Software Engineer

CACI International Inc; Aurora (CO); On-site; USD 69,000 - 142,000; Full time

Job summary

CACI International Inc. is seeking a Software Engineer in Aurora, CO, to grow an engineering career dedicated to space-domain software systems.

We value developers with 3+ years of hands-on experience who can own features end-to-end, write robust tests, review code, and work with RESTful APIs, React, and cloud platforms like AWS/Azure. This role emphasizes collaboration, learning, and impact on mission-critical software.

Qualifications

• Active TS/SCI security clearance
• 3+ years of hands-on software engineering experience
• Proficient in Python and JavaScript/TypeScript
• Experience with RESTful APIs and web development
• Familiarity with Git, Agile/Scrum
• Experience with cloud platforms (AWS/Azure) and microservices

Responsibilities

• Deliver end-to-end features with increasing independence
• Write quality, production-ready code and tests
• Mentor and assist junior team members
• Contribute to modern development practices (CI/CD, tests)
• Collaborate with product managers and designers to clarify requirements
• Grow skills by exploring new technologies and patterns

Skills

Python

JavaScript/TypeScript

Git

Agile/Scrum

RESTful APIs

Cloud Platforms

Team Collaboration

Education

Bachelor’s degree in Computer Science or related field

Equivalent education/experience

Tools

React

FastAPI

Docker

Kubernetes

AWS

Azure

Job description

Job Title: Software Engineer

Job Category: Engineering

Time Type: Full time

Minimum Clearance Required to Start: TS/SCI

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Continental US

Anticipated Posting End: 12/31/2026

The Opportunity

Grow your software engineering career with meaningful impact as a Software Engineer working in the space domain!

We're looking for capable, motivated developers with 3+ years of experience who are ready to take on more independence and grow their technical skills. As a Software Engineer, you'll work on mission-critical space system software, delivering features with increasing autonomy while continuing to develop your expertise alongside senior engineers.

You will implement well-architected solutions, collaborate across teams to deliver features, and contribute to our engineering culture. You're past the "learning the basics" stage—now it's about deepening your skills, handling more complex problems, and starting to help others grow.

You will be responsible for implementing features end-to-end, writing robust tests, participating in code reviews, and troubleshooting system issues. Solid experience with modern development practices, APIs, and cloud platforms is important.

If you're passionate about technology, ready to grow beyond junior-level work, and excited to make an impact on space mission systems, we would love to hear from you!

What Makes This Role Exciting

• Deliver features independently - take ownership of well-scoped features from implementation through deployment
• Expand your expertise - work with modern technologies (Python, React, AWS/Azure, Kubernetes) with increasing complexity
• Collaborate and learn - work alongside senior and staff engineers who will help you level up your skills
• Space domain impact - build software that directly supports critical space missions

If you're ready to take the next step in your career, build increasingly complex software, and contribute to systems that matter, let's talk!

Responsibilities

• Deliver Features with Increasing Independence
  • Implement full-stack features with clear requirements and minimal day-to-day guidance
  • Break down medium-sized tasks into implementable steps
  • Drive your assigned features through code review, testing, and deployment with support from senior team members
  • Start recognizing and raising potential issues or edge cases during implementation
• Write Quality, Production-Ready Code
  • Develop clean, maintainable code following team standards and patterns
  • Write comprehensive unit and integration tests for your code
  • Participate actively in code reviews, both giving and receiving constructive feedback
  • Debug and fix issues in your own code and occasionally in areas of the codebase you're less familiar with
• Support Junior Team Members
  • Answer questions and pair program with junior engineers when they need help
  • Share knowledge you've gained through documentation and informal mentoring
  • Review code from junior developers and provide helpful feedback
  • Help new team members onboard by sharing what you've learned
• Contribute to Modern Development Practices
  • Work with RESTful APIs and scalable microservices under the guidance of senior engineers, moving away from monolithic structures toward event-driven, serverless solution
  • Deploy and troubleshoot applications on cloud platforms (AWS or Azure)
  • Participate in Agile ceremonies and contribute meaningfully to sprint planning and retrospectives
  • Use CI/CD pipelines and understand how to troubleshoot common deployment issues
• Collaborate Across the Team
  • Work with product managers and designers to clarify requirements and understand user needs
  • Communicate progress, blockers, and technical challenges to your team
  • Participate in technical discussions, asking good questions and contributing ideas
  • Document your work so others can understand and maintain your code
• Continue Growing Your Skills
  • Learn new technologies and patterns relevant to your team's work
  • Identify opportunities to improve code quality and performance in your area
  • Suggest process improvements based on your experience
  • Stay curious and proactive about expanding your technical knowledge

Qualifications

• Security Clearance: Must possess an active TS/SCI security clearance
• Education: Bachelor’s degree in computer science or related field (or equivalent combination of education and experience)
• Professional Development Experience: 3+ years of hands‑on professional software engineering experience developing, testing, and deploying software in a professional environment
• Programming Proficiency: Solid skills in Python, JavaScript/TypeScript, with the ability to write clean, testable code
• Modern Development Practices: Experience with version control (Git), code reviews, and working in Agile/Scrum teams
• API & Web Development: Experience building or working with RESTful APIs and web applications, utilizing technologies such as REACT and FastAPI
• Collaboration & Communication: Ability to work effectively on a team, communicate technical concepts clearly, and collaborate with cross-functional partners

Desired

• Hands‑on experience deploying applications to AWS, Azure, or GCP
• Experience with Spring Boot, React, or similar modern frameworks in production
• Familiarity with containerization technologies (Docker, Kubernetes)
• Experience with both relational (PostgreSQL, MySQL) and NoSQL databases
• Understanding of CI/CD concepts and tools (Jenkins, GitLab CI, GitHub Actions)
• Experience working with microservices architectures
• Exposure to automated testing frameworks and practices
• Previous experience in aerospace, defense, or other regulated industries

What You Can Expect

A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high‑performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.

Pay Range

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities.

Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as;

• healthcare
• wellness
• financial
• retirement
• family support
• continuing education
• time off benefits

Since this position can be worked in more than one location, the range shown is the national average for the position.

The Proposed Salary Range For This Position Is

$69,100-$141,500

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.