Lead Principal FPGA Engineer

About Radiant IndustriesRadiant Industries, headquartered in El Segundo, California, is at the forefront of innovation in the energy sector, pioneering the development of the world's first mass-produced portable nuclear microreactors. Our flagship reactor, Kaleidos, is a groundbreaking 1-megawatt, fail-safe microreactor designed for mobility and can operate …

Join cx2 as an FPGA Engineer, where you will design, develop, and implement advanced FPGA solutions for cutting-edge applications. You will collaborate with a dynamic team of engineers and contribute to innovative projects that push the boundaries of technology.

About Radiant IndustriesRadiant Industries is an innovative startup headquartered in El Segundo, California, pioneering the development of the world’s first mass-produced, portable nuclear microreactors. Our inaugural reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor designed for transportation to any location requiring power, capable of operating for up to 5 years without refueling. This cutting-edge technology offers a sustainable alternative to conventional diesel generators, providing essential power support for critical infrastructures such as hospitals, data centers, remote sites, and military bases. Since our inception in 2020, we have adopted a unique approach that combines advanced software engineering with proven materials to safely deliver factory-built microreactors. We are set to commence testing our first reactor at the Idaho National Laboratory next year, with initial customer deliveries projected to begin in 2028.Position OverviewWe are on the lookout for a motivated Senior FPGA Engineer to join our Embedded Systems team. In this role, you will play a crucial part in the design, development, and validation of FPGAs utilized in the reactor's instrumentation and control systems, focusing on safety-critical applications, sensor and actuator management, and communication systems. Collaboration with hardware engineers, embedded software engineers, and test engineers will be essential to create integrated designs that fulfill the operational requirements for monitoring and controlling fission reactors. Your contributions will be pivotal in testing our first commercial reactor design in over half a century.This position is full-time and based onsite in El Segundo, California.

Varda Space Industries builds commercial space infrastructure, including in-orbit pharmaceutical manufacturing and reentry capsules designed for cost efficiency. The company specializes in products enabled by microgravity, such as advanced fiber optics and pharmaceuticals, aiming to bring the benefits of space manufacturing to people on Earth. Founded in 2021 by Will Bruey and Delian Asparouhov, Varda’s team draws on backgrounds from SpaceX, Blue Origin, major pharmaceutical firms, and Silicon Valley. The company is supported by Khosla Ventures, Lux Capital, and Founders Fund. Headquarters and production are based in El Segundo, California, with offices in Washington, DC, and Huntsville, Alabama. Role overview The Lead Principal Mechanisms Engineer for Payloads leads the design and development of complex electromechanical flight hardware. This hardware must operate reliably in orbit, withstand hypersonic reentry, and return to Earth for further analysis and development. This position shapes the payload architecture for missions focused on pharmaceutical manufacturing and hypersonic reentry testbeds. The engineer guides projects from initial concept through detailed design, ensuring mission requirements are met throughout each stage.

We are seeking a highly skilled and innovative Principal Software Engineer to join our dynamic team at Ensco Inc. In this pivotal role, you will leverage your extensive experience in software engineering to lead complex projects, design scalable systems, and mentor junior engineers. Your contributions will be crucial in enhancing our software solutions and driving technological advancements within the organization.

About VardaUnlocking the potential of Low Earth Orbit. Varda is at the forefront of developing commercial space infrastructure, from pharmaceutical processing in orbit to cost-effective reentry capsules.Our innovations are paving the way for products that can only be manufactured in space, ranging from lifesaving medications to advanced fiber optics. By creating essential products and infrastructure, Varda aims to bridge the gap between the orbital economy and life on Earth, expanding humanity’s economic horizons.Our talented team is made up 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 top-tier investors including Khosla Ventures, Lux Capital, Founders Fund, Caffeinated Capital, General Catalyst, and Also Capital.Based in El Segundo, California, Varda operates out of advanced offices and production facilities where we design, integrate, and test our vehicles and technologies. We also maintain offices in Washington, DC, and Huntsville, AL.Join Varda and contribute to building a thriving in-space ecosystem.At Varda, we believe that manufacturing in zero-gravity is essential for unlocking new materials. We are actively developing spacecraft and technologies to make this vision a reality and expand human manufacturing capabilities.

Radiant Industries designs portable nuclear microreactors in El Segundo, CA. The company's flagship product, Kaleidos, is a 1-megawatt microreactor intended for easy transport and long-term power delivery, up to five years without refueling. Kaleidos aims to serve hospitals, data centers, remote operations, and military sites as a cleaner alternative to diesel generators. Radiant was founded in 2020 and plans to test its first reactor at Idaho National Laboratory this summer, with initial customer shipments scheduled for 2028. Role overview This Lead Principal Electrical Engineer role centers on PCB design for terrestrial reactor control systems, with future potential for space-based applications. The position requires a technical leader to define electrical architecture, set design standards, and guide the complete development cycle for high-reliability, low-noise printed circuit boards. Work includes requirements gathering, schematic capture, layout, validation, and deployment. What you will do Lead electrical architecture for reactor control systems Establish and maintain design standards for PCB development Drive architectural decisions for mixed-signal, high-speed, and power distribution designs Oversee the full development process of printed circuit boards, from requirements through deployment Prioritize signal integrity and low-noise performance for data acquisition and real-time processing Mentor and support other electrical engineers on the team Contribute to the technical direction of Radiant’s hardware platform Key focus areas Full-stack PCB development Mixed-signal circuit design High-speed interface design Power distribution and management Signal integrity for critical control systems

Radiant Industries is on the lookout for a Lead Electrical Motor Design Engineer to spearhead the architecture, technical direction, and implementation of high-speed alternators and primary loop motors for our cutting-edge nuclear-driven power generation systems. This pivotal role will oversee the electric machine design function that is essential for the commercialization of the world's first mass-produced nuclear reactors.In this position, you will establish a technical vision for motor design while steering efforts in structural, thermal, and system integration. As a player-coach, you will actively engage in design work while mentoring a team of engineers to ensure the delivery of safe, reliable, and production-ready generator systems.This hands-on technical leadership position comes with substantial cross-functional impact.

Join BryceTech as a Lead Software Engineer, where you will take charge of cutting-edge projects in the space industry. You will lead a talented team of engineers, driving innovation and excellence in software development. Your expertise will help shape the future of our space technology solutions.

Lead Nuclear EngineerRadiant Industries is on the lookout for a dynamic and technically proficient leader to head our nuclear design and analysis team, specializing in core physics, shielding, instrumentation & controls, and reactor operations. In this pivotal role, you will guide a talented team through the intricate design, development, and testing phases of the innovative Kaleidos microreactor project. You will be responsible for managing schedules, budgets, hiring, and the successful execution of nuclear-related objectives, with a strong emphasis on safety, reliability, portability, and performance. The ideal candidate thrives in interdisciplinary settings, collaborates effectively with engineers and leadership, possesses a deep understanding of engineering principles, excels in creative problem-solving, and is passionate about mentoring and inspiring engineers to achieve their best work. Join us in our mission to bring the first portable nuclear microreactor to market.Key Responsibilities:Lead a multidisciplinary team of nuclear engineers focused on safety analyses, core performance, shielding—including operational dose, activation, shutdown dose—instrumentation & controls, operations, and thermal-hydraulics.Recruit, mentor, and develop a high-performing team of nuclear engineers.Oversee nuclear engineering projects from inception to completion, including requirements gathering, iterative design, simulation pipeline development, and regulatory deliverables.Collaborate with the regulatory team to ensure compliance with nuclear industry standards and requirements.Provide mentorship to engineers through constructive feedback and coaching.

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 Vardaspace as a Principal of Accounting and Finance, where you will play a pivotal role in shaping the financial future of our organization. As a key leader, you will oversee financial strategies, ensure compliance with regulations, and drive financial performance.

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 product, Kaleidos, is a revolutionary 1-megawatt microreactor designed for transportability and can operate continuously for up to five years without the need for refueling. This innovative solution aims to replace conventional diesel generators, providing essential energy support for hospitals, data centers, remote locations, and military bases. We leverage cutting-edge software engineering practices to deliver safe, factory-built microreactors utilizing established, high-quality materials. Established in 2020, Radiant Industries is gearing up to test its inaugural reactor at the Idaho National Laboratory next year, with initial customer deliveries set to commence in 2028.Position OverviewWe are looking for an accomplished Technical Lead DevOps Engineer to spearhead our software infrastructure, deployment, and automation initiatives. In this pivotal role, you will collaborate with teams across the organization, working closely with the software development team to design scalable, secure, and resilient DevOps practices, tools, and systems. The infrastructure you oversee, the pipelines you construct, and the analytical tools you develop will be integral to the design, operation, and analysis of our groundbreaking reactor, which represents a major advancement in nuclear technology over the past 50 years. This is a unique opportunity to establish a robust foundation for our production environment.Key Responsibilities:Architect, implement, and maintain infrastructure across AWS and on-premises Linux environments, ensuring high availability, security, and optimal performance for mission-critical systems.Oversee and enhance Kubernetes and Docker container orchestration to efficiently execute simulations, internal tools, and engineering applications at scale.Design, build, and optimize CI/CD pipelines using Git, Argo, and other automation tools to facilitate rapid and reliable software delivery across engineering teams.Develop internal tools that enhance build systems, testing frameworks, deployment automation, and developer environments.Create computational analysis tools for our digital twin platform, implementing automated profiling and monitoring to optimize high-performance computing workloads for reactor modeling.Implement and manage infrastructure-as-code practices using Terraform or similar tools to ensure reproducible, version-controlled infrastructure deployments.Establish and maintain observability, monitoring, and logging infrastructure to guarantee system reliability and performance.

Role overview Radiant Industries is hiring a Principal Turbomachinery Engineer to act as the Responsible Engineer for advanced turbomachinery within a nuclear-driven power generation system. The focus is on the mechanical design, reliability, and performance of the main rotating assembly in a 1MW closed-loop Brayton cycle. This position requires deep technical ownership of complex, high-speed rotating equipment. What you will do Lead the mechanical architecture for high-speed rotating equipment that operates under extreme temperatures, pressures, and rotational speeds. Guide technical work in rotor dynamics, structural integrity, bearings, seals, and system integration. Collaborate with electrical, thermal, and manufacturing teams to ensure integration across disciplines. Maintain end-to-end responsibility from concept through production, emphasizing technical rigor and sound engineering judgment. Requirements Extensive experience designing and analyzing turbomachinery, with a focus on high-speed rotating hardware. Strong knowledge of rotor dynamics, structural assessment, bearing and seal selection, and system-level integration. Hands-on approach with a track record of delivering production-ready hardware. Ability to work effectively with specialists in electrical, thermal, and manufacturing engineering. Location This position is based in El Segundo, CA.

Join Mattel, Inc. as a Principal Solution Architect specializing in Product Lifecycle Management (PLM). In this pivotal role, you will leverage your expertise to design and implement innovative solutions that enhance our product development processes. Collaborate with cross-functional teams to drive strategic initiatives and ensure the seamless integration of technology within our operations.

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.

About Matter IntelligenceMatter Intelligence is at the forefront of developing cutting-edge airborne and spaceborne sensing systems that integrate precision optics, innovative thermal architectures, spacecraft engineering, and AI-enhanced data analysis. Our advanced systems function effectively in challenging orbital and airborne environments, unlocking new possibilities for Earth observation capabilities.With a proven track record of delivering technologies to Mars for NASA/JPL, designing advanced sensors for U.S. defense, and establishing core infrastructure at OpenAI, our team is now focused on creating the next generation of sensing systems for both space and airborne applications.About the RoleWe are looking for a Senior Thermal Engineer who will take charge of the thermal architecture, analysis, and verification of our precision optical payloads and spacecraft systems. This role encompasses ownership of thermal performance from the initial concept stage through integration, testing, and, where applicable, on-orbit operations.You will be responsible for developing and maintaining intricate thermal models, steering thermal trade studies, supporting STOP performance, and collaborating closely with systems, optomechanical, electronics, and AI & T teams to ensure that flight hardware meets all performance requirements throughout every mission phase.This is a hands-on, analytical, and leadership-focused role suited for an engineer seeking significant technical ownership over hardware that operates in flight.Key ResponsibilitiesThermal Architecture & DesignDefine and lead the thermal architecture for optical payloads and spacecraft subsystems.Design both passive and active thermal control solutions, including radiators, heat pipes, thermal straps, insulation, and cryogenic interfaces.Translate mission-level thermal requirements into subsystem- and component-level designs.Support thermal trades to effectively balance performance, mass, power, and complexity.Thermal Modeling & AnalysisDevelop, maintain, and correlate detailed thermal models using industry-standard tools (e.g., Thermal Desktop, SINDA/FLUINT).Conduct steady-state and transient thermal analyses across all mission phases (launch, ascent, on-orbit hot/cold cases, safe modes).Perform in-depth thermal analysis of precision optical elements (mirrors, mounts, focal plane assemblies), including thermo-elastic distortion.Execute thermal assessments at the circuit card and chassis level.

Join Saviynt as a Principal Software Engineer focused on Application Access Governance!At Saviynt, we are on a mission to empower organizations through our cutting-edge identity authority platform, designed to enhance security while enabling seamless digital transformation. Our Enterprise Identity Cloud provides unmatched visibility and control, ensuring your organization can confidently navigate the complexities of cyber risk while providing users with the access they need to thrive.Key Responsibilities:- Engage in thorough requirements analysis to inform software development.- Architect and implement secure, scalable, multi-tenant software solutions compatible with major cloud platforms, including AWS and Azure.- Collaborate with cross-functional teams to create innovative software designs and architecture.- Develop state-of-the-art enterprise identity cloud solutions and ensure robust testing and deployment of applications and systems.- Revise, update, refactor, and debug existing code to enhance performance and security.- Take charge of initiating projects from the ground up while managing and optimizing existing services.- Document processes throughout the software development lifecycle and provide expert-level technical support.- Adhere to agile methodologies and principles to drive project success.

About UsPicogrid is a pioneering venture-backed defense technology firm dedicated to bridging the long-standing gap between cutting-edge technology and the pressing needs of national security. Our commitment is to establish vital infrastructure that integrates sensors, autonomy, and operators, with our technology already in active deployment across global operations. Our mission is to provide an operational edge to safeguard the United States and its allies.Role OverviewWe are seeking a proactive Frontend Tech Lead to take ownership of the Orion frontend, focusing on base defense and fleet management solutions built on the Legion platform. This high-stakes, autonomous position will enable you to design a real-time geospatial user interface that seamlessly incorporates live video feeds, maps, and controls for intricate defense systems. As the principal technical steward for Orion’s frontend, you will collaborate closely with product managers, designers, and customers to transform vague requirements into deliverable products. While the role is predominantly frontend-focused (React / TypeScript), you should also be prepared to engage with backend technologies as necessary.

Role Overview Picogrid is hiring a Strategy & Business Operations Lead in El Segundo, CA. This position shapes company strategy and strengthens operational effectiveness. The role works closely with teams across the business to develop strategies, improve processes, and support overall business performance. What You Will Do Collaborate with different departments to identify and implement strategic initiatives Analyze and refine business processes to improve efficiency Support company growth by driving operational improvements Contribute to projects that deliver value to clients