Pentester 5G

P1 Security is looking for a Senior Penetration (min. of 5 years) tester to join our Expert missions team dedicated to enhancing critical infrastructure security and particularly on mobile networks environments (Telco). About P1 Security Founded in 2011 by serial entrepreneur and security expert Philippe Langlois, P1 Security is on a mission to secure critical and sovereign mobile networks by providing services and technologies to identify, detect, and recover from critical threats and vulnerabilities. P1 Security is one of the very few companies in the world tackling telecom security through pure Mobile and Telecom Security attacks and security from 5G and Cloud-based infrastructure Security , OpenRAN, Network Slicing and RAN Sharing, Edge Computing (MEC), OpenRAN down to legacy 2/3/4G Diameter, SS7 SIGTRAN attacks, GTP manipulation and fuzzing . Our offering and expertise range from Network and Telecom Core Network Security, Intrusion Detection, and Vulnerability Assessment solutions with technology backed by 10 years of engineering research. We are a lean scale-up, engaged aggressively in emerging markets (Eastern Europe, Middle East, Asia), Europe, and North America. The P1 Security team includes experts from telecom operators and security companies as well as renowned security researchers who regularly present unique P1 Security research at leading international security conferences & GSMA working groups. P1 Labs, the R&D branch of P1 Security, is sharing Open Source initiatives with the telecom security community ( ). Tasks Job Description P1 Security is looking for a Senior Penetration (min. of 5 years) tester to join our Expert missions team. It is a full-time position. You will play a key role in delivering red team audits to our customers. Key Responsibilities: Perform red team audits on our customer premises, preferably remotely. Spot vulnerabilities in the different sets of interfaces of the target: operation and maintenance, signaling, user plane, … Develop proofs of concept to illustrate the effectiveness of the findings. Propose mitigations and present reports to the customers. Contribute to enhance existing and build new products based on field feedback. Requirements Basic Qualifications: Proficient in pentest Linux-based environments and Web applications. Experience in scripting languages and automate tasks using bash, Python, or other scripting languages. Good knowledge of Linux system architecture, from userspace processes down to kernel modules. Excellent troubleshooting and debugging skills in technical systems, networked environments. Excellent written and oral communication skills. English proficiency is mandatory (written and spoken). Preferred Qualifications: Certificate of pentest skills like OSCP, CEH, or PNPT would be a plus. Knowledge of the Mobile environment ecosystem: vendors, operators, billing, charging, … Publicly disclosed vulnerabilities. Knowledge of Linux tracing and dynamic analysis tools. Knowledge of network-based fuzzers. Language Requirements: English - fluent speaker. Any other language would be appreciated. Join P1 Security as a Pentester 5G (ASEAN) and innovate in critical infrastructure powering the world's connection. Collaborate with a dynamic team and advance your career in a growing industry. #J-18808-Ljbffr