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L3 Engineer Jobs in Silver Spring, MD (NOW HIRING)

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Python Developer L3

Fairfax, VA · On-site

$49.75 - $68.75/hr

Python Developer L3 FTE only, No C2C Location: 4 days/week onsite in Merrifield, VA - Mosaic District We are growing!! ASCENDING Inc, has doubled its revenue for the 3rd year in a row and our main ...

ASCENDING LLC

Python Developer L3

Fairfax, VA · On-site

$49.75 - $68.75/hr

Python Developer L3 FTE only, No C2C Location: 4 days/week onsite in Merrifield, VA - Mosaic District We are growing!! ASCENDING Inc, has doubled its revenue for the 3rd year in a row and our main ...

Inovalon

Software Development Engineer L3

Bowie, MD · On-site +1

$126K - $136K/yr

Software Development Engineer L3 for Multiple Positions Salary: $126,090 - $136,090/year Location: 4321 Collington Road (and Other U.S. Locations), Bowie, MD 20716 Summary of Duties: Develop and ...

Inovalon

Software Development Engineer L3

Bowie, MD · On-site

$126K - $136K/yr

Software Development Engineer L3 for Multiple Positions Salary: $126,090 - $136,090/year Location: 4321 Collington Road (and Other U.S. Locations), Bowie, MD 20716 Summary of Duties: Develop and ...

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All JobsL3 Engineer JobsL3 Engineer Jobs in Silver Spring, MD

L3 Engineer information

See Silver Spring, MD salary details

$40.3K

$105.2K

$142.1K

How much do l3 engineer jobs pay per year?

As of Jun 9, 2026, the average yearly pay for l3 engineer in Silver Spring, MD is $105,189.00, according to ZipRecruiter salary data. Most workers in this role earn between $86,800.00 and $120,400.00 per year, depending on experience, location, and employer.

What are L3 Engineers?

L3 Engineers, or Level 3 Engineers, are highly skilled technical professionals who provide expert support for complex IT systems and infrastructure. They are the final escalation point for technical issues that cannot be resolved by Level 1 (L1) or Level 2 (L2) support teams. L3 Engineers typically handle advanced troubleshooting, root cause analysis, and the implementation of solutions for critical problems. They may also be involved in designing, configuring, and maintaining systems, ensuring reliability and performance. Their expertise is crucial for resolving high-impact incidents and preventing future issues.

What are the key skills and qualifications needed to thrive as an L3 Engineer, and why are they important?

To thrive as an L3 Engineer, you need advanced expertise in troubleshooting, system administration, and deep technical knowledge of network and server infrastructure, often backed by a relevant degree and certifications like CCNP or MCSE. Familiarity with enterprise monitoring tools, ticketing systems, virtualization platforms, and scripting languages is typically required. Strong analytical thinking, effective communication, and the ability to work under pressure are valuable soft skills for this role. These competencies ensure timely and effective resolution of complex issues, minimizing downtime and maintaining seamless IT operations.

What is the difference between L3 Engineer vs Network Engineer?

AspectL3 EngineerNetwork Engineer
CertificationsCCNA, CCNP, CompTIA Network+CCNA, CCNP, CompTIA Network+
Work EnvironmentData centers, enterprise networks, telecomsCorporate offices, data centers, service providers
ResponsibilitiesNetwork troubleshooting, configuration, supportDesign, implement, maintain network infrastructure
Industry UsageIT, telecommunications, enterpriseIT, telecommunications, service providers

Both L3 Engineers and Network Engineers often hold similar certifications and work in comparable environments. While L3 Engineers focus on advanced troubleshooting and support within IT infrastructure, Network Engineers typically design and implement network systems. The roles overlap in skills and industry usage, but L3 Engineers tend to handle escalated issues, whereas Network Engineers focus on network planning and deployment.

What types of technical issues or projects does an L3 Engineer typically handle compared to L1 and L2 support roles?

L3 Engineers are responsible for resolving the most complex technical issues that cannot be addressed by L1 (first-line) or L2 (second-line) support teams. They often work on advanced troubleshooting, root cause analysis, and implementing permanent fixes for recurring problems. Additionally, L3 Engineers may lead critical infrastructure projects, develop automation scripts, and collaborate closely with development or architecture teams to improve system reliability. Their role often involves a mix of incident management, proactive system enhancements, and knowledge sharing with junior engineers.
What are popular job titles related to L3 Engineer jobs in Silver Spring, MD? For L3 Engineer jobs in Silver Spring, MD, the most frequently searched job titles are:
What job categories do people searching L3 Engineer jobs in Silver Spring, MD look for? The top searched job categories for L3 Engineer jobs in Silver Spring, MD are:
L3 Engineer jobs near you

Mainframe Infra Engineer (z/OS) - Only W2

Saransh Inc

Mclean, VA • On-site

$49.50 - $63.75/hr

Contractor

Posted 12 days ago

Job description

Role: Mainframe Infra Engineer (Mainframe z/OS Technical Lead / L3 Engineer)
Location: McLean, VA (Hybrid)
Job Type: W2 Contract
 
Skill Matrix:
Name
Required
IMS
Yes
DB2
Yes
JCL
Yes
Cobol
Yes
Mainframe CICS
Yes
CICS
Yes
z/OS
Yes
 
Experience: Overall 15 years
Job Description:
We are seeking a senior Mainframe Z/OS Technical Lead to act as the client-side SME overseeing outsourced mainframe services and guiding a small internal team.
 
Responsibilities:
• Provide technical oversight of vendor-managed mainframe operations
• Review daily operations, incidents, RCA, changes, and releases
• Validate vendor recommendations and ensure adherence to SLAs and ITIL processes
• Act as escalation point for complex mainframe issues
• Provide expert guidance on z/OS, Sysplex, WLM, JES, and RACF
• Oversee IMS (DB/DC), DB2 for z/OS, and CICS environments
• Review system performance, capacity, availability, and stability
• Recommend improvements for performance, automation, and cost optimization
• Identify risks, technical debt, and modernization opportunities
• Review DR, BCP, backup, and recovery strategies
• Provide architectural input for upgrades and future-state planning
• Communicate technical insights clearly to leadership and stakeholders
 
Required Skills:
• 10+ years of strong hands-on mainframe experience.
• Expert knowledge of z/OS, IMS, DB2, CICS
• Strong understanding of JCL, COBOL, and batch processing
• Experience with vendor-managed or outsourced environments
• Ability to influence, challenge, and guide vendors constructively
 
Preferred:
• Mainframe modernization or optimization experience
• ITIL process exposure