The buildout of 5G infrastructure is on schedule in terms of towers and spectrum licensing. The workforce to secure and operate what's being built is not.
The World Economic Forum's 2025 cybersecurity workforce report put the global gap at 4.8 million professionals. Communications infrastructure — the sector responsible for the pipes through which everything else runs — is the single largest contributor to that number. You cannot build a resilient communications network without the people who understand both the RF engineering and the security posture.
What makes communications workforce uniquely hard
The rarest professionals in this sector sit at three intersections: RF engineering meets software-defined networking. Network operations meets NIST SP 800-53 compliance. Spectrum management meets export control (some communications technology is ITAR-adjacent when it involves secure government channels).
That last intersection is underappreciated. The FCC licenses spectrum and the NSA cares about what flows through it. Engineers working on government-adjacent communications programs — FirstNet, the satellite communications layer for DoD, hardened command-and-control networks — operate under compliance requirements closer to defense than to commercial telecom.
The open-source signal
One of the most reliable indicators of authentic communications engineering expertise is open-source radio (SDR) contribution. Professionals who have built GNU Radio flowgraphs, contributed to OpenAirInterface (the open-source 5G stack), or published MIMO antenna design research on GitHub have a verifiable, public, contribution-level signal of expertise that a job title cannot replicate.
GameChangers' GitHub integration specifically surfaces SDR and networking contributions in Trust Score computation. A systems engineer with 200 commits to OpenAirInterface and 3 published RF design notebooks on Kaggle has a different signal than one whose GitHub shows general Python scripts. The Trust Score is designed to see that distinction.