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Sr. Principal Software Engineer Security Clearance

Job in Aurora, Arapahoe County, Colorado, 80010, USA
Listing for: TEKsystems c/o Allegis Group
Full Time position
Listed on 2025-12-06
Job specializations:
  • Software Development
    Software Engineer, DevOps
Job Description & How to Apply Below
Position: Sr. Principal Software Engineer with Security Clearance
Location: Aurora
TEKsystems is seeking Software Developers/Engineers to support a Defense contract in Denver, Co.

Basic Qualifications:

• Experience as a front-end, back-end, or full-stack developer

• Experience developing on teams using Agile methodology, process, and tools

• Experience designing, developing, and troubleshooting in Java

• Experience using object oriented design

• Experience using version control software

• Must be able to obtain a Counterintelligence Polygraph (CI-Poly)

Preferred Qualifications:

It is preferred that a given candidate has some of the preferred qualification below. No expectation of all.

• Experience designing, developing, and troubleshooting in C++, C, Python, and/or Java Script

• Experience designing, developing, and troubleshooting distributed systems

• Experience designing, developing, and troubleshooting in virtualized environments (VMs, AWS Cloud Instances)

• Experience as a full-stack developer

• Experience with software development on Red Hat Enterprise Linux

• Experience with range of software development phases from research, to new development, and to operations

• Experience with Dockerization and Container Management (Dockers and Kubernetes)

• Experience with Atlassian tools (Jira, Confluence, Bitbucket)

• Experience with AWS Services

• Experience with ground command/control or ground processing systems (scheduling, tasking, antennas, hardware interfaces, data processing)

• Experience with software system integration, testing, and deployment, including but not limited to automation

• Experience with Dev Ops and/or Site Reliability Engineering

• Experience in leading software engineers in roles such as Scrum Master, Team Lead, Product Owner, or similar

• Current Counterintelligence Polygraph (CI-Poly) completed within the last 5 years Company Benefits:
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:

• Medical, dental & vision

• Critical Illness, Accident, and Hospital

• 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available

• Life Insurance (Voluntary Life & AD&D for the employee and dependents)

• Short and long-term disability

• Health Spending Account (HSA)

• Transportation benefits

Employee Assistance Program

• Time Off/Leave (PTO, Vacation or Sick Leave) Apply or email directly to for more info!
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