Senior Security Engineer

Adaptive Solutions Group is a premier provider of information technology personnel. We provide a variety of technical professionals available for contract, contract to hire, or direct placement positions to companies in and around the St. Louis and Kansas City areas. Senior Security Engineer to join our team.

Plan and execute advanced red team engagements across enterprise and cloud environments. Simulate real-world adversary tactics, techniques, and procedures to assess organizational security resilience. Conduct penetration testing activities across web applications, APIs, cloud platforms, identity systems, internal networks, and endpoints. Identify, exploit, and validate security vulnerabilities to demonstrate real-world business risk. Perform attack path analysis, privilege escalation, lateral movement, persistence, and post-exploitation activities.

Assess cloud environments for security weaknesses, misconfigurations, excessive permissions, and identity-related risks. Evaluate the effectiveness of security controls, monitoring capabilities, and detection mechanisms. Develop and customize offensive security tools, scripts, payloads, and automation to support testing activities. Operate command-and-control frameworks and other security assessment tools to facilitate advanced security testing. Partner with security operations and defensive teams to conduct purple team exercises and improve detection and response capabilities.

Provide actionable recommendations to strengthen security posture and reduce organizational risk. Prepare detailed technical reports, attack narratives, risk assessments, and remediation recommendations for technical and business stakeholders. Contribute to the development of offensive security methodologies, testing procedures, and technical documentation.

6+ years of experience in offensive security, penetration testing, red team operations, or a related cybersecurity discipline. Proven experience conducting end-to-end red team engagements and advanced security assessments. Strong knowledge of web application, network, cloud, and identity-based attack techniques. Experience with privilege escalation, lateral movement, persistence, and post-exploitation methodologies. Deep understanding of adversary emulation frameworks and attack methodologies. Experience with command-and-control frameworks and offensive security tooling.

Strong knowledge of security testing methodologies and vulnerability exploitation techniques. Proficiency with scripting or programming languages such as Python, Power Shell, C#, or similar technologies. Excellent analytical, investigative, and problem-solving skills. Strong written and verbal communication skills with the ability to present technical findings to diverse audiences.

Experience performing cloud security assessments within AWS, Azure, or Google Cloud environments. Experience with custom security tooling, exploit development, or offensive security automation. Knowledge of modern identity platforms, access management systems, and cloud security architectures. Experience conducting purple team engagements and collaborating with security operations teams. Industry certifications such as OSCP, OSEP, CRTO, OSCE, or equivalent offensive security credentials. Experience utilizing MITRE ATT&CK and other adversary emulation frameworks to guide security testing activities.

Adaptive Solutions Group offers a competitive compensation and benefits package that includes medical, dental, STD/LTD, life insurance coverage, 401k, paid vacation and holidays.