Justin Gosine
Cybersecurity Engineer
New York,NY
Summary
IT Security Engineer manages Netskope proxy and firewall policy for segmented, air-gapped environments, tightening least-privilege access and controlled egress. Partners with infrastructure, network, endpoint, and application teams to turn security requirements into enforceable access controls and resolve connectivity issues without breaking security boundaries. Automates security operations with Tines and integrates telemetry across Netskope, LogRhythm, CrowdStrike, Azure, and CyberArk to improve alert enrichment, case routing, and privileged-access visibility.
Overview
1
1
Certification
5
5
years of professional experience
Work History
IT Security Engineer
BHI
New York, New York
10.2025 - Current
- Integrate security telemetry and operational workflows across Netskope, LogRhythm, CrowdStrike, Azure, and CyberArk to improve visibility across network, endpoint, cloud, and privileged-access controls.
- Collaborated with infrastructure, network, endpoint, and application stakeholders to translate security requirements into enforceable proxy, firewall, and access-control policies that enhance overall security posture.
- Engineer and maintain Netskope proxy and firewall policies for a segmented, air-gapped environment, applying least-privilege access and controlled-egress principles to reduce unnecessary network exposure.
- Developed and maintained Tines automation workflows to standardize security operations, enrich alerts, route cases, and generate notifications, minimizing repetitive manual investigation tasks.
- Integrated security telemetry and operational workflows across Netskope, LogRhythm, CrowdStrike, Azure, and CyberArk to enhance visibility across network, endpoint, cloud, and privileged-access controls.
Cybersecurity Engineer
Hachette Book Group
New York, New York
08.2022 - 10.2025
- Led incident response and threat intelligence efforts, leveraging security automation to enhance organizational resilience against evolving cyber threats.
- Collaborated with DevOps and Server Operations teams to implement security frameworks, enhancing threat mitigation and ensuring compliance across enterprise systems.
- Implemented secure software development lifecycle practices, bolstering application security and minimizing vulnerabilities during development.
- Monitored AWS CloudTrail and GuardDuty logs daily, identifying and mitigating over 20 unauthorized-access attempts, contributing to compliance KPIs.
Junior Security Analyst
Hachette Book Group
New York, New York
05.2022 - 08.2022
- Investigated and escalated Level 1 security incidents using LogRhythm SIEM, ensuring rapid threat detection and response.
- Investigated and escalated Level 1 security incidents using LogRhythm SIEM, facilitating rapid threat detection and response.
- Identified, scanned, and remediated Level 4 and Level 5 vulnerabilities across servers and virtual machines using Qualys, reinforcing system security posture.
- Managed email-security administration with Mimecast, improving phishing detection, spam filtering, and email threat prevention.
IT Security Intern
Hachette Book Group
06.2021 - 05.2022
- Designed and enforced IAM policies, reducing unauthorized-access incidents by 30% and improving identity and access-management security.
- Assisted in enforcing least-privilege access by auditing critical applications, minimizing excess permissions and reducing security risks.
- Worked with technology teams to implement the information-security program, strengthening the organization’s overall security posture.
- Conducted access-control audits and managed asset tracking, ensuring enforcement of security policies and compliance standards.
Education
Master of Business Dual Degree - Cybersecurity Systems / Information Systems
St. John’s University
Jamaica, NY06.2022
High School Diploma -
School of The Future
New York, NY06.2017
International Baccalaureate MYP Certification -
ACS Doha International School
Doha, Qatar06.2015
Skills
- Python
- PowerShell
- Bash
- Microsoft Azure
- Splunk
- Microsoft Sentinel
- Incident response
- Threat intelligence analysis
- Alert triage
Certification
AttackIQ Intermediate, MITRE ATT&CK Certificate, ISO/IEC 27001:2022 Lead Auditor, Microsoft Certified: Security, Compliance, and Identity Fundamentals, CCNA: Switching, Routing, and Wireless Essentials
Timeline
IT Security Engineer
BHI
10.2025 - Current
Cybersecurity Engineer
Hachette Book Group
08.2022 - 10.2025
Junior Security Analyst
Hachette Book Group
05.2022 - 08.2022
IT Security Intern
Hachette Book Group
06.2021 - 05.2022
Master of Business Dual Degree - Cybersecurity Systems / Information Systems
St. John’s University
High School Diploma -
School of The Future
International Baccalaureate MYP Certification -
ACS Doha International School