Security Analyst III

#WeAreONEOK – Fortune 500 company. 100+ years in business. Leading midstream service provider. Safety first. Sustainable operations. Environmentally responsible. Employee focused. JOB SUMMARYJob Profile SummaryThis role serves as a senior offensive security analyst focused on internal red teaming, attack simulation, and threat and detection engineering within the Security Assurance team. This role ensures our systems are evaluated against emerging adversary tactics through continuous validation and threat-informed operations.Essential Functions and ResponsibilitiesLead adversary simulations, purple-team exercises, and red-team engagements based on real-world threat actor tactics, techniques, and procedures (TTPs).Partner with Security Operations Center, Engineering, and IT teams to translate offensive security findings into actionable detection content, control improvements, and architectural enhancements.Develop and validate threat detections based on emerging adversary tradecraft using SIEM, EDR, and security analytics platforms. Measure detection coverage through threat hunting and automated validation.Perform penetration testing, security architecture reviews, and application security assessments.Develop custom tooling, automation, attack emulation capabilities, and proof-of-concept exploits to emulate advanced adversary behavior and assess defensive effectiveness.Experience with Operational Technology (OT) environments, industrial control systems, and associated protocols and security technologies is preferred.Monitor emerging adversary behaviors and assess organizational exposure through continuous validation of internal and external attack surfaces.Serve as a technical leader within the Security Assurance team by mentoring team members, driving offensive security strategy, and communicating risk and remediation recommendations to technical and executive stakeholders.EducationBachelor's Degree in information technology, other related field, or an equivalent combination of formal education and the following job related experience:Work Experience3 - 6+ years related work experience in information security3+ years with significant duties in offensive security, read teaming, pentesting, or detection engineeringExperience in a regulated sector. Familiarity with gas / utilities business processesLicenses and Certifications (Preferred but not required)OSCP - OffSec Certified Professional or other relevant OffSec certificationsGPEN - GAIC Penetration Tester or other relevant GIAC certificationsCISSP Certified Information Systems Security ProfessionalStrength Factor Rating - Physical Demands/RequirementsSedentary Work - Exerting up to 10 pounds of force occasionally (Occasionally: activity or condition exists up to 1/3 of the time) and/or a negligible amount of force frequently (Frequently: activity or condition exists from 1/3 to 2/3 of the time) to lift, carry, push, pull, or otherwise move objects, including the human body. Sedentary work involves sitting most of the time, but may involve walking or standing for brief periods of time. Jobs are sedentary if walking and standing are required only occasionally and all other sedentary criteria are met.Strength Factor Description - Physical Demands/RequirementsStanding: Remaining on one's feet in an upright position at a work station without moving about (Occasionally)Walking: Moving about on foot (Frequently)Sitting: Remaining in a seated position (Constantly)Lifting: Raising or lowering an object from one level to another (includes upward pulling) (Occasionally)Carrying: Transporting an object, usually holding it in the hands or arms, or on the shoulder (Occasionally)Pushing: Exerting force upon an object so that the object moves away from the force (Occasionally)Pulling: Exerting force upon an object so that the object moves toward the force (includes jerking) (Occasionally)Climbing: Ladders, Stairs (Occasionally)Balancing: Maintaining body equilibrium to prevent falling (Occasionally)Stooping: Bending the body downward and forward by bending the spine at the waist (Occasionally)Kneeling: Bending the legs at the knees to come to rest on the knee or knees (Occasionally)Crouching: Bending the body downward and forward by bending the legs and spine (Occasionally)Crawling: Moving about on the hands and arms in any direction (Occasionally)Reaching: Extending hands and arms in any direction (Constantly)Handling: Seizing, holding, grasping, turning or otherwise working with the hand or hands (Manual Dexterity) (Constantly)Fingering: Picking, pinching or otherwise working with the fingers primarily (Finger Dexterity) (Constantly)Feeling: Perceiving such attributes of objects/materials as size, shape, temperature, texture, movement or pulsation by receptors in the skin, particularly those of the finger tips (Constantly)Talking: Expressing or exchanging ideas/information by means of the spoken word (Frequently)Hearing: Perceiving the nature of sound by the ear (Frequently)Tasting/Smelling: (Occasionally)Near Vision: Clarity of vision at 20 inches or less (Constantly)Far Vision: Clarity of vision at 20 feet for more (Frequently)Depth Perception: Three-dimensional vision; ability to judge distances and spatial relationships so as to see objects where and as they actually are (Frequently)Vision: Color - The ability to identify and distinguish colors (Constantly)Working Conditions/EnvironmentEmployee is subject to inside environmental conditionsWorking ConditionsWell lighted, climate controlled areas (Constantly)Frequent repetitive motion (Constantly)CRT (Computer Monitor(s)) (Constantly)TravelTravel to other locations requiredDrivingBased on assigned tasks, employee may be assigned a company vehicle requiring the applicable driver's licenseONEOK is an equal opportunity employer committed to diversity and inclusion. All qualified applicants will receive consideration for employment without regard to race, color, sex, pregnancy, sexual orientation, age, religion, creed, national origin, gender identity, disability, military/veteran status, genetic information or any other categories protected by applicable law.The job description is not intended to be a complete list of all responsibilities, duties or skills required for the job and is subject to review and change at any time, with or without notice, in accordance with the needs of ONEOK.ONEOK is committed to making our workplace accessible to individuals with disabilities and will provide reasonable accommodations, upon request, for individuals to participate in the application and hiring process. To request an accommodation email View email address on click.appcast.io or call View phone number on click.appcast.io​. Expected Salary Range$104,000.00 - $156,000.00SummaryLocation: Tulsa, OK; Dallas, TXType: Full time