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4.0 - 7.0 years
7 - 11 Lacs
Bengaluru
Work from Office
Date 10 Jun 2025 Location: Bangalore, KA, IN Company Alstom Req ID:487687 We create smart innovations to meet the mobility challenges oftoday and tomorrow. We design and manufacture a complete range of transportation systems, from high-speed trains to electric busesand driverless trains, as well asinfrastructure, signalling and digital mobility solutions. Joining us meansjoininga truly global community ofmore than 75000 people dedicated to solving real-world mobility challenges and achieving international projects with sustainable local impact. JOB PURPOSE Reporting to IS & T Network Operations manager the Network Analyst(WAN Engineer) will assist the Network operations team for end to end management of all CPA WAN links underSDWAN platform . The Network WAN Engineerwill be responsible to work along with the team to come up with operationalenhancements at the right time to accelerate the Network Operations team inproviding excellent service to Business. 1. Should have work experience in dealing with day to day Telco / ISP service Provider for Circuit Issues for an Enterprise network. 2. Work hand in hand with Alstoms MSP in identifying circuit related issues. 2. Day to DayNOCOperations. 3. Manage Outages in the Network and push Providers to fix circuit related issues within SLAs 4. Handle Escalations on time to ensure with Minimal Turnaround time. 5. Maintain the Uptime of the network at 100%. 7. Should Monitor the Network and help in planning maintenance activities ( via changes ) timely as notified by different Telco vendors . 8. Should work on building redundancy and elimination of Point of Failures. 9. Should work on Bandwidth Management and Traffic Load Balancing Mechanism whenever applicable. 10.Provide backend support to cross functional teams for new provisioning and Fault Repair. 11.24 * 7 Rotational shifts 12. Should be Responsible for Inventory Management. 14. Prepare and Maintain SOPs of critical Process; perform Process Correction on requirement basis. 15. Should analyze fault trends and plan preventive actions. 16. Should be Responsible for publishing of daily, weekly, monthly reports and statistics reports. MAIN CHALLENGES OF THE ROLE In this context the management of the end to end processes will rely on a multi-supplier ecosystem to coordinate with. The Operations team will have a critical roleto ensure business continuity for around 60,000 employees PROFILE Technical 1. Should have Good Knowledge of Routing & Telco related troubleshooting & debugging 2. Hands-on experience of BGP, MPLS, MPLS L2VPN, MPLS L3VPN, ISIS, OSPF, VLAN, DHCP, PPPoE, WAN, NAT , SDWAN etc 3. Should have worked in Layer-2 and Layer-3 Switches, Edge Routers; preferably on Cisco and Velocloud VCEs. 4. Should have worked on NMS Tools and have understanding of SNMP Protocol. 5. Should have Good understanding of Fiber Technology. 9. Must have donepreferably a Bachelors Degree or Diploma in Computer applications. 10. CCNACertification is Preferred. Communication, leadership, interpersonal and teaming skills Strong oral and written communication skills Strong listening, feedback, negotiation and conflict resolution skills Ability to build trust and work collaboratively Effectively communicate at the business stakeholder, process and technical levels High level of initiative, self-motivation, resourcefulness, collaboration and patience Builds strong networks within and across functions / geography instill a level of confidence in team members and key stakeholders Displays consideration and respect for others Facilitates effective team interaction Acknowledges and appreciates each team member's contributions Manages stakeholder expectations effectively Work management, organization and planning Focuses on the most critical issues that have the highest impact on the organization and business needs Works effectively with ambiguity / fluctuating priorities and constraints Able to manage multiple initiatives with short and long term priorities Able and willing to be hands on and get involved in detail if necessary Customer and Business focus Strong orientation towards internal customers Ability to successfully implement change through relationships built on a local, regional and global level Values and Ethics Self-motivated, self-guided and results-oriented Ability to maintain a high level of confidentiality Treats all others with respect; generates trust and performs role with highest level of integrity Seeks to exceed expectations and acts on feedback An agile, inclusive and responsiblecultureis the foundation of ourcompanywhere diverse people are offered excellent opportunities to grow, learn and advanceintheir careers.We are committed toencouragingour employeesto reach their full potential,while valuing and respecting them as individuals. Job Type:Experienced
Posted Just now
10.0 - 18.0 years
22 - 32 Lacs
Bengaluru
Hybrid
CommunicationApplication Role purpose: Operating within B_VOIS, this position will perform a combination of Voice and Networks implementation work, as well as enhancements to current products. The core activities include customer liaison, Diagnosis, Audits, investigation into vulnerabilities, planning and implementing of change and offering technical advice/ support to customers. You will be a proven trouble-shooter with an excellent understanding of the network elements with strong analytical networking skills, ideally with a cross skill of Voice and Network devices products AudioCodes, Cisco, Microsoft, IPC Unigy, Genesys etc. This position is responsible for the support of the production environment which ensures the appropriate voice/network policies and practices are implemented and enforced. End-to-end management of customers voice networks and providing a rapid response to customer raised incidents and problems. Drive technical service improvements post major incidents & outages by liaising with Major Incident teams, Problem management team as well as the core network and service support teams that site across the different groups within the organization. Support the customer front ending teams like Intelligent Ops, Service Management & GAMs within the account for any chronic technical issues and support with a robust action plan to be driven either through Vodafone operations, OLO or any external or internal agency. Run network audits in order of preference & requirement for the customer based on historical issues and/or on back of incidents to improve services and ensure repetitive issues are avoided. To engage with the partners like Cisco, AudiCodes, Tecnomics and others wherever required to drive enhancements to the services we offer to customer. Liaise with different teams and vendors for vendor driven changes and validate the change/implementation plans and provide technical authorization on the plans Work with project teams for new opportunities or sites/service onboarding design and implementation Manage customer/stakeholder communication for any Service improvement plan, major incident investigation or any new opportunity designing and implementation Essential: L3 level Voice Engineer having 10+ years of work experience in voice networks. Expertise in managing voice protocols such as SIP, H.323, ISDN, E1/T1 and AudioCodes SBC and its managing platform OVOC. Desired: Work experience / knowledge of multiple ITIL disciplines and AudioCodes/CCNP Collaboration certified. Essential: Engineering Graduate (with specialization on Electronics & communication/Information Technology/Computer application/Relevant streams Good Understanding of Networking, IT/Telecom processes & products Good understanding of ITIL Understanding of Network / IT / Telecommunication products and solutions.
Posted 2 weeks ago
3.0 - 6.0 years
1 - 5 Lacs
Bengaluru
Work from Office
This role involves the development and application of engineering practice and knowledge in the following technologies Standards and protocols, application software embedded software for wireless and satellite networks, fixed networks enterprise networks connected devices IOT and device engineering, connected applications 5G edge, B2X apps and Telco Cloud, Automation and Edge Compute platforms. This role also involves the integration of network systems and their operations, related to the above technologies. Primary Skill Good inter communication skills with hand-on experience in C, SIP protocol & Linux commands/usages. Experience- 5+ Years
Posted 3 weeks ago
4 - 9 years
15 - 30 Lacs
Bengaluru
Work from Office
Position: Cloud Backend Engineer Telecom domain Location Bangalore (Hybrid mode ) Experience level : 5 to 10 years Immediate joiners Please share your updated resumes to kjallepalli@innominds.com How You Will Contribute Lead the design and development of Voice Services over NB-IoT. Build and optimize Voice Gateway signalling components and media session setup. Implement CSFB-SS7 (I1 protocol) for integration with NTN carriers and 3GPP IMS Core. Develop scalable Voice Gateway Server with CSFB-I1 and SIP/SDP interworking functions. Integrate third-party SIP/SDP protocol stacks for seamless operation. Focus on optimizing voice services for low-bandwidth networks. Support thousands of SIP sessions with interworking to MNO SBC and IMS networks. Define and execute test cases, automation, and code coverage with QA teams. Oversee build and deployment processes using Jira, Jenkins, GCR/GKE. Ensure security best practices in development and deployment. Collaborate with platform engineering and cross-functional teams for streamlined development. Establish disciplined processes for timely, high-quality software delivery with robust testing. What We Look For 8+ years of experience in software development using OOP and microservices. Bachelor's or Master's degree in Computer Science, Engineering, or related field. Expertise in CSFB, I1, SIP signaling, and 3GPP IMS standards for telephony services. Skilled in building SIP-based solutions using SIP stacks for proxy clients and B2B servers. Hands-on experience with VoIMS and SIP/IMS network implementation. Proficient in tools like SIPP and FreeSWITCH for test environments. Programming expertise in C/C++, Go, or Java with strong SQL schema and query skills. Knowledge of stream processing (GCP Pub/Sub, Kafka) and REST API design. Experience with scalable distributed systems and horizontal scaling. Familiar with Kubernetes, Docker, Jenkins pipelines, and GCP tools. Strong understanding of code quality, performance metrics, and CI/CD tools (e.g., JMeter, Postman, Grafana, Prometheus). Collaborative team player with excellent communication skills. Please share details below for the next steps Fullname: Contact number Email id Current Company Reason for the change in the detailed How many companies worked with Current CTC. Expected CTC Any offers in hand / Pipeline Notice period Education details Current location Preferred location
Posted 1 month ago
5 - 10 years
10 - 20 Lacs
Bengaluru
Remote
We have an great opportunity for the role of SIP Developer. Relevant Exp : 5+ Yrs Must-Have Skills: Strong experience with SIP protocol (INVITE, ACK, BYE, REGISTER, REFER, OPTIONS, etc.) Practical experience with SIPREC for recording VoIP calls. Solid development skills in JavaScript (Node.js). Experience working with SIP Servers (e.g., FreeSWITCH, Asterisk, Kamailio, OpenSIPS). Hands-on knowledge of WebRTC, RTP streams, and VoIP media handling. Experience building and consuming RESTful APIs. Familiarity with call flows, SIP traces analysis (using Wireshark, sngrep, or similar). Strong understanding of networking basics (UDP, TCP, NAT traversal, STUN/TURN). Ability to troubleshoot and debug complex telephony and media issues. Thanks and Regards, Harshali Dhobale iitjobs, Inc. Register for a global opportunity on the world's first & only Global Technology Job Portal: www.iitjobs.com Download our app on the Apple App Store and Google Play Store! Refer and earn 50,000!
Posted 1 month ago
8 - 13 years
10 - 17 Lacs
Chennai, Bengaluru
Work from Office
Skills : NMS/ EMS(Protocols like SNMP, NETCONF, YANG, REST API applications, Core Java, Spring boot, hibernateNotice Period: 0- 45 days
Posted 2 months ago
5 - 8 years
10 - 20 Lacs
Chennai
Work from Office
Hi All, Ltimindtree hiring for Voip Developer Exp- 5 to 8 yrs Location-Chennai Notice period -0 to 30 days Mandatory Skills : C/C++ along with Voip Developer experience Job Description- Candidate Responsibility /SCOPE: Activities: • Design and development for VoIP service in ONTs/Home devices. • Support and maintenance Deliverables : • Feature development • Bug fixing • New feature • Unit testing • Functional testing. 2. Key Competencies & Experience: JD Voice Development Strong development & debugging understanding on C / C++ in multi process/ threaded environment with following skills Strong understanding on VoIP(SIP/H248), T38 , SIP over TCP, VoLTE, voice quality/QoS, DSP ,Voice codecs, RTP/RTCP, RFC2833 and Management protocols: OMCI, TR098/TR104. Good Understanding RJ11, Z-interface specs. Well versed with debugging tools like SIPP, Wireshark, Valgrid, SIPP Tool, Valgrind Memory Profiling Tool, GDB. understanding different SoC Architecture including 32 bit, 64bit and respective tool chains and able to collaborate with different Vendors to make the solution up and running. strong understanding on Linux , IPC techniques, user space and kernel space deep understanding and good understanding on network architecture is preferred Understanding of IPV4/IPV6 addressing and TCP/IP and basic understanding of L2/L3 routing. Working on GPON technologies is added advantage. Regards Richa
Posted 2 months ago
2 - 6 years
12 - 14 Lacs
Hubli, Mangalore, Mysore
Work from Office
Ribbon helps the worlds leading communications service providers and enterprises embrace the next generation of communications technologies including, cloud-based communications ("Cloud"), Internet Protocol ("IP"), Session Initiation Protocol ("SIP"), Voice over LTE Long Term Evolution ("VoLTE"), Voice over Internet Protocol ("VoIP"), Unified Communications ("UC"), Web-based Real Time Communications ("WebRTC"), Edge Computing, Software-Defined WAN ("SD-WAN"), Analytics, Applications Programming Interfaces ("APIs") and Embedded Communications. Candidates with 2 to 6 years of experience from a CSE/ECE/EEE background. Strong understanding of SIP protocols and VoIP technologies. Proficiency in automation scripting using Python, Shell, and Perl. Excellent problem-solving and debugging skills. Experience with CI/CD pipelines and tools like Jenkins, Git, or similar. Knowledge of containerization technologies like Docker and orchestration tools like Kubernetes. Understanding of network protocols and security best practices.
Posted 2 months ago
5 - 9 years
18 - 33 Lacs
Bengaluru
Hybrid
Preferred candidate profile C++ development experience in linux environment for more than 5 years must have experience in SIP/VOIP
Posted 3 months ago
5 - 6 years
7 - 8 Lacs
Gurgaon
Work from Office
About The Role : We are looking for resources who have Very strong experience in C++ Development and Troubleshooting skills for our project. Strong C++ development with python experience andTroubleshooting skills(Who can be able to take care of troubleshoot issues live and do the logs analysis. Excellent understanding of troubleshooting and debugging Experience in Linux commands , Github , wireshark ,jenkin etc Experience in Agile methodology , JIRA Good Experience in Telecom/Networking Domain/SIP Protocol Notice Period Required :Max.30 days(Official NP) Mode of Work :Hybrid(3 Days WFO) Primary Skills Strong C++ development with python experience andTroubleshooting skills(Who can be able to take care of troubleshoot issues live and do the logs analysis. Excellent understanding of troubleshooting and debugging Experience in Linux commands. Good Experience in Telecom/Networking Domain/SIP Protocol
Posted 3 months ago
3 - 4 years
5 - 6 Lacs
Pune
Work from Office
Job Purpose VoIP Infrastructure Design & Maintenance: oConfigure, deploy, and maintain FreeSWITCH and Kamailio-based systems. oDesign scalable and reliable VoIP architectures to support business needs. oImplement call routing, DID management, and trunk configurations. SIP & Call Routing: oDevelop and manage SIP-based call routing for internal and external communication. oTroubleshoot SIP signaling issues using tools like Wireshark or sngrep. oOptimize routing rules for least-cost routing (LCR) and high availability. Monitoring & Performance Optimization: oMonitor VoIP systems for performance, security, and uptime. oConduct capacity planning and optimize system resources. oImplement call quality monitoring tools (e.g., RTCP, QoS metrics). Collaboration & Support: oWork with cross-functional teams to integrate VoIP systems with CRM and other platforms. oProvide Level 2/3 support for VoIP-related issues. oTrain team members on VoIP best practices and system usage. Security & Compliance: oImplement VoIP security measures to prevent fraud and mitigate risks. oEnsure compliance with industry standards and regulations (e.g., GDPR, HIPAA). oConfigure firewalls and SBCs for secure SIP trunking. Database & Messaging Integration: oIntegrate VoIP systems with databases like MongoDB and PostgreSQL. oLeverage Redis for caching and RabbitMQ for messaging queues. oImplement efficient data storage and retrieval mechanisms to support VoIP services. Programming & Scripting: oDevelop custom VoIP features and modules using languages like Golang, Lua, Python, C, and C++. oAutomate repetitive tasks and processes through scripting. oIntegrate WebRTC solutions for real-time communication. Duties and Responsibilities VoIP Infrastructure Design & Maintenance Monitoring & Performance Optimization Programming & Scripting Required Qualifications and Experience VoIP Expertise: oStrong hands-on experience with FreeSWITCH and Kamailio. oIn-depth knowledge of SIP protocols, RTP, and VoIP troubleshooting. oFamiliarity with codecs like G.711, G.729, Opus, etc. Networking Proficiency: oSolid understanding of networking concepts such as NAT, RTP, and STUN/TURN. oExperience with firewall configurations and SBCs. Development Skills: oProficiency in programming languages like Golang, Lua, Python, C, and C++. oExperience with WebRTC for real-time communication. oFamiliarity with database systems like MongoDB and PostgreSQL. oExperience with Redis for caching and RabbitMQ for asynchronous messaging. Tools & Platforms: oFamiliarity with monitoring tools like Homer, Grafana, or Nagios. oHands-on experience with cloud platforms like AWS, Azure, or Google Cloud. oProficiency in containerization tools like Docker and orchestration with Kubernetes. Soft Skills: oStrong analytical and problem-solving skills. oExcellent communication and documentation abilities. oAbility to work collaboratively in a team environment Educational Qualifications B-tech IT or CS
Posted 3 months ago
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