Senior Software Engineer I/II - Simulation Engineering

Rocket Lab Corporation • Littleton, CO

3d • Onsite

About The Position

ABOUT ROCKET LAB Rocket Lab is an end-to-end space company delivering responsive launch services, complete spacecraft design and manufacturing, payloads, satellite components, and more – all with the goal of opening access space. The rockets and satellites we build, and launch enable some of the most ambitious and vital space missions globally, supporting scientific exploration, Earth observation and missions to combat climate change, national security, and exciting new technology demonstrations. Our Electron rocket has become the second most frequently launched U.S. rocket annually and has delivered more than 230 satellites to orbit, all while we work to develop Neutron, our upcoming medium-lift, reusable launch vehicle for larger constellation deployment. Our Space Systems business designs and builds our extensive line of satellites, payloads, and their components, including spacecraft that have been selected to support NASA missions to the Moon and Mars and components used on the James Webb Space Telescope. SPACE SYSTEMS At Rocket Lab, we’re not just launching rockets — we're building the future of space. Our Space Systems team builds everything from complete spacecraft, precision payloads to the components and subsystems that allow them to thrive in space, like solar panels, flight software, star trackers, optical systems, separation systems, radios, and more. Our Space Systems team has enabled more than 1,700 missions, ranging from interplanetary exploration, in-space manufacturing to national security and defense initiatives. The team has built spacecraft, payloads, and components for missions to the Moon and Mars, working with partners including NASA, the Space Development Agency, and the U.S. Space Force. Whether it’s a single high-performance spacecraft, constellation, or the vertically integrated components that help them get to space — our world class Space Systems team is empowering some of the boldest and most ambitious space missions. SENIOR SOFTWARE ENGINEER I/II – SIMULATION ENGINEERING We are seeking a highly skilled and experienced Senior Software Engineer I/II – Simulation Engineering to join our team, based out of our Littleton, CO site. In this role, you will focus on designing, developing, and optimizing simulation models and systems to solve complex engineering problems. You will work closely with cross-functional teams to create high-fidelity simulations that drive innovation, improve system performance, and support decision-making processes. This position is ideal for someone with a strong background in simulation, computational modeling, and software engineering, who thrives in solving challenging technical problems. (Please note: This position can be hired at the Senior Software Engineer I or Senior Software Engineer II level.)

Requirements

• Bachelor’s degree in Computer Science, Engineering, Applied Mathematics, Physics, or a related field.
• 5+ years of industry experience in simulation engineering, computational modeling, or related fields.
• Proficiency in programming languages such as Python, C++, MATLAB, or similar.
• Experience with simulation frameworks and tools (e.g., Simulink, ANSYS, COMSOL, or custom-built simulation engines).
• Experience modeling physical systems such as spacecraft, aircraft, or robotics.
• Experience with Monte Carlo simulations.
• Experience designing and implementing graphical user interfaces (GUI).
• U.S citizenship required, due to program requirements
• Bachelor’s degree in Computer Science, Engineering, Applied Mathematics, Physics, or a related field.
• 8+ years of industry experience in simulation engineering, computational modeling, or related fields.
• Proficiency in programming languages such as Python, C++, MATLAB, or similar.
• Experience with simulation frameworks and tools (e.g., Simulink, ANSYS, COMSOL, or custom-built simulation engines).
• Experience modeling physical systems such as spacecraft, aircraft, or robotics.
• Experience with Monte Carlo simulations.
• Experience designing and implementing graphical user interfaces (GUI).
• U.S citizenship required, due to program requirements

Nice To Haves

• Active Secret clearance, Top Secret clearance, or ability to obtain and maintain one
• Familiarity with high-performance computing (HPC) and parallel processing.
• Strong understanding of numerical methods, physics-based modeling, and optimization techniques.
• Proven ability to tackle complex technical challenges and deliver innovative solutions.
• Excellent communication and teamwork skills to work effectively with multidisciplinary teams.
• Strong analytical skills with a focus on accuracy and precision in simulation results.
• Experience with machine learning or AI-driven simulation techniques.
• Knowledge of control systems, robotics, or real-time simulation.
• Familiarity with cloud-based simulation platforms or distributed systems.
• Experience in multi-vehicle simulation.
• Experience with distributed compute clusters.
• Experience using AI in software development.

Responsibilities

• Design, develop, and implement simulation models for complex systems and processes.
• Analyze and validate simulation results to ensure accuracy and reliability.
• Collaborate with domain experts to define requirements and refine simulation parameters.
• Optimize simulation performance and scalability for large-scale systems.
• Develop tools and frameworks to support simulation workflows and analysis.
• Integrate simulation models with existing software systems and tools.
• Design and implement graphical user interfaces (GUI) to enhance simulation usability.
• Document simulation methodologies, assumptions, and findings for stakeholders.
• Stay up-to-date with advancements in simulation technologies and methodologies.

Benefits

• You may be eligible for company stock, or cash incentives, and can purchase discounted stock through Rocket Lab’s Employee Stock Purchase Program.
• Employee benefits also include medical, dental, and vision insurance coverage; 401(k) retirement plan options; paid vacation , holidays , and sick leave ; paid parental leave; and other discounts and perks.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level