Defense Software Engineer Jobs in Florida (NOW HIRING)

TEKsystems is seeking a highly experienced Software Engineer to support the development of advanced defense technologies related to guidance, navigation, control systems, aircraft, and munitions. This is a hands-on engineering role within a fast-paced, collaborative environment where engineers contribute directly to critical national security initiatives while working across multiple programs.

• Develop and maintain software solutions using C++, C#, Python, and Java
• Support multiple concurrent engineering efforts and development projects
• Design, build, and test real-time software systems
• Participate in rapid prototyping and fast-paced development cycles
• Collaborate with cross-functional engineering teams to support system integration
• Utilize Azure DevOps for CI/CD, software delivery, and project tracking
• Balance technical leadership responsibilities with hands-on development work
• Troubleshoot, optimize, and improve mission-critical software applications
• Contribute to innovative solutions supporting guidance, navigation, and control technologies

• U.S. Citizenship and ability to obtain/maintain a security clearance
• 10-15 years of software engineering experience
• Strong proficiency in:
  • C++
  • C#
  • Python
  • Java
• Experience with:
  • Linux operating systems
  • Real-Time Operating Systems (RTOS)
  • VxWorks
• Background supporting defense-related software development
• Experience with weapons systems, munitions, navigation, GPS, or similar technologies
• Ability to thrive in a lean, fast-moving engineering environment
• Willingness to work onsite Monday through Friday

• Experience with weapons systems or direct munition technologies
• Thin-client architecture experience
• Background in agile organizations focused on rapid prototyping
• Previous experience supporting complex real-time systems and mission-critical applications
• Technical leadership or team lead experience

• Opportunity to work on impactful defense technology programs
• Collaborative, family-oriented culture with minimal bureaucracy
• Direct influence on product development and innovation
• Stable and growing organization with a strong history of success
• Casual work environment with a focus on productivity and teamwork
• Exposure to a wide variety of challenging engineering projects

Due to continued business growth and increased project demand, TEKsystems is seeking an experienced Software Engineer who enjoys solving complex technical challenges, working across multiple programs, and making a direct impact on next-generation defense technologies. If you have a passion for real-time systems, defense software, and hands-on engineering, we encourage you to apply.

This is a Contract to Hire position based out of Niceville, FL.

The pay range for this position is $57.69 - $76.92/hr.

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)

This is a fully onsite position in Niceville,FL.

This position is anticipated to close on Aug 6, 2026.

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.

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 TEKsystems.com.

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.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.