Performance Testing Engineer with Apache JMeter Expertise

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 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.

Join Vardaspace as a Thermal Hardware Engineer specializing in Passive & Active Control Systems. In this role, you will be at the forefront of innovative thermal management solutions, ensuring the efficiency and reliability of our cutting-edge technologies. Collaborate with a dynamic team to design, develop, and test thermal hardware components that meet rigorous performance standards.

Join Radiant Industries as a Lead Test Engineer for Power Generation Systems, where you will spearhead the strategy and execution of testing for our innovative power generation systems, encompassing turbomachinery, heat exchangers, controls, and primary cooling systems. This position is perfect for a hands-on technical leader who takes pride in developing test infrastructures, managing complex hardware operations, and mentoring engineering talent while being actively engaged in daily testing activities.In this role, you will take charge of the testing development for our high-speed machinery and build our testing facilities from the ground up. These infrastructures will be pivotal for rapid design iterations, focusing on evaluating vibration, performance, thermal behavior, and system reliability, ultimately facilitating a smooth transition into production acceptance testing. You will collaborate closely with mechanical design, analysis, manufacturing, and operations teams to validate and ensure that turbomachinery designs meet production standards.

Join Matter Intelligence as a Test Engineer and be a pivotal part of our innovative team. In this role, you will engage in designing, implementing, and executing test plans to ensure the highest quality of our products. Your expertise will contribute to enhancing our systems and improving user experiences.

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.

Director of Test EngineeringRadiant Industries, located in El Segundo, CA, is a pioneering startup focused on developing the world's first mass-produced, portable nuclear microreactors. Our flagship reactor, Kaleidos, features a 1-megawatt failsafe design that can be deployed anywhere power is required, functioning for up to five years without refueling. Our innovative portable nuclear power solutions aim to replace traditional diesel generators, offering vital support for healthcare facilities, data centers, remote locations, and military installations. By leveraging modern software engineering techniques, Radiant is committed to creating safe, factory-built microreactors utilizing existing, reliable materials. Founded in 2020, we are poised to test our inaugural reactor at the Idaho National Laboratory next year, with first customer deliveries anticipated in 2028.Position OverviewWe are looking for a dynamic and experienced Director of Test Engineering to take charge of the design, construction, and implementation of our developmental and qualification test programs aimed at validating our reactor systems and components. This hands-on leadership role involves establishing a dedicated service organization focused on designing test setups, developing instrumentation and data acquisition systems, executing test campaigns, and providing high-quality data and reports to our engineering teams.In this role, you will be pivotal in establishing standardized methods, tools, and infrastructure to enable Radiant to test hardware at the speed required by our development timeline. The testing organization will serve as an internal resource for design engineering teams, ensuring responsiveness and ease of collaboration.Key ResponsibilitiesLead the comprehensive execution of developmental, qualification, and acceptance test campaigns for reactor components and subsystems.Design and construct test setups, ranging from simple bench-level fixtures to intricate thermal-hydraulic loop rigs.Develop and uphold test plans and procedures that outline objectives, instrumentation requirements, success criteria, data deliverables, and safety controls.Oversee test campaigns, including hands-on operation of test equipment and management of technicians.Provide data packages and test reports to engineering teams with the quality and traceability necessary for design decisions and regulatory compliance.Design and implement instrumentation systems, including sensor selection, signal conditioning, DAQ hardware configuration, and wiring.

The ESS Test and Evaluation Engineer role at Ensco, Inc. offers an exciting opportunity to contribute to the field of engineering in a dynamic and innovative environment. You will be responsible for developing, implementing, and executing test plans, ensuring that all systems meet rigorous quality standards. Your expertise in testing methodologies will be essential in evaluating system performance and identifying necessary improvements.

Senior Automation & Controls EngineerJoin Radiant Industries as a Senior Automation and Controls Engineer, where your expertise will be instrumental in collaborating with our design and manufacturing teams. You will be responsible for the design, construction, and implementation of automated production and testing equipment crucial for the mass production and refueling of our innovative microreactor technology.Key Responsibilities:Lead the design, development, and execution of automation projects, including ideation of equipment, machine commissioning, and conducting quality and reliability studies before transitioning projects to operational teams.Develop, write, and troubleshoot PLC code focused on creating organized, structured, and maintainable code suitable for high-volume manufacturing environments.Ensure factory safety and reliability by implementing ANSI/RIA R15.06 and OSHA compliant systems for robots, gantries, conveyors, and other manufacturing equipment.Design electrical systems that adhere to NEC, NFPA, and UL508A standards.Select and size electrical and electromechanical components, including servo motors and controllers.Oversee the assembly of electrical cabinets, field wiring, as well as pneumatic and fluid plumbing.Create user-friendly HMI screens that simplify the operation and troubleshooting of complex machinery.Required Qualifications:Bachelor’s degree in Engineering, Physics, or Computer Science from an accredited institution.A minimum of 4 years of experience in designing and commissioning automation and controls systems for industrial applications.Preferred Qualifications:Master’s degree in an engineering discipline.Experience in process integration and electromechanical/mechatronic systems.Familiarity with various robotic welding applications (Kuka, ABB & Fanuc).Proficiency in robot and PLC simulation.Experience with electrical schematic CAD software such as Zuken E3.Knowledge of programming languages such as C#, .NET, Python, and/or SQL.Experience in PLC programming, preferably with Beckhoff TwinCat 3.

Join CX2, a pioneering defense technology firm dedicated to achieving spectrum superiority for the United States and its allies. Our cutting-edge, AI-integrated hardware and software solutions are designed to detect, disrupt, and safeguard the electromagnetic spectrum across land, air, sea, and space.We are currently on the lookout for a proactive Hardware Test Engineer to spearhead the development and execution of testing protocols for our hardware products in a dynamic manufacturing setting. In this role, you will be instrumental in validating product performance, reliability, and compliance by designing test procedures, fixtures, and automated testing systems. This position will support both new product introductions (NPI) and high-volume production efforts at our headquarters in El Segundo, CA.

We are looking for a skilled Hardware Test Engineer to join our dynamic team at usm2. This is an exciting opportunity for individuals who are passionate about testing and verifying hardware systems. You will be responsible for developing and executing test plans, troubleshooting hardware issues, and ensuring product quality meets the highest standards.

About VardaLow Earth orbit is open for business. Varda is at the forefront of developing commercial space infrastructure, facilitating everything from in-orbit pharmaceutical manufacturing to the creation of reliable and cost-effective reentry capsules.Our innovations will enable the production of life-saving pharmaceuticals and advanced fiber optics that can only be manufactured in space. We are committed to transforming the orbital economy by building both the products and the infrastructure necessary for space to directly enhance life on Earth. Our mission is to broaden the economic horizons of humanity.Our team is uniquely equipped to achieve this mission, consisting of industry veterans from SpaceX, Blue Origin, major pharmaceutical companies, and Silicon Valley. Founded in January 2021 by Will Bruey and Delian Asparouhov, Varda has received substantial backing from top-tier investors, including Khosla Ventures, Lux Capital, Founders Fund, Caffeinated Capital, General Catalyst, and Also Capital.Headquartered in El Segundo, California, Varda operates a state-of-the-art production facility where our vehicles, equipment, and materials are designed, integrated, and tested. We also maintain offices in Washington, DC, and Huntsville, AL.Join Varda to contribute to the creation of a thriving in-space ecosystem.About This RoleAs an Integration and Test Engineer, you will play a pivotal role in overseeing vehicle systems integration and testing processes. Your responsibilities will encompass the full spectrum of integration and testing activities, ensuring that our systems function flawlessly to meet the high standards of our ambitious mission.

For over five decades, ENSCO Inc. has been at the forefront of delivering innovative engineering, scientific, and advanced technology solutions to both government and private sectors globally.Our commitment to excellence drives us to develop and implement sophisticated technologies that ensure mission success. We specialize in systems engineering, integration, and advanced technology services aimed at enhancing the safety, security, and resilience of critical operations across terrestrial, aerial, and space domains, as well as the information systems that interconnect them.Discover more about ENSCO.Position OverviewENSCO Inc. is on the lookout for a talented SATCOM Test & Evaluation Engineer. Join our dynamic systems engineering team as we define the future of space communication systems that support the US Space Force (USSF) satellite communications. This role involves collaborating in a multidisciplinary environment to support Systems Engineering & Integration (SE&I) activities.The ideal candidate will interface with SE&I team members, contractors, government personnel, and USSF representatives, taking a lead role in working groups to facilitate technical discussions, identify and mitigate risks, address requirement gaps, create briefings, track action items, and document meeting minutes.As part of the MILSATCOM Systems Engineering, Integration, and Test (MSEIT) initiative, we provide cutting-edge SE&I support to the USSF’s Space Systems Center (SSC). Our mission is to aid the Space Force in acquiring state-of-the-art satellite communications systems that provide secure, survivable, and protected communications for our nation's military personnel. We seek individuals who thrive in collaborative settings and are eager to tackle the complexities of integrating advanced space and ground communication systems. This role is based on-site in El Segundo, CA.Key Responsibilities include, but are not limited to:Developing Test and Evaluation strategies, creating Test and Evaluation Master Plan (TEMP) content, and formulating verification plans.

Join Matter Intelligence as an Early Career Test Engineer specializing in advanced sensor technology. In this dynamic role, you will collaborate with cross-functional teams to design, implement, and execute tests that ensure the reliability and performance of our cutting-edge sensor products. You will have the opportunity to contribute to innovative projects that shape the future of technology.

About VardaLow Earth orbit is open for business. Varda is pioneering the creation of commercial space infrastructure, ranging from in-orbit pharmaceutical manufacturing to efficient reentry capsules.Our innovative approach aims to manufacture products in space that can significantly enhance life on Earth, from critical pharmaceuticals to advanced fibers. Varda is at the forefront of transforming the orbital economy through the development of both the necessary products and infrastructure. Our mission is to broaden the economic horizons of humanity.Our exceptional team, consisting of veterans from SpaceX, Blue Origin, leading pharmaceutical firms, and Silicon Valley, is well-equipped to achieve this vision. Founded in January 2021 by Will Bruey and Delian Asparouhov, Varda has garnered substantial investment from notable investors including Khosla Ventures, Lux Capital, Founders Fund, Caffeinated Capital, General Catalyst, and Also Capital.With our headquarters in El Segundo, California, we have a dedicated office and production facility where we design, integrate, and test our vehicles and technologies. Additional offices are located in Washington, DC, and Huntsville, AL.Join Varda to contribute to the establishment of a vibrant in-space economy.

We are seeking a dynamic Systems Integration Engineer to join our innovative team at Radiant Industries. In this role, you will be responsible for designing, implementing, and optimizing integrated systems that enhance operational efficiency and performance. You will collaborate closely with cross-functional teams to ensure seamless integration of complex systems.As a Systems Integration Engineer, you will have the opportunity to work on exciting projects that push the boundaries of technology and innovation. Your expertise will be essential in analyzing system requirements, developing integration strategies, and troubleshooting any issues that arise.

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 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.