Ibm Mainframe Computer Operator Jobs in Irving, TX

At IBM Infrastructure & Technology, we design and operate the systems that keep the world running. From high‑resiliency mainframes and hybrid cloud platforms to networking, automation, and site reliability, our teams ensure the performance, security, and scalability that clients and industries depend on every day. Working in Infrastructure & Technology means tackling complex challenges with curiosity and collaboration. You’ll work with diverse technologies and colleagues worldwide to deliver resilient, future‑ready solutions that power innovation.

A Penetration Tester with deep technical expertise in the processes, procedures, tools and methodology for assessing IT Security risk. The role requires an individual who can independently visualize the network topology from information provided, prepare tests, conduct hacker simulations and demonstrate the likelihood of data compromise via “proof of concept exploitation” of a given vulnerability. Following the tests, the candidate must clearly describe the problem, concerns and provide recommendations to fix.

Associate's Degree/College Diploma

Bachelor's Degree

• Penetration Testing experience with operating systems, web applications and network infrastructure; use of tools such as NMap, Nessus, Metasploit, BurpSuite, Nikto, Tcpdump; required certification: OSCP or higher Offensive Security qualification.
• AI skills: ability to work with LLMs, agentic tools, MCP/Administrator level knowledge of Server Operating Systems specifically Unix and Windows.
• In‑depth technical knowledge of TCP/IP networking/routing, intranet/internet architectures and segregation technologies/VLANs, firewalls, intrusion detection, intrusion prevention, SQL databases; ability to test web technologies such as web applications, containers, container managers.
• Programming ability to create, read and modify exploit code to achieve system penetration. C, C++, Java, C#, scripting knowledge is an asset.
• Ability to document and present the penetration testing results including recommendations to fix.

• Penetration Testing experience with operating systems, web applications and network infrastructure.
• Experience with using Penetration Testing tools such as NMap, Nessus, Metasploit, BurpSuite, Nikto, Tcpdump.
• Required certification: OSCP or higher Offensive Security qualification.
• AI skills: ability to work with LLMs, agentic tools, MCP.
• Administrator level knowledge of Server Operating Systems specifically Unix and Windows.
• In‑depth technical knowledge of TCP/IP networking/routing, intranet/internet architectures and segregation technologies/VLANs, firewalls, intrusion detection, intrusion prevention, SQL databases.
• Ability to test web technologies such as web applications, containers, container managers.
• Programming ability to create, read and modify exploit code to achieve system penetration. C, C++, Java, C#, scripting knowledge is an asset.
• Ability to document and present the penetration testing results including recommendations to fix.

• Healthcare benefits including medical and prescription drug coverage, dental, vision, and mental health and well‑being.
• Financial programs such as 401(k), cash‑balance pension plan, the IBM Employee Stock Purchase Plan, financial counseling, life insurance, short‑ and long‑term disability coverage, and opportunities for performance‑based salary incentive programs.
• Generous paid time off including 12 holidays, minimum 56 hours sick time, 120 hours vacation, 12 weeks parental bonding leave in accordance with IBM policy, and other paid care leave programs. IBM also offers paid family leave benefits to eligible employees where required by applicable law.
• Training and educational resources on our personalized, AI‑driven learning platform where IBMers can grow skills and obtain industry‑recognized certifications to achieve their career goals.
• Diverse and inclusive employee resource groups, giving and volunteer opportunities, and discounts on retail products, services and experiences.

IBM is proud to be an equal‑opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, genetics, pregnancy, disability, neurodivergence, age, or other characteristics protected by the applicable law. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

Location: Texas, United States

Work arrangement: Hybrid

Employment type: Regular (Full Time)

Projected Minimum Salary per year: $120,000.00

Projected Maximum Salary per year: $224,000.00

Job ID: 118801

Posted: 06-Jul-2026