Principal HW/SW Integration Engineer Lead
At a glance
Senior Software Engineering role at Lynx Software Technologies. Huntsville · full-time · $166,400–$208,000 base.
techroles summary, based on the employer's posting.
What you'll do
- Set up vehicle-wide data architecture and keep internal messages and data paths defined across the missile
- Check that internal and external interfaces remain compatible, including messages exchanged with the Ground Weapons System
- Coordinate with flight software, FPGA and hardware teams to close integration gaps and resolve technical issues
- Carry HW/SW integration problems from design through testing and early flight, updating architecture as hardware tests reveal needs
- Help develop sequence diagrams, review interface documents, and maintain configuration, operating-concept and parameter definitions
What you bring
- You have at least eight years in systems engineering, focused on system-level development, testing and integration
- You hold a STEM bachelor's degree or bring related experience, with software skills and a strong grasp of systems and hardware
- You have worked with ICDs and IDDs to define requirements, and have experience integrating and testing systems
- You hold an active Secret clearance and can maintain eligibility for classified access
Who this fits
This is a senior technical lead role for someone who can work independently and coordinate with software, FPGA, hardware and architecture teams. It requires full-time on-site work in Huntsville and travel of up to twenty-five percent.
From the employer
Job Title: Principal HW/SW Integration Engineer Lead
Location: Onsite – US Huntsville, AL
Salary Range: $166,400 - $208,000, plus bonus eligible
This position requires full time onsite in Huntsville, Alabama.
Company Overview
Founded in 2004 with locations in Atlanta, GA, Fort Worth, TX, Denver, CO, & Huntsville, AL, Thompson Software Solutions (TSS) is a mission-driven aerospace and defense software and systems engineering company supporting the U.S. military, defense primes, and commercial space partners. We specialize in the development, integration, test, and deployment of safety & mission-critical software systems that power next-generation aircraft, defense platforms, and space technologies. Our team understands what it takes to modernize complex embedded systems while maintaining the rigor, compliance, and reliability required for mission and safety-critical environments.
As a defense-focused company of highly skilled and dedicated engineers, we take pride in solving complex technical challenges that directly impact national security and operational readiness. We partner closely with customers across the military aviation and space domains to deliver resilient, future-ready solutions with portability, sustainability, and long-term mission success in mind.
Description
Thompson Software Solutions is seeking a Principal Software Engineer to support the development of embedded flight software capabilities for an advanced missile platform. This role offers the opportunity to lead the design and integration of mission-critical software operating in high-performance, real-time environments where precision, reliability, and deterministic execution are paramount.
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 subject to a government security investigation and must meet eligibility requirements for access to classified information. Continued eligibility for access to classified information is required throughout employment, as dictated by program needs.
Main Responsibilities:
- Implement internal data architecture and development activities at the holistic vehicle level
- Ensure end-to-end data and interface compatibility throughout the system inclusive of external interfaces
- Define and maintain internal messages and data flow through the missile
- Supports external message definition with the Ground Weapons System (GWS).
- Collaborate with FSW, FPGA, and HW teams to drive closure of data architecture and HW/SW integration items
- Support sequence diagram development with architecture team
- Collaborate with FSW, FPGA, and HW teams develop IEIDDs, resolve TBxs, and address system-level gaps
- Assist with any data architecture updates found during hardware testing phases
- Drive closure of HW/SW integration issues from the design perspective through testing and initial flight as they are identified by the team
- Support relevant interface documentation reviews including internal, SDRL, and CDRL
- Support HW/SW configuration definition, conops, and parameter management
Basic Requirements:
- Bachelor's degree in STEM discipline or related experience.
- 8+ years of experience in systems engineering, with a strong focus on systems-level development testing and integration.
- SW background with strong systems understanding and knowledge of systems-level hardware
- Ability and desire to work in fluctuating systems engineering environment
- Software background to understand software build needs and requirements
- Experience with ICDs and IDDs to define system requirements
- Strong analytical and problem-solving skills with a track record of delivering high-impact solutions.
- Experience with I&T integration and test.
- Ability to professionally communicate project status and collaborate on technical solutions with clients and peers
- Active Secret Clearance Required
- Ability to work onsite 100%
- Ability to Travel up to 25%
Preferred / Additional Skills
- Proficient with Atlassian Tools (Confluence, JIRA, Bitbucket, etc.)
- Experience leading technical projects or mentoring junior engineers.
- Systems-level experience with hardware and interface implementation (e.g., RS422, SpaceWire, etc.)
- Experience developing and executing system-level and HIL test procedures
- Strong understanding of requirements verification and validation processes
- Experience troubleshooting integrated HW/SW systems in a lab environment
- 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 + Paid Holidays
- Remote work opportunities based on role
- Employee Assistance Program (EAP)
- Career growth and professional development opportunities
Lynx is an Equal Opportunity Employer. We provide equal employment opportunities to all qualified persons without regard to race, gender, color, disability, national origin, age, religion, sexual orientation, veteran status, gender identity and/or expression, or other characteristics or status protected by law.
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