Electrical Engineer - Inverter Systems Engineer

Company OverviewMainspring Energy is at the forefront of transforming power generation with the innovative Mainspring Linear Generator, a technology offering unparalleled flexibility and adaptability. Leading commercial, industrial, and utility sectors are opting for Mainspring's solutions over conventional engines, turbines, and fuel cells to efficiently an…

Company OverviewMainspring Energy is at the forefront of transforming power generation with its innovative Mainspring Linear Generator technology, which offers unmatched flexibility and adaptability for local power generation. Our solutions are preferred by commercial, industrial, and utility sectors, providing reliable energy for applications such as EV charging, data centers, and large-scale grid operations. The Mainspring Linear Generator is designed to be fuel-flexible, capable of adjusting output to meet demand, and operates with a flameless reaction, achieving nearly zero NOx emissions.With the support of prominent investors including Khosla Ventures, Bill Gates, American Electric Power, Lightrock, and General Catalyst, Mainspring is committed to delivering high-quality products to customers across the U.S. and is rapidly expanding into international markets.Driven by our mission to create a reliable, affordable, and net-zero carbon grid, Mainspring is strategically positioned within the $816 billion global electricity equipment market. We are seeking talented individuals from diverse backgrounds and experiences to foster innovation and bring fresh perspectives to our team and our customers.We value individuals who resonate with our core principles:Pragmatic Optimism. We believe that building a new category of world-class power generation requires a balance of ambition and creativity with practical problem-solving skills. Challenges are viewed as opportunities for growth.Excellence without Ego. Our commitment to exceptional customer experience spans from sales to deployment and service. We apply rigorous technical expertise in developing and delivering outstanding products while maintaining the humility to recognize our challenges.Proactive Collaboration. The interdisciplinary nature of Mainspring’s operations encourages us to actively seek collaboration with individuals who possess diverse skills and viewpoints, fostering an inclusive culture that extends beyond our company to our partners and customers.For more information, please visit www.mainspringenergy.com

Company OverviewMainspring Energy is at the forefront of transforming power generation with our groundbreaking local power generation technology, the Mainspring Linear Generator. Leading commercial, industrial, and utility organizations are increasingly choosing Mainspring over traditional solutions like engines, turbines, and fuel cells to efficiently and reliably provide local power for applications such as EV charging, commercial facilities, data centers, and large-scale grid operations.The Mainspring Linear Generator boasts remarkable fuel flexibility, adapts effortlessly to demand fluctuations, and employs a flameless reaction process that results in near-zero NOx emissions. Supported by esteemed investors including Khosla Ventures, Bill Gates, American Electric Power, Lightrock, and General Catalyst, Mainspring designs, manufactures, and delivers its innovative products to a diverse clientele across the U.S., with plans for rapid international expansion.Guided by our vision for an affordable, reliable, net-zero carbon grid, Mainspring is rapidly scaling within the $816 billion global electricity equipment market. We are actively seeking exceptional talent to meet the increasing demand from our customers worldwide. We embrace a wide array of backgrounds, experiences, and talents to drive fresh perspectives and continuous innovation for our clients.We value relationships with individuals who align with our core principles:Pragmatic Optimism: The ambition and creativity required to build a world-class power generation category must be coupled with practical problem-solving skills. We view challenges as opportunities for growth.Excellence without Ego: Our commitment to delivering an unparalleled customer experience—from sales to deployment and service—mirrors the technical rigor we apply in our product development. We aim for excellence while maintaining the humility to address our challenges collectively and as individuals.Proactive Collaboration: The integrated and multidisciplinary nature of our work at Mainspring necessitates intentional collaboration with individuals who offer diverse skills, perspectives, and priorities. Our culture promotes inclusion and respect in all interactions, both internally and with our partners and customers.

Company Overview Mainspring Energy is at the forefront of transforming power generation with our cutting-edge Mainspring Linear Generator, known for its unparalleled flexibility and adaptability. Leading figures in the commercial, industrial, and utility sectors are opting for Mainspring's technology over traditional power sources such as engines, turbines, and fuel cells, to swiftly and reliably provide local power solutions for applications including EV charging, commercial facilities, data centers, and large-scale grid operations. The Mainspring Linear Generator is designed to be fuel flexible, capable of adjusting output in response to demand, and utilizes a flameless reaction that produces near-zero NOx emissions. Supported by prestigious investors including Khosla Ventures, Bill Gates, American Electric Power, Lightrock, and General Catalyst, Mainspring is committed to designing, manufacturing, and delivering innovative products to customers across the U.S., with plans for rapid international expansion. Driven by our vision of an affordable, reliable, net-zero carbon energy grid, Mainspring is rapidly establishing itself within the $816 billion global electricity equipment market. We are in search of talented individuals who can contribute to our mission and help us meet the increasing demands of our customers around the world. We value a diversity of backgrounds, experiences, and skills to foster fresh perspectives and innovation. We believe in building relationships with individuals who share our core values: Pragmatic Optimism: The ambition to build a new category of world-class power generation is fueled by a blend of optimism and creativity, coupled with practical problem-solving skills to efficiently address challenges. Excellence without Ego: Our commitment to delivering the best customer experience drives us to apply our deep technical expertise with humility, striving for excellence while acknowledging our collective and individual challenges. Proactive Collaboration: Our success hinges on the integration of diverse skills and perspectives, and we cultivate a culture of inclusion and respect that extends to all our partners and customers. For more information, please visit www.mainspringenergy.com.

Join our innovative team as a Power Systems Engineer, where you'll be at the forefront of energy solutions. In this role, you will design, analyze, and optimize power systems to enhance efficiency and sustainability. Your expertise will contribute to cutting-edge projects that shape the future of energy management.

Why Choose LeoLabs? At LeoLabs, we are pioneering the creation of a living map of activity in space. Through our proprietary global radar network and cutting-edge AI analytics platform, we gather millions of measurements daily on over 25,000 objects in low Earth orbit (LEO). Our radar-driven intelligence safeguards billions in assets, tracks adversarial activities, and guarantees safe operations for both commercial and government missions. We are not just developing technology; we are transforming global security, safety, and transparency in space. As orbital activities increase and threats become more intricate, LeoLabs stands as a trusted partner for Space Domain Awareness, Space Traffic Management, and Satellite Operations for premium space operators and allied defense organizations. If you are eager to tackle mission-critical challenges at the cutting-edge of aerospace, national security, and AI, your journey begins here. The Opportunity Join our Hardware Engineering team at LeoLabs in Menlo Park and play a vital role in developing the next generation of radar systems that provide persistent orbital intelligence to clients worldwide. As a Senior Electrical Engineer, you will be at the forefront of designing and developing intricate electronics that are essential to LeoLabs’ radar platforms. This hands-on position is for an experienced engineer who can take full ownership of board-level hardware from architecture and schematic capture through PCB implementation, bring-up, validation, and production support. You will collaborate closely with RF, mechanical, embedded, test, and manufacturing engineers to deliver robust, high-performance hardware across various applications including power, control, timing, and mixed-signal systems. This role is perfect for someone who thrives in a dynamic hardware environment, enjoys solving complex interdisciplinary challenges, and aspires to create tangible systems that move swiftly from concept to deployment. This is a full-time, on-site position at our Menlo Park, CA headquarters, with occasional international travel required to support deployment and site activities.

Join Mainspring Energy as a Senior Electrical Engineer specializing in Power Electronics, where you will play a pivotal role in advancing innovative energy solutions. You will lead design and development efforts, working collaboratively with cross-functional teams to deliver cutting-edge power electronics systems that enhance energy efficiency and reliability.

Join Mainspring Energy as a Staff Electrical Engineer specializing in Power Electronics. In this pivotal role, you will leverage your expertise in electrical engineering to drive innovations in power electronics, contributing to the development of clean, reliable energy solutions. Collaborate with a dynamic team of engineers and researchers dedicated to transforming the energy landscape.

About Periodic LabsAt Periodic Labs, we combine advanced artificial intelligence with physical sciences to develop cutting-edge models that foster groundbreaking scientific discoveries. With strong financial backing and rapid growth, we empower our team members to take ownership of their roles, encouraging creative problem-solving without the constraints of bureaucracy. Our culture thrives on continuous learning and innovation, as we embrace new tools and scientific advancements to drive our mission forward.About the RoleIn this pivotal position, you will spearhead the design, implementation, and management of Periodic Labs’ IT and security frameworks. You will take charge of identity management, endpoint security, network security, and SaaS security, ensuring that our internal workflows are seamless and secure, which in turn allows our researchers to maintain high productivity levels.Your responsibilities will include writing automation scripts, integrating various systems, and establishing high benchmarks for security, reliability, and user experience. Collaborating closely with our research, infrastructure, and operations teams, you will ensure that all environments—spanning laptops, clusters, and scientific laboratories—are secure, compliant, and efficient.

About Periodic LabsAt Periodic Labs, we are at the intersection of artificial intelligence and physical sciences. Our mission is to develop cutting-edge models that facilitate groundbreaking scientific discoveries. As a well-funded and rapidly expanding organization, we foster a culture where every team member is empowered to tackle challenges without the constraints of bureaucracy. We are passionate about learning new tools and advancing scientific knowledge to propel our mission forward.About the RoleAs a Systems Engineer, you will be an integral part of our elite team of scientists and engineers, driving the advancement of materials research in an innovative lab environment where AI and automation enable discoveries at an astonishing pace and scale.In this role, you will transform the innovative ideas of our scientists into functional systems: defining requirements, collaborating with automation vendors on design and construction, and overseeing installation and commissioning on-site. From concept initiation to the point where a tool is operational daily, you will harmonize teams, prioritize tasks, and streamline complex interfaces into reliable operations. If you are driven by the desire to convert ideas into reliable instruments that accelerate scientific progress, this is an exceptional opportunity to enhance your skills and contribute to groundbreaking discoveries.

Periodic Labs is an AI and physical sciences company based in Menlo Park. The team focuses on advancing scientific discovery by building advanced models that drive progress in materials, energy, and related fields. The company operates with a strong sense of ownership and a drive to push scientific boundaries, supported by leading investors and a rapidly growing organization. Role overview The Machine Learning Systems Engineer will own the systems layer that powers model training and inference. This work is closely tied to the reinforcement learning (RL) feedback loop at the heart of Periodic Labs' research process, where models propose experiments, experiments generate data, and that data improves future models. The role blends deep infrastructure work with research collaboration, focusing on both performance and integration with the scientific workflow. What you will do Develop scheduling solutions for GB series GPUs using platforms like Ray, Slurm, and Kubernetes. Aim to minimize latency and maximize resource utilization across different cluster setups. Create profiling tools, both online and offline, to identify and resolve bottlenecks in the training and inference stack. Implement direct S3 checkpoint streaming to remove I/O bottlenecks during large-scale training runs. Benchmark RL training configurations across model sizes, batch strategies, and hardware architectures to find optimal setups. Write and optimize communication and GPU kernels to increase hardware throughput. Design and implement zero-copy RDMA weight synchronization between training and inference systems, keeping the RL loop fast and efficient. Develop sandbox execution environments for rapid algorithm testing and iteration. Key focus areas Scheduling, kernels, RDMA, weight synchronization, and communication primitives Collaboration with researchers to co-design algorithms and infrastructure Accelerating the RL feedback loop that drives scientific discovery at Periodic Labs

Why Join LeoLabs?At LeoLabs, we are pioneering the creation of a comprehensive living map of activity in space. Utilizing our unique global radar network alongside an AI-driven analytics platform, we gather millions of measurements daily from over 25,000 objects in Low Earth Orbit (LEO). Our radar technology safeguards billions in assets, monitors potential threats, and guarantees the secure operation of both commercial and governmental missions.We are not merely developing technology; we are transforming global security, safety, and transparency in space. As orbital activities increase and threats become more intricate, LeoLabs stands as a trusted ally for Space Domain Awareness, Space Traffic Management, and Satellite Operations, partnering with leading space operators and defense organizations.If you are eager to tackle mission-critical challenges at the intersection of aerospace, national security, and AI, your journey starts here.This full-time position is based at our Menlo Park, CA headquarters, where you will collaborate closely with our RF, Mechanical, and Embedded engineers. The Hardware Engineering Team is responsible for designing, developing, manufacturing, and deploying advanced radar systems that deliver continuous orbital intelligence to our global clientele. As a Senior Electrical Engineer, you will spearhead advanced PCB layout, schematic design, and electrical integration for LeoLabs’ next-generation radar hardware. You will serve as the eCAD domain expert, overseeing Altium library management, layout standards, and design governance, while directly contributing to the development of complex, high-performance electronics. Occasional international travel may be required to support hardware deployment and site activities. This role reports directly to the Hardware Engineering Manager.

Join LeoLabs: Pioneering Space Safety! At LeoLabs, we're crafting a dynamic and comprehensive map of activity in space. Utilizing our innovative global radar network and AI-driven analytics platform, we record millions of measurements every day on over 25,000 objects orbiting in low Earth orbit (LEO). Our radar-enabled intelligence safeguards billions in assets, monitors potential threats, and guarantees safe operations for both commercial and governmental missions. We are not just developing technology; we are reshaping global security, safety, and transparency in space. As orbital activities increase and threats evolve, LeoLabs remains a trusted partner for Space Domain Awareness, Space Traffic Management, and Satellite Operations for leading space operators and defense organizations. If you are eager to tackle mission-critical challenges at the forefront of aerospace, national security, and AI, your journey begins here. We are currently seeking a Senior Radar FPGA/Embedded Systems Engineer to enhance our expanding team. The Radar Systems group at LeoLabs focuses on the development, maintenance, and operation of advanced software for phased array radars. In this role, you will be responsible for building, maintaining, and deploying the FPGA images utilized in our in-house Software Defined Radios (SDRs), along with the control software needed to interface with the radar and its drivers. Significance of This Role: Your contributions will directly influence mission-critical radar systems that bolster national security, commercial space operations, and overall safety in space by enabling precise detection, tracking, and analysis of objects in orbit. Key Responsibilities: Xilinx Platform Ownership Oversee and maintain the Xilinx Vivado + Yocto projects from inception to deployment. Enhance and secure the development and production environments. Update existing projects to be compatible with current Xilinx tool versions. Establish a dependable process for building, packaging, and deploying FPGA/boot images to both local and remote devices. RF Signal Processing-Focused FPGA Development Refine and enhance FPGA-based RF/radar signal processing chains. Collaborate with RF/signal processing stakeholders to translate performance requirements into FPGA modifications. Manage fixed-point design trade-offs and validate against system-level metrics.

About Periodic LabsAt Periodic Labs, we are pioneering advancements at the intersection of artificial intelligence and physical sciences. Our mission is to develop cutting-edge models that facilitate groundbreaking scientific discoveries. With substantial funding and a trajectory of rapid growth, our team operates as a community of owners, empowered to identify and navigate challenges without the constraints of bureaucracy. We are passionate learners, continuously seeking new tools and scientific insights to propel our mission forward.About the RoleIn this pivotal role, you will be responsible for architecting and scaling our Manufacturing Execution Systems (MES) that drive the operations of our automated materials synthesis laboratory. You will take ownership of scheduling, workflow management, and data provenance systems that integrate a variety of instruments—including furnaces, dispensers, and diffractometers—to enable the large-scale synthesis of innovative materials. Your work will involve creating workflow orchestration for multi-step synthesis processes, as well as instrument scheduling systems that effectively manage resource contention, prioritize tasks, and handle batching on shared equipment. You will ensure comprehensive lineage tracking for every sample action taken. Your technical expertise will span the full stack—from Python backend development to React frontend interfaces, and Kubernetes infrastructure—ensuring our systems operate reliably in production with minimal need for intervention. Collaborating closely with the engineering lead, you will help scale our lab automation platform in response to increasing instrument counts and experimental throughput.You will excel in this role if you possess the following experience:Development of production MES, LIMS, ERP, or process control systems adhering to strict correctness standards.Expertise in workflow and Directed Acyclic Graph (DAG) orchestration.Proficient data modeling for audit and provenance applications.Experience in managing concurrent systems, including resource locking, scheduling, and contention resolution.Background in powder synthesis, ceramics, or materials manufacturing environments.Familiarity with scheduling algorithms for managing shared resources under constraints.Knowledge of event sourcing or append-only data architectures.

Internship Type: This is a paid, full-time internship position for the summer, fall, or spring semesters. Interns are required to work in our Bay Area office (Menlo Park) three days a week.We are excited to invite applications from aspiring engineers and AI enthusiasts keen to delve into the realm of computer engineering and artificial intelligence. Our focus is on developing innovative solutions in distributed systems that drive impactful changes in technology.No prior experience in fields such as cybersecurity is mandatory.Immigration Requirements: Candidates must be legally authorized to work in the United States. Sponsorship options are available for individuals currently residing in the U.S.

Company OverviewAt Mainspring Energy, we are at the forefront of transforming power generation with our innovative Mainspring Linear Generator. This groundbreaking technology is favored by commercial, industrial, and utility leaders for its flexibility and reliability, providing local power solutions for applications such as EV charging, data centers, and grid-scale operations. Our generator is not only fuel-flexible but also delivers on-demand energy with minimal environmental impact, boasting near-zero NOx emissions.Supported by prominent investors, including Khosla Ventures, Bill Gates, American Electric Power, Lightrock, and General Catalyst, Mainspring designs, manufactures, and distributes its products across the U.S. and is poised for rapid international growth.Driven by our vision of creating an affordable, reliable, and net-zero carbon grid, we are expanding our presence in the $816 billion global electricity equipment market and are eager to welcome exceptional talent to help us meet increasing global demand. We value diverse backgrounds and experiences, as they foster innovation and fresh perspectives for our customers.We seek to establish connections with individuals who resonate with our core values:Pragmatic Optimism. Cultivating a new category in power generation requires a blend of ambitious creativity and practical problem-solving. Every challenge presents an opportunity for growth.Excellence without Ego. We are committed to delivering a superior customer experience across all facets of our operations, from sales to service. Our approach combines technical excellence with humility, recognizing our collective and individual challenges.Proactive Collaboration. The integrated nature of our business demands an intentional collaboration across diverse skills, perspectives, and priorities, fostering a culture of respect and inclusion that extends to our partners and customers.Discover more about us at www.mainspringenergy.com

Join Sprinter Health as an Engineering Manager in our Product Engineering team! We are looking for an innovative and driven leader who thrives in a fast-paced environment. The ideal candidate will be responsible for guiding a team of engineers in building cutting-edge health technology solutions. Your role will involve overseeing product development, ensuring high-quality standards, and collaborating cross-functionally to deliver exceptional products that enhance patient care.

Join our dynamic team at Collabera as a Quality Engineer, where you will play a critical role in ensuring the highest level of product quality. In this position, you will be responsible for developing and implementing quality assurance processes, conducting tests, and collaborating with cross-functional teams to identify areas for improvement. Your expertise will help drive continuous quality enhancement in our products and services.

The Forward Deployed Engineer role at Workstream centers on delivering technology solutions to clients in Menlo Park, California. This position works hands-on with both internal teams and customers to implement software products smoothly and address client requirements with care. What you will do Collaborate with cross-functional teams during software deployments Troubleshoot issues as they arise throughout the implementation process Optimize deployment workflows for greater efficiency Support clients directly to ensure their satisfaction with the product Analyze system performance and apply improvements where needed Role overview This position focuses on both technical problem-solving and direct client interaction. The work aims to improve how clients use Workstream's products and to boost their operational efficiency through thoughtful deployment and support.

Be Part of the Future of Finance!At Robinhood, our mission is to democratize finance for everyone. With an estimated $124 trillion expected to be inherited by younger generations in the coming decades, this is the largest wealth transfer in history. If you're ready to be at the forefront of this monumental shift, we want to hear from you!About Our Team and Your RoleWe are assembling a world-class team focused on leveraging advanced technologies to tackle the most pressing challenges in finance. We seek innovative thinkers, adept problem-solvers, and passionate builders who are driven to create impact. Robinhood is a dynamic environment where ambitious talent can excel and achieve the best work of their careers. Our high-performing team is fast-paced, values ethics, and rewards excellence.The People Systems team specializes in developing and managing robust HR technology that ensures security and scalability for our workforce. Collaborating with People Operations, Compensation, Payroll, Finance, and Corporate Engineering, we enhance employee experiences with reliable systems. Our focus is on optimizing system performance, enabling new capabilities, and supporting organizational growth through strategic design. This team is vital in facilitating acquisitions and enhancing our global workforce operations!As a Staff Workday Engineer, you will be responsible for designing, configuring, and enhancing Workday solutions in areas such as HCM, Compensation, Benefits, and Payroll. You will work closely with People and business teams to translate their requirements into effective system configurations, reports, and integrations. This role is pivotal in driving system improvements and major initiatives, including acquisitions and the development of new features. You will also play a key role in evaluating and integrating AI capabilities within HR systems to enhance efficiency and decision-making.This position is based in our Menlo Park, CA office, with an expectation of in-person attendance at least 3 days per week.At Robinhood, we champion the power of in-person collaboration to drive progress, foster innovation, and build community. Our office environment is designed to be engaging and supportive of high-performing teams.