Must Have Technical/Functional Skills Tier 3 (L3) IT Infrastructure engineers comprise a technical team that deals with technical problems. Troubleshooting, configuration, database administration, and repair for server, network, infrastructure, Data Center, email, file shares, and other infrastructure issues. Besides always having the ability to deploy solutions to new problems, Level 3 tech usually has the most expertise in a company and is the go-to person for solving difficult issues With yea