Senior Network Engineer
ที่บริษัท พีทีจี เอ็นเนอยี จำกัด (มหาชน)About the role
This role involves designing, implementing, monitoring, and maintaining enterprise network infrastructure across on-premises and cloud environments. You will manage network connectivity and security across Azure and AWS, troubleshoot incidents, and support infrastructure projects from design through implementation and optimization.
Key responsibilities
- Design, implement, monitor, and maintain enterprise network infrastructure, including LAN/WAN, SD-WAN, Data Center Network, Firewall, VPN (Site-to-Site/SSL), Aruba Wireless, DNS, and DNSSEC.
- Manage and support cloud network connectivity and security across Azure and AWS environments, including VNet/VPC, VPN Gateway, Routing, NSG, and Cloud Firewalls.
- Monitor network availability, performance, capacity, and security to ensure system stability and business continuity.
- Troubleshoot and resolve network incidents, perform Root Cause Analysis (RCA), and implement corrective and preventive actions.
- Manage network configuration, firmware upgrades, security patching, vulnerability remediation, and change management activities.
- Prepare and review Technical Requirements, Terms of Reference (TOR), and technical specifications for network infrastructure and security solutions.
- Conduct technical evaluations, Proof of Concept (POC), solution testing, and TOR compliance verification before implementation.
- Support network infrastructure projects, including solution design, planning, implementation, migration, and performance optimization.
- Coordinate and attend meetings with Business Units (BU), IT teams, vendors, and relevant stakeholders to gather requirements, investigate issues, identify solutions, and support project delivery.
- Support Disaster Recovery (DR), network redundancy, high availability, and business continuity requirements.
- Prepare and maintain network diagrams, configurations, technical documentation, operational procedures, and performance reports.
- Collaborate with infrastructure, security, application, and development teams to ensure secure and reliable network connectivity.
- Provide technical consultation, knowledge sharing, and recommendations for network improvement and problem resolution.
- Support planned maintenance, critical incidents, and other assigned IT infrastructure activities, including after-hours support when required.
Qualifications :
- Bachelor's degree or higher in Computer Science, Information Technology, Computer Engineering, or related fields.
- 5–8 years of hands-on experience in enterprise network infrastructure, implementation, and operations.
- Strong knowledge of TCP/IP, Routing, Switching, VLAN, BGP/OSPF, Firewall, VPN, DNS, and network security.
- Experience with enterprise network solutions such as Cisco, Aruba, Palo Alto, Fortinet, or equivalent technologies.
- Experience in network troubleshooting, incident management, Root Cause Analysis (RCA), and production support.
- Ability to perform network design, technical evaluation, TOR preparation, POC, testing, and implementation.
- Knowledge of cloud networking, particularly Microsoft Azure; AWS experience is an advantage.
- Familiarity with network monitoring, performance optimization, security hardening, and change management.
- Strong analytical, problem-solving, communication, coordination, and teamwork skills.
- Able to work independently and collaborate effectively with Business Units, internal teams, and external vendors.
- Self-motivated, service-minded, proactive, and willing to learn new technologies.
- Willing to support maintenance activities or critical incidents outside normal working hours when necessary
Preferred Qualifications :
- Certifications such as CCNA, CCNP, Microsoft AZ-700, or equivalent.
- Experience with hybrid-cloud or multi-cloud network environments.
- Knowledge of WAF, DNS Security, DNSSEC, Zero Trust, and network automation.
- Experience supporting large-scale enterprise or multi-branch network infrastructure.
- Experience preparing technical specifications, evaluating vendor proposals, and verifying TOR compliance.
ประสบการณ์ที่จำเป็น
- ไม่ระบุประสบการณ์ขั้นต่ำ
เงินเดือน
- สามารถต่อรองได้
สายงาน
- ไอที / เขียนโปรแกรม
ประเภทงาน
- งานประจำ
เกี่ยวกับบริษัท
เมื่อ 20 กว่าปีก่อน ในวันที่ 21 มีนาคม 2531 บริษัท ภาคใต้เชื้อเพลิง จำกัด ได้ก่อตั้งขึ้นบนความตั้งใจ ประกอบกิจการคลังน้ำมัน และค้าน้ำมันเชื้อเพลิงให้กับชุมชน ผู้ประกอบการประมงและโรงงานอุตสาหกรรม เริ่มต้นจากภาคใต้ของประเทศไทย จากบริษัท ภาคใต้เชื้อเพลิง จำกัด ได้จดทะเบียนเปลี่ยนสู่ บริษัท พ ...
ร่วมงานกับเรา: Joining PTG means becoming part of a dynamic and innovative company that is committed to sustainable growth and customer satisfaction. With over 30 years of experience, PTG offers a collaborative work environment that encourages personal and professional development.

