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Core network engineer skills for your resume and career

Updated January 8, 2025

5 min read

Quoted experts

Dr. Paulo Alexandre Regis Ph.D.,

Dr. Paulo Alexandre Regis Ph.D.

Below we've compiled a list of the most critical core network engineer skills. We ranked the top skills for core network engineers based on the percentage of resumes they appeared on. For example, 10.2% of core network engineer resumes contained ip as a skill. Continue reading to find out what skills a core network engineer needs to be successful in the workplace.

15 core network engineer skills for your resume and career

1. IP

An IP - Internet Protocol is a unique number assigned to all devices connected to information technology, such as printers, routers, modems, etc. Each device or domain that connects to the Internet is assigned an IP address, and as packets are directed to the IP address attached to them, the data goes where it is needed. IP addresses are the identifier used to send information between devices on a network. They contain location information and make devices accessible for communication.

Here's how core network engineers use ip:

Performed IP planning along with network equipment configuration.
Order equipment and assign IP ports required to configure IP over SS7 (SGSN) interfaces.

2. Java

Java is a widely-known programming language that was invented in 1995 and is owned by Oracle. It is a server-side language that was created to let app developers "write once, run anywhere". It is easy and simple to learn and use and is powerful, fast, and secure. This object-oriented programming language lets the code be reused that automatically lowers the development cost. Java is specially used for android apps, web and application servers, games, database connections, etc. This programming language is closely related to C++ making it easier for the users to switch between the two.

Here's how core network engineers use java:

Implemented support elements for this plug-in layer that allowed java tools to be used in the collaborative framework with minimal effort.
Scripted tools using Java, Perl and SQL Plus to collect data for the web based reporting.

3. Troubleshoot

Troubleshooting is the process of analyzing and fixing any kind of problem in a system or a machine. Troubleshooting is the detailed yet quick search in the system for the main source of an issue and solving it.

Here's how core network engineers use troubleshoot:

Worked with field techs to troubleshoot any voice or data issues upon new installs, i.e.
Analyze and Troubleshoot Network Performance issues with Cisco NAM & Distributed Sniffer.

4. Linux

Linux is a Unix-like operating system. Just like Windows, Mac OS, and IOS, Linux is an operating system used by millions across the globe. Android itself is powered by the Linux operating system. Linux manages all the hardware resources that are associated with your computer. The software is famous because of the protection it grants from viruses, malware, and crashes. The Linux operating system is entirely free and is an open-source software meaning it can be altered by those equipped with the knowledge to code.

Here's how core network engineers use linux:

Developed software using a combination of Linux, Python, and R for test and production environments.
Configured and maintained network's Linux based ISP nodes DNS, DHCP, FTP, Web, SNMP.

5. Network Design

Here's how core network engineers use network design:

Drafted network design documents and China Mobile DRA functional and test specification.
Participated in architecture and review of global core network design.

6. Ethernet

Ethernet refers to a system that connects a series of computers in a local area network (LAN). This is often done through ethernet cables, which plug into a router or other port in the modem in addition to the computer port. As ethernet connects only a local network, there are more protocols regarding how information is transmitted.

Here's how core network engineers use ethernet:

Verified, tested and turned up Alcatel-Lucent 1850 suite equipment and facilities providing Ethernet services for Cell Phone back Haul.
Worked with ADVA for circuit continuity for the Ethernet over SONET networks.

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7. Juniper

Juniper Networks, Inc. develops and markets networking products and software which include routers, network management software, and network security products. Many large enterprises use Juniper products and software as part of their larger networking operating management suite.

Here's how core network engineers use juniper:

Participate with the implementation of nightly maintenance activities on Juniper routers supporting the national IP backbone network as directed by engineering.
Lead Engineer for the Juniper Network Security Manager upgrade to high availability configuration in all environments.

8. Debugging

Here's how core network engineers use debugging:

Worked in Troubleshooting team debugging and resolving customer issues in field.

9. Unix

UNIX is a computer operating system that was first created in the 1960s and has been constantly updated since then. The operating system refers to the set of programs that enable a machine to function. It is a multi-user, multi-tasking device that works on computers, laptops, and servers. UNIX systems also have a graphical user interface (GUI), similar to Microsoft Windows, that makes it simple to use.

Here's how core network engineers use unix:

Managed marketing and exec team's ad-hoc inquiries via PERL, PL/SQL, SQL and Unix script processes.
Planned enhanced services for Intelligence Network (IN) node Extracted key performance indices of UNIX servers

10. Ip Networks

Here's how core network engineers use ip networks:

Assisted in the design of IP Networks based on standard system design methodologies.
Network Integration Engineer for VoIP networks.

11. IoT

Here's how core network engineers use iot:

Finished hardware installation, IOT: SAT and PAT of OSN 8800 for NEMESIS Project Roll Out.
Performed IOT in Huawei LAB environment and made necessary configuration changes to implement live.

12. Virtualization

Here's how core network engineers use virtualization:

Architected hundreds of implementation with equipment including HP/Sun/Oracle/EMC/Hitachi hardware and software with a huge emphasis on virtualization.
Managed Virtualization Project implementation utilizing VMware Vshere4.

13. OSPF

Here's how core network engineers use ospf:

Implemented, maintained and designed OSPF configurations.
Set up adjacencies for load-sharing, redundant paths, and troubleshot any other OSPF related issues.

14. BGP

The Border Gateway Protocol (BGP) is a procedure that facilitates the exchange of routing information among different networks connected through the internet. It also refers to the electronic language used among internet routers, to determine how a piece of information is sent from one router to the other over the network. This process is extremely quick that occurs within mini-seconds, enabling the internet to function properly.

Here's how core network engineers use bgp:

Adjusted incoming/outgoing traffic at egress points as needed, set up customer peering, and troubleshot any other BGP related problems.
Execute redundancy improvements, utilizing HSRP and BGP, avoiding cellular traffic interruption.

15. Switches

Here's how core network engineers use switches:

Configured, maintained and troubleshot different types of RAD modems, servers, Cisco routers and switches L2/L3.
Configured the core, distribution, access Cisco Routers and Switches for Routing and Switching.

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What skills help Core Network Engineers find jobs?

Tell us what job you are looking for, we’ll show you what skills employers want.

What skills stand out on core network engineer resumes?

Dr. Paulo Alexandre Regis Ph.D.

Assistant Professor of Computer Science, Southeastern Louisiana University

Designing system configuration, establishing networking systems.

What soft skills should all core network engineers possess?

Dr. Paulo Alexandre Regis Ph.D.

Assistant Professor of Computer Science, Southeastern Louisiana University

Understanding the business/client needs and translating them into actionable networking technology (i.e., requirements). Ability to communicate technical terms to non-technical users/clients/managers.

Do you want to know more?

List of core network engineer skills to add to your resume

The most important skills for a core network engineer resume and required skills for a core network engineer to have include:

IP
Java
Troubleshoot
Linux
Network Design
Ethernet
Juniper
Debugging
Unix
Ip Networks
IoT
Virtualization
OSPF
BGP

Switches
LAN
Packet Core
Network Topology
SIP
Configuration Management
LTE
QoS
DNS
Provisioning
Alcatel
CS
Technical Support
HLR

Wireshark
MME
Network Troubleshooting
VPN
Is-Is
Broadband
VoIP
Lan Wan
Network Issues
Test Cases
STP
SLA
GY

Updated January 8, 2025

Zippia Team

Editorial Staff

The Zippia Research Team has spent countless hours reviewing resumes, job postings, and government data to determine what goes into getting a job in each phase of life. Professional writers and data scientists comprise the Zippia Research Team.

Updated January 8, 2025

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