Abraham Jose
Principal Cybersecurity Architect - Industrial Control Systems & Iot @Pacific Gas and Electric Company
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WORK HISTORY
Principal Cybersecurity Architect - Industrial Control Systems & Iot @Pacific Gas and Electric Company
San Francisco, CA, US
Provided end-to-end technical program leadership for the OT cyber portfolio across over 300 critical sites, including data centers, control centers, generation facilities, and substations. Managed schedules, dependencies, RAID, and BRD/PRD documentation.Created Technical Program Management Strategy to adopt comprehensive OT Cybersecurity advanced capabilities for mission critical infrastructure - confidential.Conducted interdependency mapping throughout mechanical, electrical, and network layers, and coordinated operational change windows. Reduced rework by approximately 30% and decrease in change-collision incidents.Implemented risk analysis and assessment using frameworks such as NIST 800-30 and IEC 62•••32; Led development of OT risk register and key risk indicators, supporting quarterly risk reduction efforts like mitigating lateral movement exposure.Scaled segmentation strategies for zones and conduits (such as VLAN/VRF and Zero Trust Architecture) and improved SIEM telemetry tuning for OT asset alerts, leading to a reduction in mean time to detection by about 25–35%, and in false positive rates by 20–40% following iterative adjustments.Owned & delivered EMS/ADMS/DERMS security practices, standardized product requirement documents (PRD) and processes for cutover and rollback.Developed a distributed energy resource management system (DERMS) gateway security standard recognized by EPRI to support renewable energy adoption in California and globally
EDUCATION
MSU Baroda
Engineering
SKILLS
ABOUT ABRAHAM JOSE
I lead multi-site OT/ICS cybersecurity programs at data-center scale, focused on measurable risk reduction. I’ve delivered segmentation, PAM, and telemetry across BMS/PMS-analogous systems (SCADA/EMS/DCS), authoring BRDs/PRDs with phase-gated OKRs/KPIs, acceptance, and rollback criteria. My approach starts with risk analysis/assessment (NIST 800-30, IEC 62•••32) and ties KRIs to quarterly reductions in lateral-movement exposure and incident rates. I orchestrate interdependency mapping across mechanical/electrical/network stacks and partner with 24×7 Ops, data center / substation business Ops to sequence changes safely, reduce rework, and maintain availability. Technically, I scale zone/conduit designs for zero trust architecture and tune asset visibility telemetry to SIEM improving MTTD/MTTR while meeting regulated-operations constraints (NERC/TSA). I enjoy ambiguous, cross-functional programs where clear success metrics, BRD/PRD rigor, and hands-on coordination drive reliable outcomes.
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