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L3 Jobs (NOW HIRING)

Tata Consultancy Services

L3 Infrastructure Engineer

Pearl, MS · On-site

$92K - $121K/yr

Role - L3 Infrastructure Engineer Location - Blue Springs, MS Type of hire - Full Time Must Have Technical/Functional Skills • Tier 3 (L3) IT Infrastructure engineers comprise a technical team that ...

krg technology inc

Backup (L2 / L3)

Cincinnati, OH · On-site

Company Description shijo KRG Technologies, Inc., shijo(at)krgtech.com 25000 Avenue Stanford, Suite #243, Valencia, CA 91355 Direct: 661-310-0202 Backup (L2 / L3) History with solid resources like ...

Syntricate Technologies

Linux L3 SME

Kansas City, KS · On-site

Syntricate Technologies is seeking a Linux L3 SME to manage and optimize their Linux server environments. The role involves installing, configuring, and maintaining Linux servers while ensuring ...

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L3 information

What is an L3?

L3 typically refers to a 'Level 3' position within a company's job leveling system, especially in technology firms. It often indicates an entry-level or early-career role, such as a software engineer who has some professional experience but is not yet at a senior or specialized level. The responsibilities usually include writing code, fixing bugs, and collaborating with other team members under guidance. Exact duties and requirements can vary by company, but L3 roles generally serve as a foundation for further professional growth.

What skills and qualifications are needed to thrive as an L3?

To thrive as a Level 3 IT Support Technician, you need advanced troubleshooting skills, in-depth knowledge of operating systems and networks, and usually industry certifications like CompTIA, Microsoft, or Cisco credentials. Familiarity with ticketing systems, remote management tools, and enterprise-level hardware and software is typically required. Strong problem-solving abilities, effective communication, and the ability to remain calm under pressure are standout soft skills in this role. These competencies are crucial for resolving complex technical issues efficiently and ensuring minimal disruption to business operations.

What are common challenges faced by L3 support engineers, and how can they manage them?

L3 support engineers often handle the most complex and unresolved technical issues that have been escalated from lower support tiers. A common challenge is diagnosing problems that do not have straightforward solutions, frequently requiring in-depth analysis and collaboration with development teams. Effective management of these situations involves strong troubleshooting skills, clear communication with stakeholders, and maintaining detailed documentation. Building strong relationships with other technical teams and staying updated on product changes are also crucial for success in this role.

What is the difference between L3 vs Network Technician?

AspectL3Network Technician
Required CertificationsCCNA, CompTIA Network+CCNA, CompTIA Network+
Work EnvironmentData centers, enterprise networksOffice, on-site client locations
Employer & Industry UsageIT service providers, large corporationsTelecom, IT support companies

Both L3 and Network Technicians often hold similar certifications and work in network environments. L3 roles typically involve advanced troubleshooting, network design, and configuration, often within larger organizations or data centers. Network Technicians focus on installation, maintenance, and basic troubleshooting. While their skills overlap, L3 positions usually require more experience and deeper technical knowledge, making them suitable for more complex network tasks.

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What states have the most L3 jobs?

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L3 jobs near you
Infographic showing various L3 job openings in the United States as of September 2026, with employment types broken down into 88% Full Time, 1% Part Time, 10% Contract, and 1% Nights. Highlights an 90% Physical, 4% Hybrid, and 6% Remote job distribution.

L3 Network Engineer

Lake Saint Louis, MO • On-site

Noblesoft Technologies
Software Development • 51 - 200 employees
Learn more about Noblesoft Technologiesexternal

Contractor

Re-posted 21 days ago

Job description

Role:  L3 Network Engineer
Location: -  St. Louis, MO

Job description:

  • Should have good communication and analytical skills.
  • 10-12 years of experience in relevant NW field is required as candidate will be working on L3 level. new builds, projects as n when required.
  • Should be good in Leaf n spine architecture preferably HP/Aruba devices n Aruba central.
  • should be technically good in routing/switching. - BGP/OSP/EIGRP.
  • Should have knowledge of firewalls and troubleshooting skills in both switching and routing.
  • Should have worked on cisco wifi technology (WLC's 8540/VM-9800 WLC's)
  • Should have worked with Cisco DNA for wifi (APs/WLCs/Switches) network device provisioning/implementation/manage using DNA.
  • Should have worked on detailed level the Cisco DNA Center Assurance system architecture, functional components, features, Licensing generation of DNA on AP's/WLC's and data-processing concepts.
  • Deploy and configure Cisco DNA Center to use Assurance features for monitoring and troubleshooting network devices, clients, and application - for APs/WLC
  • Knowledge on Cisco DNA Center Assurance analyzes the streaming telemetry and collected data, correlates the data, performs root cause analysis, and displays detected issues, insights, and trends.
  • Aruba Central with HP/Aruba switches (2920/2930/6200f/9300xx/ Aruba wifi):
  • Should have worked on HP switches hands on standalone n stacking.
  • Should have worked on Aruba central for fully managing/implementation of HP switches including device onboarding, groups/sites/label creations, switch configuration via central, IOS upgrade/provisioning/UI groups/TG groups, etc and general administration/maintenance. 
  • Should have good knowledge in Aruba central devices monitoring and troubleshooting skills.
  • Should have worked on Aruba wifi using Aruba central.