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Job opportunity

Sr. Java Developer VOIP/SIP Solutions

Industry Professionals

Montreal, Quebec 100.000 - 120.000
About the job Sr. Java Developer VOIP/SIP Solutions

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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