Developer / Senior Developer C++ SIP VOIP

Overview

We are looking for a Developers who can work on developing solutions in the UC (Unified communications) domain. As a developer, you will work with a team of highly talented engineers to design and implement features for Mitel's flagship PBX / Call Manager solution to enable seamless enterprise communications and must have excellent performance optimization and troubleshooting skills.

Responsibilities

Developer would be responsible for the SW components which are involved in processing of VoIP calls (signaling and media) on an embedded system. This includes the development of new components as well as the maintenance of the existing SW components.

This includes the Call Manager, the resource administration, the several protocol stacks (e.g. analogue, ISDN, QSIG, DECT, etc.) as well as the services which belongs to a modern Call Server, e.g. Voicemail, Conference Service etc.

Responsible for development of new components as well as the maintenance of the quality of existing SW components in the Mitel PBX / Call Manager solution.

Capable of working efficiently under pressure, Well organized, team player with a can-do attitude.

Must have excellent analytical, troubleshooting & problem-solving skills and be proficient at managing multiple tasks in a dynamic environment.

Ability to build quick prototypes for technology validations of VOIP features.

Ability to work in an Individual contributor role, meet deadlines, identify issues and resolve them independently with minimal supervision.

Enthusiasm and flexibility to work on a variety of projects as necessary, as well as the ability to rapidly acquire new domain familiarity is a must.

Ability to work in collaboration with other software developers and architects, and under the direction of team leads and managers and contribute to overall product and team success.

Self-motivated and can actively identify and assess opportunities to introduce new technologies into the development practices.

Requirements

Any Graduation or Post Graduation

3+ years of experience.

Excellent knowhow in Session Initiation Protocol - SIP (e.g. RFC3261, RFC3264, RFC3550, etc.)

Excellent knowhow in SIP features like the SUBSCRIBE / NOTIFY Framework used for BLF, Presence etc.

Excellent knowhow in Real Time Protocol – RTP (e.g. RFC3550, RFC3711, etc.)

Excellent knowhow in processing / handling of media streams on an embedded platform

Knowledge in implementing / designing telephony services like Conference Services, Voicemail-Services, Call recorders etc.

Base knowhow in Qualtiy of Services – QoS, Bandwidth Control (e.g. RTCP, etc.)

Excellent knowhow of ISDN Call processing, like Base Call and Supplementary Services

Excellent knowhow of ETSI or ITU-T standards in this area (e.g. Q.931, )

Excellent knowhow in all kind of telephony features like Enquiry, Call Waiting, Intrusion, Call Completion, Conference Call, Transfer Call etc.

Excellent analytical skills in the VoIP area for debugging and tracking down problems

Strong grasp and application of data structures and algorithms

Work within Agile software development methodologies such as Scrum and Kanban.

Experience with Software repositories like Jira and / or GitHub and / or BitBucket.

Defining and developing RESTFUL APIs is desirable.

Additional Skills (Advantageous)

Any hands-on experience in Embedded / Middleware technologies is a good-to-have

For more information, visit Why Mitel or follow us on LinkedIn here.

Mitel is committed to achieving workforce diversity and creating an inclusive working environment. Diversity makes sense for us, for our customers and for our future. We value different perspectives, skills and experiences, and welcome applications from all sections of the community.

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