Senior Principal Software Architect (Onsite)

Date Posted:

2025-07-21

Country:

United States of America

Location:

HTX36: Richardson, TX 3200 E Renner Rd , Richardson, TX, 75082-2402 USA

Position Role Type:

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

Active and transferable U.S. government issued security clearance is required prior to start date.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance​

Security Clearance:

DoD Clearance: Secret

Are you looking to make a meaningful, positive impact while advancing your career?  

Here at Collins Aerospace, we’re enhancing mission critical systems for our military to deter against current and future adversarial threats. The need for passionate engineers who want to make a difference is now! Our team develops strategic solutions to ensure Nuclear Command, Control, and Communications (NC3) function accurately, on-time, every time, and under the most extreme circumstances for our national defense.  

We have an opportunity for a Senior Principal Software Architect to join a cohort of 20+ talented software engineers in developing our Very Low Frequency (VLF) solution for the military. The government has requested a need for greater cyber security threat protection, software assurance, improvement in availability and reliability while harnessing the latest technologies for rapid development and deployment.

What You Will Do:  

• Work collaboratively both within the software team, as well as with systems and hardware engineers to design and develop our solution for aircraft operators to control and monitor mission critical VLF transmitters

• Define, evolve, and optimize software and simulation design across mission-critical embedded platforms

• Serve as technical lead for cross-functional development, driving software solutions to systems and hardware engineers while ensuring development team understands platform and hardware constraints

• Mentor and guide engineering teams in architectural best practices, modularity, code structure, and performance tradeoffs in real-time systems

• Identify areas for optimization and collaborate on architecture-level decisions along with other software Subject Matter Experts (SMEs) to meet system constraints

• Define software requirements and Unified Modeling Language (UML) design diagrams within a Model Based Systems Engineering (MBSE) tool

• Support integration and verification within our automated test framework (gtest, python, JSON)

• Enhance simulation elements to reflect new hardware capabilities

• Drive technical design and software development practices to meet stringent Security Technical Implementation Guides (STIGs)

• Support document updates to meet customer Contract Data Requirements List (CDRL)

• Provide insight on future scope, task assignments, and process improvements within our Agile cadence

What You Will Learn: 

• Full software development lifecycle within defense industry

• Agile development within a classified environment

• Integration and validation on a variety of hardware controller cards

• Best practices in secure software coding on embedded systems

• Opportunity to grow into Technical Lead or Product Owner

Qualifications You Must Have: 

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 10 years prior relevant experience or an Advanced Degree in a related field and minimum 7 years of experience

• Experience with real-time operating systems (RTOS), including development, debugging, and performance optimization of embedded software applications utilizing C/C++

• Experience with Model-Based Systems Engineering (MBSE), system decomposition, and interface control across disciplines

• Experience with software lifecycle processes, configuration control, and change management in high-integrity development environments

Qualifications We Prefer: 

• Experience with multithreading, memory management, and performance optimization in complex environments

• Experience in secure coding practices

• Experience with hardware-software integration and hardware-in-the-loop (HIL) testing

• Experience with development tool sets, including Jira, Git, Visual Studio Code, cmake

• Experience with Qt framework and development tools to generate C++ and QML code

• Experience with automated test frameworks, unit testing, and requirements traceability

• Experience in leadership rol