# Work Experience- Abhishek Kumar

**Progressive InfoTech,** Noida— Technical Support Engineer

From 06-Sept-2021 To 09-Apr-2022

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1725360700490/d1670780-9dba-42bd-b4ee-1ef0d8c61b3f.png align="center")

* **Customer Issue Resolution:** Took ownership of customer issues reported and saw problems through to resolution using **ServiceNow** and **Jira** ticketing-Bug report tools.
    
* **Network Security:** Managed switch port security features such as port-based authentication **(802.1X),** MAC address filtering, and sticky MAC address learning, safeguarding against unauthorized access.
    
* **System Support:** Provided support for **Windows** and **Linux-based** systems, overseeing the administration, configuration, and troubleshooting of servers, **workstations**, and **network** infrastructure.
    
* **VLAN Implementation:** Implemented VLANs to logically segment network traffic, enhancing security and efficiency by isolating **broadcast** **domains** and controlling network access.