Principal Cloud Systems Engineer

Leidos is seeking an experienced Principal Cloud Systems Engineer to join our Defense Enclave Services (DES) team, who will support an extensive digital modernization program critical to Defense Information Systems Agency (DISA) and Department of Defense (DoD) Fourth Estate Agencies. A Systems Engineer with a focus on Distributed Systems and understands how cloud infrastructure is built and maintained.

The position will support multiple engineering projects modernizing the DoD Environment, including the migration of applications and services from on-premise to the cloud for zero-trust network initiatives.  These engineering efforts will include design, deployment, test, and migration of the network solutions the candidate develops.

PROGRAM Link: www.leidos.com/des

JOB LOCATION: Remote

CLEARANCE REQUIREMENT: Must possess an Active SECRET or above DoD clearance to be considered. (US Citizenship required)

Primary Responsibilities

• Leverage experience in Systems Engineering and Architecture to design zero-trust network solutions for a hybrid on-premise and Azure enclave

• Demonstrate an understanding of system Virtualization and Design by ensuring network modernization efforts properly address security requirements and can be implemented without affecting operations.

• Support Cloud Deployment of modernized network services

• Develop modern and secure network solutions by demonstrating experience with Virtual switches, VPC’s, and Virtual Firewalls

• Provide inputs to the design of the enterprise’s cloud and mission architecture

• Evaluate and support application architectures across platforms to ensure alignment to cloud and application modernization strategies, capabilities and requirements

• Continually identify opportunities for improvement, including innovations aimed at improving the user experience, improving efficiencies, and lowering sustainment costs

• Enforce security best practices and guidelines, leveraging knowledge of security policies, network security, and data security

Basic Qualifications

• Bachelor’s degree or equivalent experience and 12+ years of prior relevant experience

• Expertise designing, deploying, and operating solutions built on Azure, AWS or GCP

• Experience with Virtual switches, VPC’s, and Virtual Firewalls

• Experience with Identity Access Management (IDAM), AzureAD, and CyberArk, Okta or other modern ICAM solutions.

• Understanding of Federal Government application, server, and network security requirements such as NIST, FedRAMP, and FISMA

• Ability to work effectively within a distributed technical team, aided by strong written and verbal communication skills

• Current IAT Level II (or higher) Certification such as Security + or CISSP

Preferred Qualifications

• Recognized cloud certification, such as Microsoft Azure Associate Administrator
• Familiarity with the Atlassian suite, including Jira and Confluence

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

November 2, 2026

Pay Range:

Pay Range $131,300.00 - $237,350.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.