APPLICATION DEVELOPER
Atos
2 - 5 years
Mumbai
Posted: 14/07/2025
Job Description
About Atos
Atos is a global leader in digital transformation with c. 78,000 employees and annual revenue of c. € 10 billion. European number one in cybersecurity, cloud and high-performance computing, the Group provides tailored end-to-end solutions for all industries in 68 countries. A pioneer in decarbonization services and products, Atos is committed to a secure and decarbonized digital for its clients. Atos is a SE (Societas Europaea) and listed on Euronext Paris.
The purpose of Atos is to help design the future of the information space. Its expertise and services support the development of knowledge, education and research in a multicultural approach and contribute to the development of scientific and technological excellence. Across the world, the Group enables its customers and employees, and members of societies at large to live, work and develop sustainably, in a safe and secure information space.
Key Technical Skills & Responsibilities:-
• 5+ years of experience in C++ development, integration, and transition on OSS/BSS telecom systems.
• Strong expertise in CSTA, SIP, RTP, SRTP, and WebRTC for VoIP call handling.
• Lead the development of complex C++ modules and components related to network protocols, call processing, and data communications.
• Extensive experience with the Standard Template Library (STL)
• Proficiency in multi-threading and concurrency.
• Integrate location-based routing (LoST, PIDF-LO, HELD)
• Implement XMPP-based messaging for real-time emergency communications.
• Secure telecom protocols using TLS, IPsec, HTTPS.
• Collaborate with GIS teams to support geospatial call routing.
• Maintain and optimize low-latency, high-availability telecom systems
• Familiarity with SS7, ISUP, and PSTN to IP transition.
Preferred Qualifications:-
• Certifications in VoIP, SIP, or Cloud Telecom (Cisco, Avaya, AWS, etc.).
• Familiarity with services regulations (FCC, NENA, EENA).
Our Offering:-
- Global cutting-edge IT projects that shape the future of digital and have a positive impact on environment.
- Wellbeing programs & work-life balance - integration and passion sharing events.
- Attractive Salary and Company Initiative Benefits
- Courses and conferences.
- Attractive Salary.
- Hybrid work culture.
About Company
Atos is a global leader in digital transformation headquartered in Bezons, France. Founded in 1997, the company offers a wide range of IT services including cloud computing, cybersecurity, AI, data analytics, and high-performance computing. Atos serves clients across industries such as public sector, healthcare, defense, finance, and manufacturing, with a strong footprint in Europe.The company is well known for managing IT systems for the Olympic Games, ensuring real-time data processing and cybersecurity. Atos has over 100,000 employees in around 70 countries and has recently undergone strategic restructuring, leading to the spin-off of its digital, cloud, and big data business under the brand Eviden. This move aims to sharpen its focus on next-gen digital services and innovation.
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