Program Development Scientist at Rainmaker | El Segundo, CA

Rainmaker develops cloud seeding systems designed to address water scarcity and complex weather patterns. The team integrates radar validation, durable unmanned aerial systems (UAS), numerical weather modeling, and environmentally conscious cloud seeds to create a full solution for precipitation enhancement. The Senior Aero-Mechanical Engineer position is based in El Segundo, CA, within the Engineering division. Projects include work on UAS platforms, payload dispersion systems, and both in-situ and remote sensing technologies. The environment encourages technical initiative and offers the chance to directly influence operational capabilities. Role overview Collaborate with cross-functional teams to design and refine aerodynamic configurations for aircraft operating in demanding weather conditions. Conduct computational fluid dynamics (CFD) simulations to assess aerodynamic performance and behavior. Design, optimize, and review vehicle layouts to meet various operational requirements and endurance targets. Participate in wind tunnel testing and interpret data to validate CFD predictions. Support the creation and implementation of new aerodynamic methods. Work with other engineering disciplines to ensure aerodynamic designs are practical for manufacturing and can progress from concept to prototype.

About Rainmaker Rainmaker develops cloud seeding technology to help address water scarcity and challenging weather conditions. The team works with radar validation, weather-resistant Unmanned Aerial Systems (UAS), advanced numerical weather modeling, and eco-friendly cloud seeds to build solutions that enhance precipitation. The Engineering Team The Engineering group focuses on improving UAS platforms, dispersion payloads, and both in-situ and remote sensing systems. Team members see the direct impact of their work on Rainmaker’s operations. Role Overview This Electrical Engineering Internship is based in El Segundo, CA. The intern will work closely with the Lead Electrical Engineer, contributing to the design and development of key subsystems for UAS platforms. What You Will Do Rapid Hardware Prototyping: Design and build functional prototypes for UAS subsystems, making iterative improvements based on flight tests and mission requirements. PCB Design: Create schematic diagrams and layouts for systems such as power distribution, sensor interfaces, payload controllers, and communication modules, using tools like Altium or KiCad.

Rainmaker builds cloud seeding technology aimed at tackling water scarcity and unpredictable weather. The company’s approach brings together radar validation, weather-hardened unmanned aerial systems (UAS), advanced weather modeling, and environmentally friendly cloud seeding materials to form a full precipitation enhancement system. The Mechanical Engineering Intern will join the engineering team in El Segundo, CA. This position works hands-on with UAS, payload dispersion systems, and both in-situ and remote sensing equipment. Reporting to the Lead Mechanical Engineer, the intern will help develop essential subsystems for Rainmaker’s UAS platform, directly supporting operational and mission objectives. What you will do Hardware prototyping: Design and build working prototypes for UAS subsystems. Update and refine designs based on results from flight tests and mission requirements. Test fixture design: Assist in conceptualizing, designing, building, and running test fixtures to evaluate prototype components. Finite Element Analysis (FEA): Collaborate with mechanical engineers to define loading and boundary conditions, set up and run FEA studies, and confirm results. Documentation: Prepare technical documentation and generate fabrication and assembly data for manufacturing partners. Collaboration: Work with electrical and software engineers, along with other team members, to deliver integrated solutions.

Rainmaker tackles water scarcity and weather challenges by developing cloud seeding systems. The team blends radar validation, rugged unmanned aerial systems (UAS), advanced weather modeling, and environmentally safe cloud seeding materials to help increase precipitation. As a Senior Electrical Engineer based in El Segundo, CA, this role works at the heart of Rainmaker’s operations. The position focuses on UAS platforms, dispersion payloads, and advanced sensing equipment, shaping the electrical backbone of the company’s core systems. Collaboration with a skilled engineering group is central to this position, and contributions have a direct, visible impact on project outcomes. Key Responsibilities System Design: Lead the architecture and design of complex electrical systems for hardware platforms. Define requirements, interface specifications, and integration strategies at the system level. Rapid Hardware Prototyping: Build and refine functional hardware prototypes, iterating quickly based on test results and operational feedback. PCB Design: Develop schematics and layouts for power distribution, sensor interfaces, payload controllers, and communication modules using Altium. Board Bringup and Testing: Assemble, debug, and validate new printed circuit boards. Create testing procedures and fixtures to ensure reliable performance during flight operations. Documentation: Prepare detailed technical documentation and fabrication data for manufacturers, supporting quality control and clear communication.

Radiant Industries is on the forefront of innovative engineering solutions, and we are looking for a highly skilled Senior Mechanical Engineer (Structures) to join our team. In this pivotal role, you will design and develop critical structural components within our Kaleidos project, tackling unique challenges to create efficient and reliable structures that can withstand extreme temperature environments and adhere to volumetric constraints.As a Senior Mechanical Engineer, you will play a crucial role in the advancement of the first new commercial reactor design in over 50 years, set to launch by 2026. Your responsibilities will include conducting trade studies, material selection, detailed structural analysis, assembly, integration, and testing.

About Rainmaker Rainmaker works to address water scarcity using advanced cloud seeding technology. The team combines radar systems, unmanned aircraft, and a weather awareness platform to help manage natural resources and improve freshwater availability. By increasing precipitation, Rainmaker supports ecological restoration, aquifer recharge, and lowers wildfire risks. Based in El Segundo, CA, Rainmaker is part of a growing deep-tech community. The company values rapid iteration and practical engineering solutions. Role Overview: Data Scientist in Sales This Data Scientist will work closely with Business Development and Program Development teams. The focus: analyze and communicate the economic benefits of Rainmaker's initiatives, especially the value of increased snowpack and water resources. The role also involves building data infrastructure that connects Rainmaker's operations to real-world outcomes for agriculture, municipalities, utilities, and environmental groups. The position blends environmental science, economics, and data storytelling. Expect to work with varied datasets, weather, hydrology, commodity prices, land use, and economic indicators, to deliver benefit analyses that help form partnerships and support program expansion. Key Responsibility Economic Benefit Modeling: Build and refine models that measure the financial impact of added precipitation for sectors like agriculture, hydropower, municipal water supply, wildfire mitigation, and ecosystem services. Location This position is based in El Segundo, CA.

About UsPicogrid is a pioneering defense technology company backed by venture capital, dedicated to closing the longstanding gap between cutting-edge technology and the essential requirements of national security. We are currently developing critical infrastructure that integrates sensors, autonomy, and operators, with our innovative solutions actively utilized in operations globally. Our objective is to provide an operational edge to safeguard the United States and its allies.Position OverviewWe are on the lookout for a Senior Electrical Engineer who will play a key role in designing, constructing, and launching mission-critical hardware systems that bolster U.S. defense initiatives. This hands-on position resides at the crossroads of embedded systems, mechanical integration, and high-reliability design, giving you ownership over vital electrical components that drive connected autonomous systems in the field.You will manage the complete design lifecycle of various hardware products: from rapid prototyping and validation to production and deployment in the field. Your responsibilities extend beyond the bench; you will work closely with software, mechanical, and deployment teams to guarantee that systems function reliably in challenging environments ranging from deserts to flightlines and active field operations. Anticipate rapid iterations and minimal barriers between your engineering contributions and the end user, making a tangible impact on real-world missions.

Location: El Segundo, CA | Department: Engineering | Employment Type: Intern-Fulltime Onsite | Start: ImmediateJoin Rainmaker as we revolutionize cloud seeding technology to combat water scarcity and adverse weather conditions. Our team integrates cutting-edge radar validation, durable unmanned aerial systems (UAS), advanced numerical weather modeling, and eco-friendly cloud seeding materials to deliver impactful precipitation enhancement solutions.As an intern within our Engineering team, you will engage with innovative projects related to our UAS, payload dispersion systems, and both in-situ and remote sensing technologies. This is a remarkable opportunity for you to thrive in a dynamic environment where your contributions will have a direct influence on our operational achievements. In this role, you will work closely with the Lead Mechanical Engineer and assist in developing critical subsystems for our UAS platform, enabling you to gain hands-on experience and insight into the engineering processes that drive our mission.

We are seeking a talented Senior Software Engineer to join our dynamic team at AMCA in El Segundo, California. In this role, you will be responsible for developing innovative software solutions that enhance our product offerings and drive business success. You will work closely with cross-functional teams to identify and implement new technologies that align with our strategic objectives.The ideal candidate will have a passion for technology, a strong problem-solving mindset, and a desire to contribute to high-impact projects. If you are looking to take your career to the next level in a collaborative and fast-paced environment, we would love to hear from you!

At Voyager Technologies, we are at the forefront of defense, national security, and space technology, dedicated to developing groundbreaking solutions that are essential for our missions. We tackle intricate challenges to pave the way for human advancement, enhance national security, and safeguard vital assets, driving the competition for technological and operational excellence from the ground to the cosmos.Be a Part of the Future: Join Voyager TechnologiesThe future is shaped by those who dare to create it. At Voyager Technologies, we are crafting innovations that safeguard lives, extend boundaries, and prepare us for what lies ahead. We seek individuals who are driven to solve problems, build systems, adapt to challenges, and lead the way. These roles demand courage and determination.Join a vibrant culture where innovation flourishes, curiosity is celebrated, and your contributions make a genuine impact. We are a collective of doers, thinkers, and builders, united by a common goal and grounded in reality.If you are ready to apply your expertise where the stakes are high and the mission transcends individual achievements, forge the future with Voyager.We are currently looking for a Senior Software Engineer to join our multidisciplinary team of machine learning engineers, software developers, and algorithm specialists who are developing software for geospatial analytics, focusing on the exploitation of Synthetic Aperture Radar (SAR) imagery.The Senior Software Engineer at Voyager Technologies will be responsible for the architecture, design, and leadership in the development of software systems that process, manage, and visualize extensive geospatial datasets to support essential capabilities for U.S. government and other clients.In this role, your key responsibilities will include:Designing, implementing, and owning software systems for the processing, management, and distribution of geospatial data, particularly SAR imagery.Building scalable data pipelines and backend services to support geospatial data workflows.Developing tools and services for geospatial visualization, analysis, and data distribution.Designing and implementing database architectures, schemas, and data models to support geospatial datasets.Contributing to system architecture decisions involving service design, data pipelines, and software infrastructure.Integrating geospatial services and APIs into operational software systems.Collaborating with algorithm developers and data scientists...

CX2 is an innovative defense technology company dedicated to achieving spectrum dominance for the United States and its allies. Our cutting-edge, AI-driven hardware and software platforms are designed to detect, disrupt, and protect the electromagnetic spectrum across various domains including land, air, sea, and space.We are in search of a talented Flight Test Engineer to become a vital part of our expanding team. The ideal candidate should possess extensive experience in the production and testing of complex systems, early-stage prototyping, and have a robust background in software development.

Engineering TechnicianJoin Radiant Industries as an Engineering Technician, where you will utilize a diverse array of skills in the fabrication and assembly of our innovative microreactor unit. Your role will be pivotal in constructing both large and small-scale test rigs, creating prototype components and tooling, and sourcing the necessary tools for assembly. You will be the fourth key technician on our team, necessitating a high level of autonomy and initiative. In our new El Segundo headquarters, you will manage our prototype shop, working with an assortment of tools across various shop activities, including machining, welding, metal forming, electrical work, and plumbing. This position offers you the chance to make a substantial technical impact as we strive to fuel a new reactor design for the first time in over 50 years by 2026.Key Responsibilities:Fabricate components to specifications using various shop equipment such as mills, lathes, welders, and hand tools.Lead the assembly and commissioning of test rigs and production builds.Conduct troubleshooting and root cause analysis for mechanical, electrical, thermal, and pneumatic issues.Collaborate with engineers to devise solutions and enhancements for hardware design, fabrication, and assembly processes.Maintain high operational standards regarding safety, reliability, and cleanliness.Perform additional tasks as required; versatility is essential in our small team environment.

Senior Structures EngineerRadiant Industries is on the lookout for a dynamic and innovative Senior Structures Engineer to lead the design and development of essential structures within the Kaleidos project. In this role, you will tackle unique engineering challenges, crafting efficient and robust structures that endure extreme temperatures and satisfy volumetric constraints. Your expertise will play a crucial role in advancing the first new commercial reactor design in over 50 years, set to launch by 2026.Key Responsibilities:Lead the design of critical structures, including mass-efficient transportable shielding systems, container systems, and high-temperature graphite and metallic systems.Conduct thorough trade studies and develop innovative designs to meet program specifications.Perform detailed thermomechanical (static strength, durability/fatigue) and dynamic analyses (vibration, shock) to ensure structural integrity, utilizing both manual calculations and finite element analysis tools.Create and implement manufacturing and assembly instructions, along with comprehensive test plans.Manage a Bill of Materials (BOM) and collaborate with suppliers for component development.Oversee subassembly design, manufacturing, and testing schedules.Conduct risk analysis (FMEA) for subsystems.Gather requirements and provide constructive guidance to engineers across different functional areas through effective communication.

Join Radiant Industries as a Senior Electrical Technician!In this pivotal role, you will leverage your expertise to support our engineering team in the development and assembly of cutting-edge electronic systems. Your contributions will ensure the reliability and functionality of our products, making a significant impact in the aerospace and military sectors.Responsibilities:Interpret and work with engineering drawings, electrical schematics, and wiring diagrams.Assemble, wire, and integrate hardware components such as PCBs, harnesses, electrical panels, and enclosures.Adhere to established procedures and specifications throughout the manufacturing process.Collaborate closely with engineers to enhance and document processes.Utilize manufacturing tools including soldering irons, cutters, strippers, crimpers, and torque wrenches with expertise.Conduct electromechanical tests such as continuity, hi-pot, and pull tests.Maintain a high standard of safety, cleanliness, and reliability in all operations.Demonstrate a solid understanding of electrical hardware and safe interaction practices.Required Skills:Experience with military or aerospace-grade electronics.Familiarity with high-power electronics and batteries.Understanding of production equipment and tooling for electromechanical manufacturing.Flexibility to support various projects aligned with company goals.Knowledge of NASA-STD-8739.4, IPC-A-610, IPC-A-620 standards.Experience with UL-508A and NFPA-70 (NEC) regulations.Preferred Qualifications:Ability to stand, bend, and work with small components for extended periods.Excellent vision and fine motor skills for precision work.Capability to lift up to 50 lbs occasionally.Strong teamwork, communication, and organizational skills.Positive attitude and ability to work effectively with minimal supervision.Strong organizational skills and attention to detail.Willingness to work outdoors when required.Ability to work at heights using scissor lifts or ladders as needed.Willingness to travel occasionally for offsite support.

Radiant Industries is on the lookout for an accomplished Senior Structural Engineer to spearhead the design and development of essential structures within our innovative Kaleidos project. In this pivotal role, you will tackle unique engineering challenges to create efficient and robust structures capable of sustaining fission reactions, even under extreme temperature conditions and stringent volumetric constraints.Your responsibilities will encompass conducting trade studies, selecting appropriate materials, performing comprehensive structural analyses, as well as overseeing assembly, integration, and testing processes. Your contributions will be instrumental in propelling the launch of the first new commercial reactor design in over half a century by the year 2026.

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.

About the JobJoin Treatment Technologies & Insights, Inc. (TTI) as a Senior Backend Engineer within our dynamic platform team. Your expertise will be essential in designing and developing robust APIs and services that drive the Wave Health platform, aimed at enhancing treatment experiences for patients battling cancer and chronic illnesses.We are seeking a proactive engineer with a strong ability to solve complex technical challenges while actively promoting best practices across various teams. Your fresh ideas and problem ownership will be invaluable as we continue to evolve our infrastructure amidst ongoing partnerships and strategic growth. If you thrive in a fast-paced startup environment and possess a solid background in architecting complex, production-grade healthcare systems, we want to hear from you!

Join Radiant Industries as a Senior Network Security EngineerAre you ready to take your career to new heights? Radiant Industries, a pioneering startup based in El Segundo, CA, is revolutionizing the energy sector with our innovative portable nuclear microreactors. Our flagship product, Kaleidos, is a groundbreaking 1-megawatt microreactor designed for mobility and reliability, capable of operating for up to five years without refueling. We are on a mission to replace traditional diesel generators with safe, efficient nuclear power solutions, delivering essential energy support to hospitals, data centers, remote locations, and military bases.As a Senior Network Security Engineer, you will play a crucial role in shaping our network infrastructure as we expand. This position demands a proactive and hands-on approach, where you will lead key infrastructure initiatives, including the migration of core services to our colocation facility (Equinix) and the redesign of our site-to-site connectivity using Fortinet SD-WAN.

Important Notice: In compliance with the U.S. Government Space Technology Export Regulations, applicants must be U.S. citizens, lawful permanent residents, conditional residents, asylees, or refugees, or be eligible to acquire the necessary authorizations from the U.S. Department of State.At CesiumAstro, we are innovators and leaders in developing advanced communication systems for satellites, UAVs, launch vehicles, and various space and airborne platforms. Our vibrant and collaborative work environment fosters learning, growth, and engagement across all levels of our organization. If you seek an interactive, hands-on work experience with autonomy, CesiumAstro is the perfect place for you. We invite enthusiastic, team-oriented, and innovative individuals to become part of our journey.We are on the lookout for a Power Electronics Engineer II to bolster our expanding spacecraft payload development team. In this role, you will play a crucial part throughout the entire development lifecycle of cutting-edge power electronics hardware for satellites and space power systems payloads. Your contributions will range from defining power system architectures and conducting trade studies to detailed circuit design, simulation, PCB layout, verification, integration testing, and providing manufacturing support.