Senior Cybersecurity Engineer

Full Time
St. Louis Metro

Location: O’Fallon, IL


Job Description:

Provide clients with cybersecurity services to protect their systems, employees, and customers. Provide/perform security services in client environment to include but not limited to penetration testing, vulnerability scanning, risk assessments, security engineering, social engineering, policy review & development. Document findings, write security reports and discuss solutions with clients. Develop Incident Response plans and simulated exercises to ensure plan efficacy. Requires a well-rounded background in multiple security domains.  Requires an expert level of technical skill and extensive experience in multiple security domains. Mentors and trains those juniors in skill level.


Required Skills:


Broad range of experience in offensive (penetration testing) techniques and defensive mechanisms (firewall, IDS/IPS, DLP, etc.), security policy development, Incident Response, security product testing, leading Social Engineering campaigns. A comprehensive understanding of the latest threats, and procedures, is essential. An ability to manage multiple projects and follow them to completion. Detail-oriented with strong organizational skills. Exceptional oral and written communication skills.


Required Qualifications:


  • Understanding the API ecosystem tools and technologies such as Postman, Swagger.
  • Previous penetration testing experience required.
  • Cloud Service Provider Platforms: AWS, GCP or Azure.
  • Basic understanding of Cybersecurity Governance patterns: Policy -> Standards -> Control Solutions.
  • Intermediate understanding of Network Security principals – basic segmentation, firewall rules, best practices, limiting administrative ports, protecting workloads with WAF.
  • IAM fundamentals – principal of least privilege, authN, authZ, RBAC.
  • Intermediate understanding of Data Security principals – encryption in flight, encryption at rest, DLP fundamentals.
  • Networking OSI model, routing, switching, load balancing, client-server, packet analysis.
  • Intermediate to Advanced scripting / automation skills.


Four-year degree in C.S., C.I.S., or related field and four years related experience. Without degree, eight or more years related experience.


CISSP Certification Required

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Job CategoryCybersecurity

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