Network Security Engineer

Lintasarta (Jakarta, Indonesia)

DKI Jakarta, Indonesia

Lintasarta is an Information and Communication Technology (ICT) total solutions company founded in 1988. We have enabled companies to grow beyond their capabilities regarding digital transformation. For over three decades, we have become a pioneer in many services for all industry segments, including finance, resources, government, manufacturing, services, trading/distribution, etc. We are proud to serve more than 2.400 corporate clients and we will continue evolving to keep delivering services and solutions in each industry. We are supported by certified experts and local support that encourage our growth to enhance businesses and government performance in accelerating digital transformation. The challenge upon us is unforeseeable, but our commitment to bring connectivity and empower people and the nation remains steady. Lintasarta #EmpoweringYourFuture

About this position

Lintasarta is a leading Indonesian telecommunications and IT solutions provider, specializing in business-to-business (B2B) services. We are looking for a Network Security Engineer to join our team and help protect our organization’s networks from cyber threats.

Responsibilities

• Network Security Management: Deploy, configure, and manage security solutions including Trend Micro IPS, Trend Micro NDR, F5 WAF/API Security, Cisco WSA Web Proxy, and Cisco Email Security.
• Threat Detection & Response: Monitor network traffic for suspicious activity, detect potential attacks, and respond promptly to mitigate risks.
• Incident Handling: Investigate network security incidents, perform root cause analysis, and coordinate with other teams for remediation.
• Policy Implementation: Develop and enforce network security policies and procedures to ensure compliance with industry standards.
• Vulnerability Management: Perform vulnerability assessments and patch management to address security weaknesses in the network.
• Optimization & Tuning: Continuously optimize and fine-tune security tools to improve detection accuracy and minimize false positives.
• Collaboration & Reporting: Work with cross-functional teams to enhance the overall security posture, and provide regular reports on network security performance.

Requirements

• Bachelor’s degree in Computer Science, Cybersecurity, Network Engineering, or related field, or equivalent experience.
• 3-5 years of experience in network security or a similar role.
• Hands-on experience with Trend Micro IPS, Trend Micro NDR, F5 WAF/API Security, Cisco WSA Web Proxy, and Cisco Email Security.
• Skills:
• Strong knowledge of network security protocols, firewall management, and intrusion prevention systems (IPS).
• Experience with web application security, email security, and proxy management.
• Familiarity with threat detection systems like Trend Micro NDR and Trend Micro IPS.
• Understanding of network traffic analysis, vulnerability assessments, and incident response.
• Basic scripting skills (e.g., PowerShell, Python) for automation and security operations is a plus.
• Excellent communication skills for working with internal teams and providing incident updates.