Senior Software Developer

S.i. Systems • Apex • 6 days ago
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Salary
≈ $71k – $127k per year (Estimated)
Location
In office (Edmonton)
Seniority
Senior
Employment
Contractor

First seen by Alion on Oct 20, 2026.

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S.i. Systems

S.i. Systems is one of Canada's largest IT staffing and talent recruitment agencies, specializing in contract staffing, direct-hire placements, contractor payrolling, and IT project solutions. Headquartered in Calgary, Alberta - with major offices across Toronto, Vancouver, Ottawa, and other key metropolitan centers - the firm connects organizations with highly skilled technology professionals across cybersecurity, software development, cloud infrastructure, enterprise systems, and data analytics. Backed by an extensive nationwide network of pre-screened IT contractors, it supports corporate and public sector clients navigating large-scale digital transformations and complex technical initiatives.
sisystems.com • HQ: Calgary, Canada • IT Staffing & Staff Augmentation • Information Technology • Professional Services • 1001-5000 employees • Est. 2006
Backed by TorQuest Partners

Our financial services client is seeking an SeniorSoftware Developer to modernize Salesforce and DocuSign integrations using Apex, REST APIs, and Lightning Web Components [2026-91]

 

Join a Salesforce-DocuSign API migration initiative focused on modernizing enterprise backend integrations within a banking environment. This role supports Apex refactoring, REST API modernization, webhook synchronization, and deployment readiness across integrated Salesforce workflows. The project includes updating legacy managed package mappings and validating bi-directional integrations between external platforms and Salesforce. There is potential for contract extension tied to upcoming team coverage needs.

 

Contract, Remote, Working Hours: MST


Must Haves

  • 7+ years developing with Salesforce Apex for backend integrations and data model refactoring
  • Hands-on delivery of REST APIs and modernization of SOAP integrations using Salesforce Named Credentials
  • Development of Lightning Web Components within Salesforce environments
  • Creation of Apex test classes and HTTP mock callouts supporting deployment readiness and integration validation

 

Nice to Have

  • Direct experience with DocuSign implementations
  • JSON/XML payload parsing and webhook synchronization between external platforms and Salesforce

 

Responsibilities

  • Refactor Apex classes, triggers, and batch jobs to align legacy managed package objects and fields with the target framework
  • Modernize SOAP API callouts and authentication mechanisms into REST integrations and Salesforce Named Credentials
  • Maintain bi-directional data flow between external platforms and Salesforce
  • Validate payload parsing and event/status listeners for integrated workflows
  • Develop Apex test classes and HTTP mock callouts for integration validation
  • Support deployment readiness activities ahead of code-freeze deadlines
Disclaimer:
AI may be used in evaluating candidates.
This posting is for an existing vacancy.
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