Senior Principal Systems Engineering Integration & Test (SEIT) Lead - Airborne Navigation Systems Northrop Grumman CorpSenior Principal Systems Engineering Integration & Test (SEIT) Lead - Airborne Navigation SystemsWoodland Hills, CA$142,200–$213,400 / yearExperience developing and maintaining interface control documents (ICDs), including serial interfaces (e.g., RS-422/RS-485) and digital bus/network interfaces (e.g., ARINC 429, MIL-STD-1553, Ethernet-based avionics networks). You will partner closely with Program Managers, Chief Engineers, product owners, and discipline functional engineering leadership to ensure the system design meets customer needs and is rigorously validated and verified.
Multimedia Designer / Principal Multimedia Designer (AHT) Northrop Grumman CorpMultimedia Designer / Principal Multimedia Designer (AHT)Redondo Beach, CA$69,000–$103,400 / yearThis requisition may be filled at the Multimedia Designer or Principal Multimedia Designer level: Multimedia Designer - Bachelor''s degree in Instructional Systems Design, Instructional Technology, Human Performance, Training and Learning Development, Psychology, Marketing, or related discipline (and 2 years of relevant experience; or 0 Years with Masters) or 6 years of experience in lieu of degree may be considered. Principal Multimedia Designer - Bachelor''s degree in Instructional Systems Design, Instructional Technology, Human Performance, Training and Learning Development, Psychology, Marketing, or related discipline (and 5 years of relevant experience); or 3 Years with Masters; 0 Years with PhD) or 9 years of experience in lieu of degree may be considered.
Principal GNC Engineer Reflect OrbitalPrincipal GNC EngineerHawthorne, CaliforniaCome up with creative solutions to the unique problems that come with precisely putting a spot of reflected sunlight on the ground from space. Your work will span vehicle-level dynamics and control, orbit propagation, flight software and HITL testing on our avionics.
Principal Space Systems Engineer Mitre CorpPrincipal Space Systems EngineerEl Segundo, CA$162,400–$203,000 / yearDeep technical expertise in one or more of the following space-focused areas: space surveillance sensors, Space Domain Awareness, command and control, battle management command and control, space protection and resiliency, space threats and effects chains, intelligence, surveillance and reconnaissance, satellite communications, ground data transport and processing, enterprise data architectures, Space Control, astrodynamics, or space mission analysis. Demonstrated experience as a strategic space systems of systems thought leader, enterprise architect, chief engineer, or senior technical advisor focused on one or more of the following areas: the end-to-end system lifecycle, including concept development, system and enterprise architecture, requirements, interfaces, design, integration, test, verification and validation, deployment, operational transition, and technical risk management.
Principal GNC Engineer Reflect Orbital IncPrincipal GNC EngineerHawthorne, CACome up with creative solutions to the unique problems that come with precisely putting a spot of reflected sunlight on the ground from space. Your work will span vehicle-level dynamics and control, orbit propagation, flight software and HITL testing on our avionics.
Principal/Sr Principal Contract Administrator Northrop Grumman CorpPrincipal/Sr Principal Contract AdministratorNorthridge, CA$94,200–$141,200 / yearincluding Arms Export Control Regulations, FAR and DFARS; Knowledge and experience with Intellectual Property/Data Rights; Working knowledge of basic financial concepts; Excellent writing and presentation skills; Good presentation and writing/communication skills; Self-motivated, willing to learn, and interested in working in a team environment. AARGM-ER is a major upgrade to the AARGM AGM-88E missile, incorporating the existing, proven system architecture, avionics, data-link, and sensor subsystems of the legacy AARGM missile into an advanced air vehicle with significantly increased range and survivability to engage advances air defense systems.
Application Architecture, Principal Blue Cross and Blue Shield AssociationApplication Architecture, PrincipalLong Beach, CAThe platform is built around domain-owned microservices, reusable APIs, event-driven workflows, vendor integrations, and a marketplace of capabilities that can be composed across customers and product lines. You will own architecture direction for major platform capabilities and cross-domain initiatives, resolve high-impact technical risks and cross-team design conflicts, and stay close enough to the code and system design to make that direction credible to engineers.
Principal Spacecraft Operations Engineer - Secret Clearance Rocket Lab USAPrincipal Spacecraft Operations Engineer - Secret ClearanceLong Beach, CA$173,300–$259,850 / yearThorough understanding of key spacecraft subsystems and associated components, including attitude determination and control systems (ADCS), electrical power systems (EPS), space-to-ground communications, command and data handling (C&DH), thermal control systems (TCS), spacecraft propulsion systems, and fault detection, isolation, and recovery (FDIR). To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), Rocket Lab Employees must be a U.S. citizen, lawful U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum, or be eligible to obtain the required authorizations from the U.S. Department of State and/or the U.S. Department of Commerce, as applicable.
Principal Optical Engineer (Starfall) Space Exploration TechnologiesPrincipal Optical Engineer (Starfall)Hawthorne, CA$190,000–$285,000 / yearExperience designing mixed-signal circuits, processors, FPGAs, Ethernet, SERDES, DRAM interfaces (DDR4), I2C, SPI, operational amplifiers, analog-to-digital and digital-to-analog converters, and power supply components. You will set product vision at the system level, lead design of optics, detectors, circuit boards, precision mechanisms, and mechanical enclosures that must survive extreme loads and the harsh environment of space, and ensure the product can be manufactured at high rate.
Principal Fluid Systems Engineer - Payloads Varda Space Industries IncPrincipal Fluid Systems Engineer - PayloadsEl Segundo, CA$181,913–$232,444 / yearAs a Principal Fluid Systems Engineer on Varda''s Payload team, you will define and lead the development of first-of-its-kind electromechanical fluid handling hardware that manufactures pharmaceuticals in microgravity, endures hypersonic reentry, and returns to Earth for material extraction. Varda was founded in January 2021 by Will Bruey and Delian Asparouhov with significant backing from world class investors including Khosla Ventures, Lux Capital, Founders Fund, Caffeinated Capital, General Catalyst, and Also Capital.
Managing Principal, Building Structures HNTB CorporationManaging Principal, Building StructuresLos Angeles, CA$216,716.23–$346,183.07 / yearWorking closely with office, division, and national leadership, you will help define growth strategies, strengthen key client relationships, and pursue opportunities that expand HNTB's presence in both established and emerging markets. If you are energized by growing a practice, developing talent, and shaping the future of structural engineering within one of the industry's most respected firms, we invite you to join us and help define the next chapter of our Building Structures practice.
Principal Cloud Security Engineer Rocket Lab USAPrincipal Cloud Security EngineerLong Beach, CA$152,300–$165,000 / yearImportant information: FOR CANDIDATES SEEKING TO WORK IN US OFFICES ONLY: To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), Rocket Lab Employees must be a U.S. citizen, lawful U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum, or be eligible to obtain the required authorizations from the U.S. Department of State and/or the U.S. Department of Commerce, as applicable. Additional perks include subsidized EV charging, onsite fitness centers (where available), discounted gym memberships, complimentary snacks and beverages, 50% employee discount on our popular merch store, and a variety of other employee discounts.
Principal AI Product Manager, US West MonroePrincipal AI Product Manager, USLos Angeles, New York$154,400–$181,500 / yearExperience leveraging AI tools across the software development lifecycle, including: AI-assisted development tools (e.g., GitHub Copilot, Amazon CodeWhisperer, Cursor, Replit Ghostwriter) to accelerate coding and engineering workflows. You will partner with executive-level client stakeholders to define product strategies and lead the adoption of AI-driven approaches that improve engineering velocity, product quality, and delivery outcomes.
Senior Principal, Energy & Utilities, Distributed Energy Resource Management Systems (DERMS) West MonroeSenior Principal, Energy & Utilities, Distributed Energy Resource Management Systems (DERMS)Los Angeles, California$203,800–$239,800 / yearYou will act as both a trusted advisor and solution leader, translating complex DER and grid-edge challenges into actionable programs and measurable outcomes, while helping grow West Monroe’s DERMS business. You’ll also play a key role in growing our DERMS practice and market presence, working alongside a collaborative, high-caliber team across grid and IT/OT domains, offering both immediate impact and the opportunity to build something meaningful in a high-growth environment.
Principal Rfic Engineer (Starshield Silicon) Space Exploration TechnologiesPrincipal Rfic Engineer (Starshield Silicon)Hawthorne, CA$210,000–$340,000 / yearCircuit design skills, and experience performing analysis and simulation of both linear and non-linear circuits such as phase-locked loops, vector modulators/demodulators, oscillators, mixers, filters, low noise and power amplifiers. You will work in a highly collaborative and fast-paced environment, where we are exploring unsolved problems and applying the SpaceX mindset of iterating rapidly to go from design and demo to operational capability at lightning pace.
Principal Electrical Engineer, Integration & Test Success Matcher RecruitmentPrincipal Electrical Engineer, Integration & TestEl Segundo, California$200,000–$315,000 / yearClean-Sheet Technical Ownership: Build the hardware-in-the-loop (HIL) environment from scratch, select platforms, simulate reactor sensors/actuators, and establish the overarching validation strategy. Strong background in system integration, validation, and real-time test platforms (NI PXI, dSPACE, Speedgoat, LabVIEW, TestStand, Python, C++, or similar).
Principal Cybersecurity Engineer (Starshield) SpaceXPrincipal Cybersecurity Engineer (Starshield)Hawthorne, CA$225,000–$340,000 / yearBachelor’s degree in computer science, computer engineering, computer security, or a similar field, and 7+ years of professional experience in cybersecurity for active production systems; OR 10+ years of experience in cybersecurity for active production systems. To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.
Principal Software Engineer FloqastPrincipal Software EngineerLos Angeles, CA$185,000–$301,000 / yearCross-Functional Partnership: You'll act as the bridge between "what's possible" and "what's needed," partnering deeply with Product and Design to translate ambiguous business goals into executable technical roadmaps for intuitive, agentic accounting automation. You don't build for the sake of complexity; you build to drive business impact, solve real customer pain points, and empower accounting teams to automate rules-based workflows.
Principal Software Engineer, Continuous Integration (Starship) Space Exploration TechnologiesPrincipal Software Engineer, Continuous Integration (Starship)Hawthorne, CA$200,000–$285,000 / yearAerospace experience is not required to be successful here - rather we look for smart, motivated, collaborative engineers who love solving problems and want to be a force multiplier for building world class software that is critical to SpaceX's mission to make life multiplanetary. BASIC QUALIFICATIONS: 7+ years of software engineering experience and a Bachelor's degree in computer science, engineering, math, or STEM discipline; OR 9+ years of professional experience in software development in lieu of a degree.
Product Development, Associate Principal Scientist Liquid IVProduct Development, Associate Principal ScientistEl Segundo, CA$116,100–$145,100 / yearWe know that the happiest and highest performing teams include people with diverse perspectives that encourage new ways of solving problems, so we strive to attract and develop talent from all backgrounds and create workplaces where everyone feels seen, heard, and empowered to bring their full, authentic selves to work. Strong working knowledge of food science, health and nutrition, food manufacturing processes, quality assurance principles, product development systems and processes, ingredient supply market, as well as scale up and product commercialization.