Internship Technical Support resume example

• Under supervision, reproduced a customer issue using sanitized logs and the reported product version; supplied engineering with exact steps, expected behavior and a verified temporary workaround.
• The team created a log-based diagnostic path for 12 common API failures; I supported research preparation, validation, and documentation under mentor review. The team removed the longest wait from the end-to-end workflow; confirmed with my mentor that my contribution was limited to the assigned support and validation work.
• The team partnered with engineering to tag and review the top 20 defect-driven cases each month; I supported research preparation, validation, and documentation under mentor review. The team reduced repeat customer contacts around the same issue; confirmed with my mentor that my contribution was limited to the assigned support and validation work.
• Under supervision, owned troubleshooting for a recurring customer connection failure using packet captures, resolving a DNS configuration mismatch and confirming recovery with the customer.
• Under supervision, published an incident-response runbook based on on-call case reviews, reducing time to gather a complete escalation bundle from 35 to 15 minutes in rehearsal.

• In a mentor-reviewed simulation, performed networking troubleshooting with packet captures, DNS checks, and service logs; isolated a certificate-chain failure and gave the customer a verified recovery procedure instead of a generic restart request.
• As a second supervised exercise, handled on-call incident response with customer-impact prioritization, keeping a timeline of symptoms and actions; used customer service updates to distinguish confirmed facts, workarounds, and the next check-in.
• Under supervision, the team rewrote 36 customer-facing troubleshooting articles with verified reproduction steps; I supported research preparation, validation, and documentation under mentor review
• Configured a separate test environment with a documented network diagram, account permissions and failure scenarios; captured the logs needed to distinguish connectivity, authentication and application faults.
• Tested the recovery guide from a fresh account, checked required permissions at each step, and added rollback instructions where a configuration change could disrupt the working baseline.
• Owned the recovery rehearsal using an isolated test account, resolved a missing permission prerequisite and completed the restore without changing the working baseline.

Relevant coursework: Algorithms, operating systems, databases, computer networks

• Published an independent troubleshooting guide using annotated logs, separating connectivity, authentication and application failures and documenting the rollback decision at each step.