Senior Developer - Telecom Mobile Test Probes

CSG Systems; Hinoba-an; On-site; PHP 1,000,000 - 2,000,000; Full time

Job summary

CSG Assure invites a Senior Developer to join a fast-moving, global telecom testing team. You will design and implement next-generation mobile test probes for 4G/5G and IoT, primarily in C++ on Linux platforms.

You will help validate voice, data and signaling paths for roaming subscribers and local users. The role requires deep systems knowledge, strong problem-solving and the ability to work independently in a high-paced environment.

Qualifications

• Degree in Computer Science or related field.
• 5+ years of professional software development experience.
• Strong C++, data structures and multi-threading.
• Linux system knowledge.
• Knowledge of 3G/4G/5G/IoT and signaling (SIP, RRC, NAS).
• AI-driven development aptitude.

Skills

C++

Data structures

Multi-threading

Linux

RAN knowledge

AI-driven development

Education

Completed Degree in Computer Science or related field

Tools

Wireshark

QCAT

Lua

Shell

Perl

AT commands

QMI

Job description

Are you passionate about software development for mobile network integration? Join our team to help take our telecom testing technology to new heights. The CSG Assure team is developing an advanced telecom testing software solution used by mobile operators across the globe, including leading operators like AT&T, Tata, Orange. CSG Assure is an artificial test traffic generation platform consisting of a cloud-based application, controllers and test probes located in around 200 countries globally. We are looking for a skilled developer to be part of our small, agile team to build applications that help our mobile operator customers validate and optimize mobile service performance for their roamers and local subscribers. You will develop our next-generation mobile test probe for 4G, 5G and IoT to simulate mobile users using voice, SMS and data services. Main development is done in C & C++ on Linux platform. We think that you are a highly skilled, analytical, customer-focused person with a strong developer profile that enjoys taking responsibility, making sure our customers get full value of our high-tech solutions.

Required Skills

• Completed Degree in Computer Science or related field
• 5+ years of professional experience in software development, preferably in telecom
• Strong proficiency in C++, data structures and multi-threading programming
• Linux system knowledge
• Solid understanding of the Radio Access Network (RAN) layer of mobile networks; the signaling and data exchange between devices and the network.
• Good knowledge of mobile network technologies (3G, 4G, IMS/VoLTE, 5G, IoT) and network signaling (e.g. SIP, RRC, NAS) as defined in 3GPP
• Talent for AI driven development
• Excellent Communication, problem-solving skills and ability to work independently in a fast-paced environment.

Bonus Skills

• Experience in development against cellular modems; experience with either AT commands, QMI, or modem vendor SDK
• Experience with network monitoring tools and protocol analyzers like Wireshark, QCAT
• Familiarity with scripting languages, e.g. LUA, Shell, Perl
• Understanding of eUICC/eSIM, GSMA standards
• Android development experience

Why should you apply?

Opportunity to work and grow your skillset in cutting-edge technologies

Key Words

Senior Developer, Software Engineer, Mobile Networks, C++, Linux, Modem Communication, Telecom Software

Location(s)

India

Guiding Principles

• Impact: Always help and empower others, whether they’re colleagues or customers. When our employees set their minds to something, great things happen.
• Integrity: Do what’s right for our customers and our people while being authentic. We treat everyone with trust and respect—that’s just who we are.
• Inspiration: Be bold in the way you think and passionate about the work you do. Test out innovative ideas without the fear of failure.

Our Story

CSG empowers companies to build unforgettable experiences, making it easier for people and businesses to connect with, use and pay for the services they value most. For over 40 years, CSG's technologies and people have helped some of the world's most recognizable brands solve their toughest business challenges and evolve to meet the demands of today's digital economy. By channeling the power of all, we make ordinary customer and employee experiences extraordinary. Our people [CSGers] are fearlessly committed and connected, high on integrity and low on ego, making us the easiest company to do business with and the best place to work. We power a culture of integrity, innovation, and impact across our locations, representing the most authentic version of ourselves to build a better future together. That's just who we are.

CSG empowers companies to build unforgettable experiences, making it easier for people and businesses to connect with, use and pay for the services they value most. For over 40 years, CSG's technologies and people have helped some of the world's most recognizable brands solve their toughest business challenges and evolve to meet the demands of today's digital economy. By channeling the power of all, we make ordinary customer and employee experiences extraordinary. Our people [CSGers] are fearlessly committed and connected, high on integrity and low in ego, making us the easiest company to do business with and the best place to work. We power a culture of integrity, innovation, and impact across our locations, representing the most authentic version of ourselves to build a better future together. That's just who we are. If not us, then who?

EEO and Equal Opportunity Statements

CSG is an affirmatively action, Equal Opportunity / Veteran / Disabled / Female / Minority / Sexual Orientation / Gender Identity Employer. CSG does not discriminate on the basis of age 40 and over, color, disability, gender identity, genetic information, military or veteran status, national origin, race, religion, sex, sexual orientation or any other applicable status protected by state or local law, are not taken into account in any employment decision.

CSG will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor’s legal duty to furnish information.

CSG provides accommodations for persons with disabilities in employment, including during the hiring process and any interview and/or testing processes.