Lead IT Systems & Security Engineer

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 …

About Periodic Labs Periodic Labs combines artificial intelligence with the physical sciences to advance scientific discovery. The team works on developing new models and tools that push the boundaries of research. Backed by strong funding and growing quickly, team members have ownership over their work and solve problems without bureaucratic barriers. The company values curiosity, practical solutions, and the adoption of new scientific methods and technologies. Role Overview: Lead Security Engineer The Lead Security Engineer will design, implement, and manage security practices across Periodic Labs. This role is responsible for protecting the systems that support research and daily operations, including cloud platforms, clusters, internal developer tools, identity systems, secrets management, SaaS integrations, and lab infrastructure. Collaboration with research, infrastructure, lab, and operations teams is essential to reduce risk and support scientific experimentation. This is a hands-on position. The Lead Security Engineer will build automation, deploy security controls, lead incident responses, and help raise the standard for secure system design. The role also involves setting up practical security protocols and developing tools to make secure practices easier for everyone at Periodic Labs. Key Responsibilities Oversee security architecture for cloud environments, Kubernetes, internal services, and research infrastructure Develop and manage identity and access systems for both people and workloads, including SSO, MFA, RBAC, SCIM lifecycle automation, workload identity, and least-privilege access Improve secrets management using KMS, GitHub and CI credentials, 1Password or similar tools, and secure service-to-service authentication Strengthen software delivery and developer workflows, focusing on CI/CD, dependency security, build provenance, artifact integrity, and secure GitHub administration Conduct threat modeling, secure design reviews, and risk assessments for internal platforms, lab systems, and any externally exposed products Build detection and response capabilities across cloud, identity, network, and endpoint telemetry; manage incidents through containment, root cause analysis, and remediation Lead vulnerability management and remediation automation for hosts, containers, dependencies, SaaS, and infrastructure-as-code Work with infrastructure and lab engineering teams on segmentation, remote access, firewall policy, certificates, DNS, and secure device-to-cloud patterns Set practical security standards, run tabletop exercises, and help the company make informed security decisions without unnecessary overhead Location This role is based in Menlo Park.

Join Prophet Security as a Software Engineering Manager for our Platform Team!At Prophet Security, we are revolutionizing the security operations landscape with our AI-powered platform that enhances detection, investigation, and response capabilities. Our mission is to empower security teams to operate without the limitations of overwhelming alert volumes or disjointed tools. As part of our growing team, you will collaborate with industry veterans from leading companies like Abnormal Security, Expel, Mandiant, and McAfee to shape our innovative solutions and enhance customer success.Your Role and ImpactThe Platform Team is critical to ensuring our security operations platform functions reliably and efficiently at scale. You will be responsible for:Integrations: Developing and maintaining effective connectors for seamless and dependable ingestion of security data from various sources, including SIEM, EDR, cloud platforms, and SaaS applications.Observability & Monitoring: Implementing comprehensive telemetry, logging, and alerting systems to achieve over 99.9% uptime and facilitate swift incident responses.Developer Productivity: Creating CI/CD pipelines, testing frameworks, and development tools to enhance the overall efficiency of our engineering organization.Deployment Infrastructure: Designing and managing secure deployment systems that ensure compliance across diverse customer environments.As the Engineering Manager for the Platform Team, you will define and oversee the technical roadmap, balancing immediate customer needs with a vision for architectural excellence. Your contributions will significantly influence every customer interaction with Prophet Security, enabling our engineering team to work more effectively and scalable.Your ResponsibilitiesThis role is a hands-on engineering management position, where you will dedicate 25% of your time to direct technical contributions while leading your team.Build and nurture a high-performing team of Platform engineers, focusing on hiring top talent that aligns with our culture.Maintain technical credibility by staying engaged with our codebase, ready to troubleshoot issues, enhance monitoring, or deploy new features as necessary.Provide mentorship and guidance through regular one-on-one meetings, establishing clear pathways for career development and growth opportunities for each team member.Continuously evaluate and refine team processes to drive efficiency and innovation.

About Prophet SecurityAt Prophet Security, we are revolutionizing the way security operations are conducted with our cutting-edge AI-native platform. Our technology accelerates detection, investigation, and response, enabling teams to operate more efficiently without the burden of excessive alerts or disjointed tools. Join our early-stage team comprised of industry veterans from Abnormal Security, Expel, Mandiant, and McAfee, and play a pivotal role in shaping our solutions to enhance customer outcomes.Your ImpactAs a key member of the Core Product Team, you will lead the development of essential investigative features and workflows that drive our AI SOC agent. Your contributions will define the way security analysts engage with and trust our AI-driven investigations, from initial alert triage to complex, multi-stage threat hunting.In your role as Engineering Manager, you will establish and oversee the technical roadmap for Prophet AI's core intelligence capabilities. You will adeptly balance the urgent delivery of customer value with the strategic vision necessary to create the most proficient AI security analyst in the market. Your leadership will directly influence the interaction and trust that security teams place in our AI-driven investigation and response solutions.Your ResponsibilitiesBuild and cultivate a high-performing team of Product engineers, ensuring the hiring of exceptional talent that aligns with our values and elevates our standards.Maintain hands-on engagement with our codebase to uphold technical credibility and a comprehensive understanding of our systems. You’ll be proactive in fixing bugs, adding monitoring, or deploying features as required.Foster a culture of growth through regular coaching and mentorship, setting clear career development paths for each team member.Drive team performance by establishing clear expectations, delivering continuous feedback, and conducting performance reviews that empower engineers to develop their skills.Promote operational excellence by defining SLOs, incident response protocols, and continuous improvement initiatives.What We SeekA minimum of 5 years of experience as an engineering manager, with a track record of successfully leading product, full-stack, or AI/ML engineering teams.A strong technical background, particularly in software development and engineering management.

Be a Part of the Financial Revolution.At Robinhood, our objective is to make finance accessible to everyone. With an anticipated $124 trillion in assets set to be passed down to younger generations in the coming two decades, we are positioned at the forefront of a monumental cultural and financial transition. If you are excited about playing a vital role in this change, we want to hear from you.About Our Team and Your RoleWe are assembling a top-tier team dedicated to applying cutting-edge technologies to resolve the world’s most pressing financial challenges. We seek innovative thinkers and adept problem-solvers—individuals who are driven to make a significant impact. Robinhood is a dynamic environment where ambitious professionals thrive and deliver their best work. Our high-performing team is guided by strong ethical principles, with high expectations and equally high rewards.The Product and Application Security team is responsible for establishing and managing systems that empower engineers to identify and mitigate security risks early in the software development lifecycle. Our focus is on creating actionable safeguards—such as libraries and frameworks—that make secure development the standard practice. You will collaborate closely with engineering teams to minimize risks while facilitating efficient product development.As a Staff Security Engineer, you will act as a technical leader and expert, guiding the integration of security into development practices throughout Robinhood. You will be responsible for designing and implementing systems that provide clear security guidelines for engineers, advising on architecture and threat models, and influencing long-term security strategy. This position offers a high-impact opportunity to shape the future of application security within our organization!This role is based in our Menlo Park, CA office, with a requirement for in-person attendance at least three days per week.At Robinhood, we value in-person collaboration as a means to accelerate progress, ignite innovation, and foster community. Our office environment is intentionally crafted to be stimulating and fully supportive of high-performing teams.

Prophet Security creates automation tools designed for security teams. The company’s platform analyzes security alerts, builds and executes investigative plans, and delivers actionable findings. Security analysts use these results and provide feedback, helping improve automation over time. Prophet Security is led by a founding team with over 30 years of cybersecurity experience from organizations including Abnormal Security, Expel, Mandiant, McAfee, Oracle, Red Canary, Red Hat, Riverbed, and Symantec. Headquarters are in Menlo Park, with a hybrid work model. Role overview This Senior Full Stack Software Engineer role focuses on building the user-facing elements of Prophet Security’s AI SOC platform. As an early engineering team member, there is significant influence over product direction, technical architecture, and team culture. The initial emphasis is on frontend development, designing and implementing interfaces that security analysts use to investigate alerts, review AI-generated findings, and respond to threats. Over time, responsibilities can expand to backend systems, such as APIs, data pipelines, integrations, and services supporting the platform. What you will do Work with design, product, and backend engineers to deliver features for security analysts Collaborate with the security operations team and interact directly with customers to understand practical needs Shape product direction, technical architecture, and engineering practices as part of the early team Requirements Strong, recent experience in modern frontend development Interest in both frontend and backend engineering Comfort working collaboratively in a startup setting Location This position is based in Menlo Park and follows a hybrid work schedule.

Be a Part of Transforming the Financial Landscape.At Robinhood, our mission is to make finance accessible to everyone. With an estimated $124 trillion set to be passed down to younger generations over the next two decades, we are positioned at the forefront of this monumental transfer of wealth. If you are eager to contribute to this pivotal shift in the financial system, we encourage you to apply.About Our Team and the RoleWe are assembling a top-tier team dedicated to leveraging cutting-edge technologies to tackle the most pressing challenges in finance. We seek innovative thinkers, adept problem-solvers, and builders committed to making a lasting impact. Robinhood is a dynamic workplace that values ambition and hard work, ensuring our team members are rewarded for their contributions. Our high-performance culture is grounded in ethics and integrity.The Security Operations (SecOps) team plays a vital role in protecting Robinhood and our users by identifying, investigating, and mitigating security threats. Our team monitors production systems, endpoints, and cloud environments while employing threat intelligence and structured testing to proactively identify risks. We collaborate closely with engineering and infrastructure teams to enhance detection and response capabilities. Our commitment is unwavering: to minimize risks, enhance visibility, and uphold customer trust every day!As a Security Engineer specializing in Detection & Response, you will bolster Robinhood's capacity to detect, analyze, and manage security incidents. Your responsibilities will include designing and refining detection logic, evaluating security telemetry from cloud and endpoint systems, and driving tangible improvements in reducing false positives and detection gaps. You will collaborate with SOC analysts and security engineers to optimize investigation workflows and document findings. This position is perfect for someone passionate about hands-on detection engineering and eager to enhance team responses to real-world security threats!This position is located in our Menlo Park, CA office, with in-person attendance required at least 3 days per week.At Robinhood, we value the benefits of in-person collaboration to accelerate progress, foster innovation, and build a strong community. Our office environment is designed to be intentional, invigorating, and supportive of high-performing teams.

At GRAIL, our mission is clear: to detect cancer at its earliest stages, offering a chance for successful treatment. We are dedicated to altering the course of cancer mortality and uniting various stakeholders to embrace groundbreaking, safe, and effective technologies that revolutionize cancer care.As a pioneering healthcare organization, we are at the forefront of innovative technologies aimed at early cancer detection. Our multidisciplinary team consists of scientists, engineers, and physicians who harness the power of next-generation sequencing (NGS), large-scale clinical studies, and cutting-edge data science to tackle one of medicine's most formidable challenges.Headquartered in the vibrant Bay Area, GRAIL also has locations in Washington, D.C., North Carolina, and the United Kingdom, backed by prominent global investors and leaders in the pharmaceutical, technology, and healthcare sectors.To learn more about our transformative work, please visit grail.comWe are seeking a driven and impactful Senior Staff Product Security Engineer to be a pivotal technical leader in advancing our product security initiatives across the organization. Reporting to the Director of Product Security, you will play an essential role in ensuring the security and resilience of our products, vital to GRAIL's life-saving mission.As a senior individual contributor, you will lead the technical execution of our Product Security roadmap, collaborating closely with Engineering and Product teams, and mentoring fellow security engineers. Your influence will extend to architectural and development decisions throughout the product lifecycle, enabling teams to navigate the evolving threat landscape while ensuring efficient delivery in a regulated environment.Flexible Work Arrangement – Menlo Park (MPK) – 3 Days in OfficeThis position is located in Menlo Park, California, transitioning to Sunnyvale, California in Fall 2026. GRAIL offers a flexible work environment, allowing for a mix of on-site and remote work. Currently, our policy requires a minimum of 60% (24 hours) of your workweek to be on-site, with specific schedules determined collaboratively with your manager to align with team and business needs.

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.

Be a Pioneer in the Future of Finance.Join us at Robinhood, where our mission is to democratize finance for everyone. With an anticipated $124 trillion of wealth set to transfer to younger generations over the next two decades, we're at the forefront of this historic shift. If you're ready to play a pivotal role in transforming the financial landscape, we want to hear from you!About Our Team and Your RoleWe are assembling a top-tier team dedicated to tackling the most pressing financial challenges using cutting-edge technologies. We're seeking innovative thinkers and builders eager to make a substantial impact. At Robinhood, you'll take ownership of your work and help enhance financial accessibility for all while upholding high standards, accountability, and a profound commitment to security and ethics in our creations.The Red Team's objective is to pinpoint and mitigate genuine security threats across Robinhood by emulating adversary tactics and testing our defenses. As a Staff Offensive Security Engineer, you'll lead security evaluations across applications, infrastructure, and physical environments. You will closely collaborate with engineering and security teams to bolster detection and response strategies, prioritize risks, aid in remediation efforts, and create tools and techniques that enhance our security testing processes. Your contributions will be vital in ensuring the safety and reliability of our products, which serve millions of customers.This role is based in our Menlo Park, CA office, with in-person participation required at least 3 days per week.Robinhood champions the benefits of in-person collaboration to accelerate innovation, spark creativity, and foster community. Our office environment is designed to be engaging and supportive for high-achieving teams.

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 and reliably provide local power for applications such as EV charging, commercial facilities, data centers, and grid-scale operations.This state-of-the-art Linear Generator is fuel flexible, swiftly adjusts to meet varying demands, and operates using a flameless reaction that results in nearly zero NOx emissions. Supported by prominent investors like Khosla Ventures, Bill Gates, American Electric Power, Lightrock, and General Catalyst, Mainspring designs, manufactures, and delivers its cutting-edge products across the U.S. and is poised for rapid international growth.Driven by our vision of an affordable, reliable, net-zero carbon grid, Mainspring is swiftly expanding its reach within the $816 billion global electricity equipment market. We're committed to hiring exceptional talent to meet our increasing customer demands worldwide and embrace a diverse range of backgrounds, experiences, and skills to foster continual innovation for our clients.At Mainspring, we value:Pragmatic Optimism: We believe that the ambition and creativity required to build a new category of world-class power generation must be balanced with practical problem-solving.Excellence without Ego: We are dedicated to providing the best customer experience, applying deep technical rigor while remaining humble about our challenges.Proactive Collaboration: Our integrated, cross-disciplinary approach necessitates actively engaging with diverse perspectives and skills, extending our culture of inclusion and respect to our partners and customers.For more information, visit www.mainspringenergy.com.Job OverviewThe technology behind Mainspring’s Linear Generator is unmatched in the market. As an Electrical Engineer focusing on inverter systems, you will collaborate with a talented team to develop innovative electrical power and control hardware systems that optimize efficiency and comply with the strictest emissions standards.

Be a Part of the Future of Finance.At Robinhood, our mission is to democratize finance for everyone. With an anticipated $124 trillion in assets expected to transition to younger generations over the next 20 years, we stand at the forefront of this monumental wealth transfer. If you’re eager to influence this transformative cultural and financial era, we invite you to explore this opportunity.About Our Team and Your RoleWe are assembling a top-tier team that harnesses cutting-edge technologies to tackle the most pressing challenges in finance. We seek innovative thinkers, adept problem-solvers, and impactful builders. At Robinhood, complacency is not an option; we are where driven professionals achieve remarkable career milestones. Our team is high-performing, nimble, and anchored by strong ethical standards. The expectations are ambitious, and the rewards are equally significant.The Product & Application Security team is dedicated to embedding security into the design, development, and operational phases of our products. Collaborating closely with engineering and business leadership, we shape secure architectures, guide risk-informed decisions, and implement security assurance practices from the onset of the development lifecycle. As Robinhood embraces AI technologies, this team is pivotal in establishing secure AI frameworks, governance, and visibility across the organization!As the Senior Engineering Manager for Product & Application Security, you will define the strategy and oversee the execution of security measures across diverse domains. You will lead and nurture a team of security and software engineers while serving as a technical authority and trusted advisor to senior engineering and business stakeholders. This role encompasses ownership of critical security outcomes end-to-end, including AI platform security, automated security tools, M&A security initiatives, and the refinement of product security review processes, ensuring accountability for both immediate impact and long-term scalability.This position is based in our Menlo Park, CA office, with in-person attendance required at least four days a week.At Robinhood, we recognize the value of in-person collaboration to expedite progress, ignite creativity, and foster community. Our office environment is purposeful, invigorating, and designed to empower high-performing teams.

Be a Part of the Financial Revolution.Our goal is to make finance accessible to everyone. With an anticipated transfer of $124 trillion in assets passing to younger generations in the coming two decades, we stand at the forefront of a monumental cultural and financial transition. If you are eager to contribute to this pivotal moment in history, we invite you to read on.About Our Team and Your RoleWe are assembling a top-tier team dedicated to applying cutting-edge technologies to tackle the most pressing challenges in finance. We seek imaginative thinkers and adept problem-solvers—individuals who are driven to make a difference. At Robinhood, complacency is not an option; it is a place where ambitious professionals can excel. We are a dynamic team with high ethical standards, where expectations are elevated, and so are the rewards.We perceive security as a challenge of engineering and design rather than merely administrative. We are in search of a lead architect for our innovative automated defense systems. As a Senior Vulnerability Management Engineer, you will evolve our program into a self-sustaining security platform that goes beyond traditional "scan-and-patch" methodologies. Your leadership will drive the transition to an Intelligence-Driven Defense model through the integration of Agentic AI and Machine Learning, automating the identification, prioritization, and mitigation of risks at scale, ultimately reducing security costs for our developers.This position is based in our Menlo Park, CA office, with a requirement for in-person attendance at least three days per week.We believe that in-person collaboration accelerates progress, ignites innovation, and fosters community. Our office environment is deliberately crafted to energize and support high-performing teams.Key ResponsibilitiesStrategic RBVM Vision: Serve as the technical lead, establishing a multi-year strategy and guiding the transition to Risk-Based Vulnerability Management (RBVM), prioritizing vulnerabilities based on actual exploitability and business relevance.Architect Agentic AI Systems: Design and implement AI agents that autonomously triage findings, correlate threat intelligence, and produce actionable remediation solutions (e.g., automated Pull Requests for dependency updates and configuration drift).Develop Exposure Intelligence: Create systems that link vulnerabilities with runtime context to enhance overall security posture.

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

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.

Join our innovative team at januaryinc as a Lead Backend Platform Engineer! In this pivotal role, you will drive the development of scalable backend systems that support our industry-leading products. Your expertise will guide a talented team as we push the boundaries of technology and deliver exceptional user experiences.

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.

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 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 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.