Senior Software Engineer - Space Systems & Simulation

Rocket Lab USA; Littleton (CO); On-site; USD 120,000 - 165,000; Full time

Job summary

Rocket Lab USA in Littleton, CO is seeking a Senior Software Engineer I/II to help develop next‑gen simulation and modeling tools for aerospace systems, including flight software and ground software capabilities. The role focuses on scalable architectures, UI/UX‑style interfaces, and cross‑platform tooling across Windows and Linux.

You’ll join a collaborative, multi‑disciplinary team, contribute through all phases from requirements to deployment, and work with .NET, Angular, and RESTful APIs in

Qualifications

• Bachelor's degree in Computer Science, Computer Engineering, or a related technical discipline.
• 5+ years (Sr I) or 8+ years (Sr II) of software development experience in simulation, modeling, or aerospace systems.
• Proficiency in C#/.NET and Angular; TypeScript/JavaScript; building RESTful APIs; relational databases (MySQL, SQL Server, SQLite); strong OOP and design patterns.

Responsibilities

• Design, develop, and maintain simulation and modeling tools for aerospace systems, including flight and ground software.
• Develop mission-level wargaming tools across space, air, and ground domains.
• Create software using web technologies across Windows and Linux.
• Collaborate with cross-functional teams to define architectures and deliver solutions.
• Participate in design reviews and refine system requirements.
• Conduct code reviews and optimize performance for large-scale simulations.

Skills

C#/.NET

Angular

TypeScript/JavaScript

RESTful APIs

SQL/Relational DB

OOP & Design Patterns

US citizenship

Education

Bachelor's degree in Computer Science or related

Tools

Docker

Kubernetes

Git

Job description

Rocket Lab USA in Littleton, CO is seeking a Senior Software Engineer I/II to help develop next‑gen simulation and modeling tools for aerospace systems, including flight software and ground software capabilities. The role focuses on scalable architectures, UI/UX‑style interfaces, and cross‑platform tooling across Windows and Linux.

You’ll join a collaborative, multi‑disciplinary team, contribute through all phases from requirements to deployment, and work with .NET, Angular, and RESTful APIs in