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Job Description:

Parsons is seeking a talented Senior Modeling and Simulation Software Developer to join our diverse team supporting the warfighter and prominent acquisition and intelligence programs. The Parsons team supports a customer providing a critical role in our nation’s defense by assessing, developing, and integrating intelligence-backed, medium- to high-fidelity threat system models from across the Defense Intelligence Enterprise into a cohesive wargame simulation environment.

In this role, you will be a key part of a development team comprised of engineers and software developers working together to assess systems and develop software models of real-world threat weapon systems that capture the capabilities and limitations of emerging and fielded systems. You will contribute to the entire development process, including requirements definition/decomposition, design, development, integration, testing, and verification and validation. Our team develops and maintains a variety of weapon system models, including electronic warfare systems, communication systems, radar systems, command and control systems, surface-to-air missile systems, gun-based defense systems, and mobile ground and air platforms.

The Software Developer will support and potentially lead team activities focusing on prototyping and developing digital twin software models of threat weapon systems including Surface-to-Air Missile Systems (SAMs), advanced radar platforms, missile seekers, datalinks, and Command and Control (C2/C4/C5ISR) systems. You will work closely with RF, radar, C4, and missile subject-matter experts, using strong C++ and Python programming skills to assess, design, develop, and test complex software. You will implement state-of-the-art software modeling practices and techniques while innovating to advance the capabilities of the current software suite.

The Parsons team has supported this customer for over 25 years, building a growing team with an established relationship that drives mission success.

Why This Job Is Exciting:

• Work That Matters – Directly support the warfighter, acquisition community, and decision-makers by enabling the intelligence community to answer complex, critical questions quickly

• New Challenges Every Day – Work on evolving customer needs, gaining exposure to emerging defense technologies spanning ground, surface, space, and cyber domains

• Competitive Pay and Benefits – Join a company that prioritizes its employees, offering industry-leading compensation, comprehensive benefits, and opportunities for professional growth

• Security Clearance Opportunities – Parsons provides sponsorship and opportunities to upgrade security clearances for career advancement

What You’ll Be Doing:

1.) Developing and enhancing software digital twins using C++ and Python on Windows and Linux platforms including:

• Modeling advanced threat systems such as Surface-to-Air Missile Systems (SAMs), radar platforms, and missile seekers

• Developing high-fidelity propagation effects, including terrain masking, refraction, and over-the-horizon propagation

• Creating tracking filters and signal processing chains for radar and electronic warfare systems

• Supporting simulation studies and integrating models into larger mission-level simulations

• Algorithm and technique development supporting Sensors, Missiles, and C4 including active/passive detection, clutter modeling, electronic attack, waveform selection, adaptive beamforming, weapon/target assignment optimization

2.) Defining requirements and designing solutions for modeling and simulation (M&S) software

3.) Automated unit, system, and system-of-systems test planning, development, and execution

4.) Participating in technical discussions to assist in near-term and long-term planning.

5.) Collaborating within a team and mentoring junior/mid-level software developers.

Required Clearance:

• Candidate must be a US Citizen

• Candidate must possess an ACTIVE Secret clearance with the ability to obtain a Top Secret / SCI clearance with Counterintelligence polygraph

What Required Skills You’ll Bring:

• Bachelor’s Degree in Computer Science, Computer Engineering, or Electrical Engineering with 8+ years of experience, OR

• Master’s Degree with 6+ years of experience, OR

• Ph.D. with 4+ years of experience

• Very strong programming skills in C++ and Python

• Experience developing products with regular release cycles

• Excellent written and oral communication skills, with the ability to collaborate with technical teams and classified customers

• Experience in DevOps or DevSecOps environments

What Desired Skills You’ll Bring:

• Experience with threat system modeling in TMAP, ODESSA, ESAMS, AFSIM, and/or ITASE

• Experience with modeling in the STIMS 3 framework

• Familiarity with RF hardware, signal processing, and modeling in radar, communications, or electronic warfare systems

• Experience with STIMS 2 (Simulink) and/or STIMS 3 (C++) modeling frameworks

• AGILE software development experience

• Mentoring experience and leadership skills

• Experience designing or operating code for distributed processing environments

• Familiarity with environmental datasets and RF propagation modeling

• Active or ability to obtain TS/SCI clearance with counterintelligence polygraph

Security Clearance Requirement:

An active Secret security clearance is required for this position.​

This position is part of our Federal Solutions team.

The Federal Solutions segment delivers resources to our US government customers that ensure the success of missions around the globe. Our intelligent employees drive the state of the art as they provide services and solutions in the areas of defense, security, intelligence, infrastructure, and environmental. We promote a culture of excellence and close-knit teams that take pride in delivering, protecting, and sustaining our nation's most critical assets, from Earth to cyberspace. Throughout the company, our people are anticipating what’s next to deliver the solutions our customers need now.

Salary Range: $120,800.00 - $217,400.00

We value our employees and want our employees to take care of their overall wellbeing, which is why we offer best-in-class benefits such as medical, dental, vision, paid time off, Employee Stock Ownership Plan (ESOP), 401(k), life insurance, flexible work schedules, and holidays to fit your busy lifestyle!

Parsons is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status or any other protected status.

We truly invest and care about our employee’s wellbeing and provide endless growth opportunities as the sky is the limit, so aim for the stars! Imagine next and join the Parsons quest—APPLY TODAY!

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