Job Description – Trainee VoIP Developer (Fresher)

Job Title: Trainee VoIP Developer

Experience: Fresher (0–1 Year)

Job Location: Bangalore, Karnataka

Employment Type: Full-Time / Trainee

Qualification: B.E./B.Tech/BCA/MCA/B.Sc. in Computer Science, Information Technology, Electronics, Telecommunications, or related field

Job Summary

We are looking for a motivated and enthusiastic Trainee VoIP Developer (Fresher) to join our software development and telecommunications team. The ideal candidate should have a basic understanding of computer networking, programming fundamentals, internet protocols, and Voice over Internet Protocol (VoIP) technologies.

The candidate will work closely with experienced VoIP developers and network engineers to develop, configure, test, and maintain IP-based voice communication applications and systems. The role provides hands-on exposure to SIP, RTP, IP-PBX systems, call routing, and real-time communication technologies.

Key Responsibilities

• Assist in developing, configuring, and maintaining VoIP applications and communication systems.
• Support the implementation of SIP-based voice communication solutions.
• Work with VoIP platforms such as Asterisk, FreeSWITCH, or Kamailio under technical supervision.
• Assist in configuring SIP trunks, extensions, call routing, and dial plans.
• Support the development and integration of VoIP APIs and telephony services.
• Help troubleshoot voice quality, call connectivity, and network-related issues.
• Assist in analyzing SIP signaling and RTP media streams.
• Participate in testing VoIP applications, softphones, and IP-PBX systems.
• Support integration of VoIP services with CRM, web applications, and backend systems.
• Write basic scripts and programs using Python, PHP, C, or C++ as required.
• Assist in monitoring call performance, latency, jitter, and packet loss.
• Collaborate with software developers, network engineers, and QA teams.
• Participate in debugging, testing, and resolving technical issues.
• Maintain technical documentation and configuration records.
• Follow VoIP security standards and software development best practices.
• Learn and implement emerging telecommunications and real-time communication technologies.

Required Skills

• Basic understanding of computer networking concepts.
• Knowledge of TCP/IP, UDP, DNS, and networking fundamentals.
• Familiarity with Voice over Internet Protocol (VoIP) concepts.
• Basic understanding of SIP and RTP protocols.
• Knowledge of Linux operating systems and basic commands.
• Basic programming knowledge in Python, PHP, C, or C++.
• Understanding of client-server architecture.
• Familiarity with IP addressing, ports, and network troubleshooting.
• Basic knowledge of database concepts and SQL.
• Strong analytical and logical problem-solving skills.
• Good communication and teamwork abilities.
• Willingness to learn VoIP platforms and telecommunications technologies.

Preferred Skills

• Basic familiarity with Asterisk or FreeSWITCH.
• Understanding of SIP signaling and call flows.
• Knowledge of IP-PBX systems and SIP trunking.
• Familiarity with WebRTC and real-time communication concepts.
• Basic knowledge of Wireshark for network packet analysis.
• Understanding of codecs such as G.711, G.729, and Opus.
• Familiarity with NAT, firewalls, and VoIP connectivity.
• Basic understanding of Linux shell scripting.
• Knowledge of REST APIs and third-party integrations.
• Familiarity with Git and GitHub.
• Understanding of call detail records (CDRs) and telephony logs.
• Academic projects or internships involving networking, telecommunications, or VoIP technologies.

Eligibility Criteria

• Fresh graduates in Computer Science, Information Technology, Electronics, Telecommunications, or related disciplines.
• Candidates from other educational backgrounds with relevant networking and programming skills may also apply.
• 0–1 year of experience.
• Basic understanding of networking, programming, and VoIP fundamentals.
• Strong interest in telecommunications and real-time communication technologies.
• Good analytical and troubleshooting abilities.
• Ability to work independently and collaboratively.
• Freshers with academic projects, internships, or relevant certifications are encouraged to apply.

Roles & Expectations

• Support VoIP application development and system configuration.
• Assist in implementing SIP-based communication features.
• Troubleshoot basic network and call connectivity issues.
• Complete assigned development and testing tasks within deadlines.
• Follow coding, networking, and telecommunications best practices.
• Collaborate effectively with development, network, and testing teams.
• Maintain proper documentation of technical configurations and activities.
• Continuously improve VoIP, Linux, networking, and programming skills.

Learning & Growth Opportunities

• Hands-on experience with VoIP application development and telecommunications systems.
• Exposure to SIP, RTP, WebRTC, and IP telephony technologies.
• Practical experience with Asterisk, FreeSWITCH, and Linux-based communication platforms.
• Opportunities to work with experienced VoIP developers and network engineers.
• Understanding of call routing, SIP trunking, and IP-PBX configuration.
• Exposure to real-time communication systems, API integrations, and network troubleshooting.
• Career growth opportunities in VoIP Development, Telecom Software Engineering, Unified Communications, Network Engineering, and Real-Time Communication Development.

Job Location: Bangalore, Karnataka

Experience Required: Fresher (0–1 Year)

Employment Type: Full-Time / Trainee

Freshers: Eligible to Apply