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Software Developer / Software Engineer

Location: Aurora, CO or Fairfax/Linthicum, VA

Company: TEKsystems

Clearance Required: Active Top Secret (SCI eligibility required; CI Poly obtainable)

Overview

TEKsystems is seeking Software Developers and Senior-Level Software Engineers to support a high-impact Defense contract. These roles involve designing, developing, and integrating software solutions in a secure environment, working across front-end, back-end, and full-stack systems. Ideal candidates have strong Java experience and a background in hardware/software integration.

Key Responsibilities

• Design, develop, test, and troubleshoot Java-based applications
• Work in Agile development teams across the full software lifecycle
• Build and integrate software with hardware systems and distributed services
• Support system integration, testing, deployment, and automation efforts
• Collaborate using modern DevOps and version control tools

Required Qualifications

• Bachelor’s degree in a science/technical field or equivalent experience
• Experience level varies by role (Mid, Senior, Principal, Sr. Principal, Staff)
• Strong experience in Java and object-oriented design
• Experience as a front-end, back-end, or full-stack developer
• Experience working in Agile environments
• Proficiency with version control systems
• Active Top Secret clearance with ability to obtain SCI and CI Poly

Preferred / Nice-to-Have Skills

• Additional languages: C++, C, Python, JavaScript
• Microservices and distributed systems experience
• Hardware/Software integration or satellite/ground system exposure
• Linux (Red Hat), virtualized environments, and AWS
• Docker & Kubernetes (containerization)
• DevOps or Site Reliability Engineering background
• Atlassian tools (Jira, Confluence, Bitbucket)
• Experience leading teams (for Senior-level roles)

Work Environment

• On-site work in a SCIF
• Highly secure, mission-focused engineering environment
• Opportunity to work with advanced technologies and programs requiring elevated clearances

Why TEKsystems

• Support cutting-edge Defense technology initiatives
• Long-term, stable work within cleared environments
• Opportunity for continued clearance and technical growth

We reserve the right to pay above or below the posted wage based on factors unrelated to sex, race, or any other protected classification.

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. This temporary role may be eligible for the following:

• Medical, dental & vision
• 401(k)/Roth
• Insurance (Basic/Supplemental Life & AD&D)
• Short and long-term disability
• Health & Dependent Care Spending Accounts (HSA & DCFSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

Job Type & Location

This is a Contract position based out of Aurora, CO.

Pay and Benefits

The pay range for this position is $ - $

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)

Workplace Type

This is a fully onsite position in Aurora,CO.

Application Deadline

This position is anticipated to close on May 5, 2026.

h4>About TEKsystems:

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems and TEKsystems Global Services

We’re a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We’re a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We’re strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We’re building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.