Marc David Email & Phone Number

San Francisco, Ca, Us

Senior Security Engineer leading strategic security initiatives for a rapidly-growing healthcare technology company. Driving innovation in threat detection, incident response, and security automation while ensuring compliance with HIPAA, HITRUST, and SOC 2 frameworks.Key Achievements:- Led implementation of Island Browser managed solution, reducing insider threat risk while achieving significant cost savings through consolidation of security tools- Architected and deployed enhanced security monitoring system using Sumo Logic SIEM, reducing false positives by 50% through strategic rule tuning- Spearheaded security awareness program reaching 60+ employees with 100% engagement rate, focusing on emerging threats and compliance requirements- Automated key security processes using Python and AI/ML, reducing manual effort by 100% and improving detection accuracy- Orchestrated successful HITRUST and SOC 2 audit responses with zero findings, maintaining continuous compliance- Developed comprehensive API security testing program, enhancing application security posture- Implemented Okta Verify with Number Matching, strengthening authentication security against phishing attacks- Architected and implemented AI-powered monitoring solution for BYOD compliance, automating detection of out-of-region device access- Developed custom Python automation scripts to enhance geographic access controls, improving security posture for remote workforce- Reduced manual monitoring effort by 80% while strengthening compliance with data sovereignty requirements

San Francisco, Ca, Us

Security Engineer responsible for building and scaling core security programs during period of rapid company growth. Led implementation of fundamental security controls and awareness initiatives.Key Achievements:- Implemented DMARC, SPF, and BIMI protocols, achieving 100% reduction in domain spoofing attempts- Established and led company-wide security awareness program, resulting in measurable improvement in security culture and reduced incidents- Designed and deployed enterprise-wide DLP solution, protecting sensitive healthcare data across cloud and endpoint systems- Built automated threat hunting program reducing mean time to detect (MTTD) by 5%- Led incident response for 7 critical incidents with 100% successful resolution rate- Managed vulnerability assessment program across cloud and on-premise infrastructure, achieving 25% reduction in critical vulnerabilities- Created and maintained security policies aligning with HIPAA, HITRUST, and SOC 2 requirements

Walnut Creek, California, Us

Cyber Security Engineer leading security assessments and implementations for diverse client base. Focused on risk reduction and security architecture improvements.Key Achievements:- Implemented enterprise password management solution improving password uniqueness by 70%- Deployed AES 256 encryption across corporate infrastructure, preventing potential $600K data loss incident- Designed and implemented Zero Trust architecture using PfSense IDS/IPS, reducing network threats by 75%- Created risk assessment framework based on NIST 800-53, saving clients $18,000 annually in compliance costs- Led security awareness training for 100+ employees, improving security posture metrics by 33%

Charlotte, Nc, Us

SharePoint architecture, antivirus, migrations and disaster recovery. Lead projects for SharePoint migrations. Setup SharePoint farm and configuration of services on SharePoint 2016 platforms with best security practices in mind. Migrating legacy SharePoint infrastructure to SharePoint 2013. Responsible for coordinating effective antivirus, PKI, Data Loss Protection (DLP) solutions on SharePoint. • Moved sites in 25% less time than a manual migration. $150k personnel save; $200k contractor labor save; $50k on custom code save. • Migrated over 2.7 TB of information, 14,000 team-sites and 145,000 users. Exceeded expectations by delivering project 3 weeks ahead of projected schedule. • Produced 15 SharePoint step-by-step instructional videos videos from scratch that reduced Helpdesk calls over 20%. • Responsible for coordinating effective antivirus protection leading to a 0% virus and malware infection rate since SharePoint was implemented. • Implementation of rich user profiles using the User Profile Synchronization which resulted in over the removal of 33276 invalid objects. Resulted in a usable and clean directory for SharePoint MySites. • Spearheaded an internal social networking site (CMS), projected to save $1.5M in annual license costs.

Charlotte, Nc, Us

Proposed a server virtualization (Six Sigma) project that projected annual savings in hardwarecosts of over $1billion. I developed virtual test environments on VMWare virtual machine technology. I was a liaison for messaging working in tandem with account teams, customer, and key stakeholders. Designed Windows Rights Management servers, tested IPSec and supported PKI for end to end communications. Designed MS Operations Management Pack/Windows 2000 Security that was first-generation security monitoring for this product. Utilized by over 5 large organizations. Participated in secure Windows design, build and implementation. Threat hunting experience in large corporate infrastructure environment.Responsibilities: - Build and deploy systems - Configuration management - Definition and enforcement of system security policies - Definition and implementation of authorization/authentication services - Research/implement new security technologies - Management/Review of system security configuration and architecture - Formulating and implementing monitoring, policies, procedures and standards - Support ongoing and new security/compliance initiatives

Charlotte, Nc, Us

Member of national messaging team, providing 3rd Level technical support for Exchange.• Maintained SQL and IIS servers and performed disaster recovery scenarios• Made numerous successful improvements to environment, including: diagnosing/correctingSMTP routing issues, implementing Gateway Services for Netware and enhancing NetIQarchitectural design and development

San Ramon, Ca, Us

Core member of Microsoft Exchange messaging infrastructure team providing Level 3 support for aninternational organization.• Maintained a 99.9% up-time and delivery of Exchange e-mail services.• Presided over all system migrations and MS Exchange installations.

San Ramon, Ca, Us

Presided over all system migrations and MS Exchange installations.

San Ramon, Ca, Us

Provided project management for Exchange migrations, including Remote Access Service set-up for international clients.

B.A., Criminal Justice

A.S., Criminal Justice