Systems Integration Engineer

About Varda SpaceUnlocking the Potential of Low Earth Orbit. At Varda, we are pioneering the advancement of commercial space infrastructure, innovating in areas from in-orbit pharmaceutical production to dependable and cost-effective reentry vehicles.With products ranging from life-saving medications to advanced fiber optics, we are committed to developing the technologies that can only be realized in the unique environment of space. Our mission is to enhance the orbital economy, creating products and infrastructure that directly benefit life on Earth.Our team is comprised of industry leaders and experts with backgrounds in SpaceX, Blue Origin, top pharmaceutical firms, and Silicon Valley tech. Founded in January 2021 by visionaries Will Bruey and Delian Asparouhov, we are supported by premier investors such as Khosla Ventures, Lux Capital, Founders Fund, and others.Headquartered in El Segundo, California, Varda features offices and a production facility dedicated to the development and testing of our vehicles, equipment, and materials. Our presence extends to Washington, DC, and Huntsville, AL.Join us at Varda and contribute to building a vibrant in-space ecosystem.

Varda Space, Inc. develops commercial infrastructure for low Earth orbit, including in-orbit pharmaceutical manufacturing systems and reentry capsules built for efficiency and cost management. The company’s work aims to make space more accessible and useful, supporting advances in pharmaceuticals and fiber optics while expanding economic opportunities in space for the benefit of life on Earth. The team at Varda brings together experience from organizations such as SpaceX, Blue Origin, leading pharmaceutical firms, and Silicon Valley startups. Founded in January 2021 by Will Bruey and Delian Asparouhov, Varda is supported by investors including Khosla Ventures, Lux Capital, Founders Fund, Caffeinated Capital, General Catalyst, and Also Capital. Headquartered in El Segundo, California, Varda’s team handles design, integration, and testing of vehicles, equipment, and materials at its production facility. The company also maintains offices in Washington, DC, and Huntsville, Alabama. Varda’s mission is to lay the groundwork for an in-space economy.

Long Wall Company, established in 2025, is dedicated to advancing missile defense technology for the United States and its allied nations. By leveraging the RS1 and GS0 launch systems, our team is focused on creating containerized, mass-producible missile defense solutions that enable swift and cost-effective flight testing. We believe that enhancing global security and stability necessitates the development of defense technologies that are more affordable, better performing, thoroughly tested, and widely accessible than ever before. We invite you to be a part of this mission.Who We SeekMission-Driven Innovators. We are searching for engineers who approach aerospace challenges with creativity and tenacity. Ideal candidates are those who view setbacks as opportunities for growth and remain committed to delivering optimal solutions for our missions.Accountable Contributors. We value engineers who take full ownership of their work, understanding that collaboration is key to success. The most effective engineers elevate their teammates, as diverse skills create a multiplier effect that drives mission accomplishments.Role OverviewWe are in search of a seasoned avionics technician (S4 or S5) who is passionate about the development and manufacturing of hardware for launch vehicles and defense systems. The ideal candidate will be able to critically analyze and enhance hardware designs and production processes, ensuring that we deliver high-quality components to our projects. Responsibilities include building and testing electrical assemblies and components for our launch vehicles and defense systems, engaging in tasks such as PCB assembly and rework, electro-mechanical assembly, sensor/transducer integration, cable and wire harnessing, final integration, operation of thermal chambers, conducting functional tests, and executing software-driven testing.

About VardaLow Earth orbit is open for business. Varda is pioneering the advancement of commercial space infrastructure, from in-orbit pharmaceutical manufacturing to innovative and cost-effective reentry capsules.Our mission is to harness the potential of space to create products that enhance life on Earth, including essential pharmaceuticals and advanced fiber optics. We aim to drive innovation in the orbital economy by establishing the necessary infrastructure and products.Our team combines expertise from veterans of SpaceX, Blue Origin, leading pharmaceutical firms, and Silicon Valley innovators. Founded in January 2021 by Will Bruey and Delian Asparouhov, Varda has secured significant investment from renowned backers such as Khosla Ventures, Lux Capital, Founders Fund, Caffeinated Capital, General Catalyst, and Also Capital.Headquartered in El Segundo, California, Varda operates a production facility where we design, integrate, and test our vehicles, equipment, and materials. We also have offices in Washington, DC, and Huntsville, AL.Join us at Varda and contribute to building a vibrant in-space ecosystem.

Varda develops infrastructure for commercial activity in low Earth orbit. The team creates technologies that enable manufacturing in space, including pharmaceuticals and advanced fiber optics, and engineers reentry capsules to return these products to Earth. Founded in January 2021 by Will Bruey and Delian Asparouhov, Varda unites engineers and leaders with backgrounds at SpaceX, Blue Origin, leading pharmaceutical firms, and Silicon Valley tech companies. Investors include Khosla Ventures, Lux Capital, Founders Fund, Caffeinated Capital, General Catalyst, and Also Capital. The main production facility is in El Segundo, California, where vehicles, equipment, and materials are developed, integrated, and tested. Varda also maintains offices in Washington, DC and Huntsville, Alabama. The company’s mission is to broaden economic opportunities in space and ensure new technologies deliver practical benefits on Earth.

Senior Mechanical Engineer - Fluid SystemsRadiant Industries is on the lookout for an enthusiastic and experienced Senior Mechanical Engineer specializing in Fluid Systems. This pivotal role involves overseeing the design and development of critical Kaleidos fluid systems, guiding projects from initial design to production. These systems are essential for converting reactor core heat into electrical power.As a key member of our engineering team, you'll engage in trade studies, component selection, thermal hydraulic analysis, piping design, vendor evaluation, assembly, and rigorous testing. Your contributions will play a vital role in launching the first new commercial reactor design in over 50 years by 2026.Responsibilities:Lead the engineering process for fluid systems and components, including compressors, valves, and heat exchangers.Conduct complex thermal and fluid analyses to inform design choices, validate system performance, and maintain structural integrity using hand calculations and finite element analysis tools.Perform trade studies to enhance system performance and fulfill program requirements.Create and implement manufacturing and assembly instructions along with test plans.Manage and maintain a comprehensive Bill of Materials (BOM).Identify and cultivate relationships with suppliers for all components.Oversee the design, manufacturing, and testing schedules for subassemblies.Conduct risk analysis (FMEA) for subsystems.Gather requirements and provide guidance and constructive feedback to engineers across various disciplines.Qualifications:Bachelor’s degree in Mechanical, Materials, Aeronautical, Civil, or Structural Engineering from an accredited institution.Proven experience in fluid system architecture design.A minimum of 4 years of experience in designing, building, and testing fluid systems.In-depth knowledge of fluid dynamics and thermodynamics.Solid understanding of heat exchanger design and analysis techniques.

About VardaLow Earth orbit is open for business. Varda is pioneering the development of commercial space infrastructure, ranging from in-orbit pharmaceutical processing to economical reentry capsules.From critical pharmaceuticals to advanced fiber optics, numerous products essential on Earth can only be produced in the unique environment of space. Varda is at the forefront of innovation in the orbital economy, establishing both the products and infrastructure necessary for space to significantly benefit life on Earth. Our mission is to expand the economic frontiers of humanity.Our team is exceptionally equipped to achieve this ambition, comprising veterans from SpaceX, Blue Origin, leading pharmaceutical firms, and Silicon Valley. Varda was founded in January 2021 by Will Bruey and Delian Asparouhov, backed by prominent investors including Khosla Ventures, Lux Capital, Founders Fund, Caffeinated Capital, General Catalyst, and Also Capital.With headquarters in El Segundo, California, Varda operates offices and a production facility where our vehicles, equipment, and materials are designed, integrated, and tested, and we also maintain offices in Washington, DC, and Huntsville, AL.Join Varda and be part of creating a thriving in-space ecosystem.

About VardaLow Earth orbit is open for business. Varda is at the forefront of developing commercial space infrastructure, ranging from in-orbit pharmaceutical manufacturing to cost-effective reentry capsules.With the potential to create life-saving pharmaceuticals and advanced fiber optics, Varda is pioneering innovations that will enable the orbital economy to directly enhance life on Earth. Our mission is to expand the economic frontiers of humanity.Our team is composed of industry veterans from SpaceX, Blue Origin, leading pharmaceutical firms, and Silicon Valley. Founded in January 2021 by Will Bruey and Delian Asparouhov, Varda has garnered support from distinguished investors including Khosla Ventures, Lux Capital, Founders Fund, Caffeinated Capital, General Catalyst, and Also Capital.Headquartered in El Segundo, California, we operate from our offices and production facility where our vehicles, equipment, and materials are designed, integrated, and tested. We also have locations in Washington, DC and Huntsville, AL.Join Varda to help create a thriving in-space ecosystem.About This RoleVarda is on the lookout for a Senior Systems Engineer, Flight Safety to act as the lead architect for mission safety and reentry compliance. As part of our Mission Assurance team, you will spearhead the development of Flight Safety Analysis and the regulatory strategy essential for FAA Part 450 and Range Safety licensing. This is a highly collaborative position that connects various functions across the organization.

With over 50 years of experience, ENSCO Inc. has been at the forefront of delivering innovative engineering, science, and advanced technology solutions to government and private sectors globally.We take pride in our ability to create and implement cutting-edge technologies that ensure mission success. Our services encompass systems engineering, integration, and advanced technologies that enhance the safety, security, and resilience of critical missions across various domains, including ground, air, space, and information systems.Discover more about ENSCO.Position DescriptionWe are currently looking for a Senior Evolved Strategic Systems (ESS) Program Systems Integration Engineer to join our dynamic Systems Engineering team. This team is responsible for shaping the future of space communication systems that support the Air Force Military Satellite Communications. The successful candidate will engage in Systems Engineering & Integration (SE&I) activities within a multidisciplinary and collaborative framework. You will be expected to collaborate with SE&I team members, contractors, government personnel, and members of the USAF. This role includes leading and supporting multiple working groups to facilitate technical discussions, identify and mitigate risks, address requirement gaps, create briefings, track action items, and document meeting minutes.The MILSATCOM Systems Engineering, Integration, and Test (MSEIT) initiative offers advanced SE&I capabilities for the Air Force’s Space and Missiles System Center. We play a crucial role in the acquisition of state-of-the-art Military Satellite Communications systems, ensuring secure, survivable, and protected communications for our nation’s military personnel. We are seeking technically adept individuals who can thrive in a highly collaborative small team environment, utilizing the latest tools and methodologies to overcome the complexities of integrating sophisticated space and ground communication systems. This position is based on-site in El Segundo, CA. Key responsibilities include but are not limited to:Developing and executing integration strategies and processes to ensure the successful integration of satellite communication systems, segments (Ground, Space, Crypto, Terminals), subsystems, elements, and components; managing the technical baselines among various stakeholders.Conducting thorough analyses of system requirements that define the technical frameworks necessary for successful project execution.

About VardaLow Earth orbit is open for business. Varda is at the forefront of developing commercial space infrastructure, ranging from in-orbit pharmaceutical processing to cutting-edge, economical reentry capsules.We are pioneering innovations in the orbital economy by creating products and infrastructure that enable space to tangibly enrich life on Earth. Our mission is to expand the economic horizons of humanity.Our exceptional team, composed of veterans from SpaceX, Blue Origin, leading pharmaceutical companies, and Silicon Valley, is uniquely equipped to achieve this vision. Founded in January 2021 by Will Bruey and Delian Asparouhov, Varda is supported by esteemed investors including Khosla Ventures, Lux Capital, Founders Fund, Caffeinated Capital, General Catalyst, and Also Capital.Headquartered in El Segundo, California, Varda boasts offices and a production facility dedicated to the construction, integration, and testing of our vehicles, equipment, and materials. We also have locations in Washington, DC and Huntsville, AL.Join Varda and be part of shaping a thriving ecosystem in space.

About Matter IntelligenceAt Matter Intelligence, we are pioneering the future of vision AI with a revolutionary sensor that can perceive molecular chemistry, temperature, and 3D shapes, all integrated into a Large World Model. This innovative system doesn't merely capture images; it comprehensively understands information from a single pixel, which we proudly term as Superintelligent Vision.Join a team of experts who have successfully delivered advanced technologies to Mars for NASA/JPL, co-founded and led infrastructure for OpenAI, developed cutting-edge sensors for U.S. Defense, and created foundational algorithms for spectral and 3D imaging. Together, we are constructing the next generation of infrastructure for vision and intelligence in our physical world.About the RoleWe are on the lookout for a skilled Senior Systems Engineer to take ownership of the end-to-end technical architecture, integration, and mission assurance for a complete remote-sensing space system. In this role, you will act as the technical authority, ensuring that all mission components—from payload and spacecraft to launch, ground operations, and beyond—are cohesively aligned to provide transformative Earth-observation capabilities.Your responsibilities will encompass leading mission systems engineering, orchestrating subsystem integration, maintaining the technical baseline, driving critical design and verification decisions, and guiding the engineering team throughout the entire lifecycle. Your contributions will significantly impact mission feasibility, performance, and long-term operational success.

About Radiant IndustriesRadiant Industries, headquartered in El Segundo, CA, is pioneering the development of the world’s first mass-produced portable nuclear microreactors. Our flagship reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor designed for mobility, capable of providing power for up to five years without the need for refueling. This innovative technology serves as a sustainable alternative to diesel generators, delivering essential power to hospitals, data centers, remote sites, and military bases. Leveraging modern software engineering and advanced materials, we aim to revolutionize nuclear energy. Founded in 2020, we are poised to test our inaugural reactor at the Idaho National Laboratory in the coming year, with commercial deployments targeted for 2028.About the RoleWe are looking for a dynamic and driven early-career Mechanical Engineer to join our team and contribute to the design and integration of electrical systems within our innovative projects. In this role, you will collaborate with seasoned mechanical and electrical engineers to tackle complex challenges related to packaging, thermal management, structural design, and overall system integration for cutting-edge hardware. This position offers a unique opportunity for hands-on experience throughout the entire hardware development process, from CAD design and analysis to testing and validation, all while supporting our mission to successfully launch the first commercial nuclear reactor in over five decades by 2026.Responsibilities & DutiesContribute to the mechanical design and oversight of electrical components and subsystems, including:Designing mechanical assemblies for electrical components such as control panels, enclosures, brackets, mounts, and supports.Routing and securing cables and wiring harnesses, ensuring strain relief, compliance with bend radius, and serviceability.Integrating sensors, actuators, connectors, and electrical hardware within limited spaces.Creating 3D CAD models and 2D drawings using Siemens NX, including tolerance stack-ups and GD&T fundamentals.Conducting initial load calculations (static, shock, vibration) to guide structural design.Performing thermal analyses and heat transfer evaluations for electrical components and assemblies.Assisting in the selection of suitable materials, fasteners, and finishes based on electrical, thermal, and environmental considerations.

Join cx2 as an Electromagnetic Warfare Systems Engineer, where you'll play a pivotal role in designing, developing, and implementing advanced electromagnetic systems. You will collaborate with a dynamic team of engineers to tackle complex challenges and innovate cutting-edge solutions that enhance national security.

About Radiant IndustriesRadiant Industries, based in El Segundo, CA, is pioneering the development of the world's first mass-produced, portable nuclear microreactors. Our flagship product, Kaleidos, is a 1-megawatt, fail-safe microreactor designed for mobility and operational longevity, capable of running for up to five years without refueling. This groundbreaking technology is set to replace diesel generators in various critical applications, including hospitals, data centers, remote locations, and military bases. Our innovative approach integrates modern software engineering with nuclear development to deliver safe, factory-produced microreactors using proven materials. Founded in 2020, Radiant is preparing to test its inaugural reactor at the Idaho National Laboratory next year, with customer deliveries commencing in 2028.Position Overview: Control Systems Test EngineerWe are looking for a driven and meticulous Control Systems Test Engineer to join our dynamic team. In this crucial role, you will take charge of developing, maintaining, executing, and automating comprehensive test cases throughout the testing lifecycle for our reactor control systems. You will work collaboratively with systems engineers, controls developers, and software teams to uphold the highest standards of quality and reliability in our safety-critical control software.Key ResponsibilitiesAnalyze and assess control system Simulink models and related design documents to gain insights into system behavior and expected performance.Interpret system requirements for the reactor control system to establish thorough test coverage.Create and manage detailed test artifacts, including:Unit test casesSoftware-in-the-Loop (SiL) test casesHardware-in-the-Loop (HiL) test casesHardware test casesConduct all testing phases:Unit testingSiL testingHiL testingFull hardware testingAutomate testing workflows for SiL, HiL, and hardware test cases utilizing scripting languages such as Python or Go (Golang).Organize and oversee structured test campaigns, including regression suites.

About RadiantRadiant, located in El Segundo, CA, is an innovative startup pioneering the development of the world's first mass-produced, portable nuclear microreactors. Our flagship reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor designed for mobility and extended operation, capable of providing power for up to five years without refueling. This revolutionary approach to portable nuclear energy aims to replace traditional diesel generators, delivering essential support for hospitals, data centers, remote locations, and military installations. Founded in 2020, Radiant is poised to test its inaugural reactor at the Idaho National Laboratory in the coming year, with initial customer deployments anticipated to begin in 2028.Position OverviewRadiant is searching for a Senior Advanced Controls Systems Engineer to take the lead in designing, implementing, and validating autonomous control systems for our nuclear microreactors. You will manage the entire control system development process—from defining requirements to operational deployment. Responsibilities include algorithm development, modeling and simulation, embedded implementation, and system validation.This role involves the design and integration of tightly coupled control functions that encompass reactivity control, primary loop mass flow, alternator/generator speed, and coordination across multiple reactors within microgrids. The ideal candidate will possess experience working in regulatory environments, developing autonomous and adaptive control strategies, and conducting system-level analyses of nonlinear, coupled dynamic systems. Close collaboration with multidisciplinary engineering teams focused on hardware, software, and system integration is essential.

Rainmaker creates cloud seeding technology aimed at improving water availability and addressing difficult weather patterns. The company’s work brings together radar validation, unmanned aerial systems (UAS), numerical weather modeling, and environmentally mindful seeding materials to help increase precipitation. The engineering team focuses on advancing UAS platforms, developing dispersion payloads, and building both in-situ and remote sensing systems. Projects move quickly and are designed for practical, real-world results. Role overview This Research Engineer in Aerosol & Spray Systems role is suited for those with a background in mechanical or aerospace engineering, especially with expertise in aerosol science, multiphase flow, and compressible fluid dynamics. The position sits at the intersection of cloud physics and advanced fluid systems. Work centers on designing hardware that applies high-velocity gas dynamics to break up nanoparticle agglomerates and atomize liquid precursors into submicron aerosols. Key challenges Efficient dispersion of cohesive dry powders and ultra-fine droplets Managing complex mass transfer and the momentum of particles or droplets Solving mechanical problems while meeting strict aerospace Size, Weight, and Power (SWaP) constraints Location This role is based in El Segundo, CA.

For over 50 years, ENSCO has delivered cutting-edge engineering, scientific, and advanced technology solutions to both government entities and private sectors across the globe.At ENSCO, we take pride in our commitment to pioneering advanced technologies that ensure mission success. Our team excels in systems engineering, integration, and advanced technology services that enhance the safety, security, and resilience of critical operations on land, in the air, in space, and within the interconnected information systems that link these domains.Learn more about ENSCO.Position DescriptionENSCO Inc. is on the lookout for a talented SATCOM Requirements Systems Engineer to join our dynamic systems engineering team. This pivotal role involves defining the next generation of space communication systems tailored to support the United States Space Force (USSF) satellite communications. The selected candidate will engage in Systems Engineering & Integration (SE&I) activities within a multidisciplinary and collaborative setting. Key responsibilities include interfacing and working alongside SE&I team members, contractors, government personnel, and USSF representatives. The candidate will lead and facilitate multiple working groups, driving technical discussions, identifying risks and requirement gaps, creating briefings, documenting action items, and taking meeting minutes.The MILSATCOM Systems Engineering, Integration, and Test (MSEIT) initiative provides state-of-the-art SE&I support for the US Space Force's Space Systems Center (SSC). Our mission is to assist the Space Force in acquiring advanced satellite communications systems that offer global secure, survivable, and protected communications for our nation’s military personnel. We are looking for innovative individuals who thrive in a collaborative environment, utilizing the latest tools and methodologies to address the complexities of integrating advanced space and ground communications systems. This position is based in El Segundo, CA, and includes various responsibilities, such as:Supporting Model-Based Systems Engineering (MBSE) activities to facilitate the development and maintenance of technical requirements.

About Matter IntelligenceAt Matter Intelligence, we are pioneering the future of vision AI by integrating a groundbreaking sensor capable of interpreting molecular chemistry, temperature, and 3D shape with a Large World Model that serves as the most advanced intelligence engine for understanding the physical world. Our innovation goes beyond mere imagery; it comprehensively analyzes data from a single pixel, which we refer to as Superintelligent Vision.Our team is a powerhouse of expertise, having delivered cutting-edge technologies to Mars for NASA/JPL, developed sophisticated sensors for U.S. defense, and constructed foundational infrastructure at OpenAI. We are now venturing into the development of next-generation sensing systems for both space and airborne applications.About the RoleWe are on the lookout for a Senior Optical Systems Engineer who will take charge of the holistic optical performance of intricate electro-optical payloads, overseeing all phases from initial concept and system trades to design, integration, testing, and, where relevant, on-orbit or airborne operations.In this pivotal role, you will serve as the technical authority for optical system performance, adeptly converting mission objectives into optical specifications, guiding the implementation of designs, verifying performance both analytically and experimentally, and facilitating calibration and operations.Collaboration will be key, as you'll engage closely with systems engineering, optomechanical, thermal, electronics, AI&T, and data teams, along with external suppliers and partners.Key ResponsibilitiesOptical System Architecture & TradesDefine and take ownership of optical system architectures for both spaceborne and airborne remote-sensing payloads.Translate mission objectives into precise optical requirements, including resolution, SNR, spectral performance, and stability.Lead comprehensive system-level optical trades regarding aperture, altitude, field of view, spectral bandpass, and detector selection.Support mission-level performance modeling, encompassing radiometric, geometric, and image-quality budgets.Optical Performance AnalysisCreate and maintain thorough optical performance models.Conduct and review analyses including:Radiometry and SNR assessmentsMTF and image quality evaluationsSpectral response and bandpass performance evaluationsSensitivity analyses related to alignment, thermal effects, and structural variations.

Role Overview Mattel, Inc. is seeking a Senior IT Project Manager focused on Payroll Systems in El Segundo. This position leads IT projects that improve and update payroll processes, with a strong emphasis on efficiency and compliance with current industry standards. What You Will Do Oversee projects aimed at enhancing payroll systems and workflows Work closely with stakeholders to understand requirements and priorities Design and implement solutions that support payroll operations Ensure all payroll systems meet regulatory and industry compliance Drive improvements that support both business needs and employee experience