Senior Cybersecurity Engineer - Penetration Testing & SIEM Integration

San R&D Business Solutions LLC | Full time

Austin, United States | Posted on 02/25/2026

Job Title: Senior Cybersecurity Engineer - Penetration Testing & SIEM Integration

Location: Austin, TX

Work Type: Onsite

Employment Type: Contract (C2C)

LOCAL TO AUSTIN AREA ONLY

The Senior Cybersecurity Engineer will serve cybersecurity modernization initiatives focused on penetration testing automation and SIEM integration for the firm. This role combines secure software development and hands‑on cybersecurity engineering to build scalable automation, enhance penetration testing capabilities, and strengthen SIEM-driven threat detection. The position directly supports the firm's Zero Trust, continuous monitoring, and enterprise security operations initiatives.

• Design and develop secure APIs, microservices, and software components to support penetration testing workflows.
• Build integrations between penetration testing tools, vulnerability scanners, and enterprise SIEM platforms.
• Develop log ingestion pipelines for normalization and forwarding of security telemetry into Splunk and other SIEMs.
• Automate alert enrichment, correlation, and reporting processes.
• Support integration of security findings into Governance, Risk, and Compliance (GRC) platforms.

• Deploy and maintain Kali Linux-based penetration testing environments (virtualized and cloud-hosted).
• Configure and manage penetration testing tool chains and frameworks.
• Develop custom exploit scripts, proof‑of‑concept code, and automation utilities.
• Support red team and application penetration testing engagements.

• Develop connectors and APIs for enterprise SIEM integrations.
• Implement log parsing, enrichment, and normalization logic.
• Collaborate with CSOC teams to align tool development with detection requirements.

• Develop scripts in Python, Bash, Power Shell, or similar languages.
• Implement CI/CD pipelines for security tools and integrations.
• Maintain repositories, documentation, configuration guides, and operational runbooks.
• Ensure compliance with HHSC standards, DIR security controls, and NIST frameworks.

• Bachelor’s degree in Computer Science, IT, or related field (or equivalent experience).
• 8+ years of experience building security automation and platform integrations.
• 8+ years of hands‑on experience with penetration testing tools and Kali Linux environments.
• 5–8 years of professional software development experience.
• 3–5 years of experience in:
• REST API development and enterprise system integrations
• Scripting (Python, Bash, Power Shell)
• SIEM platforms (Splunk, Sentinel, or equivalent)
• Cybersecurity fundamentals and secure coding practices
• Strong understanding of:
• Security automation and orchestration
• API integration
• Zero Trust principles

• Experience developing security data pipelines and SIEM integrations.
• Experience designing scalable security tool architectures.
• Experience with containerization/virtualization (Docker, VMware, cloud labs).
• Experience working in regulated government environments.