Hybrid Cybersecurity Senior Advisor: Risk & Hardening Leader

Thomson Reuters Markets Espana SL.; Rosemead (CA); Hybrid; USD 140,000 - 180,000; Full time

Job summary

Southern California Edison is seeking a Cybersecurity Senior Advisor to lead deep, hands-on risk assessments across IT/OT environments, validate controls, and translate findings into risk treatment plans with clear owners and timelines. You will guide threat modeling, platform hardening, and secure-by-default baselines across on-prem and cloud systems.

The role requires extensive experience, strong security fundamentals, and the ability to coordinate with internal teams and trusted vendors to

Qualifications

• Ten or more years of experience in information technology, information security and/or cybersecurity.
• US Citizenship Required.
• Familiarity with security frameworks (e.g., NIST CSF / NIST 800-53, ISO 27001) and translating requirements into implementable controls and evidence.
• Hands-on security assessment experience across enterprise environments (on-prem + cloud) including control validation, configuration review, penetration testing, code review, and/or vulnerability triage.
• CISSP, GSEC, GICSP, or other related security certifications
• Strong OS and network fundamentals (Windows/Linux internals, TCP/IP, DNS, PKI/TLS) applied to troubleshooting and security analysis.
• Operational Technology exposure (industrial networks, Purdue model concepts, segmentation, asset inventory constraints) or clear willingness to learn OT.

Responsibilities

• Leads cyber security project delivery by ensuring the cyber security team delivers on success criteria, addresses project issues and risks, and builds commitment with delivery team and internal or external partners.
• Designs, implements and maintains a secure posture and baseline across all components of the organization on‑premises and cloud IT environments, employing recognized security engineering practices and supporting secure build processes.
• Develops, maintains, and delivers secure system profiles, and maintains an overall view of compliance.
• Collaborates with the IT and Quality teams to assess, remediate, and prevent information technology risks. Drives system auditing, vulnerability risk assessments, assured file transfers, hardware and software configuration management, data integrity containments and investigations on internal affairs related security violations and incidents.
• Ensures that new and existing security applications and systems are successfully integrated during implementations, updates, and patching to maintain or increase our ability to detect and prevent security exploits.
• Collaborates with external managed security solution provider and analysts to enhance security solutions to reduce malicious and suspicious activity based on security data analysis, review of the current threat landscape, and assessment of security tickets.
• Shapes procedures and methods for auditing and addressing risk and non‑compliance to information security standards.
• Fosters strong relationships with senior leaders and stakeholders to understand and map out business priorities and how security engagement can be effectively managed to deliver secure design solutions.

Skills

Threat modeling

Security assessments

Security certifications

Vulnerability triage

OS fundamentals

Education

Bachelor’s Degree

Job description

Southern California Edison is seeking a Cybersecurity Senior Advisor to lead deep, hands-on risk assessments across IT/OT environments, validate controls, and translate findings into risk treatment plans with clear owners and timelines. You will guide threat modeling, platform hardening, and secure-by-default baselines across on-prem and cloud systems.

The role requires extensive experience, strong security fundamentals, and the ability to coordinate with internal teams and trusted vendors to