Senior Mission Systems Software Engineer

About the Company

Singularity Defense Corp. is a stealth-mode Aerospace & Defense startup headquartered in Gardena, CA. Our founding team hails from SpaceX, Anduril, and Lockheed Martin, and we are backed by Joint Staff-level military leadership and several Silicon Valley firms.

Responsibilities

• Design, implement, test, and maintain high-quality modern C++ software for mission systems
• Contribute to fire control, ground systems, and flight software efforts
• Refactor and improve existing software architecture, reliability, maintainability, and testability
• Work with Linux-based systems deployed on embedded and edge compute platforms
• Interface with hardware-adjacent systems, sensors, and embedded compute
• Build software that communicates over real-world networks, including unreliable or constrained data links
• Debug complex system-level issues across software, hardware, networking, and deployment environments
• Collaborate with mechanical, electrical, software, GNC, and operations teams
• Support occasional field testing, integration events, and customer demonstrations
• Apply a security-oriented mindset to system design and implementation

Requirements

• Strong Modern C++ (23) experience
• Strong CS fundamentals: data structures, algorithms, concurrency, memory management, networking, and debugging
• Linux development, debugging, deployment, and maintenance experience
• Networking experience: TCP/UDP, routing, multicast, DNS, DDS, pub/sub, Ethernet
• Understanding of hardware-adjacent software and communication protocols
• Ability to obtain and maintain a U.S. security clearance
• Willingness to travel up to 20%

Preferred Qualifications

• Robotics experience (ROS/ROS2, control algorithms, path planning)
• C2 (Command and Control), Fire control (FCS), or Flight software (FSW) experience
• Nix/NixOS experience
• Cybersecurity mindset: defense in depth, threat modeling, and hardening
• Applied math background: linear algebra, optimization, estimation, or controls
• Basic API/web literacy: REST, gRPC, protobuf, and databases