Modeling and Simulation Software Integration Engineer (Mid-Senior)
Crossflow TechnologiesHuntsville, ALOn-siteFull-time
Salary not published by the employer
Timing
- Posted by employer
- Aug 10, 2026, 12:00 AM UTC4 days ago
- Detected by our platform
- Aug 14, 2026, 2:56 PM UTC4 hours ago
- Last confirmed present
- Aug 14, 2026, 2:56 PM UTC
- Employer close date
- Aug 31, 2026, 12:00 AM UTC
Description
Modeling and Simulation Software Integration Engineer (Mid-Senior) The M&S Software Integration Engineer will support the mission of the Missile Defense Agency (MDA) Engineering Directorate Modeling & Simulation (M&S) Office to test the Missile Defense System (MDS) in a distributed Hardware-In-the-Loop (HWIL) simulation environment, including MDS Ground Test (GT) events and MDS Flight Test support (pre-mission risk reduction, mission execution team training, and post-flight reconstruction), as well as M&S development and test support to other Department of Defense (DoD) Partners. Responsibilities and areas of support include, but are not limited to the following: Support the integration, testing, and operation of HWIL simulation environments for MDS Ground Tests, Flight Tests, and continuous integration activities. Conduct installation, configuration, checkout, and testing of Objective Simulation Framework (OSF) systems in accordance with program requirements. Analyze HWIL architecture performance and assist in identifying and resolving hardware/software integration issues. Evaluate and troubleshoot network traffic and connections Responsible for installing and configuring M&S Framework in compliance with program instructions, ensuring functionality between MDA elements, and documenting configurations and results within the government lab Execute test scenarios, including threat modeling and simulation for mission-specific requirements. Document system configurations, test procedures, and results, and generate reports to support test events and analysis. Adhere to current processes and procedures, provide status as requested, and collaborate with team members in person and electronically Collaborate with teams and support mission planning, execution, and post-event analysis for ground and flight test activities, including pre-mission risk reduction and post-flight reconstruction. Desired qualifications include: System Administration experience and certifications such as Security+ and/or Linux+ are highly desirable Familiarity with operating and managing containerized applications in a cloud-based environment Experience supporting Missile Defense Agency (MDA) programs or similar defense systems. Familiarity with Objective Simulation Framework (OSF) or similar simulation tools. Familiarity with GMD System Trainer (GST),with BCM - Ballistic Missile Defense System (BMDS) Command and Control, Battle Management, and Communications (C2BMC) Model, and with TGx – Threat Generator External. Software testing background with experience in the development of software test plans, test procedures, and test reports Prior Test and Evaluation (T&E) experience supporting Pre-Flight/Ground Testing supporting Missile Defense Agency (MDA) Travel: Travel: This role requires the ability to travel up to 25-30% to support mission-critical events and meetings. Work Schedule: Occasional night and weekend work is expected to meet critical testing schedules and event-driven timelines. Education: BS in Engineering, Mathematics or Computer Science from an accredited university 5-7 years' experience Clearance SECRET clearance/ TS Preferred Position requires that candidate possesses a final and active SECRET security clearance and is able to maintain the clearance. Work Location Huntsville, AL Redstone Arsenal- On-site Tasks will primarily be performed in the local government facility but may also require support in various other CONUS and OCONUS locations. Equal Opportunity/Affirmative Action Employer: Crossflow ensures that employment decisions and personnel actions are administered fairly, equitably, and in compliance with the federal, state, and local laws and regulations governing EEO and personnel management. All qualified individuals will receive consideration for employment opportunities without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. Why Crossflow? Crossflow Technologies is proud to offer such wonderful benefits and perks to our employees; however, we feel the biggest perk is our company culture. We harbor a culture that extends down to the individual level by hiring people who understand and embrace our company values. Values like fervently protecting work-life balance and celebrating the achievements of others. To help guide and shape this environment, we strive to solicit feedback as frequently as possible through direct conversations and anonymous input. We take great pride in the fact that we have been contenders for the Best Places to Work award for the past few years - particularly when paired with having made the Inc. 5000 list for growth. To us, this demonstrates our ability to effectively scale our culture showing that Crossflow has been and continues to be, a place that people want to be. Benefit-Eligible Employee Perks: EXCEPTIONAL HEALTH, DENTAL, AND VISION COVERAGE Crossflow is pleased to offer employees with exceptional single and family options for health, dental, and vision coverage. Payments are taken from the first two paychecks of each month. At a glance, • Health coverage choices (including an HSA) ranging from $0.00 to $403.14; • Dental coverage ranges from $8.23 to $31.65; and • Vision coverage ranges from $8.28 to $21.80 CROSSFLOW KUDOS SPOT BONUS PROGRAM We created a unique performance bonus program called Crossflow Kudos. Throughout the year, employees are nominated by other employees, company leads, and even individuals outside of Crossflow to receive additional compensation and personal recognition for their positive work. There are six broad categories in which employees can earn Kudos awards. 401(k) RETIREMENT PLAN & COMPANY MATCHING Crossflow uses Principal as our 401(k) plan sponsor. Employees can choose payroll deduction and fund investing options. Payroll deductions will begin the month following your enrollment. Crossflow matches 100% of the first 3% of compensation, plus 50% of the next 2% of compensation. Employee Stock Ownership Plan (ESOP) Crossflow Technologies offers benefit-eligible employees participation in an Employee Stock Ownership Plan (ESOP). Through the ESOP, eligible employees may receive an ownership interest in the company, creating an opportunity to share in Crossflow's long-term success while building retirement value alongside our other employee benefits. HIGHER EDUCATION ASSISTANCE PROGRAM Crossflow offers education assistance to benefit-eligible employees for degree programs at their director's discretion. Crossflow feels that a well-rounded education, even outside of an employee's current role, can enhance an employee's skillset and increase the company's value. GENEROUS PTO ACCRUAL & FLEXIBLE LEAVE POLICY Crossflow currently grants 11 federally observed paid holidays. In addition to these holidays, Crossflow offers a minimum of 2 weeks of paid time off (PTO) to all full-time employees. Employees may utilize PTO for any reason (sickness, vacation, personal day, etc.) and can carry over a maximum of 120 hours from year to year. Many employees are authorized to work additional hours within a normal, forty-hour pay period. This approval is included in the employee's offer letter for employment. These extra hours may be banked for compensatory (comp) time off. PAID PARENTAL & BEREAVEMENT LEAVE To help our employees be present with family during major life events, Crossflow provides additional PTO. We offer varying types of paid Parental Leave to aid birthing, non-birthing, and adoptive parents transition into parenthood. Crossflow also recognizes the importance of supporting employees who endure a death in their family by providing up to 5 days of paid Bereavement Leave a year. PROFESSIONAL DEVELOPMENT FUNDING We support employees who seek out personal or professional growth opportunities through countless of enabling programs to further equip themselves. Professional Development includes, but is not limited to, training courses, certificate programs, memberships to industry groups, and materials. EMPLOYEE DRIVEN COMMUNITY ENGAGEMENT We create as many opportunities as possible for employees to meet and build community. We offer monthly team bonding activities, allowing team members to assemble on a different level than at work. In addition to these gatherings, in 2021 we established Crossflow Cares, an employee-owned and operated charitable organization focused on awarding grants and providing volunteers to local non-profits. Furthermore, Crossflow Technologies is committed to serving the public by investing a large portion of our net income in the greater Huntsville/Madison County area. MENTORSHIP PROGRAM & MORALE LUNCHES The most successful people in the world always have a terrific team behind them, and Crossflow chooses to be the team behind the people, cheering our employees on to meaningful successes. Our Mentorship Program involves strategically pairing a protégé with a mentor who understands an employee's career aspirations and provides coaching towards that goal. A less structured version of this is our Morale Lunch program. We committed a portion of our budget to support our leads to meet with their team members over lunch and facilitate quality catch up sessions. The morale lunches have become a great tool for maintaining open communication and gaining insightful feedback.