Sr. Java Developer VOIP/SIP Solutions
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Senior Java Developer VOIP/SIP Solutions Location:
Hybrid Montreal, QC, Canada Industry:
Emergency Communications & Telecommunications Software Compensation:
CAD $100,000 $120,000 Application Deadline:
June 20, 2025 We are recruiting on behalf of a technology leader in
emergency response and telecommunications , developing next-generation 911 call-handling and VOIP solutions. Their software is used in mission‑critical environments where accuracy, speed, and reliability save lives. Based in Montreal, this organization is seeking an experienced
Senior Software Developer (Java)
to join their expanding engineering team. Must-Have Skills & Experience:
8+ years of professional software development experience (5+ is the minimum acceptable) Strong experience in
Java , with solid knowledge of the full SDLC Deep understanding of
VOIP and SIP protocol
development, including call flow logic Previous experience working on
911 systems
or emergency call‑routing platforms Comfortable working in
Linux environments Familiarity with
Agile/Scrum methodologies
and version control systems (e.g., Git) Effective communication skills and experience in cross‑functional teams Preferred Skills:
Experience with
Spring Boot , .NET, React, or Angular Knowledge of databases such as
Oracle ,
SQL , or
NoSQL Exposure to
cloud platforms
(Azure, AWS) Familiarity with
Infrastructure-as-Code
tools like Terraform Background in
telecommunications or public safety systems Qualifications:
Bachelors degree in Computer Science, Software Engineering, or equivalent professional experience Design, develop, and maintain software applications for emergency response systems Implement and enhance
VOIP/SIP communication protocols
and call routing logic Collaborate with product managers, designers, and QA to align on technical and functional goals Write clean, maintainable code with proper documentation Develop unit and integration tests and support QA with troubleshooting and defect resolution Use Git and modern development tools to manage codebase effectively
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