Engineer II, Simulation Framework

Location: On-site in San Diego, California or Washington, D.C.; U.S. citizenship required

Company

hirify.global develops defense technology involving autonomy software, modeling and simulation, and technical integration.

What you will do

• Develop, compile, test, and maintain C++ and Python software for simulation adapters, plugins, and interfaces.
• Contribute to integrations for AFSIM, NGTS, Aechelon, HMSSimBlocks, and the Hivemind Simulation Framework.
• Support the migration of HMSSimBlocks capabilities to HMSF by porting modules, updating interfaces, validating behavior, and documenting compatibility considerations.
• Build reusable simulation components and plugin patterns for sensors, vehicle models, effects, and mission capabilities.
• Maintain CIGI-based interfaces and verify CSF loading, DDS communications, GRID requirements, and Hivemind SDK compatibility.
• Investigate integration issues through logs, network traffic, DDS messages, API behavior, configuration files, and call stacks while collaborating with simulation, autonomy, and integration teams.

Requirements

• Master’s degree in computer science, computer engineering, aerospace engineering, mechanical engineering, systems engineering, or a related technical discipline; equivalent practical experience may be considered.
• Foundational programming experience with C++ and Python, plus familiarity with Linux development environments, command-line tools, compilation, and scripting.
• Understanding of Git-based version control, debugging, code review, automated testing, object-oriented programming, APIs, interfaces, and modular software design.
• Exposure to networking concepts such as TCP, UDP, client-server communication, message passing, or data serialization.
• Interest in modeling and simulation, autonomy, robotics, distributed systems, game engines, visualization systems, or defense technology.
• Ability to obtain and maintain an active U.S. SECRET security clearance; U.S. citizenship is required.

Nice to have

• Experience with simulation, robotics, autonomy, game engines, embedded systems, or vehicle modeling through internships, academic work, research, or personal projects.
• Exposure to AFSIM, NGTS, Unreal Engine, Unity, Gazebo, ROS/ROS 2, MATLAB/Simulink, or similar environments.
• Familiarity with DDS, ROS 2, ZeroMQ, gRPC, message queues, CIGI, DIS, HLA, CSF, or other simulation standards.
• Experience with GoogleTest, pytest, CTest, CMake, Make, Bazel, Docker, or Podman.

Culture & Benefits

• Hands-on work alongside experienced engineers and senior technical mentors.
• Collaboration with simulation, autonomy, and integration teams.
• Participation in code reviews, design discussions, bug triage, and collaborative debugging.
• Development of unit tests, automated integration tests, documentation, and example configurations.