Senior Principal Software Architect (Onsite)

RTX • Richardson, TX

7d • $132,400 - $251,600 • Onsite

About The Position

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.

Requirements

• Extensive experience with real-time operating systems (RTOS), including development, debugging, and performance optimization of embedded software applications
• 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
• Active and transferable Secret U.S. government issued security clearance is required prior to start date
• 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

Nice To Haves

• 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
• Ability to read electrical schematics and understand system‑level hardware interfaces
• Expertise in Programmable Logic Controllers (PLCs) that support C++-based application frameworks

Responsibilities

• Work collaboratively both within the software team, as well as with systems and hardware engineers to design and develop our solution 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
• Develop and integrate multi-threaded embedded software using C and C++ within a Real Time Operating System (RTOS)
• 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

Benefits

• Medical, dental, and vision insurance
• Three weeks of vacation for newly hired employees
• Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
• Tuition reimbursement program
• Student Loan Repayment Program
• Life insurance and disability coverage
• Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection
• Birth, adoption, parental leave benefits
• Ovia Health, fertility, and family planning
• Adoption Assistance
• Autism Benefit
• Employee Assistance Plan, including up to 10 free counseling sessions
• Healthy You Incentives, wellness rewards program
• Doctor on Demand, virtual doctor visits
• Bright Horizons, child and elder care services
• Teladoc Medical Experts, second opinion program
• Eligible for relocation assistance
• Sign On Bonus Eligible
• Annual short-term and/or long-term incentive compensation programs

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: High school or GED