Senior Full Stack Developer - Express Scripts
Listed on 2026-07-19
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Software Development
Full Stack Developer, Java Developer, Software Engineer, Backend Developer
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…
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