Security Engineer jobs in San Antonio, Texas

42 open Security Engineer jobs in San Antonio, Texas (10 posted in the last 7 days), collected from employers’ own career pages and checked twice a day. Every listing links to the company’s site to apply.

Latest openings

• Supervisory IT Cybersecurity Specialist (APPSW)

  U.S. Army Intelligence and Security Command · San Antonio
  Posted 2026-10-20
• Information Security Analyst: Senior- Penetration Tester

  Cook Systems · San Antonio
  Posted 2026-10-16
• Information Security Analyst: Senior

  Cook Systems · San Antonio
  Posted 2026-10-16
• Cybersecurity - Standard - Security Engineer Level: Senior

  Cook Systems · San Antonio
  Posted 2026-10-16
• ISSE (Hybrid)

  Hii-Tsd · San Antonio · Hybrid
  Posted 2026-10-16
• ISSE (Hybrid)

  Hii-Tsd · San Antonio · Hybrid
  Posted 2026-10-16
• Information Security Analyst III - Vulnerability Management

  Frost Bank · San Antonio
  Posted 2026-10-15
• Systems Security Analyst

  Leidos · San Antonio
  Posted 2026-10-14
• Information Systems Security Officer (ISSO)

  Leidos · San Antonio
  Posted 2026-10-14
• Information Systems Security Engineer - TS/SCI

  Parsons · San Antonio · Remote
  Posted 2026-10-05
• Analyst, Information Security

  StandardAero · San Antonio
  Posted 2026-10-06
• Senior IT & Security Operations Engineer

  Floatme · San Antonio · Hybrid
  Posted 2026-10-09
• SOAR Engineer- TS/SCI

  Maania Consultancy Services · San Antonio
  Posted 2026-10-09
• RMF Cyber Analyst

  OASYS, INC. · San Antonio
  Posted 2026-09-28
• Reverse Engineer Level 3

  IntelliGenesis · San Antonio
  Posted 2026-08-04
• Cyber SDC - Zero Trust (ZScaler) - Senior

  EY · San Antonio
  Posted 2026-09-30
• Government and Infrastructure - Service Delivery Center - Cybersecurity - ISSO Analyst

  EY · San Antonio
  Posted 2026-10-02
• Government and Infrastructure - Service Delivery Center - Cybersecurity - ISSO Senior Analyst

  EY · San Antonio
  Posted 2026-10-02
• (9463) ISSE

  IAMUS Consulting, Inc. · San Antonio · Hybrid
  Posted 2026-08-24
• Cloud Security Engineer

  AnaVation · San Antonio
  Posted 2026-09-16
• Cyber Security Analyst

  Arsenault · San Antonio
  Posted 2026-10-03
• Reverse Engineer Level 3

  DigiFlight, Inc. · San Antonio
  Posted 2026-08-12
• SOAR Engineer

  Global Enterprise Services, LLC · San Antonio
  Posted 2026-09-01
• Security Control Assessor

  BEAT, LLC · San Antonio · Hybrid
  Posted 2025-09-11
• Cyber Analyst

  TekSynap · San Antonio · Hybrid
  Posted 2024-10-06
• Senior Cyber Engineer w/PM Experience

  TekSynap · San Antonio
  Posted 2024-10-16
• Cyber Security Architect

  Alpha Omega · San Antonio
  Posted 2025-09-23
• Vulnerability Analyst - Night Shift

  Leidos · San Antonio
  Posted 2026-10-02
• Computer Network Defense Analyst - Night Shift

  Leidos · San Antonio
  Posted 2026-10-02
• Vulnerability Researcher/ CNO Developer II (Onsite)

  Nightwing · San Antonio
  Posted 2025-03-11
• Vulnerability Researcher/CNO Developer (Onsite)

  Nightwing · San Antonio
  Posted 2025-05-29
• Senior Vulnerability Researcher/CNO Developer (Onsite)

  Nightwing · San Antonio
  Posted 2025-08-19
• Vulnerability Researcher/ CNO Developer II (Onsite)

  Nightwing · San Antonio
  Posted 2025-08-19
• Vulnerability Researcher/CNO Developer (Onsite)

  Nightwing · San Antonio
  Posted 2025-08-19
• Senior Vulnerability Researcher/Reverse Engineer/CNO Developer (Onsite)

  Nightwing · San Antonio
  Posted 2025-09-09
• Vulnerability Researcher/Reverse Engineer/CNO Developer (Onsite)

  Nightwing · San Antonio
  Posted 2025-09-11
• Senior Vulnerability Researcher/Reverse Engineer

  Nightwing · San Antonio
  Posted 2026-02-19
• Senior Vulnerability Researcher/Hardware Reverse Engineer/CNO Developer (Onsite)

  Nightwing · San Antonio
  Posted 2026-05-26
• Senior Security Assurance Analyst

  Southwest Business Corporation (SWBC) · San Antonio
  Posted 2026-07-20
• DevSecOps Security Engineer

  Southwest Business Corporation (SWBC) · San Antonio
  Posted 2026-09-30
• Senior Enterprise Security Engineer

  Frost Bank · San Antonio
  Posted 2026-07-23
• Application Security Analyst II - AI

  Frost Bank · San Antonio
  Posted 2026-09-25
• Senior Information Security Engineer, Offensive Security

  GRVTY · San Antonio
  Posted 2026-07-20

Security Engineer jobs in other cities

• New York, New York 246
• Arlington, Virginia 183
• Annapolis Junction, Maryland 131
• San Francisco, California 127
• Seattle, Washington 110
• Austin, Texas 99
• Mclean, Virginia 98
• Chantilly, Virginia 94
• Atlanta, Georgia 92
• Fort Meade, Maryland 87
• Chicago, Illinois 77
• Dallas, Texas 76
• Reston, Virginia 68
• San Diego, California 63
• Herndon, Virginia 61
• Huntsville, Alabama 58
• Sunnyvale, California 50
• Houston, Texas 49
• Boston, Massachusetts 49
• Columbus, Ohio 47
• Denver, Colorado 45
• Colorado Springs, Colorado 44
• Plano, Texas 43
• Santa Clara, California 42

Other roles in San Antonio, Texas

• Registered Nurse (RN) 364
• Restaurant Crew / Team Member 288
• Technician (general) 163
• Delivery / Truck Driver 156
• Automotive / Service Technician 156
• Sales Representative 152
• Teacher / Tutor 149
• Patient Care / Caregiver 139
• Executive / Director 131
• Maintenance Technician 128
• Supervisor / Team Lead (other) 122
• Program / Project Manager 122
• Warehouse Associate / Material Handler 121
• Retail Sales Associate 120
• Store / Shift Manager 116
• Patient Services / Front Office 116
• Server / Bartender / Host 111
• Licensed Practical Nurse (LPN) 101
• Intern / Trainee 96
• Construction / Carpenter / Labor 96
• Physical Therapist 95
• Customer Service Representative 95
• Retail Associate (other) 94
• Security Officer / Guard 86
• Radiology / Imaging Technologist 79

Questions

How many Security Engineer jobs are open in San Antonio, Texas right now?

42 listings are open on OpeningsFirst today, all from employers’ own career pages. 10 more were posted in the last 5 days and went to subscribers first.

Which companies are hiring for Security Engineer roles in San Antonio, Texas?

Recent openings here come from U.S. Army Intelligence and Security Command, Cook Systems, Hii-Tsd, Frost Bank, Leidos, Parsons, StandardAero, Floatme.

How do I hear about new Security Engineer jobs in San Antonio, Texas first?

Subscribers get new matching jobs by email at 8 am and 6 pm, 5 days before they open on these pages. It costs ₹299 a month.

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