Full Stack Java Developer

Toronto, ON
On-site
Posted Oct 20, 2026
1 position

Opens an external site

Employment type: Contract
Experience level: Senior · 5+ years
Posting language: English
Working hours: 40 hours per week

Job summary

Develop, integrate, test, deploy, and maintain complex Java applications and Azure-based microservices, including user interfaces, APIs, integrations, business logic, and database components. Provide technical leadership through solution planning, code reviews, mentoring, troubleshooting, deployment support, and maintaining technical documentation.

Job details

Position: Full Stack Java Developer Location: Toronto, ON (Onsite) Job ID#: RQ11719 Duration: 12 Months Role Overview We are seeking a Senior Software Developer to develop, configure, integrate, test, deploy, and maintain complex application components in accordance with approved architecture, technical designs, security requirements, and coding standards. The successful candidate will provide technical leadership and help ensure the quality, reliability, performance, and maintainability of solutions. Key Responsibilities Develop, configure, integrate, test, deploy, and maintain complex application components. Design, develop, configure, test, and maintain Java application components. Build and maintain cloud-based microservices in Microsoft Azure. Develop interfaces, APIs, integration services, business logic, and database components. Participate in solution design and technical planning activities. Review code and provide practical feedback to development team members. Diagnose and resolve defects, performance issues, security concerns, and integration failures. Support continuous integration and deployment activities. Prepare and maintain technical documentation. Estimate development effort and contribute to sprint and release planning. Support testing activities, user acceptance testing, deployment, and implementation. Identify technical risks, dependencies, and opportunities for improvement. Provide technical leadership, guide development activities, and mentor team members. Required Qualifications Experience Experience developing and maintaining complex enterprise applications using Java. Experience translating technical specifications, user stories, and acceptance criteria into working software. Experience developing user interfaces, APIs, integration services, business logic, and database components. Experience building automated unit, integration, API, database, and UI tests. Experience developing and deploying cloud-based microservice architecture solutions in Microsoft Azure, including deployment pipelines, configuration management, and application monitoring. Experience reviewing code and enforcing development, security, documentation, and testing standards. Experience troubleshooting complex defects and resolving performance, reliability, and integration issues. Experience implementing secure coding practices and addressing identified vulnerabilities. Experience supporting deployments, production-readiness activities, and post-implementation stabilization. Demonstrated experience providing team and solution leadership. Experience mentoring developers and providing technical guidance within multidisciplinary teams. Software Development Experience (40%) Experience developing complex enterprise or public-facing applications. Experience implementing user interfaces, APIs, services, integrations, and database components. Experience applying object-oriented, structured, and Agile development methodologies. Cloud, Integration, and Deployment (25%) Experience developing and deploying applications in cloud-based environments. Experience with APIs, integration patterns, automated deployment, and configuration management. Experience supporting application monitoring and operational readiness. Testing, Security, and Quality (20%) Experience developing automated tests for user interfaces, APIs, and databases. Experience applying secure coding and code-quality practices. Experience troubleshooting defects and improving application performance and maintainability. Communication and Technical Leadership (15%) Experience providing technical guidance and conducting code reviews. Strong analytical, documentation, and problem-solving skills. Ability to communicate technical issues and recommendations clearly. Mandatory Requirements Must have experience leading teams and managing development teams. Demonstrated experience providing team and solution leadership, including guiding technical direction, coordinating development activities, and ensuring alignment with approved architecture and delivery objectives. Experience mentoring developers and providing technical guidance within multidisciplinary teams. Experience developing complex enterprise or public-facing applications. Experience implementing user interfaces, APIs, services, integrations, and database components. Experience developing and deploying applications in cloud-based environments. Experience with APIs, integration patterns, automated deployment, and configuration management. Experience developing automated tests for user interfaces, APIs, and databases. Ability to work onsite 5 days per week. Nice to Have Prior public sector experience. About Symbiotic Digital. Symbiotic Digital provides the IT Experts you need that solve problems and get things done. See what the top 2% in their field can do for you. (Symbiotic Digital is a division of Symbiotic Group Inc.) We serve customers in two ways, we provide: Digital Experts: IT Consulting expertise. Bright Minds That Produce Proven Results Recruitment: Find The Right People You Need Serving IT & Business leaders, Symbiotic Digital provides a business system that enable us to provide the Expert Technical staff needed to solve challenging business and IT problems. IT leaders in the most reputable organizations in Canada have relied on Symbiotic Digital to help them staff difficult assignments with proven Experts uniquely evaluated by our proven QMS- Quality Management System Staff Development Model. We are a 100% Indigenous owned company. Learn more online at https://www.symbioticgroup.com/home-sd/. Please submit your most recent resume to: RecDep@symbioticgroup.com View All Jobs online at: https://www.symbioticgroup.com/view-jobs/

What you’ll do

Requirements

Requires experience developing complex enterprise or public-facing applications, including Java, cloud-based solutions, APIs, integrations, databases, automated testing, and secure coding practices. Must have experience leading and managing development teams, mentoring developers, and working onsite five days per week.