Penetration Tester
Connecting Experts
Paris
Telecom Security Penetration Tester – Remote (B2B/Freelance)
Are you a cybersecurity expert with a passion for securing critical infrastructure? My client, a leader in telecom security, is looking for a Telecom Security Penetration Tester to join their elite team. This is a fully remote opportunity available on a B2B or freelance basis , offering a chance to work on cutting-edge security challenges in mobile and telecom networks.
About the Role
As a Telecom Security Penetration Tester , you will play a key role in identifying, analyzing, and mitigating vulnerabilities in mobile and telecom infrastructures, including 5G, OpenRAN, Network Slicing, Edge Computing, and legacy 2G/3G/4G networks . You will conduct red team audits, develop proof-of-concept exploits, and contribute to innovative security solutions that protect global telecom operators and critical communications networks.
Key Responsibilities
- Conduct red team audits remotely for international clients.
- Identify and exploit vulnerabilities in operation and maintenance, signaling, and user plane interfaces .
- Develop proof-of-concept exploits to demonstrate security risks.
- Deliver detailed security reports and propose mitigation strategies.
- Collaborate with R&D teams to enhance security products based on real-world findings.
Requirements
Basic Qualifications:
- Strong experience in penetration testing for Linux environments and web applications .
- Proficiency in scripting and automation using Bash, Python, or similar languages .
- Deep understanding of Linux system architecture , from userspace processes to kernel modules.
- Excellent troubleshooting, debugging, and network analysis skills .
- Strong communication skills, with the ability to write clear and concise reports .
- Fluent English (written and spoken) .
Preferred Qualifications:
- Certifications such as OSCP, CEH, PNPT are a plus.
- Experience with mobile network security (vendors, operators, billing, charging).
- Knowledge of Linux tracing, dynamic analysis tools, and network-based fuzzers .
- Experience with publicly disclosed vulnerabilities .
Specialized Skills (Preferred but Not Mandatory)
- Telecom Security & Protocols : SS7, SIGTRAN, LTE, IMS, UMTS, CDMA, GPRS.
- Cloud & Virtualization : OpenStack, Kubernetes, NFV(i).
- Security & Penetration Testing : VoLTE, VoWiFi, GTP, Diameter, IoT Security, S1AP, X2AP, NGAP, PFCP, 5GC SBI.
Why Join?
- Fully remote work with flexible hours.
- Opportunity to work with world-class cybersecurity experts .
- Engage with cutting-edge research in telecom security and infrastructure protection .
- Contribute to open-source security projects and shape the future of telecom security.
If you’re ready to tackle some of the toughest security challenges in the telecom industry , apply now and be part of a team that’s redefining network security worldwide!