Lead Developer

Jobtailor; Chennai District; On-site; INR 3,800,000 - 6,000,000; Full time

Job summary

Jobtailor in India seeks an experienced software professional with telecom domain expertise to lead design, development, and optimization of core networks and VoIP components. You will mentor engineers and drive code quality improvements across teams.

Hands‑on coding in C/C++ or Java, Linux, and cloud‑native environments is required. A deep understanding of 3GPP standards, SIP, Diameter, and related call flows enables delivering scalable, secure applications.

Qualifications

• Graduate/PG in Engineering or equivalent with 10+ years of software development experience in telecom domain (2G/3G/4G/5G core, VoIP/VoWiFi).
• Hands-on development in C/C++ or Java with multithreading, IPC, and client-server architectures.
• Deep understanding of 3GPP standards (E-UTRAN, NG-RAN, IMS), SS7, Diameter, SIP, HTTP2, and location services (LCS).
• Expertise in Linux, SQL/NoSQL databases (MySQL, Redis, Cassandra), and cloud-native/containerized environments.

Responsibilities

• Application Development – Designing, coding, and implementing software applications.
• Ensuring scalability, security, and performance of applications.
• Working with cross-functional teams, including architects, product managers, and QA testers.
• Creating technical documentation for code, processes, and applications.
• Troubleshooting and resolving performance bottlenecks in applications.
• Mentoring and supporting developers to foster a culture of continuous improvement.
• Reviewing & optimizing applications code quality and performance.
• Participating in software architecture and design discussions, contributing ideas and solutions.
• Keeping up to date with emerging technologies, programming languages, and industry trends.

Skills

C/C++

Java

Multithreading

IPC

Client-Server

Linux

Databases

Cloud-native

Telecom domain

Education

Engineering degree

Tools

MySQL

Redis

Cassandra

Git

Job description

Responsibilities

• Application Development – Designing, coding, and implementing software applications.
• Ensuring scalability, security, and performance of applications.
• Working with cross-functional teams, including architects, product managers, and QA testers.
• Creating technical documentation for code, processes, and applications.
• Troubleshooting and resolving performance bottlenecks in applications.
• Mentoring and supporting developers to foster a culture of continuous improvement.
• Reviewing & optimizing applications code quality and performance.
• Participating in software architecture and design discussions, contributing ideas and solutions.
• Keeping up to date with emerging technologies, programming languages, and industry trends.

Requirements

• A Graduate / Post graduate in Engineering or equivalent with 10+ years of software development experience with strong telecom domain expertise in 2G/3G/4G/5G core networks, VoIP/VoWiFi, and related call flows/protocols.
• Hands‑on development experience in C/C++ or Java with strong knowledge of multithreading, IPC, and client‑server architectures.
• Deep understanding of 3GPP standards (E‑UTRAN, NG‑RAN, IMS), SS7, Diameter, SIP, HTTP2, and location services (LCS).
• Expertise in Linux, SQL/NoSQL databases (MySQL, Redis, Cassandra), and cloud‑native/containerized environments.

Core Competencies

Demonstrates extensive software development experience with a strong focus on telecom domain expertise, particularly in 2G/3G/4G/5G core networks and VoIP technologies. Proficient in application design, coding, and optimization, with a commitment to mentoring and fostering continuous improvement within development teams.