Sr. Software Engineer

Job Title: Sr. Software Engineer Location: Sunnyvale, CA. Salary Range: $165,000 - $250,000 + Bonus Eligible Start Date: January 2026 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. Description Thompson Software Solutions is seeking a senior-level Sr Software 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. Who we are: Thompson Software Solutions LLC. is a subsidiary of Lynx. Lynx delivers modular, open standards-based software solutions that redefine the economics of developing, deploying, and maintaining high assurance, mission critical edge platforms. These secure edge computing solutions are designed to drive innovation and operational excellence in today's most demanding environments. From advancing aerospace and defense capabilities to transforming commercial and industrial systems, Lynx collaborates across a wide range of industries, including automotive, medical, and critical infrastructure, to deliver tailored, high assurance solutions aligned with specific mission and operational requirements. Basic Requirements Bachelor's degree in STEM discipline 5+ years of C/C++ software Development experience Experience with Digital Simulation Development and integration Experience with Embedded Software Development Experience with I&T integration and testing. Experience with GITLAB. Experience with Full Software Development Cycle Experience with (FSW) Flight software engineering Proficient with Linux and Windows development environments Experience with compilers, debuggers, static analysis tools, and dynamics analysis tool Ability to professionally communicate project status and collaborate on technical solutions with clients and peers Clearance eligibility required Ability to work onsite 100% Perform additional job duties as assigned. Preferred / Additional Skills 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 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 Sound Exciting? Get in touch today We have very robust benefits including: 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.