Simulation & Modeling Engineer I

At Vast, we envision a future where humanity thrives in space. Our mission is to develop state-of-the-art space stations that will ensure a continuous human presence in space, facilitating advanced microgravity research and fostering a new economic landscape for government, corporate, and private clients. With our innovative, hardware-rich approach, we are rapidly progressing towards the completion of our multi-module Haven Station. Following the successful Haven Demo in 2025, Vast stands as the only operational commercial space station company capable of both flying and managing its own spacecraft. The upcoming launch of Haven-1 marks a significant milestone as it is expected to be the world’s first commercial space station, paving the way for additional Haven modules to establish a permanent human presence by 2030. Our dedicated team is committed to executing this mission safely and efficiently. If you are eager to collaborate with some of the brightest minds in the industry to advance space exploration for humanity, we invite you to join our team.We are currently seeking a Payroll Administrator I, who will report directly to the Senior Payroll Manager. This role is pivotal in supporting the development of the systems necessary for designing and constructing artificial-gravity human-rated space stations.As a detail-oriented Payroll Administrator, you will play a crucial role in our Finance team, ensuring accurate and timely payroll operations. This position is vital for maintaining compliance, assisting employees, and enhancing payroll processes in our dynamic and rapidly growing environment.This is a full-time, non-exempt position based in Long Beach.

At Relativity Space, we are pioneering the future of space exploration with innovative rocket technology. Our Terran R vehicle is designed to meet the increasing demand for launch capacity, delivering customer payloads to orbit. This is just the beginning; achieving commercial success with Terran R will open doors to new scientific discoveries and advancements in exploration and innovation.Joining Relativity means being part of a dynamic environment where autonomy, ownership, and impact are integral at every level. You will engage in solving unprecedented challenges, contributing to the development of rockets, factories, and a thriving business from the ground up. Whether your expertise lies in propulsion, manufacturing, software, or avionics, you will collaborate across teams, influence decision-making, and witness your contributions come to life swiftly. Relativity is where creativity meets technical excellence, and your insights will shape our collective journey. This is a unique opportunity to make a significant mark on our product, processes, and culture as we gain momentum with Terran R. The most meaningful work of your career awaits—join us.

Role overview Accor Hotels is seeking a Payroll Manager based in Long Beach. This position leads payroll operations, manages accurate payroll processing for employees, and upholds compliance with local laws. The Payroll Manager plays a key role in maintaining reliable payroll systems and supporting overall financial operations. What you will do Oversee the entire payroll process, ensuring accuracy and timely completion Maintain and regularly update employee payroll records Monitor payroll activities to ensure compliance with local regulations Provide dependable payroll data to support financial operations Requirements Strong analytical skills Attention to detail Proactive problem-solving abilities Experience managing payroll functions Payroll expertise at Accor Hotels helps keep financial operations running smoothly and contributes to a positive experience for every employee.

At Relativity Space, we are revolutionizing the aerospace industry by building advanced rockets that not only meet the demands of today but also pave the way for tomorrow's innovations. Our Terran R vehicle is designed to deliver customer payloads into orbit, addressing the increasing need for launch capacity. This venture is merely the beginning; achieving commercial success with Terran R will unlock new avenues to advance science, exploration, and innovation, driving progress beyond the unknown.When you join Relativity, you become part of an environment where autonomy, ownership, and impactful contributions are paramount. Here, you won't just complete tasks; you'll tackle unprecedented challenges, contributing to the development of a rocket, a factory, and a groundbreaking business from the ground up. Whether your expertise lies in propulsion, manufacturing, software, avionics, or corporate functions, you'll collaborate across teams, influence decisions, and witness your work come to fruition at an unprecedented pace. Relativity fosters a culture where creativity and technical rigor intertwine, and your voice will shape the narrative we are crafting together. This is a pivotal moment in our journey—it's early enough for you to leave your mark on our product, our processes, and our culture, yet advanced enough that Terran R is tangible and gaining momentum. The most significant work of your career awaits. Join us.About the Team: The Stage Manufacturing team is at the forefront of transforming design into reality, responsible for constructing Terran R’s primary structures. This role is not about repetitive tasks; it's about creating the systems that will build the rocket. Engineers and technicians collaborate closely, providing real-time feedback to enhance our building processes, ensuring we deliver on Terran R's objectives by solving challenges as they arise, optimizing for scalability, and continuously refining our methods. As the vehicle evolves, so too will our factory, presenting opportunities to integrate automation, machine learning, and cutting-edge technologies. What we create here will define the future of aerospace manufacturing.

Join Essel Environmental as an Office Administrator, where you will play a pivotal role in overseeing daily office operations in a dynamic environment focused on waste management and landfill services. The ideal candidate is organized, proactive, and adept at multitasking to ensure smooth functionality across various teams.Key Responsibilities: Oversee the management of office supplies and inventory, guaranteeing that all necessary materials are accessible for staff. Coordinate and schedule meetings, including booking conference rooms and preparing agenda materials. Assist in the onboarding process for new employees by preparing documentation and conducting orientation sessions. Maintain both electronic and paper-based filing systems to ensure efficient organization. Handle incoming calls, inquiries, and correspondence while directing them to the appropriate parties. Support project teams with various administrative tasks, such as data entry and report preparation. Ensure the office is clean and organized to foster a productive work environment.

Join our dynamic team as a HEDIS Administrative Assistant in Long Beach, California! In this pivotal role, you will support our healthcare initiatives by assisting with the collection, organization, and analysis of healthcare data pertinent to the Healthcare Effectiveness Data and Information Set (HEDIS). This is an exciting opportunity to contribute to improving healthcare quality and outcomes.Your responsibilities will include managing documentation, coordinating with various departments, and ensuring compliance with HEDIS standards. You will play a crucial role in enhancing our data accuracy and efficiency, making a significant impact on our healthcare services.

Join our dynamic team at Atialtd as an Intern - Journalist and Facebook Administrator. This is a unique opportunity for aspiring journalists to gain hands-on experience in digital content creation and social media management. You will play an integral role in producing engaging content and managing our Facebook presence, helping us connect with our audience effectively.

Join our dynamic team at Healthcare Support Staffing as an Office Clerk, where you will play a vital role in ensuring the smooth operation of our administrative functions. We are seeking detail-oriented individuals who excel in a fast-paced environment and are committed to delivering exceptional service.

Join atialtd as a dedicated Facebook Administrator Intern! This exciting internship will provide you with the opportunity to gain hands-on experience in social media management and digital marketing. You will work closely with our marketing team to enhance our online presence and engage with our audience on Facebook.

Apex Focus Group collaborates with research organizations, academic institutions, and brands to gather authentic consumer insights. We offer individuals a chance to engage in flexible, work-from-home research opportunities, playing a crucial role in shaping products, services, and overall user experiences.Role OverviewWe invite individuals from diverse backgrounds, particularly those interested in administrative assistant roles, to join our consumer research studies. These studies may involve online interviews, product evaluations, or feedback sessions, predominantly conducted remotely.This casual, project-based role is perfect for those looking to participate part-time in research activities based on their availability and profile suitability.

At Relativity Space, we are at the forefront of aerospace innovation, crafting rockets that not only meet today's demands but also pave the way for tomorrow's scientific breakthroughs. Our flagship vehicle, the Terran R, is designed to transport customer payloads into orbit, addressing the increasing need for launch capacity. This marks just the beginning; achieving commercial success with Terran R will unlock new avenues for scientific exploration and technological advancement, pushing the boundaries of what is known.Joining Relativity means becoming an integral part of a dynamic environment where autonomy, ownership, and the potential for impact are emphasized at every level. Here, your role extends beyond merely executing tasks; you will tackle challenges that have yet to be resolved, contributing to the development of a rocket, a manufacturing facility, and a thriving business from the ground up. Whether your expertise lies in propulsion, manufacturing, software, avionics, or corporate functions, you will collaborate across teams, influence critical decisions, and witness your contributions take flight in record time. Relativity is a space where creativity and technical excellence converge, and your insights will shape the narrative of our collective journey. Now is an exceptional time to make your mark on our product, processes, and culture, as the Terran R program gains momentum. The most meaningful work of your career is waiting. Join us.

ABOUT ROCKET LABRocket Lab is a pioneering end-to-end space company that provides agile launch services, comprehensive spacecraft design and manufacturing, payload delivery, satellite components, and more, all aimed at democratizing access to space. Our rockets and satellites facilitate some of the most ambitious and critical space missions worldwide, contributing to scientific exploration, Earth observation, climate change initiatives, national security, and groundbreaking technology demonstrations.Our Electron rocket has established itself as the second most frequently launched U.S. rocket each year, successfully delivering over 230 satellites into orbit. Meanwhile, we are developing Neutron, our forthcoming medium-lift, reusable launch vehicle designed for deploying larger satellite constellations. Our Space Systems division specializes in designing and manufacturing a wide array of satellites, payloads, and components, including those selected for NASA's Moon and Mars missions and parts utilized in the James Webb Space Telescope.IT TEAM OVERVIEWThe IT team at Rocket Lab plays a vital role in facilitating information access and operational management across our global teams via our computer systems, networks, and devices. Our dedicated IT professionals are adept problem-solvers who thrive in a dynamic environment, supporting our proprietary systems and personnel across various departments, from finance to launch operations.ROLE SUMMARY: SENIOR IT SYSTEMS ENGINEERThis position, located at Rocket Lab's global headquarters in Long Beach, CA, involves joining a fast-paced, collaborative manufacturing environment. As a Senior IT Systems Engineer, you will be responsible for the implementation, administration, and operational support of code-based infrastructure utilized at Rocket Lab.KEY RESPONSIBILITIES:Provide expert guidance and support in managing and delivering IT systems, ensuring efficient cloud infrastructure management and project delivery.Conduct upgrades and maintenance with a focus on continuous improvement to ensure a reliable and secure infrastructure.Lead project planning and execution for infrastructure projects.Collaborate with a team of IT professionals to address and resolve complex technical challenges.

Join our innovative team at vast as a Sensor Development Engineer I. In this exciting role, you will collaborate with cross-functional teams to design, develop, and test advanced sensor technologies. Your contributions will be crucial in enhancing our product offerings and advancing our mission to deliver state-of-the-art solutions.

Join Vast as a Solar Arrays Engineer I and be part of an innovative team dedicated to the design and implementation of cutting-edge solar energy solutions. Your expertise will contribute to the development of sustainable energy systems that power communities and businesses.

Join Vast as an EMI-EMC Engineer I, where your skills will play a crucial role in the development and testing of innovative electromagnetic compatibility (EMC) solutions. Collaborate with a dynamic team to ensure products meet stringent EMC standards and perform optimally in various environments.

ABOUT ROCKET LABRocket Lab is an innovative space technology company providing comprehensive launch services and advanced spacecraft design and manufacturing. Our mission is to democratize access to space, enabling groundbreaking space missions that support scientific research, Earth observation, national security, and innovative technology demonstrations.The Electron rocket has emerged as the second most frequently launched U.S. rocket, successfully delivering over 230 satellites to orbit. We are also focused on developing Neutron, our next-generation medium-lift, reusable launch vehicle designed for larger satellite constellations. Our Space Systems division designs and manufactures a wide array of satellites and payload components, including spacecraft selected for NASA missions to the Moon and Mars, as well as components for the James Webb Space Telescope.IT DEPARTMENTOur IT team ensures that our global operations run smoothly by providing seamless access to information across various systems and devices. We pride ourselves on being flexible problem-solvers in a dynamic environment, dedicated to supporting our proprietary systems and the diverse needs of our teams.FINANCIAL SYSTEMS ANALYST ILocated at our headquarters in Long Beach, CA, the Finance Systems Analyst I will collaborate with the Finance, Accounting, FP&A, and Enterprise Information Systems (EIS) teams. You will play a crucial role in maintaining, optimizing, and supporting business systems that enhance operational efficiency and facilitate scalable growth. The ideal candidate will possess a foundational understanding of finance and accounting processes, technical systems, and data analysis, with a strong eagerness to learn and bridge business requirements with system capabilities. This role involves working closely with other Business Analysts and IT Operations teams, ensuring that business processes are aligned with effective and stable technical systems.

Role Overview Rocket Lab USA, Inc. is hiring a Senior Software Engineer I in Long Beach, CA. This role focuses on building software solutions that support the company’s rocket technologies and space missions. What You Will Do Design, implement, and optimize software systems for rocket and mission support Work closely with other engineers to deliver reliable, high-quality code Contribute to the development of tools and systems that enable Rocket Lab’s space access initiatives Collaboration Senior Software Engineers at Rocket Lab work in cross-functional teams, sharing ideas and technical insight to solve complex engineering challenges together.

Role overview Rocket Lab USA, Inc. seeks a Senior RPA Developer I based in Long Beach, CA. The role centers on designing and building automation solutions that simplify business operations and boost productivity for multiple teams. What you will do Create, test, and implement robotic process automation (RPA) solutions to increase operational efficiency. Work with stakeholders to spot automation opportunities and turn business needs into technical solutions. Apply RPA expertise to help teams operate more effectively in support of Rocket Lab’s mission to expand access to space. Requirements Background in RPA tools and automation methodologies. Ability to approach business process improvement with creativity and initiative. Strong communication skills and a team-oriented approach to solving problems.

Join Rocket Lab as a Senior Fluid Systems Engineer I, where you will play a crucial role in the design and development of our advanced fluid systems. Your expertise will contribute to cutting-edge projects, ensuring performance and reliability in our launch vehicles. You will collaborate with a talented team, leveraging your skills in fluid dynamics and system integration to drive innovative solutions.