Offensive Security Lead - Penetration Tester

• Perform analysis and testing to verify the strengths and weaknesses of client IT environments utilizing commercial and open source security testing tools
• Perform Internet penetration testing (blackbox/greybox /whitebox testing) and network architecture reviews (manual/automated)
• Perform other security testing tasks such as wireless penetration testing, social engineering campaigns (email, web, phone, physical, etc.), mobile application testing, embedded device testing, and similar activities meant to identify critical weaknesses within client environments
• Assist with the development of remediation recommendations for identified findings
• Identify and clearly articulate (written and verbal) findings to senior management and clients
• Help identify improvement opportunities for assigned clients
• Supervise and provide engagement management for other staff working on assigned engagements

• This position is for individuals with 4+ years of experience within the cyber security space, with a preference for prior consulting or professional services backgrounds. Other candidates may be considered based on experience and skill sets.

• Ability to travel as needed

• Must possess a high degree of integrity and confidentiality, as well as the ability to adhere to both company policies and best practices

• Strong verbal and written abilities

• Strong multitasking and project management skills, * Bachelor's degree in computer science or related field from an accredited college/university

• Technical background in networking/system administration, security testing or related fields

• In-depth knowledge of TCP/IP

• Two or more years of Perl, Python, Bash, or C experience

• Operating System Configuration and Security experience (Windows, HP-UX, Linux, Solaris, AIX, etc.)

• Configuration and Security experience with firewalls, switches, routers, VPNs

• Experience with security and architecture testing and development frameworks, such as the Open Web

• Application Security Project (OWASP), Open Source Security Testing Methodology Manual (OSSTMM), the Penetration Testing Execution Standard (PTES), Information Systems Security Assessment Framework (ISSAF), and NIST SP800-115

• Familiar with security testing techniques such as threat modeling, network discovery, port and service identification, vulnerability scanning, network sniffing, penetration testing, configuration reviews, firewall rule reviews, social engineering, wireless penetration testing, fuzzing, and password cracking and can perform these techniques from a variety of adversarial perspectives (white-, grey-, black-box)

• Experience with discovering, utilizing, and possibly writing exploits for such vulnerabilities as buffer and stack overflows

• Familiar with the logistics of security testing such as acquiring authorization for testing, reporting, risk analysis of findings, data handling, and legal considerations

• Commercial Application Security tools experience (Nessus, Nexpose, Qualys, Appdetective, Appscan, etc.) Open source and free tools experience (Kali Linux suite, Metasploit, nmap, airsnort, Wireshark, Burp Suite, Paros, etc.)

• One or more of the following testing certifications: Certified Ethical Hacker (CEH); GIAC Certified Penetration Tester (GPEN); Offensive Security Certified Professional (OSCP); or equivalent development or testing certification (ECSA, CEPT, CPTE, CPTS, etc)

• In addition, one or more of the following governance certifications is preferred: Certified Information Systems Security Professionals (CISSP); Certified Information Systems Auditor (CISA); Certified Information Security Manager (CISM)

• Strong leadership and communication skills, technical knowledge, and the ability to write at a "publication" quality level in order to communicate findings and recommendations to the client's senior management, RSM does not intend to hire entry level candidates who will require sponsorship now OR in the future (i.e. F-1 visa holders). If you are a recent U.S. college / university graduate possessing 1-2 years of progressive and relevant work experience in a same or similar role to the one for which you are applying, excluding internships, you may be eligible for hire as an experienced associate.

At RSM, we offer a competitive benefits and compensation package for all our people.We offer flexibility in your schedule, empowering you to balance life's demands, while also maintaining your ability to serve clients.Learn more about our total rewards at https://rsmus.com/careers/working-at-rsm/benefits.

$107,000 - $214,500 United States, Illinois, Chicago Apr 09, 2026 We are the leading provider of professional services to the middle market globally, our purpose is to instill confidence in a world of change, empowering our clients and people to realize their full potential. Our exceptional people are the key to our unrivaled, culture and talent experience and our ability to be compelling to our clients. You'll find an environment that inspires and empowers you to thrive both personally and professionally. There's no one like you and that's why there's nowhere like RSM. We are currently looking for team members to join our Security, Privacy, and Risk Consulting practice. The candidate will work with teams of security and privacy staff in a wide variety of systems environments.Our Security, Privacy and Risk Consulting team serves the Information Security and Data Privacy related needs of our clients. This team helps organizations identify their cyber risk, and design and implement program to address those risks and improve their cyber security posture. We serve a diverse base of clients in a variety of industries and understanding how technology impacts the operation and growth of organizations is what we do best.We are seeking individuals skilled at performing vulnerability assessments, penetration testing, and secure architecture reviews of a variety of operating systems, network devices, wireless solutions, and their related infrastructure.