Java Developer
- Mississauga, ON, Canada
Full-time
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Job details
- Job type
- Full-time
- Apply by
- Experience
- 7+ years of professional experience in software development
- Posting language
- English
- Posted
Original job description
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
More about this job
Responsibilities
Design, develop, test, and maintain scalable Java applications, RESTful APIs, microservices, and backend systems, ensuring performance, reliability, and security. Lead technical and architectural discussions, review code, mentor junior engineers, collaborate with cross-functional teams, and troubleshoot issues across development and production environments.
Requirements
Requires a bachelor's degree in Computer Science, Engineering, or a related field, or equivalent experience, along with 7+ years of software development experience and strong Java 17+ and Spring Boot expertise. Candidates should have experience with APIs, backend services, SQL databases, Git, CI/CD, and Agile development, as well as strong problem-solving, communication, and collaboration skills.
Skills
- Java
- Spring Boot
- System Design
- Object-Oriented Design
- Design Patterns
- SOLID Principles
- RESTful APIs
- Microservices
- SQL
- Relational Databases
- Git
- CI/CD
- Agile/Scrum
- Cloud Platforms
- Docker
- Kubernetes
Visa sponsorship
Not detected in the job text
Categories
- Software
- Technology
- Engineering
- Management & Leadership
Keywords
- Java
- Java 17+
- Spring
- Spring Boot
- RESTful APIs
- Microservices
- Backend Systems
- System Design
- Object-Oriented Design
- Design Patterns
- SOLID Principles
- SQL
- PostgreSQL
- Oracle
- MySQL
- Git
- CI/CD
- Agile
- Scrum
- AWS
- Azure
- GCP
- Docker
- Kubernetes
- Kafka
- RabbitMQ
- MongoDB
- DynamoDB
- Cassandra
- OAuth2