Software Developer - Senior

Job Title: Software Developer - Senior
Location: Toronto, Ontario
Work Model: Onsite
Duration: 12 Months
Extension: up to 2 extensions
Security Clearance: CRJMC
Submission Deadline: 2026-07-10, 12:00 p.m. EST

Mandatory Skills

• 10+ years' experience in developing n-tier Enterprise applications
• Expertise in application design, latest design patterns, deployment and troubleshooting
• Expertise in JPA or Hibernate, and Spring Boot Framework
• Proficient in database design and SQL development, with solid expertise in PostgreSQL, PL/pgSQL, Azure Cosmos DB
• JavaScript / TypeScript frameworks such as React, Angular
• Experience gathering and documenting requirements from business stakeholders
• Strong analytical, problem-solving, and communication skills

Nice to Have Skills

• Experience building cloud-native, internet-facing applications
• Agile development experience - Scrum, User Stories, CI, and test automation etc.
• Experience with middleware, API gateways, or integration services
• Experience leading design walkthroughs and technical discussions
• Knowledge of Accessibility for Ontarians with Disability Act (AODA) and WCAG standard
• Strong verbal and written communication skills with ability to contribute to technical leadership and quality assurance

Description / Responsibilities / Skills

Onsite Work Environment

This position is listed as "Onsite"; the resource is expected to work 7.25 hours per calendar day between the standard working hours of 8:00-5:00 PM (excluding lunch breaks) every Monday to Friday inclusive at the identified OPS office location.

Responsibilities

Required to translate technical systems specifications into working, tested applications.

This includes:

• Developing detailed programming specifications
• Writing and/or generating code
• Compiling data-driven programs
• Maintaining and conducting unit tests
• Resolving and troubleshooting technical problems which arise during the use and operation of software packages
• Providing technical assistance in implementation, conversion and migrations

Additional Responsibilities:

• Translate business requirements and technical specifications into scalable, secure, and fully tested full-stack applications
• Develop detailed technical designs and programming specifications
• Write, review, and maintain clean, efficient, and maintainable code following best practices
• Build and enhance data-driven applications and backend services
• Design and execute unit, integration, and end-to-end tests to ensure quality and reliability
• Design and implement modern, responsive frontend components using React
• Develop robust backend services and APIs using Spring Boot
• Build and maintain RESTful APIs and microservices architectures
• Troubleshoot and resolve technical issues across development, testing, and production environments
• Support application deployment, data migration, and system integration activities
• Collaborate with cross-functional teams through code reviews, design sessions, and Agile ceremonies
• Ensure all solutions meet security, performance, scalability, and accessibility standards (AODA compliance)
• Contribute to continuous improvement of development processes, tools, and standards
• Provide technical support for implementation, system integration, data conversion, and migration activities

General Skills

• Experience in programming and analysis
• Specialized software package support at the specified experience level
• Ability to collaborate with IT Professionals throughout the Software Development Life Cycle
• Experience in structured methodologies for the development, design, implementation and maintenance of applications
• Experience in design, code, test, debug and document applications
• Experience in the use of object and/or third generation language development tools
• Experience in one or more programming languages
• Experience in application design, latest design patterns, deployment and troubleshooting
• Experience with relational and hierarchical database technologies
• Experience in the use of information retrieval packages using query languages
• Experience with one or more communications protocols
• Experience eliciting and documenting information from diverse business area stakeholders and subject matter experts
• Excellent analytical, problem-solving and decision-making skills
• Verbal and written communication skills
• Interpersonal and negotiation skills
• A team player with a track record for meeting deadlines

Desirable Skills

• Knowledge and experience with programming Internet-ready applications
• Knowledge and experience in rapid application development (RAD) methodologies
• Knowledge and understanding of Information Management principles, concepts, policies and practices
• Experience with middleware and gateways
• Experience reviewing, analyzing, and modifying product installation scripts including encoding, testing, debugging
• Ability to provide post-implementation support and resolve any post-implementation technical issues
• Experience conducting design walkthrough sessions with project team
• Knowledge and understanding of Accessibility for Ontarians with Disability Act (AODA) and related regulations and standards
• Familiar with the Payment Card Industry Data Security Standard (PCI DSS)
• Ability to provide user and system documentation as required

Evaluation Criteria

Backend Development (Java / Spring Boot / Spring / Integration) – 30%

• 8–10+ years' experience developing n-tier enterprise applications
• Strong hands-on experience with Spring Boot and the Spring Framework (Core, MVC, Security, Data, Batch)
• Proven experience designing and building RESTful APIs
• Demonstrated expertise in application architecture, design patterns (MVC, Security, integration patterns), and performance optimization
• Experience implementing and managing caching solutions using technologies such as Redis
• Experience integrating with enterprise systems and service integration platforms or integration hubs
• Proven ability to deliver secure, scalable, and production-ready backend solutions
• Strong experience with unit testing and integration testing

Frontend (React / Angular) – 20%

• Strong experience with modern frontend frameworks such as React and/or Angular
• Proficiency in JavaScript and TypeScript (ES6+) for building web applications
• Experience developing responsive, accessible, and user-friendly interfaces (AODA/WCAG awareness)
• Proven ability to implement component-based architecture and reusable UI components
• Experience integrating frontend applications with RESTful APIs and backend services
• Understanding of frontend performance optimization, state management, and application scalability

Database & ORM – 15%

• Strong experience with PostgreSQL and SQL, Azure Cosmos DB
• Experience in schema design and normalization, query optimization and indexing and writing database functions (PL/pgSQL preferred)
• Hands-on experience with ORM frameworks, JPA, Hibernate and MyBatis
• Experience integrating ORM frameworks with backend services
• Experience supporting data-driven applications

Cloud Platform (Azure) – 20%

• Demonstrated experience with Azure services such as:
  • Azure App Services
  • Azure Functions
  • Azure Storage
  • Azure Database for PostgreSQL
• Experience deploying and supporting cloud-native applications
• Understanding of scalability, monitoring, and cloud security

Test Automation & Quality Engineering – 10%

• Strong experience in test automation across unit, API, and end-to-end (E2E) testing
• Hands-on experience with unit testing frameworks such as JUnit 5 and Mockito
• Experience with frontend testing frameworks such as Jest
• Experience implementing end-to-end testing using tools such as Playwright or Katalon
• Experience with API testing automation and validation of RESTful services
• Experience applying Behavior-Driven Development (BDD) practices
• Proven ability to design, implement, and maintain automated test suites within CI/CD pipelines

Agile / Collaboration / Soft Skills – 5%

• Experience working in Agile/Scrum environments
• Strong communication and stakeholder engagement skills
• Participation in code reviews and design sessions
• Proven ability to work collaboratively and meet deadlines