Embedded Software Engineer II
Questdefensesystemssolutionsinc · Littleton, CO · Posted Jun 22, 2026
Apply on company site Track it in JobSkout
Join the elite team at QDSS, where our engineers are at the forefront of developing cutting-edge Aerospace, Defense, Space, and Medical Device products. Your work will make a real impact, contributing to the core of engineering solutions that drive technological advancements.
Quest Defense Systems and Solutions (QDSS) is seeking Embedded Software Engineers to develop real-time embedded software for mission- and safety-critical aerospace and defense platforms. This role supports the design, implementation, integration, and verification of embedded software used in avionics systems, mission computers, and embedded control applications.
The engineer will participate across the full embedded software lifecycle, including requirements decomposition, software architecture and design, implementation, integration, and verification in a regulated development environment. This position requires close collaboration with systems, hardware, and verification engineers to deliver reliable software solutions for complex real-time systems.
Due to the nature of the project, all applicants must be U.S. Citizens and must have or be eligible to obtain and maintain an Active Secret Clearance.
Must be located or willing to relocate to Fort Worth, TX (Marietta, GA, or Littleton, CO will also be considered).
Key Responsibilities:
Embedded Software Development
Design, develop, test, and maintain embedded software using C, C++, and/or Ada.
Develop real-time software supporting avionics systems, mission computers, and embedded control systems.
Implement software interfacing with hardware devices, sensors, and communication buses.
Full Software Lifecycle Participation
Execute activities across the software lifecycle, including:
Requirements analysis and decomposition
High-level and low-level software design
Implementation and debugging
Integration testing and system testing on an RTOS platform
Software maintenance and defect resolution
Safety-Critical and Regulated Development
Develop software in accordance with regulated industry frameworks and development standards.
Support the generation of lifecycle artifacts supporting certification and compliance activities.
Verification Validation
Develop and execute requirements-based tests and integration tests.
Analyze test results, document, and resolve software defects.
Support technical reviews and verification activities.
Collaboration
Work closely with systems engineers, hardware engineers, and verification teams.
Participate in design reviews.
Support customer technical reviews and program milestones as required.
Required Qualifications:
Bachelor’s degree in Computer Engineering, Electrical Engineering, Computer Science, or related field.
3–7 years of real-time embedded software development experience on an Aerospace, Defense, or regulated industry program.
Experience with mission-critical software design, including the principles of requirements management and decomposition in a regulated environment.
Experience working within regulated development environments.
Experience developing in Agile Scrum environments, as well as programming within DevOps frameworks.
Applied knowledge of Jira and Bit Bucket or similar Git repository.
Applied knowledge of MIL-STD-1553 or ARINC 429, or experience with data bus development and messaging architectures.
Must be a U.S. Citizen.
Must have or be eligible to obtain and maintain a U.S. Secret Security Clearance.
Key Skills Competencies:
Embedded software design and implementation
Real-time software development in an Agile environment
Hardware/software integration
Requirements traceability and verification
Problem-solving within complex engineering environments
Preferred Qualifications:
Experience with standards such as DO-178B/C ARP4754A
Additional experience with:
Experience with an integrated development environment, including debugger tools, networking, embedded systems integration, requirements generation, and systems interface development, is highly desired.
Real-time operating systems (RTOS)
Requirements management tools (DOORS, JIRA/ Jama)
Static analysis and verification tools.
Experience with XML-based open standards, Common Software Baseline processes, and Agile processes and tools is highly desired.
Recent work experience with embedded architectures, single-board computers, and hardware and software-in-the-loop implementation and testing is a plus.
Experience in adoption and/or integration of emerging technologies (e.g., generative AI, automation platforms, digital assistants) into day-to-day operations for continuous improvement.
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-critic…