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Senior Java Developer to design, develop, and maintain open-source integrations using Spring and Spring Integration

Posted by S.i. Systems • Calgary, Alberta, Canada

📍 Calgary, Alberta 🕒 February 25, 2026
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About the Role

Initial 12-month contract (% Remote EST) with strong possibility of extension. 7.5 hours per day, Monday to Friday.

Responsibilities:

  • Design, develop, and maintain open-source integrations using Spring and Spring Integration, replacing existing MuleSoft-based integrations
  • Build and establish reusable integration frameworks and backend flows to support a large pipeline of upcoming integrations
  • Collaborate with a small development team to deliver secure, scalable integration solutions within a COTS application ecosystem (no development within the COTS platform itself)
  • Provide technical leadership and mentorship to two developers, acting as the senior Java resource on the team (~80% hands-on development / ~20% coaching)
  • Troubleshoot and optimize integration services, ensuring reliability and performance across operational platforms
  • Work closely with stakeholders to understand integration requirements and rapidly deliver...

    • Job Details

    • Location Calgary, Alberta
    • Job Type Contract
    • Category Computer Occupations
    • Posted February 25, 2026
    • Deadline April 06, 2026

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