Penetration tester 5G

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 ranges 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, R&D branch of P1 Security, is sharing Open Source initiatives with the telecom security community ()

In 2024, we are launching a new chapter for the company and we are looking to grow the team with stellar individuals ready to embark on a new journey for critical infrastructure security.

Tasks

Key Responsibilities:

• Perform redteam audits on our customer premises, preferably remotely
• Spot vulnerabilities in the different sets of interfaces of the target: operation and maintenance, signaling, userplane, …
• 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
• French - optional

Specialisations

Telecommunications Security, SS7, SIGTRAN, LTE, IMS, UMTS, CDMA, GPRS, OpenStack, Kubernetes, LinuxServers / PNF, Diameter, NFV, Security, VoLTE, VoWifi, GTP, Diameter, 3G, 4G, IoT Security, NFV(i), S1AP, X2AP, Fuzzing, eUTRAN S1AP, X2AP, NgRAN, NGAP, PFCP, 5GC SBI

Benefits

• Remote policy:

At P1 Security, we recognize the importance of work-life balance, and that's why our remote policy is a key part of our company culture. We understand that flexibility is crucial, allowing our team members to work remotely while achieving their personal and professional goals. To keep our team connected, we schedule monthly meetups with department members and gather the entire team on-site every two months. These regular touchpoints ensure effective communication, collaboration, and a dynamic team spirit, reflecting the dynamic and adaptable spirit of P1 Security. We believe in the power of flexible work arrangements to bring out the best in our team, driving success in a way that suits everyone's unique lifestyle

• Perks

As part of our social policy, we provide a monthly allocation of €125, giving you the flexibility to tailor your benefits to your individual needs. Whether you choose to invest in sustainable transportation through our 'Sustainable Mobility Package,' prioritize your health with a gym membership, or enjoy entertainment with our partner MAY for a cinematic escape, the choice is yours. We understand that life is diverse, and so are your priorities. P1 Security's approach is all about giving you the freedom to allocate your monthly allowance across a variety of benefit categories. Because at P1 Security, we trust our team to make choices that align with their unique preferences and enhance their overall well-being.

• ‍♂️ Healthcare :

At P1 Security, we prioritize the well-being of our team members, and that's why we've partnered with Alan for health insurance. We contribute 60% towards the premium, covering not only our employees but also their spouses and children. Alan isn't just an insurance provider; it's a health partner that empowers you to care for yourself and your family every day:

• Get quick and hassle-free reimbursements while having all your queries addressed directly through the app.
• ✨ No more surprises: Alan allows you to transparently review your coverage, helps you find the best-reimbursed doctors nearby, and enables you to estimate your healthcare costs before appointments.
• ⚕️ Access prompt medical advice wherever you are, at no cost, thanks to the virtual clinic available 7 days a week from 8 am to 11 pm.
• Explore programs tailored to your needs, focusing on mental well-being, nutrition, and addressing back pain.
• Take care of your eyes without breaking the bank by ordering fully covered glasses online or at any of the 1500 Krys stores. You can also conveniently order your contact lenses with just a few clicks