> Markdown version of [/jobs/ext/2737228-penetration-tester](https://www.wearedevelopers.com/jobs/ext/2737228-penetration-tester). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Penetration Tester - **Company:** MarineTraffic - **Location:** Manassas, VA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Amazon Web Services, Microsoft Azure, Network Operating System (NOS), Communications Protocols, Cyber Security, Perl (Programming Language), Intrusion Detection Systems, Network Security, NetFlow, Network Architecture, Red Team (Cyber Security), TCP/IP, Wireshark, Web Applications, Scripting, Office365, Virtual Environment, Firewalls (Computer Science), Fireeye, Malware Detection, Purple Team (Cyber Security), Cyber Warfare, Splunk, Network Server, Vmware - **Published:** September 5, 2026 - **Apply:** https://www2.jobdiva.com/portal/?a=j7jdnwgck4wulo816y7l865pzq556q05f5cqdk65b0o0dpy0m5p196w9a9ln1g3w&compid=0/jobs/13529246#/jobs/13529246 ## About the Role * Demonstrated experience and advanced knowledge of security systems analysis, testing, and documentation * Knowledge of virtual environments, network operating systems, mobile device environments, and data encryption methods * Demonstrated expertise in communication protocols, network operating systems, servers, firewall implementation, IPS/IDS systems, and advanced malware detection systems * Demonstrated knowledge of TCP/IP, network fundamental, network security, NetFlow and knowledge of tools such as Wireshark. * Demonstrated knowledge of NetWitness , FireEye, Splunk, AWS Direct Connect, Checkpoint/Barracuda Firewalls, StealthWatch , ThreatConnect, O365, Bro, AWS/AZURE Security Onion, Gigamon, and VMware. Experience with scripting languages such as Perl a plus. * Exceptional communication skills, both verbally and written * Strong attention to detail * Ability to work alone and in team environments * Critical thinking skills * Flexibility/Adaptability Level of Education: Bachelors or above Area(s) of Concentration : Bachelor's degree in computer related field plus 5 years of professional experience or equivalent work experience is required for each position. In lieu of a bachelor's degree, proposed staff should have at least eight (8) years of Information Technology security experience Certifications Preferred : CISSP, GIAC, CCE, ECIH, CEH. ## Description * Lead enterprise and system-focused network and application penetration assessments to identify security risks and vulnerabilities. * Perform testing on a wide scope of systems, including Web applications, security controls, network infrastructure, wireless, and mobile deployments. * Conduct hands-on technical testing beyond the use of automated tool validation. Plan, execute, report, and lead technical debriefs on testing activities and outcomes. * Execute covert Red Team Cyber operations to mimic adversary tactics and work closely in a Purple Team to test exploits needed to build detections. * Communicate findings and remediation strategies effectively to stakeholders, including technical staff and executive leadership. * OSCP, GPEN or GXPN certification preferred. * Perform other official duties as assigned. ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [Our journey with Spring Boot in a microservice architecture](https://www.wearedevelopers.com/videos/511-our-journey-with-spring-boot-in-a-microservice-architecture) - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [Cyber Sleuth: Finding Hidden Connections in Cyber Data](https://www.wearedevelopers.com/videos/893-cyber-sleuth-finding-hidden-connections-in-cyber-data) - [Turning Container security up to 11 with Capabilities](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities) ## Related Articles - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Understanding and Mitigating Common Web Vulnerabilities](https://www.wearedevelopers.com/magazine/565-understanding-and-mitigating-common-web-vulnerabilities) - [Walking Into The Era of Supply Chain Risks](https://www.wearedevelopers.com/magazine/106-walking-into-the-era-of-supply-chain-risks) - [Dev Digest 191: Malware interviews, EU ❤️ Open Source and Skilled Agents](https://www.wearedevelopers.com/magazine/645-dev-digest-191-malware-interviews-eu-open-source-and-skilled-agents) - [The Overflow: Security and Privacy](https://www.wearedevelopers.com/magazine/715-the-overflow-security-and-privacy)