Job Title: Junior Full Stack Developer Location: Mississauga Employment Type: Full-time Reason for Vacancy: Replacement Work Arrangement: Hybrid, 2 days/Week on-site Department Name: PBM/HBM Application Delivery Department Pay Typed: Salaried Pay Range: $68,000 - $75,000 annually
Job Summary: Express Scripts Canada is actively looking to hire a Junior Full Stack Developer. The successful candidate will work closely with the business and will work in a team to create and maintain Express Script Canada’s various applications for the Private BU. The Junior developer will work in a team comprising of Business Analyst, Quality Assurance Analyst under the supervision of a Manager to design, code and maintain software. The primary responsibility of the Junior developer is to write code as per specifications, perform unit testing, provide support to Quality Analyst. The Junior developer is also expected to help in troubleshooting production issues under supervision and participate in on‑call maintenance roster.
Key Responsibilities
- Develop and maintain full‑stack applications using Java (Spring Boot) with strong focus on Oracle SQL/PL‑SQL and data processing
- Write efficient Oracle SQL queries, stored procedures, and triggers to support application and data workflows
- Contribute to database performance improvements and ensure data accuracy and integrity
- Work with senior team members to design and refine database schemas and understand execution plans for performance tuning
- Deploy, run, and support applications in Linux/Unix environments
- Write and maintain shell scripts to automate routine tasks and support system monitoring
- Collaborate with team members on project deliverables and follow guidance from senior engineers
- Communicate clearly within the team and provide timely updates on tasks and issues
- Participate in code reviews, write unit tests, and support manual/automation testing as needed
What We’re Looking For
- A post‑secondary diploma/degree in Computer Science, Computer Programming, or related field
- Minimum 3‑5 years of software development/Quality assurance experience
- Strong SQL skills and experience with relational databases (Oracle preferred) including writing complex queries and understanding indexing and performance basics
- Hands‑on with Linux/Unix, including shell scripting, file operations, and process monitoring
- Hands‑on technical experience in Java and good knowledge of its ecosystem
- Strong analytical and problem‑solving skills across applications, databases, and OS layers
- Basic understanding of front‑end technologies such as HTML5, CSS, JavaScript
- Experience using Git or similar version control tools
- Understanding of object‑oriented programming and common design patterns
- Understanding of JVM, its limitations, weaknesses, and workarounds
- Understanding of Spring/Spring Boot and related frameworks used for building enterprise applications
- Ability to write clean, maintainable, and reusable Java code
- Effective verbal and written communication skills, with the ability to work collaboratively across teams
Why Join Us
- Competitive compensation, benefits and pension plan
- Career development and advancement opportunities
- A culture that celebrates innovation and collaboration
- Flexible work options and wellness programs
Pre‑Employment Requirements: All offers of employment are conditional upon the successful completion of reference checks and background verification in accordance with company policy. Within ESC, for certain positions, obtaining and maintaining a federal government security clearance is a bona fide occupational requirement. Candidates applying for such roles must meet all eligibility criteria for the applicable clearance level and consent to the security screening process as mandated by federal regulations. Failure to obtain or maintain the required clearance will result in withdrawal of the offer or termination of employment. It will be a condition of employment that the successful candidate obtains an Enhanced Reliability Clearance from the Federal Government. The candidate will be required to provide supporting documentation to receive clearance if required.
We are an equal opportunity employer that promotes a diverse, inclusive and accessible workplace. By embracing diversity, we build a more effective organization that empowers our employees to be the best that they can be.
We are committed to creating a working environment that is barrier‑free and we are prepared to provide accommodation for people with disabilities.
NOTE: Internal candidates should apply before May 7, 2026.
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