Senior Infrastructure Pen Tester - Onsite San Jose

Sonata Software North America Inc.; San Jose (CA); On-site; USD 140,000 - 170,000; Part time

Job summary

Sonata Software North America Inc. is seeking a Senior Infrastructure Penetration Tester to join our Offensive Security team in San Jose, CA.

The role demands hands-on testing across large-scale enterprise infrastructure, cloud environments, identity systems, and networks, with collaboration across engineering and security operations to reduce risk. The ideal candidate will have 6+ years of experience, strong AD/identity security knowledge, and the ability to present findings to technical and

Qualifications

• 6+ years of professional experience in penetration testing, offensive security, infrastructure security, or related cybersecurity disciplines.
• Strong hands-on experience conducting enterprise infrastructure penetration tests.
• Deep understanding of TCP/IP networking and common enterprise protocols.

Responsibilities

• Plan and execute internal and external infrastructure penetration tests across large enterprise environments.
• Assess Windows, Linux, Unix, network, virtualization, container, and hybrid infrastructure.
• Conduct network, host, service, and application-layer security testing.
• Identify vulnerabilities and demonstrate realistic attack paths and business impact.
• Perform authenticated and unauthenticated penetration testing.
• Conduct lateral movement, privilege escalation, credential-access, and persistence assessments within authorized environments.
• Evaluate segmentation and security controls between corporate, production, R&D, cloud, and restricted environments.
• Assess security of common enterprise services including DNS, DHCP, VPN, SSH, HTTP/S, LDAP, Kerberos, SMB, RDP, databases, proxies, and authentication infrastructure.

Skills

Offensive Security Mindset

Identity & Active Directory Security

Adversary Simulation

Automation & Tool Development

Risk-Based Thinking

Strong Technical Communication

Tools

Windows

macOS

Cloud platforms (AWS/GCP/Azure)

Containers/Docker/Kubernetes

Job description

Sonata Software North America Inc. is seeking a Senior Infrastructure Penetration Tester to join our Offensive Security team in San Jose, CA.

The role demands hands-on testing across large-scale enterprise infrastructure, cloud environments, identity systems, and networks, with collaboration across engineering and security operations to reduce risk. The ideal candidate will have 6+ years of experience, strong AD/identity security knowledge, and the ability to present findings to technical and