Defense Software Engineer Jobs in Pennsylvania (NOW HIRING)

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Fort Worth, TX, US

6 days ago Requisition ID: 1909

Infinity’s niche in the aerospace and defense industry is specialized solutions that help bridge the gap between space and ground. This is no small task, and we owe our success to our team who help us fulfill our mission; to match people with their legacies for betterment of the world. There is always a place at Infinity for a motivated, capable individual seeking a career to better the world. We prioritize supporting our team through exceptional benefits, work-life balance, and structured career development. At Infinity, WE ARE MORE – now, come be more with us!
*Please note, this position is contingent upon program award.*
Job Summary:

The Airborne Software Engineer is responsible for designing, developing, integrating, and testing software for airborne mission systems supporting DoD programs. This role focuses on C/C++ development, hardware/software integration, and test automation in secure, closed‑area environments. You will work closely with systems, hardware, and test engineers to ensure reliable, secure, and high-performance software on embedded and mission computers.

Key Responsibilities:

Software Development & Implementation:

• Design, develop, and maintain airborne software in C/C++ for mission, sensor, and avionics‑related functionality.
• Write clean, maintainable, and well‑documented code following secure coding standards and program‑specific guidelines.
• Implement and maintain software components that interface with hardware, operating systems (primarily Linux), and networked systems.
• Develop Python scripts and utilities to support automated testing, data collection, and integration workflows.

Testing, Integration & Optimization:

• Develop and execute unit tests and automated unit test scripts; analyze results and resolve defects.
• Participate in hardware/software integration activities, including lab bring‑up, interface verification, and system‑level debugging.
• Review and act on static/dynamic code analysis and security scan results to improve code quality and compliance.
• Support performance and reliability tuning of airborne software under real‑time or near real‑time constraints.

Troubleshooting & Support:

• Diagnose complex software defects across the stack (application, OS, hardware interfaces) in lab and integration environments.
• Support integration events, flight readiness activities, and defect resolution in a fast‑paced, mission‑driven environment.
• Document issues, root cause analyses, fixes, and preventive actions in accordance with program standards.
• Collaborate with systems, hardware, test, cybersecurity, and program management teams to refine requirements and design solutions.
• Participate in agile development processes (e.g., sprint planning, daily stand‑ups, retrospectives) and provide accurate status updates.
• Use GitLab and related tools for source control, code review, issue tracking, and CI integration.

Documentation, Compliance & Security:

• Produce and maintain technical documentation, including software design descriptions, interface specifications, and test procedures.
• Ensure compliance with internal software development processes, DoD/industry standards, and cybersecurity requirements.
• Operate within a secure, closed‑area environment, adhering to all information assurance and security protocols.

Qualifications:

• Education: Bachelor’s degree in Computer Science, Software Engineering, Computer Engineering, or related field; or a combination of education and relevant experience.
• Experience: Typically 3+ years of software engineering experience, with emphasis on embedded, real‑time, or mission‑critical systems.
• Required Skills:
• Strong proficiency in C and/or C++ for embedded or mission system development.
• Experience developing on Linux, including use of command line tools, build systems, and debuggers (e.g., gdb).
• Hands‑on hardware/software integration and debugging experience (e.g., working with drivers, interfaces, and lab equipment).
• Ability to review and respond to static code analysis and security scan results.
• Experience creating and executing unit tests and test scripts (Python strongly preferred for automation).
• Strong analytical, debugging, and problem‑solving skills in complex technical environments.
• Effective communication and teamwork skills within cross‑functional engineering teams.
• Ability to work full‑time in a secure, on‑site closed area.
• Preferred Skills :
• Experience with:
• Airborne, avionics, or aerospace/defense software programs.
• Real‑time operating systems (RTOS) and/or low‑level hardware interfaces.
• Continuous Integration (CI) using GitLab CI or similar tools.
• Jira, Confluence, and similar engineering collaboration tools.
• Knowledge of:
• DoD software and security standards and secure coding practices.
• Networking protocols, messaging, and data buses common in airborne systems.
• Model‑based design or simulation tools (where applicable).
• Relevant certifications (e.g., Security+, embedded systems, Linux) are a plus.

Ability to work at a desk and operate a computer for extended periods. Work performed fully on‑site in a secure, closed‑area facility.

Work Schedule:

This is a full‑time position, typically working 40 hours per week. Overtime may be required depending on operational needs. Full‑time, typically 40 hours per week; overtime may be required during key integration events, test campaigns, or major milestones.

• Great Company Culture. Infinity firmly believes that our success is due to the happiness and personal satisfaction of our employees.
• Health Benefits. 100% Company Paid monthly Medical and Dental premiums for you AND your family.
• Prepare for the Future. 401(k) company contribution, with free professional financial planning advisors.
• Rest and Relaxation. Three weeks' Vacation– and we offer an annual company reward trip after one year of employment.
• Health and Wellness. We offer 48 hours of sick leave, in addition to your Vacation, as well as Flex‑Spending options (Medical and Dependent Care).
• Work that Stays at Work. Genuine work/life balance and flexibility. We know our employees have lives outside of work and we support you in living them!
• Education and Professional Training Reimbursement. We support our employees career aspirations and growth through our Education Reimbursement Program!
• Profit Sharing Plan. Infinity’s success is due to our employees which is why all eligible employees receive an annual payout based on our Profit‑Sharing Plan.

U.S. Citizenship is required.

To learn more about our company and benefits, please visit: Infinity Careers

Application Deadline: This will be posted for a minimum of 30 business days or until a sufficient candidate pool has been collected. Job posting may come down early due to volume of applicants.