Senior Java Developer

Infoya; Toronto; Hybrid; CAD 90,000 - 120,000; Full time

Job summary

A leading tech firm in Toronto is seeking an experienced Java Developer to design and build scalable applications. The ideal candidate will have extensive experience in Java, Spring Boot, and microservices, along with strong skills in REST APIs and SQL databases. This role requires collaboration with teams to deliver high-performance solutions, while managing the deployment process. The company offers a competitive salary and a hybrid work option, fostering a dynamic work environment.

Benefits

Competitive salary and benefits package

Professional development opportunities

Dynamic and collaborative work environment

Qualifications

• 7-9 years of hands-on experience in backend development.
• Proven experience with Java (8, 11) and Spring frameworks.
• Strong expertise in REST APIs and OpenAPI specifications.
• Hands-on experience with SQL databases, particularly PostgreSQL.
• Expertise in building solutions on Google Cloud Platform (GCP).

Responsibilities

• Design and develop microservices-based applications using Java.
• Optimize RESTful APIs for performance and security.
• Manage the release process including deployment and validation.
• Conduct unit and integration testing using JUnit and Mockito.
• Collaborate with cross-functional teams to define new features.

Skills

Java

Spring Boot

REST APIs

SQL

Microservices

OAuth2

Jenkins

Docker

Kubernetes

Tools

GCP

JUnit

Mockito

Job description

We are looking for an experienced Java Developer to design, build, and maintain robust, scalable, and high-performance applications. You will work on developing modern e-commerce and enterprise-grade solutions for retail and inter-organization clients.

The ideal candidate will have a strong command of Java, Spring Boot, microservices architecture, security, and SQL databases.

Key Responsibilities

• Design, develop, and maintain microservices-based applications using Java and Spring Boot.
• Develop and optimize RESTful APIs to ensure high performance, scalability, and security.
• Build high performance APIs, knowledge of Open API spec, hands on experience using OAuth2.
• Write clean, efficient, and maintainable code following best practices and design patterns.
• Work with SQL databases (MySQL, PostgreSQL, Redis) and optimize queries for performance.
• Deploy, manage, and monitor applications on cloud environments, preferably GCP.
• Manage the end-to-end release process, including build preparation, automated testing, UAT, stakeholder approvals, deployment through Jenkins, and post-deployment validation.
• Conduct unit and integration testing using JUnit and Mockito to ensure application reliability.
• Collaborate with cross-functional teams (UI/UX, DevOps, QA, Product) to define and deliver new features.
• Participate in code reviews, mentoring, and knowledge-sharing sessions.
• Maintain documentation for functionalities, APIs, and system configurations to ensure clear communication among stakeholders.
• Research and implement innovative solutions to enhance system performance and resolve complex challenges.

Requirements

Must-Have Qualifications

• 7-9 years of hands-on experience in backend development, building scalable and high-availability applications.
• Proven years of solid experience with Java (8,11) Spring frameworks, with Spring Boot as a core requirement.
• Strong expertise in designing and developing high-performance REST APIs, with strong knowledge of OpenAPI specifications and hands-on experience implementing OAuth2, multithreading, caching.
• Hands-on experience writing SQL queries and working with relational databases, particularly PostgreSQL.
• Hands-on experience with CI/CD pipelines, including tools such as Jenkins, Docker, Kubernetes, Maven, Gradle.
• Expertise in building and deploying solutions on Google Cloud Platform (GCP), with a strong understanding of cloud-native architectures.
• Proven experience in Agile environment, mentoring developers, including code reviews, technical guidance, and best-practice enforcement.

Desired Skills (2+ Years)

• Experience with Google BigQuery, Apache Beam (Java), or similar data-processing technologies (highly desirable).
• Strong understanding of data modeling concepts.
• Exposure with automation and scripting, preferably using Python.

Benefits

• Competitive salary and benefits package.
• Opportunity to work with a diverse and talented team.
• Professional development and growth opportunities.
• A dynamic and collaborative work environment.
• Hybrid work option.