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

Solid 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

📌 Java Developer (Mississauga)
🏢 Virtusa
📍 Mississauga