Junior Full Stack Developer - Express Scripts

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, Java Script

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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