Trajectory Software Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: None Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * **The Opportunity:** CACI provides mission assurance and situational awareness services for the launches of U.S. Government spacecraft at Vandenberg and Cape Canaveral Space Force Bases. As part of the **Trajectory Software Team** in Santa Maria, CA, you will help develop and maintain simulation and analysis tools that directly support space launch missions. Your work enables Independent Verification & Validation (IV&V) of flight trajectories and real-time launch data displays for mission assurance. This position offers a hybrid work option, with the ability to work remotely up to four days per week and at least one day in-office in Santa Maria, CA. **Responsibilities:** + Apply sound software engineering practices throughout the system life cycle to support physics-based simulations, visualization tools, and launch support systems. + Develop and maintain a **high-fidelity trajectory simulation** for satellite launch vehicles written in **Fortran, C++, and JavaScript** . + Support ongoing efforts to **expand and modernize the C++ codebase** , implementing **high-performance architectures** and **software design patterns** that optimize simulation speed and maintainability. + Design, implement, and support **pre- and post-processing tools** in **MATLAB, C++, JavaScript, Perl, and Python** to assist with trajectory builds, analysis, and validation. + Apply a **test-focused development approach** , including **unit testing with Google Test (GTest)** and **automated regression testing** through **GitLab CI/CD pipelines** . + Collaborate with **IV&V analysts and mission support engineers** to investigate and resolve simulation discrepancies. + Interface with customers, suppliers, and technical teams to ensure software tools meet operational needs. + Participate in **software design and code reviews** and contribute to overall software architecture. + Maintain **automated documentation** using **Doxygen** and support project documentation in **Confluence** . + Plan, track, and manage development tasks using **Kanban** boards in **Jira** . **Qualifications:** _Required:_ + Must be a U.S. Citizen with the ability to obtain and maintain a **Secret security clearance** . + Bachelor’s degree in **Aerospace, Computer, or related Engineering** field, or equivalent experience. + Minimum **3 years of related experience** in simulation or scientific software development. + Understanding of **flight mechanics, dynamics, or trajectory analysis** principles. + Proficiency in one or more of the following languages: **Fortran, C++, MATLAB, Perl, Python, JavaScript** . + Experience using **Git** or similar version control systems. + Experience writing **software design or technical documentation** . _Desired:_ + Experience developing, troubleshooting, or analyzing **flight vehicle or trajectory simulations** . + Strong **math and physics foundation** (e.g., dynamics, optimization, probability). + Experience with **GitLab CI/CD pipelines** , **automated documentation tools (Doxygen)** , and **Agile collaboration platforms (Jira, Confluence)** . + Experience with **unit testing frameworks** such as **Google Test (GTest)** and **test-driven development practices** . + Experience integrating and using **external C++ libraries** such as Eigen, Boost, nlohmann/json, or Redis clients for high-performance computing and data handling. + Familiarity with **Kanban workflows** for software planning and delivery. - **________________________________________________________________________________________** **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. **Your potential is limitless.** So is ours. Learn more about CACI here. (https://careers.caci.com/global/en/life-at-caci) **________________________________________________________________________________________** **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, and time off benefits. Learn more here (https://careers.caci.com/global/en/employee-benefits) . The proposed salary range for this position is: $76,000 - 155,700 USD _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._