Senior Full Stack Software Developer

Cynet systems Inc; Toronto; On-site; CAD 100,000 - 130,000; Full time

Job summary

A leading technology firm in Toronto is seeking a Senior Full-Stack Developer to support and enhance complex applications. The ideal candidate will have extensive experience in ASP.Net Core and React, along with a strong background in microservices and cloud technologies. This role requires the ability to analyze and implement technical solutions, ensuring compliance with industry standards. Join a dynamic team focused on innovative software development.

Qualifications

• 10+ years supporting and maintaining complex applications using ASP.Net Core, React, Spring Boot, Azure SQL, MySQL.
• 5+ years migrating legacy applications to Microservices, Docker, Kubernetes, REST APIs.
• 3+ years DevOps experience including GitHub and automated deployment pipelines.
• Strong knowledge of Agile/Scrum SDLC methodologies.

Responsibilities

• Support, maintain, and enhance large, complex applications.
• Analyze business and technical changes and design solutions.
• Conduct unit testing and support user acceptance testing.
• Implement code changes for UI, middleware, and other components.

Skills

ASP.Net Core

React

Spring Boot

Microservices architecture

Docker

Kubernetes

REST APIs

DevOps practices

Agile/Scrum SDLC methodologies

Education

Bachelor’s degree in Computer Science, Information Technology, or related field

Tools

Visual Studio

Power BI

GitHub

Job description

Job Description

• The Senior Full-Stack Developer will be responsible for supporting, maintaining, and enhancing large, complex, legacy, and cloud-based applications.
• The role requires expertise in ASP.Net Core, React, Spring Boot, Azure SQL, MySQL, Microservices architecture, Docker/Kubernetes, REST APIs, and DevOps practices.
• The candidate will analyze business and technical changes, design and implement solutions, conduct testing, and support deployment in alignment with Public Sector Health IT standards and enterprise architecture practices.

Responsibilities

• The role will support, maintain, and enhance large, complex, legacy, and cloud-based applications.

Analysis

• Identify and document impacts of business and technical changes (Risk Mitigation, AODA compliance, Microservices migration, vulnerability patching, version upgrades).
• Analyze impacts on UI, middleware, database, reporting, security, authentication, and authorization components.
• Estimate implementation time and validate project plans, sprints, and test plans.
• Update DevOps repositories and ensure QA targets are met.

Design

• Document and validate design changes to UI, middleware, database, reporting, and security components.
• Identify test cases for change validation and gain team consensus on system design.

  Implementation

  • Implement code changes for UI, middleware, database, metadata, and reporting components; conduct unit testing.
  • Update application security (SSO, user authentication/authorization) per design.
  • Create Docker images and update DevOps repositories.
  • Package and document solutions for deployment to Test environment and document Release Change List.

  Testing

  • Perform unit testing locally and integrated testing in the test environment.
  • Support user acceptance testing (UAT) and production promotion.
  • Analyze server and database log files to identify and resolve issues.

  Must-Have Skills And Experience

  • 10+ years supporting and maintaining complex applications using ASP.Net Core, React, Spring Boot, Tomcat, Azure SQL, and MySQL.
  • 5+ years migrating legacy applications to Microservices, Docker, Kubernetes, REST APIs, API Gateway, JSON, and Message Bus.
  • 5+ years developing and maintaining REST APIs, Hibernate/NHibernate applications, and secure user authentication/authorization with Azure Entra.
  • 5+ years building UI with React, HTML, and JavaScript.
  • 3+ years integrating third-party tools for reporting, email, or other functionalities.
  • 3+ years DevOps experience including GitHub, automated deployment pipelines, dashboards, and testing tools.
  • 2+ years developing and maintaining Power BI operational reports on Azure.
  • 5+ years ensuring security, authentication, and authorization compliance.
  • Strong knowledge of Agile/Scrum SDLC methodologies.
  • 1+ year experience with Copilot.

  Core Skills

  • Technical analysis, coding, debugging, and optimization of large-scale applications.
  • Developing scalable solutions on the cloud using managed services.
  • Deployment using YAML, Docker, and Azure Kubernetes Service (AKS).
  • Experience in log analysis, dependency management, and conflict resolution in Docker images.
  • Proficiency with development tools like Visual Studio, Spring, DevOps, Docker Pro, and ER Diagrams.
  • Conducting technical evaluations, gap analysis, and integration assessments.

  General Skills

  • Strong critical thinking, analytical, and problem-solving abilities.
  • Excellent verbal, written, and consulting communication skills.
  • Proven ability to build strong stakeholder relationships and provide exceptional customer service with tact and diplomacy.

  Education

  • Bachelor’s degree in Computer Science, Information Technology, or related field (preferred).