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Senior
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Key ResponsibilitiesArchitect and implement the migration of on-premise servers and network equipment to a secure Equinix datacenter cage, ensuring robust connectivity across HQ and warehouse sites. Act as the Subject Matter Expert (SME) for our Fortinet security stack, optimizing the management of FortiGate firewalls, FortiSwitch, and FortiAP. Design and manage secure connectivity solutions (VPN/Direct Connect) between our physical infrastructure and cloud platforms (AWS/Azure). Oversee complex routing protocols (BGP, OSPF) to guarantee seamless failover and efficient traffic management across our SD-WAN fabric. Implement Zero Trust architecture principles, manage VLAN segmentation, and monitor for threats using FortiAnalyzer or similar tools.
About the job
Join Radiant Industries as a Senior Network Security Engineer
Are 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.
About Radiant Industries
Radiant Industries is at the forefront of energy innovation, developing the world's first mass-produced, portable nuclear microreactors. Founded in 2020, we are committed to delivering safe, factory-built microreactors utilizing modern software engineering and existing materials. Our first reactor, Kaleidos, is set to undergo testing this summer at the Idaho National Laboratory, with initial customer deliveries anticipated by 2028.
The Manager of Security Operations at Mattel, Inc. oversees efforts to protect company assets and maintain a safe environment for employees. This leadership role is based in El Segundo and centers on both proactive and responsive security measures. Role overview This position leads a team responsible for implementing and managing security protocols. The mana…
Full-time|$120K/yr - $120K/yr|On-site|El Segundo, California, United States
About VardaLow Earth orbit is open for business. Varda is pioneering the development of commercial space infrastructure, ranging from in-orbit pharmaceutical manufacturing to efficient and affordable reentry capsules.Varda aims to revolutionize the orbital economy by producing innovative products that can only be created in space, benefiting life on Earth. Our mission is to extend the economic horizons of humanity.With a team comprised of veterans from SpaceX, Blue Origin, top pharmaceutical firms, and Silicon Valley, Varda was founded in January 2021 by Will Bruey and Delian Asparouhov, backed by premier investors like Khosla Ventures, Lux Capital, Founders Fund, and others.Headquartered in El Segundo, California, Varda operates a production facility where our vehicles, equipment, and materials are designed, integrated, and tested, along with additional offices in Washington, DC and Huntsville, AL.Join Varda and contribute to establishing a thriving in-space ecosystem.About The Role:Varda serves a diverse and innovative clientele—from pharmaceutical companies developing groundbreaking therapies in microgravity to government agencies exploring the limits of hypersonic reentry and advanced flight testing. These cutting-edge missions necessitate security requirements that are robust, adaptable, and equally pioneering.
Join Our Team as the Director of Enterprise Security Architecture & Assurance!We are seeking a dynamic leader to oversee Mattel’s security assessment, vulnerability management, application security, and cloud security initiatives. This influential role is essential in ensuring that security is seamlessly integrated into all of Mattel’s enterprise platforms, digital products, cloud services, and partnerships within our ecosystem.As a key member of the Cyber Security Leadership Team and the Enterprise Architecture Council, you will play a pivotal role in shaping our enterprise security strategy, architecture standards, and technology decisions, all aimed at safeguarding Mattel’s brands, consumer data, and intellectual property.Your Impact:Security Assessments & Due DiligenceLead comprehensive enterprise security assessments including evaluations of third-party vendors and supply chain risks, as well as M&A security due diligence.Develop assessment methodologies that adhere to NIST, ISO, and SOC 2 standards.Collaborate with Legal, Privacy, Procurement, and business leaders to articulate risks and prioritize remediation efforts.Vulnerability ManagementManage and enhance Mattel’s enterprise vulnerability management program across all infrastructures, applications, and cloud environments.Work collaboratively with IT operations and Engineering teams to address vulnerabilities and improve control measures.Establish risk-based prioritization frameworks, remediation SLAs, and executive-level reporting.Define and monitor vulnerability and control maturity metrics, providing regular updates to senior leadership and ensuring Board-level visibility on cyber risks.Cloud & Application SecurityDesign and enforce cloud security architecture for public and hybrid cloud environments.Implement cloud security guardrails and reference architectures that align with shared responsibility models to facilitate secure cloud adoption.Lead the application security strategy, including secure SDLC practices and code reviews following OWASP standards.Oversee the implementation of application security tooling and automation (e.g., SAST, DAST, SCA) to enhance secure development practices.Collaborate with engineering teams to integrate security measures into cloud-native and application designs.Architecture & GovernanceContribute to the Enterprise Architecture Council, ensuring security and privacy considerations are embedded in technology standards and design decisions.Review and guide major architecture initiatives and platform investments to ensure alignment with enterprise security strategy and risk profile.Cyber Leadership & CollaborationActively participate as a member of the Cyber Security Leadership Team, shaping strategic direction, roadmaps, and investment priorities.Advise senior leadership on security risks, architectural trade-offs, and strategic priorities.
We are seeking a highly skilled Senior Network Security Analyst to join our dynamic team at usm2. This is an exciting opportunity for an individual with a robust background in network security and a passion for safeguarding organizations against cyber threats. You will be responsible for identifying vulnerabilities, implementing security measures, and ensuring compliance with industry standards.
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.
Join picogrid as a Field Operations Engineer and play a pivotal role in enhancing operational efficiency and driving performance. In this dynamic position, you will be responsible for overseeing field operations, ensuring the successful implementation of projects, and collaborating with cross-functional teams to deliver innovative solutions.
Join Mattel Digital Studios as the Director of Business Operations, where you'll play a pivotal role in driving operational excellence and fostering innovative strategies. Your leadership will guide cross-functional teams to enhance our digital initiatives and ensure seamless business processes.
Full-time|$200K/yr - $270K/yr|On-site|El Segundo, CA
Join Voyager Technologies, a pioneering company in defense, national security, and space technology, dedicated to delivering transformative solutions that are critical for mission success. We confront the most intricate challenges to unveil new horizons for human advancement, bolster national security, and safeguard vital assets, leading the charge in the pursuit of technological and operational excellence from land to space. Shape the Future with Voyager Technologies At Voyager Technologies, we believe that the future is shaped by those who dare to create it. We are committed to developing technologies that save lives, broaden boundaries, and prepare us for the future. We seek individuals who are problem solvers, builders, adaptable, and leaders. Our roles demand courage and innovation. Be a part of a community where your contributions lay the groundwork for humanity's future. Experience a culture where innovation flourishes, curiosity is celebrated, and your impact is significant. We are a team of doers, thinkers, and builders, united by our mission and rooted in reality. If you are ready to apply your skills where the stakes are high and the mission transcends individual efforts, forge the future with Voyager.
Join Mattel, Inc. as a Senior Analyst in Digital Operations, where you will play a crucial role in optimizing our digital platforms and operations. You will collaborate with cross-functional teams to analyze data, enhance user experiences, and drive strategic initiatives. This role offers a unique opportunity to influence our digital strategy and contribute to the growth of one of the world's leading toy companies.
Join picogrid as an Operations & Logistics Coordinator, where you will play a pivotal role in enhancing our operational efficiency and enabling seamless logistics processes. In this dynamic position, you will collaborate with cross-functional teams to ensure timely delivery of products and services.Your responsibilities will include managing inventory levels, coordinating shipments, and optimizing supply chain processes to meet organizational goals. We are looking for a proactive individual who is passionate about logistics and operations, and who thrives in a fast-paced environment.
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
Join Our Team as a Reactor Operations EngineerRadiant Industries is on the lookout for a skilled Reactor Operations Engineer to develop and implement essential procedures for our innovative nuclear microreactor technology. This position presents an extraordinary chance to merge engineering, operations, and human factors in a highly technical and regulated setting. You will work alongside a diverse team to transform intricate hardware and software designs into clear, actionable procedures that comply with DOE and NRC standards. Your efforts will empower Reactor Operators (ROs) and Senior Reactor Operators (SROs) to efficiently and safely conduct testing, commissioning, and operational activities.This role transcends traditional systems engineering; you'll also gain practical experience as a Reactor Operator (RO), directly shaping the development of operational software, procedures, and digital twin simulations. Your contributions will play a vital role in enhancing operator efficiency, safety, and the real-world execution of our state-of-the-art microreactors.
As the Director of Supply Chain Management for Kaleidos, you will spearhead a dynamic team of Supply Chain Managers and Buyers, focusing on essential reactor components and services. Your mission will be to ensure adherence to standardized processes while continuously enhancing workflows to support our organization's growth. You will collaborate intimately with leaders from Engineering, Finance, Regulatory, Production, Supplier Development, and Planning to guarantee material availability, timely delivery dates, and accurate supply chain data that empower informed decision-making in a fast-paced, regulated environment.This hands-on leadership role is ideal for a candidate who excels in operational excellence, embraces accountability, and has a track record of transforming complex supply chains into streamlined execution systems.Key ResponsibilitiesSupply Chain Execution & LeadershipLead and cultivate a high-performing team of Supply Chain Managers and Buyers dedicated to direct procurement for Kaleidos reactor builds.Establish and communicate clear expectations, operational rhythms, and accountability mechanisms across sourcing, purchase order execution, expediting, and supplier follow-up.Foster a culture of urgency, ownership, and data integrity throughout the supply chain organization.Sourcing & Procurement OperationsOversee sourcing strategies and supplier selection in collaboration with Supplier Development Engineers (SDEs) and Engineering teams.Ensure that commercial terms, lead times, quality standards, and flow-down requirements are accurately reflected in contracts and purchase orders.Maintain stringent control over the entire purchase order lifecycle, from requisition through delivery, closure, and post-delivery follow-ups.Delivery & Performance ManagementTake ownership of supply chain health metrics, including promise date adherence, on-time delivery rates, purchase order line health, and supplier responsiveness.Ensure that meeting notes, supplier commitments, and follow-up actions are accurately documented and tracked within systems.Proactively identify at-risk parts and suppliers, mobilizing resources to safeguard manufacturing and program timelines.Process Discipline & Continuous ImprovementEnforce the consistent application of established supply chain processes while identifying and implementing improvements to enhance workflow efficiency.Champion continuous improvement initiatives to optimize supply chain operations.
Full-time|On-site|El Segundo, California, United States
Vardaspace is seeking a Mission Operations and Automation Engineer in El Segundo, California. This role centers on improving automation within mission operations for advanced space technologies. Role overview Work closely with teams from different disciplines to refine and implement automation processes. The focus is on increasing operational efficiency and reliability, directly supporting mission success. Impact The Mission Operations and Automation Engineer will help strengthen Vardaspace’s mission operations and contribute to the development of new space solutions. Collaboration and technical insight are key to supporting ongoing and future projects.
Internship|On-site|El Segundo, California, United States
Join vardaspace as a Mission Operations Intern for Fall 2026, where you will have the opportunity to engage in groundbreaking space operations and contribute to missions that truly matter. This internship is designed for aspiring professionals who are eager to learn and grow in a fast-paced environment.
Radiant Industries is on the lookout for a dedicated Accounts Payable Manager to spearhead our comprehensive accounts payable operations. Our team processes between 800 and 1,300 invoices monthly across various platforms including QuickBooks, ION, and Ramp, without the benefit of automatic integration or three-way match systems. This pivotal role entails overseeing the entire invoice-to-payment cycle, constructing a scalable AP infrastructure, and instituting the necessary controls and processes to facilitate our growth from prototype development to production ramp.As a hands-on leader, you will assume considerable responsibility, processing high volumes of invoices while concurrently developing systems, controls, and documentation that will support our expanding operations. You will collaborate closely with the Supply Chain team on procurement workflows and partner with Finance leadership on cash management strategies and ERP implementation planning.
Role overview The Lead Sales and Operations Planning Analyst at Mattel, Inc. guides the operational planning process to help products reach consumers smoothly and on time. This role sits in El Segundo and works closely with teams across the company to review data, forecast demand, and shape strategies that support business goals. What you will do Lead cross-functional groups through sales and operations planning cycles Analyze supply chain and sales data to inform decisions Forecast product demand and adjust plans as needed Develop strategies that align with company objectives Work environment This position influences supply chain operations and collaborates with a variety of teams. The work is both analytical and strategic, with a focus on improving how Mattel’s products move from planning to delivery.
Join Mattel, Inc. as a Manager of Investigations and play a pivotal role in upholding our reputation and integrity. In this dynamic position, you will lead investigations into potential fraud, misconduct, and compliance breaches, ensuring our operations align with ethical standards and legal regulations.Your expertise will guide teams in analyzing complex issues, strategizing solutions, and effectively communicating findings to senior management. We seek an individual with a strong investigative background, keen analytical skills, and a passion for safeguarding our company’s values.
Join Radiant IndustriesRadiant Industries, based in El Segundo, CA, is at the forefront of innovation, developing the world's first mass-produced portable nuclear microreactors. Our flagship reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor designed for mobility and efficiency, capable of providing power for up to five years without refueling. This groundbreaking technology aims to replace traditional diesel generators, offering vital support to hospitals, data centers, remote locations, and military bases. At Radiant, we combine cutting-edge software engineering with nuclear development to deliver safe, factory-constructed microreactors utilizing well-established materials. Established in 2020, we are gearing up to test our first reactor at the Idaho National Laboratory this summer, with plans for our first customer deliveries to commence in 2028.Your RoleWe are actively seeking a skilled IT Operations Manager who will spearhead our service delivery as we transition from a high-growth startup to a multi-site nuclear operator. In this pivotal role, you will oversee the team, systems, and processes that empower our employees across California, Idaho, and Tennessee to work securely and efficiently from Day 1. The ideal candidate will excel in managing a support team, overseeing a significant asset inventory exceeding $1M, and driving IT infrastructure projects for new facility developments. Close collaboration with our IT architecture, security, and HR teams is essential in this dynamic, compliance-focused environment.Key Responsibilities:Lead and mentor the IT Support team, including Helpdesk Associates and Leads, while establishing clear KPIs for ticket resolution, service quality, and user satisfaction.Manage the service desk platform (e.g., Freshservice, Jira Service Management) and create workflows that automate standard requests and highlight team performance metrics.Develop and sustain both internal and user-facing Knowledge Bases to transform tacit knowledge into documented, repeatable processes.Oversee the Joiner-Mover-Leaver process, ensuring 100%
About UsAt Picogrid, we are at the forefront of defense technology, committed to addressing the critical intersection of modern innovation and national security needs. Our mission is to create a cohesive infrastructure that integrates sensors, autonomy, and operational forces, empowering the United States and its allies with enhanced capabilities in active deployments worldwide.Position OverviewWe are seeking a dynamic Chief of Staff to collaborate closely with our Co-Founder & Head of Growth in steering pivotal initiatives across our sales and operational frameworks. This role positions you at the heart of our essential business decisions, facilitating the growth of our go-to-market organization while maintaining our momentum.The ideal candidate thrives in fast-paced environments, possesses exceptional problem-solving skills, approaches challenges with a first-principles mindset, and values teamwork. This position is tailored for an 'operator' who can fluidly navigate between strategic oversight and hands-on execution.Key ResponsibilitiesCollaborate with the Co-Founder / Head of Growth to strategize, prioritize, and implement critical initiatives across the go-to-market landscape.Lead and coordinate cross-functional projects involving engineering, operations, and government partners.Address immediate project management and scheduling needs, stepping in as the '0-to-1' lead for new customer engagements.Facilitate executive decision-making through comprehensive analysis, data insights, and robust operational practices.Experiment with and refine new go-to-market strategies, developing systems that enable our sales team to expand effectively.Oversee essential communications, including board materials, executive updates, proposals, and strategic documentation.QualificationsProven experience in a high-growth startup, management consulting (MBB), or investment banking.Outstanding analytical, written, and verbal communication abilities, including experience in crafting executive-level documents and presentations.Demonstrated success in managing cross-functional projects under tight deadlines.High level of discretion and sound judgment in handling sensitive information.
