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APPLICATION DEVELOPER

Publication Date:  Apr 22, 2025
Ref. No:  529602
Location: 

Navi Mumbai, IN

Eviden, part of the Atos Group, with an annual revenue of circa € 5 billion is a global leader in data-driven, trusted and sustainable digital transformation. As a next generation digital business with worldwide leading positions in digital, cloud, data, advanced computing and security, it brings deep expertise for all industries in more than 47 countries. By uniting unique high-end technologies across the full digital continuum with 47,000 world-class talents, Eviden expands the possibilities of data and technology, now and for generations to come.

 

We are seeking a Java Telecom Engineer to work on the development, integration, and transition. The role involves working with VoIP, SIP, RTP, XMPP, and emergency services protocols to ensure the seamless operation of next-generation 911 call-handling solutions.

 

Key Responsibilities:

  • Develop and integrate Java-based telecom applications.
  • Implement SIP-based VoIP solutions for emergency call routing.
  • Work with RTP/SRTP for secure audio/video streaming.
  • Integrate location-based routing (LoST, PIDF-LO, HELD) into NG911 systems.
  • Implement XMPP-based messaging for real-time emergency communications.
  • Secure telecom protocols using TLS, IPsec, HTTPS.
  • Work with MPLS networking, SS7 interworking, and NG911 ESInet.
  • Collaborate with GIS teams to support geospatial call routing.
  • Maintain and optimize low-latency, high-availability telecom systems

 

Skills & Experience:

  • 5+ years of experience in Java development for telecom systems & Public Safety Domain.
  • Strong expertise in SIP, RTP, SRTP, and WebRTC for VoIP call handling.
  • Experience with JAIN SIP, JSMPP, Smack API (XMPP), and Java Media Framework (JMF).
  • Hands-on experience with MPLS, IPsec, VPNs, and secure networking.
  • Understanding of NG911 standards (NENA i3), emergency call routing, and GIS.
  • Familiarity with SS7, ISUP, and PSTN to IP transition.
  • Strong experience in multithreading, performance tuning, and real-time systems.
  • Knowledge of cloud-based VoIP solutions (AWS, Kubernetes, Docker, OpenStack) is a plus.
  • Experience with SDN (OpenDaylight) for network traffic engineering is a bonus.

 

Preferred Qualifications:

  • Certifications in VoIP, SIP, or Cloud Telecom (Cisco, Avaya, AWS, etc.).
  • Experience working with GEMMA Core, Atos, Unify, or MyTel platforms.
  • Familiarity with emergency services regulations (FCC, NENA, EENA).

 

#Atos

 

 

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