# Senior Engineer, XBAT Simulation Modeling (R4546) (TX/SD/BOS)

**Company:** [Shield AI](https://hotfix.jobs/companies/shield-ai)
**Location:** Dallas, TX, San Diego, CA, Boston, MA
**Role:** Embedded Engineering
**Salary:** $105k – $155k/yr
**Experience:** 5+ years
**Skills:** C++, Cmake, Gtest, Python, CI/CD, Rigid-Body Dynamics, Kinematics, Simulation Modeling, Performance Optimization, DevOps
**Posted:** 2026-04-09

> Develops high-performance C++ models and infrastructure for aircraft simulation pipelines, including deterministic tools, automated testing, V&V, and performance analysis for XBAT autonomous aircraft. Requires 5+ years in C++ and experience with simulation systems for aerospace/robotics.

## Job Description

## What You'll Do
- Develop models and infrastructure for the integrated simulation pipeline in **C++**.
- Design deterministic, high-performance simulation tools capable of faster-than-real-time execution for development, testing, and release.
- Implement test scenarios and write unit, system, and regression tests.
- Collaborate across autonomy, embedded, GNC, and test engineering to ensure the simulation mirrors real aircraft behavior and mission scenarios.
- Contribute to platform-agnostic simulation tooling to accelerate future development efforts.
- Perform verification and validation (V&V) analysis activities on model tools.
- Conduct system performance analysis and generate reports and visualizations.
- Utilize best practices in **C++**, simulation architecture, and performance engineering.

## Required Qualifications
- **BS** or **MS** in Computer Science, Aerospace, Robotics, or related field.
- **5+ years** of experience in software development, with emphasis on modern **C++ (C++17 or later)** and performance optimization.
- Strong understanding of rigid-body dynamics, kinematics, and basic flight and sensor mechanics.
- Proven experience developing or integrating simulation systems for robotics, aerospace, or autonomous systems.
- Ability to debug complex build and runtime environments (**CMake**, CPM, package management, logging, & profiling tools).
- Experience with software testing tools (**GTest**, etc.).
- Experience with model V&V.
- Strong collaboration and communication skills across software, hardware, and systems disciplines.

## Preferred Qualifications
- Grasp of real-time and deterministic software design, including multi-threading, synchronization, and memory management.
- Experience with DevOps-integrated simulation workflows, including **CI/CD** and automated hardware testing environments.
- Working knowledge of **Python** for data analysis, test automation, or simulation orchestration.
- Familiarity with aircraft and flight physics modeling.

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