Senior Developer - Telecom Mobile Test Probes

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Developer - Telecom Mobile Test Probes based in India. This is an exciting opportunity to build next-generation software for mobile network testing and integration. You will join a small, agile engineering team developing advanced test probe technology used by mobile operators around the world. The role focuses on creating solutions that simulate real mobile users across voice, SMS, data, and IoT services. You will work primarily with C++ and Linux while contributing to technologies spanning 4G, 5G, and modern mobile network architectures. Your work will directly help telecom customers validate, troubleshoot, and optimize service performance for subscribers and roaming users. The environment is highly technical, collaborative, customer-focused, and well suited to engineers who enjoy ownership and solving complex problems. Accountabilities Develop and enhance next-generation mobile test probe software supporting 4G, 5G, and IoT use cases.Build applications capable of simulating mobile users and services, including voice, SMS, and data traffic.Design and implement reliable, high-performance software primarily using C++ on Linux.Apply strong software engineering practices around data structures, multithreading, system design, and performance optimization.Work with mobile network signaling and integration concepts to ensure test solutions accurately represent real-world network behavior.Collaborate within a small Agile development team to deliver high-quality features and continuously improve the testing platform.Analyze complex technical and customer requirements, taking ownership of solutions from development through delivery.Troubleshoot software and network-integration issues and contribute to resolving challenging telecom testing scenarios.Maintain a strong customer focus by developing solutions that help mobile operators validate and optimize their services.Contribute to AI-driven development practices and explore innovative approaches to improve engineering productivity and solution quality. Requirements Bachelor’s degree in Computer Science, Software Engineering, or a related technical discipline.5+ years of professional software development experience, preferably within the telecommunications industry.Strong proficiency in C++, including solid knowledge of data structures and multithreaded programming.Strong Linux system knowledge and experience developing software in Linux-based environments.Solid understanding of the Radio Access Network (RAN) layer and the signaling and data exchange between mobile devices and network infrastructure.Good knowledge of mobile technologies including 3G, 4G, IMS/VoLTE, 5G, and IoT.Familiarity with mobile network signaling standards and protocols such as SIP, RRC, and NAS, as defined by 3GPP.Interest in and practical aptitude for AI-driven software development.Strong analytical, problem-solving, and communication skills, with the ability to work independently in a fast-paced environment.Experience developing against cellular modems, including AT commands, QMI, or modem vendor SDKs, is a plus.Experience with network monitoring tools and protocol analyzers such as Wireshark or QCAT is advantageous.Familiarity with scripting languages such as Lua, Shell, or Perl is beneficial.Knowledge of eUICC/eSIM and GSMA standards is a plus.Android development experience is desirable. Benefits Fully remote, full-time position based in India.Opportunity to work on cutting-edge 4G, 5G, and IoT telecommunications technologies.Exposure to sophisticated mobile network testing, modem communication, signaling, and telecom software.Opportunity to work within a small, Agile, highly technical engineering team.Strong opportunities to expand your expertise and develop your career in advanced telecom technologies.Work on solutions used by major mobile operators and contribute to impro