Principal Software Engineer

Company Overview

Founded in 2004 with locations in Atlanta, GA and Fort Worth, TX, Thompson Software Solutions LLC. team understands what is required to develop, integrate, test, and deploy software with a safety‑critical pedigree while meeting the challenges of modernization and digital transformation. As a defense‑focused software company of proven and dedicated employees, we take pride in our ability to react quickly and produce quality solutions to difficult technical challenges.

We work with partners to find the right path to meet operational needs while future‑proofing systems with portability and sustainment considerations to ensure next‑generation success.

Location: Huntsville, AL

Salary: $155,000 to $175,000

Thompson Software Solutions is seeking a Principal SW Engineer who is ready to work with a talented team to provide innovative solutions for tomorrow’s problems. This position requires a software engineer to use a wide application of technical principles, theories, and concepts in the software field to develop, integrate, and test software products. The successful candidate will be a member of a high‑performing multi‑site team and must be self‑motivated with a strong work ethic, time‑management, and interpersonal skills.

In this role, you will work independently at times on projects, at other times will be in a collaborative team environment with other software engineers, as well as other program development and deployment teams. Selected applicants will be subjected to a government security investigation and must meet eligibility requirements for access to classified information and must maintain eligibility for continued access to classified information throughout their employment as required by the job.

• Bachelor's degree in STEM discipline
• 8+ years of C/C++ experience
• Experience with Embedded Software development
• Experience with I&T integration and test
• Experience with Full Software Development Cycle
• Experience with (FSW) Flight software engineering
• Proficient with Linux and Windows development environments
• Ability to professionally communicate project status and collaborate on technical solutions with clients and peers
• Clearance eligibility required
• Ability to work onsite 100%
• Ability to travel 25%

• Proficient with Atlassian Tools (Confluence, JIRA, Bitbucket, etc.)
• Proficient in Python development
• Familiarity with Model‑Based System Engineering (MBSE) concepts and tools (Cameo, AADL)
• Experience with Digital Simulation Development and integration
• Experience with safety‑critical software development and practices (DO‑178C)
• Experience with Navigation, Guidance and Control Implementation
• Experience with Signal Processing Implementation
• Experience developing Embedded Flight Software
• Experience communicating and documenting complex technical designs
• Ability to work in a collaborative and team‑based environment
• Excellent written and verbal communication and presentation skills

• Low‑cost Medical / Dental / Vision coverage options
• 401K with generous employer match
• Responsible Paid Time Off + 11 Paid Holidays
• Remote work opportunities based on role
• Employee Assistance Program (EAP)
• Career growth and professional development opportunities

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.