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Senior Full Stack Developer - Express Scripts

Job in Mississauga, Ontario, Canada
Listing for: CA2 ESI Canada
Full Time position
Listed on 2026-07-19
Job specializations:
  • Software Development
    Full Stack Developer, Java Developer, Software Engineer, Backend Developer
Salary/Wage Range or Industry Benchmark: 100000 - 120000 CAD Yearly CAD 100000.00 120000.00 YEAR
Job Description & How to Apply Below

Job Title: Senior Full Stack Developer

Location: Mississauga
Employment Type: Full-time

Reason for Vacancy: Replacement

Work Arrangement: Hybrid
Department Name: NIHB Application Development Department

Pay Typed: Salaried

Pay Range: $100,000 - $120,000 annually

Please note that this is a general posting range and offer range will be varied based on relevant experience, qualifications, skills required and location for this role.

About Us

Express Scripts Canada (ESC) is the leader in health benefits management. Serving over 12 million members, we help insurance carriers, third party administrators, and the public sector optimize the value of health benefits by linking the talent and professional expertise of our people with leading edge

information management systems and technology. Express Scripts Canada is a wholly owned subsidiary of Express Scripts, one of the largest pharmacy benefit management (PBM) companies in North America, part of The Cigna Group (NYSE: CI), a global health company. Together, we deliver innovative,

cost-effective solutions that improve access, affordability, and health outcomes for Canadians.

Job Summary

Express Scripts Canada is actively looking to hire a Senior Full Stack Developer. The successful candidate will work closely with the business to define how best to address business challenges faced by our customers and our internal operations. The Senior Developer will clarify functional requirements and non-functional requirements and develop effective designs and implementation approaches for the delivery of business applications.

The Senior Developer will assure the quality of deliverables, ensuring that developed products are fit for use, supportable and maintainable.

Key Responsibilities

  • Work with Information Systems and Business to evaluate user requests, clarify objectives and functional requirements for new or modified computer programs. Assist in determining feasibility, time requirements, compatibility with current system and system capabilities.

  • Work with project team to formulate detailed program specifications using analysis and design methodology. Assists with definition and implementation of applications in a multi-platform distributed environment.

  • Write documentation describing program development, logic, coding, and corrections, may develop user manuals and operating procedures, provide research and follow-up on production problems and may train users and provide technical assistance to resolve application and operating issues.

  • Monitor ongoing performance of systems and develop updates or modifications according to business needs. Work with end users to provide production operation support including system setup and processing and data extraction.

  • Provide off-hour support with on call rotation.

  • Code new or modified computer programs into existing systems and test program effectiveness. Evaluate error messages, modify codes and troubleshoot programming problems.

  • What We’re Looking For

  • Post-secondary degree in Computer Science, Information Systems or related field or equivalent work experience

  • Experience working with software development teams

  • 7-10 years of experience in Information Systems

  • Minimum 5 years of experience in developing microservices application specifically Java and Spring Boot (SOAP & RESTFUL), Spring, Apache, IDE Tools (Intellij, VS Code), HTML, Java Script

  • Minimum 3 years of experience in developing Single Page Application (GUI) using Java script framework like Angular, React etc.

    Programming: J2EE, JPA, JAVA Web Services (RESTFUL) Spring Framework, Angular, Maven

    Knowledge of Jira, Confluence, Git Hub

    Databases: Relational Database Systems (ideally Oracle, PL/SQL, SQL Queries)

    Operating Systems: Linux, HP-UX or Unix variant, MS Windows

    Experience in multi-platform distributed environment, web-based architectures and Micro services

    Familiarity with standard design patterns and UML

    Experience with CI/CD Automation Process

  • 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…

    Position Requirements
    10+ Years work experience
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