Network Engineer II/III

A Network Engineer II at Trustmark is responsible for ensuring network connections remain online, assisting in the design and execution of network projects, and troubleshooting LAN, WAN, and wireless issues. The role also involves documenting any incidents and changes within the network to maintain system integrity.

Trustmark prefers candidates for the Network Engineer III role to have at least 3 years of experience in Cisco routing and switching in an enterprise setting. Additional qualifications include a deep understanding of advanced network protocols, operational skills with IPS and IDS systems, and certifications like CCNA or CCNP.

The key difference lies in the level of responsibility and depth of experience. Level III engineers manage more complex tasks, including leading projects involving MPLS and QOS, while Level II engineers focus on foundational responsibilities like connectivity and troubleshooting basic network issues.

Essential technical skills for a Network Engineer at Trustmark include proficiency in TCP/IP, advanced knowledge of routing protocols like BGP and OSPF, and hands-on experience with networking equipment such as Cisco routers and switches. Familiarity with security practices and firewalls is also critical.

Network Engineers at Trustmark can expect to work in a dynamic environment that requires sitting for extended periods while using computer equipment. Flexibility in scheduling, including occasional nights and weekends, and up to 25% travel for network equipment installation, is part of the role.

When troubleshooting network issues, I first identify the scope of the problem by analyzing symptoms. I gather data on the affected areas using diagnostic tools, check logs, and review configurations. Then, I perform targeted tests, such as ping tests or using packet analyzers, to pinpoint the problem. Documenting each step taken helps maintain clarity and aids in future troubleshooting.

In my previous roles, I have extensively worked with EIGRP, OSPF, and BGP. Understanding their operational levels and best practices helped me optimize routing paths and enhance network reliability. I also have experience with managing VLANs and implementing subnetting to improve network efficiency.

To ensure network security, I implement best practices such as regularly updating firewalls and intrusion detection systems. I configure access control lists to limit unauthorized access and conduct routine vulnerability assessments to identify potential threats. It’s essential to keep up with the latest security patches and protocols to fortify the network.

I have used various network management tools like SolarWinds and PRTG for network monitoring and performance management. These tools allow me to proactively identify issues, monitor traffic patterns, and support in documentation processes, enhancing overall network reliability.

In a prior role, I led a network upgrade project where I coordinated with stakeholders to analyze current infrastructure and identified required improvements. My approach included drafting a project plan, allocating responsibilities to team members, and maintaining open communication to address issues as they arose throughout the project, ensuring a smooth transition.

I stay updated on networking technologies by reading industry blogs, following reputable sites like Cisco and engaging in online forums. I also attend webinars and enroll in courses that focus on emerging trends and technology updates to enhance my skills continuously.

When mentoring junior engineers, I focus on fostering an open environment where questions are encouraged. I utilize hands-on learning and guide them through real case scenarios to build confidence. Regular feedback and constructive criticism help them grow and understand the complexities of networking challenges.

I utilize ticketing systems to log and track changes made to the network infrastructure carefully. Detailed documentation includes the nature of the change, its rationale, and any follow-up actions required. This practice ensures accountability and aids in future troubleshooting and audits.

For testing network performance, I employ tools like Wireshark for packet analysis and Iperf for bandwidth testing. Monitoring latency, packet loss, and throughput during peak hours gives insights into the network's efficiency and areas that need optimization.

I have experience implementing high availability using protocols such as VRRP and HSRP, which help ensure network failover capabilities. Additionally, I have configured redundant links to minimize downtime and ensure consistent service availability during outages.