O-RAN/ 5G Software Engineer

Important: This position requires U.S. citizenship and the ability to obtain and maintain a U.S. Government security clearance.

Our client is building the next generation of intelligent wireless networks — combining Open RAN architectures, RF machine learning, and cybersecurity to solve problems that don't yet have off-the-shelf answers. We're looking for a hands-on software developer who wants to write real code against real hardware, not just sit in meetings about it.

This is an execution role: you'll be building, integrating, and testing software for O-RAN and Beyond 5G (B5G) systems — developing xApps/rApps, working directly with software-defined radios and wireless testbeds, and applying RFML techniques to spectrum awareness, anomaly detection, and network security. If you like taking a concept from the whiteboard to a working prototype, this is the job for you.

What Makes You a Strong Fit

● Hands-on experience with O-RAN architectures, interfaces, or systems

● Background in Radio Frequency Machine Learning (RFML) — applying ML to RF/wireless signal data

● Experience with software-defined radios and wireless testbeds

● Familiarity with OpenAirInterface or srsRAN

● Experience building xApps or rApps, or working with the RAN Intelligent Controller (RIC)

● Strong programming skills in C, C , and Python in a Linux environment

If several of these describe your background, we want to talk to you.

What You'll Do

● Design, develop, and test software for O-RAN and NextG wireless systems, including xApps and rApps

● Integrate software with SDRs, wireless testbeds, and embedded/RF hardware

● Build and maintain real-time and near-real-time wireless applications

● Develop APIs connecting wireless, ML, cybersecurity, and network-management components

● Support system integration, lab testing, demos, and technical evaluations

● Troubleshoot software, RF, and hardware-in-the-loop issues

● Document designs, test procedures, and results; contribute to technical reports and publications as needed

Required Qualifications

● Hands-on knowledge of O-RAN/ 5G technologies, architectures, or systems

● Experience developing or integrating software for wireless communications systems

● Strong programming proficiency in C, C , and Python

● Experience developing, debugging, and testing software in Linux

● U.S. person status, including U.S. citizens and lawful permanent residents (green card holders), with ability to obtain/maintain a U.S. Government security clearance

Preferred Qualifications

● Experience with SDRs, OpenAirInterface, or srsRAN

● Experience building O-RAN xApps or rApps

● Familiarity with the RIC, SMO, or near-real-time network control

● Applied ML on RF/wireless signal data, including model deployment or real-time inference

● Multithreading, concurrency, or SMP-safe programming

● Real-time/low-latency software or embedded systems experience

● Containerization, virtualization, or cloud-native development

● Git, CI/CD, or software configuration management experience

● U.S. citizenship

Education

Bachelor's degree in computer science, computer engineering, electrical engineering, wireless communications, or a related technical field. Advanced degree preferred. Equivalent hands-on experience will be considered.