Senior Java Voip/Sip Engineer - 911 Systems Hybrid-Montreal

About the job Sr. Java Developer VOIP/SIP Solutions
Senior Java Developer VOIP/SIP SolutionsLocation:
Hybrid Montreal, QC, CanadaIndustry:
Emergency Communications & Telecommunications SoftwareCompensation:
CAD $100,000 $120,000Application Deadline:
June 20, 2025We 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 SDLCDeep understanding of
VOIP and SIP protocol
development, including call flow logicPrevious experience working on
911 systems
or emergency call-routing platformsComfortable working in
Linux environmentsFamiliarity with
Agile/Scrum methodologies
and version control systems (e.G., Git)Effective communication skills and experience in cross-functional teamsPreferred Skills:Experience with
Spring Boot, .NET, React, or AngularKnowledge of databases such as
Oracle ,
SQL, or
NoSQLExposure to
cloud platforms
(Azure, AWS)Familiarity with
Infrastructure-as-Code
tools like TerraformBackground in
telecommunications or public safety systemsQualifications:Bachelors degree in Computer Science, Software Engineering, or equivalent professional experienceDesign, develop, and maintain software applications for emergency response systemsImplement and enhance
VOIP/SIP communication protocols
and call routing logicCollaborate with product managers, designers, and QA to align on technical and functional goalsWrite clean, maintainable code with proper documentationDevelop unit and integration tests and support QA with troubleshooting and defect resolutionUse Git and modern development tools to manage codebase effectively
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