SOLID principles
• Experience building RESTful APIs and backend services
• Strong knowledge of SQL and relational databases (e.g., PostgreSQL, Oracle, MySQL)
• Familiarity with Git and modern CI/CD pipelines
• Experience working in Agile development environments
• Excellent problem-solving, communication, and collaboration skills

Preferred Qualifications

• Experience with microservices architecture
• Exposure to cloud platforms (AWS, Azure, or GCP)
• Experience with containers and orchestration (Docker, Kubernetes)
• Knowledge of message queues / streaming platforms (Kafka, RabbitMQ)
• Familiarity with NoSQL databases (MongoDB, DynamoDB, Cassandra)
• Understanding of security best practices and authentication (OAuth2, JWT)
• Experience supporting high-availability or mission-critical systems

Work Experience

1015years