Software Engineer – Python Application Development
Confirmed on the employer's own hiring board on Oct 15, 2026. First seen by Alion on Oct 13, 2026. Quest Defense scores B on the Alion truth index.
Shape the future of innovation as we tackle cutting-edge projects that make a difference. We’re not just in the business of engineering-we’re building a brighter future. Driven by creativity and a culture of excellence, we believe in the power of engineering to solve today’s challenges and create opportunities for tomorrow. What we do matters.
Quest Defense is seeking a Software Engineer to support the development of engineering software applications in a customer-facing environment. This role will be part of an existing customer software team that develops, enhances, and maintains engineering applications and tools.
This position primarily focuses on Python software development and writing original application code. The ideal candidate will have a solid software development foundation and strong Python skills. Deep front-end web development or database expertise is not required.
This is a hybrid position. The selected candidate will work both remotely and at the customer site, with increased onsite presence expected during the initial onboarding and integration period, anticipated to be approximately 2-4 weeks. Ongoing onsite presence will be based on project and customer needs.
Key Responsibilities
- Design, develop, test, and maintain software applications using Python
- Develop original application code to meet engineering and customer requirements
- Work within an existing customer software development team to implement new capabilities and enhancements
- Translate engineering and user requirements into functional software solutions
- Debug, troubleshoot, and resolve software issues
- Participate in code reviews, testing, configuration management, and software release activities
- Follow established software development practices and customer processes
- Collaborate with engineers, software developers, and customer stakeholders
- Develop maintainable, documented, and reusable code
- Support application integration and testing as required
Required Qualifications
- Bachelor’s degree in computer science, Software Engineering, Computer Engineering, or a related technical discipline
- Experience developing software applications using Python
- Understanding of software development principles and the software development lifecycle
- Experience writing, debugging, testing, and maintaining original application code
- Experience with source/version control tools such as Git
- Strong problem-solving and troubleshooting skills
- Ability to work effectively as part of a collaborative software development team
- Strong written and verbal communication skills
- US Person status
Preferred Qualifications
- Experience developing engineering or technical software applications
- Experience working in aerospace, defense, or other engineering environments
- Experience with Agile software development
- Familiarity with automated testing and software configuration management
- Experience with REST APIs, databases, or web-based applications
- Exposure to engineering analysis or Model-Based Systems Engineering environments
- Ability to obtain a U.S. Government security clearance
The QDSS Advantage:
At QDSS, our advantage is purpose-driven work, collaborative teams, and complex challenges that push boundaries and build lasting impact. You’ll grow your career while contributing to mission-critical programs that demand excellence and shape the future.
What You’ll Find Here
- Work That Matters - Next-generation, safety- and mission-critical projects where your contributions have real-world impact.
- Growth That’s Supported - Competitive compensation, employer-matched 401(k), certification assistance, and clear opportunities for advancement.
- A Culture That Works - A flexible, collaborative, and people-first environment where teamwork, innovation, and balance are valued.
Benefits Include
- Competitive pay, comprehensive medical/dental/life and disability coverage, 401(k) with employer match, professional development support, and a flexible, friendly workplace.
At Quest Defense Systems and Solutions, we don’t just build technology - we engineer the future. From next-generation aerospace solutions to cutting-edge defense systems, we tackle the toughest, mission-critical challenges that keep people safe and push the boundaries of innovation. This is where problem-solvers, innovators, and visionary thinkers come together to shape the future. With over 25 years of aerospace and defense engineering expertise, our commitment to delivering high-quality, transformative solutions sets us apart - not just as an industry leader, but as a driving force for impactful change. Together, we’re not just leading the industry - we’re revolutionizing it.
Quest Defense provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.
This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.