Firewall Engineer | Trinity Consulting Services | KL, Malaysia

Trinity Consulting Services; Kuala Lumpur; On-site; MYR 100,000 - 167,000; Full time

Job summary

Trinity Consulting Services seeks a seasoned Firewall Engineer to design, deploy, and manage enterprise firewall solutions within our Kuala Lumpur client environment. You will enforce security policies, administer VPN tunnels, and mitigate threats to ensure high availability and robust security across critical IT infrastructure.

The role requires 3+ years in IT infrastructure, hands-on firewall experience, and strong networking knowledge.

Qualifications

• Bachelor's degree in a technical field.
• Minimum 3+ years in IT infrastructure or network engineering.
• Hands-on firewall administration and VPN experience.
• Proficient in core networking protocols and diagnostic tools.
• Strong English communication and on-site availability in Kuala Lumpur, Malaysia.
• Legal work eligibility for Malaysia.

Responsibilities

• Design, implement, and maintain enterprise firewall infrastructure and security policies.
• Monitor system health and performance across production environments.
• Troubleshoot hardware, software, and network failures.
• Collaborate with cross-functional engineering, systems, and security teams.
• Perform upgrades, patches, and vulnerability remediation.
• Maintain documentation and change logs.

Skills

3+ years IT infra

Enterprise firewall

Security policy enforcement

VPN tunnels

Threat mitigation

Core networking

English communication

Education

Bachelor's degree in CS/Telecom/IT

Tools

CCNP

RHCE

CISSP

Job description

Position Summary

Trinity Consulting Services is actively seeking an experienced, high-caliber, and technical Firewall Engineer with specialized professional expertise in telecommunications and enterprise IT infrastructure to join our premier client on a full-time permanent on-site basis in Kuala Lumpur, Malaysia. In this critical technical operations role, you will be responsible for designing, deploying, securing, and maintaining robust enterprise infrastructure focusing on enterprise firewall administration, security policy enforcement, VPN tunnels, and threat mitigation. You will leverage your deep specialist expertise in network security, systems administration, and core infrastructure operations to deliver uncompromised system reliability, high availability, and operational excellence. This opportunity offers competitive compensation, executive technical visibility, and exceptional career growth prospects within a premier global IT recruitment and consultancy enterprise.

Detailed Job Description

As a Firewall Engineer supporting our enterprise client in KL, Malaysia through Trinity Consulting Services, you will take full operational, tactical, and technical ownership of infrastructure maintenance, incident resolution, change implementation, and performance optimization. Your day-to-day responsibilities include configuring and administering enterprise systems, monitoring network and server health, troubleshooting complex technical anomalies across production environments, executing security hardening and software updates, collaborating closely with cross-functional engineering squads, and maintaining meticulous technical documentation. You will utilize your proactive troubleshooting and analytical problem-solving skills to resolve complex operational bottlenecks under strict service level agreements.

Key Responsibilities

• Design, implement, configure, and maintain robust enterprise infrastructure and enterprise firewall administration, security policy enforcement, VPN tunnels, and threat mitigation solutions.
• Monitor system performance, resource utilization, and operational health proactively across production environments.
• Troubleshoot, diagnose, and resolve high-severity hardware, software, and network configuration failures.
• Collaborate seamlessly with cross-functional network engineering, systems administration, and security squads.
• Execute scheduled infrastructure upgrades, firmware patches, and security vulnerability remediations.
• Ensure strict adherence to enterprise security policies, compliance standards, and industry best practices.
• Maintain comprehensive technical documentation, network topologies, incident runbooks, and change management logs.
• Participate in on-call support rotas and scheduled maintenance windows where required for high-availability systems.

Required Qualifications & Skills

• Bachelor's degree in Computer Science, Telecommunications Engineering, Information Technology, or a related technical discipline.
• Minimum of 3+ years of progressive professional experience in IT infrastructure, network engineering, or systems administration.
• Strong, demonstrable hands-on technical proficiency in enterprise firewall administration, security policy enforcement, VPN tunnels, and threat mitigation and enterprise environments.
• Solid practical understanding of core networking protocols, operating systems, and diagnostic tools.
• Exceptional analytical, troubleshooting, debugging, and problem-solving capabilities under mission-critical conditions.
• Excellent written and verbal English communication skills with strong stakeholder collaboration abilities.
• Mandatory legal work eligibility and physical availability for full-time on-site operations in Kuala Lumpur, Malaysia.

Nice-to-Have Skills

• Professional vendor certifications relevant to networking, Linux administration, or security (e.g., CCNP, RHCE, CISSP).
• Prior professional working experience within tier-1 telecommunications operators, managed service providers, or multinational enterprises.
• Hands-on familiarity with automation scripting languages (Python, Bash) and infrastructure monitoring suites.
• Experience with cloud platforms (AWS, Azure, GCP) and containerized deployment environments.

Contract and Remuneration Details

Salary/Rate: Market Competitive / Enterprise Technology Package

Deadline: Open until filled (Urgent Kuala Lumpur On-Site Opening)

Notice Period: Immediate to 30 Days Preferred

Contract Duration: Permanent / Full-Time On-Site Engagement (Kuala Lumpur, Malaysia)

Recruitment Pro Tip

When applying for this Firewall Engineer position, ensure your resume explicitly highlights your hands-on technical portfolio matching the role requirements, and confirms your availability for on-site work in Kuala Lumpur, Malaysia.