Security Engineer

Proven Business Systems LLC • Tinley Park, IL

2d • Onsite

About The Position

We are seeking a motivated and detail-oriented Security Engineer to join our Offensive Security team. As a Security Engineer team member, you will conduct vulnerability assessments, penetration testing, security software and hardware installations, and simulated attack scenarios to identify and exploit weaknesses in the organization’s security infrastructure. This entry-level role is ideal for those passionate about ethical hacking, red teaming, and learning advanced attack techniques in a collaborative and growth-focused environment.

Requirements

• Bachelor’s degree in Cybersecurity, Computer Science, or related field (or equivalent experience).
• 1-2 years of experience in cybersecurity, penetration testing, or offensive security (preferred but not required).
• Internship or hands-on lab experience in ethical hacking or Red Teaming is highly desirable.
• Familiarity with penetration testing tools (e.g., Metasploit, Nmap, Burp Suite, Nessus, Wireshark).
• Basic understanding of networking protocols (TCP/IP, DNS, HTTP) and operating systems (Windows, Linux).
• Knowledge of vulnerability assessment tools and techniques.
• Foundational knowledge of scripting languages (Python, PowerShell, Bash) or willingness to learn.
• Awareness of attack frameworks such as MITRE ATT&CK and OWASP Top 10.
• CompTIA Security + or equivalent entry-level certifications.
• Analytical thinking and problem-solving skills.
• Ability to work collaboratively in a fast-paced, team-oriented environment.
• Excellent communication skills, with the ability to write clear and concise technical reports.
• Passion for offensive security and a strong desire to learn and grow in the field.
• High level of integrity and a strong commitment to ethical hacking principles.

Nice To Haves

• Internship or hands-on lab experience in ethical hacking or Red Teaming is highly desirable.
• CompTIA Security + or equivalent entry-level certifications.

Responsibilities

• Conduct vulnerability scans and assessments on applications, networks, and systems.
• Assist in executing penetration tests to identify security gaps and exploit potential vulnerabilities.
• Participate in simulated adversarial attacks (e.g., phishing campaigns, lateral movement scenarios, etc.).
• Use tools such as Metasploit, Burp Suite, Nmap, and other frameworks to identify and exploit security weaknesses.
• Document and communicate findings in detailed technical reports.
• Consult with clients on security posture and possible improvements.
• Provide recommendations based on security posture, company objectives, and threat landscape.
• Scope security related projects and implement.
• Participate in client consultation meetings on occasion.
• Collaborate with Blue Teams and Fractional CISO teams to improve client security posture.
• Provide actionable recommendations and scopes to improve security controls and reduce attack surface.
• Assist in creating and updating Red Team methodologies, tools, and playbooks.
• Assist or lead in Incident Response efforts in event of a security breach.
• Assist in ticket escalations from Blue Team.
• Triage security tickets from various alert systems.
• Stay updated on the latest attack techniques, tools, and frameworks used by adversaries.
• Participate in training, certifications, and hands-on exercises to improve offensive security expertise.
• Continuously test new tools, scripts, and frameworks to enhance the Red Team’s toolkit.
• Assist in developing and maintaining scripts, custom tools, and exploits to simulate threat actor behavior.
• Support automation of repetitive tasks to improve testing efficiency.
• Performs additional duties as assigned.

Benefits

• Group health insurance (PPO plans, High Deductible Health plan, HMO) with BlueCross BlueShield of Illinois (BCBSIL) after a 30-day waiting period for full-time employees.
• Dental benefits.
• Vision PPO plan utilizing the EyeMed network.
• Voluntary worksite benefits including critical illness and accident coverage, short-term disability insurance, supplemental life and pet insurance.
• Employer-provided Life/AD&D Insurance ($25,000 benefit) after a 30-day waiting period for full-time employees.
• Employer-provided Long-Term Disability (LTD) insurance.
• Employee Assistance Program (EAP) through BlueCross BlueShield of Illinois.
• 401K plan with employer match (100% of the first 3% of deferrals plus 50% of the next 2%) after 120 days of service.
• Financial Advisory Services through Merrill Lynch.
• Permissive Time Off Policy for all full-time regular employees after a 90-day waiting period.
• Parental Leave (90-days paid Maternity leave and 10-days paid Paternity leave after 24-months of employment; unpaid time off for less than 24-months service).
• Free on-site fitness center at the Tinley Park headquarters office location.

What This Job Offers

• Job Type: Full-time
• Career Level: Entry Level