Simulation Engineer

Apex Technology, Inc.•Los Angeles, CA

1d•Onsite

About The Position

As a Simulation Engineer, you will be responsible for developing closed-loop spacecraft test platforms — such as six degrees of freedom simulation platform (6DOF), software-in-the-loop (SITL) and hardware-in-the-loop (HITL) — and executing simulation testing strategies to validate and verify the performance, functionality, and reliability of satellite systems. Your expertise and attention to detail will play a critical role in ensuring the successful deployment and operation of Apex's satellite buses. In this role, you will collaborate with multidisciplinary teams of engineers and technicians to design, implement, and integrate realistic test environments using simulation and emulation tools. We are looking for motivated engineers who are eager to solve complex problems with a focus on practicality and scalability, and who thrive in a dynamic, fast-paced environment.

Requirements

U.S. Person status is required as this position needs to access export-controlled data.
Bachelor’s degree in Computer Science, Computer Engineering, Electrical Engineering, Aerospace Engineering, or a related field. Master's degree is a plus.
3+ years of experience developing closed-loop simulation tools e.g. 6DOF, SITL, PITL, HITL
Strong proficiency in programming languages such as C/C++, Rust, Python.
Comfortable operating and developing within Linux environments
Familiarity with standard software development practices, including testing frameworks, Docker, CI/CD pipelines, and agile development
Experience designing, implementing, and validating physics-based simulation models for closed-loop systems
Experience emulating and integrating virtual sensors, actuators, and test equipment with serial interfaces, network interfaces, and conventional I/O interfaces
Experience with data analysis techniques, automation tools, and pipeline development
Strong analytical and problem-solving skills with keen attention to details
Excellent verbal and written communication skills
Proven ability to work independently and take ownership of technical deliverables
Proven ability to work in a fast-paced and dynamic environment while delivering results

Nice To Haves

Experience in aerospace or satellite industry
Knowledge of satellite subsystems such as sensors, actuators, controls, communications, and power
Experience engineering complex systems that require precise timing, deterministic execution, and high performance, such as real-time and HPC systems
Experience developing and maintaining complex build systems, virtual test environments, and CI/CD
Knowledge of embedded Linux operating systems and/or real-time operating systems

Responsibilities

Own closed-loop spacecraft simulation platforms from initial design to deployment
Develop and maintain core simulation capabilities such as scheduling, data routing, diagnostics, configuration, and Monte Carlo capabilities
Develop and maintain simulation models, emulators, and hardware/software interfaces with units under test
Collaborate with cross-functional teams to define test requirements, test procedures, and execute tests
Analyze test data, identify trends, and generate meaningful insights for test results and model improvements
Develop tools to automate simulation workflows, enable data analysis, and produce test reports
Debug complex closed-loop interactions between units under test and simulation
Help shape long-term technical architecture and roadmap for our simulation platforms

Benefits

Shared upside: Receive equity in Apex, letting you benefit from the work you create
Best-in-class healthcare: 100% company-paid medical, dental, and vision for you and your dependents, plus $100k life insurance at no cost
Comprehensive PTO package to reset and recharge - starting at 15 days vacation, growing to 20+ days annually, plus 10 paid holidays
Competitive 401(k) plan with generous matching - 100% match on first 3%, 50% on next 2%
8 weeks paid parental leave plus childcare reimbursement up to $350/day for work-related travel
Daily catered lunch and unlimited snacks to keep you fueled throughout the day
Vibrant community: Monthly office BBQs, pickleball tournaments, run club, and social gatherings for you and your family
Your dream desk setup and all the tools you need to be your most productive self
World-class Playa Vista office with EV chargers, with the benefit of in-person collaboration with amazing coworkers and flexibility to integrate work and life
Real impact opportunity: Work alongside experts from aerospace, new space, and other cutting-edge industries to make a lasting difference