Principal Engineer /Architect Full Stack BOLDPrincipal Engineer /Architect Full StackIrvine, CA$145,000–$155,000 / yearContractorFull timeBuild proofs of concept and contribute production-grade code. Lead large-scale platform modernization initiatives.
NewPrincipal Engineer veritonePrincipal EngineerIrvine, CA$200,000–$230,000 / yearPartner with engineering, product, and executive leadership to solve complex technical challenges, mentor development teams, and establish engineering best practices that support innovation and long-term business growth. The Principal Engineer will provide technical leadership and architectural direction for the company's AI-powered SaaS platform, driving the design and delivery of scalable, secure, and high-performing software solutions.
NewPrincipal Structural Engineer JobotPrincipal Structural EngineerOrange, CA$156,000–$220,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. The firm provides innovative solutions across diverse markets, supporting technically complex projects that require regulatory rigor, cost control, schedule discipline, and creative structural design.
NewPrincipal Forensic Structural Engineer JobotPrincipal Forensic Structural EngineerOrange, CA$156,000–$220,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. The firm provides innovative solutions across diverse markets, supporting technically complex projects that require regulatory rigor, cost control, schedule discipline, and creative structural design.
NewPrincipal Engineer (Civil, Wastewater, & Environmental) JobotPrincipal Engineer (Civil, Wastewater, & Environmental)Anaheim, CA$150,000–$200,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Employee development is a core priority, ensuring our clients are supported by skilled project managers who understand every aspect of a project’s technical needs, schedule, budget, and quality.
NewPrincipal Subcontracts L3Harris TechnologiesPrincipal SubcontractsAnaheim, CA$133,000–$247,000 / yearLead development and execution of comprehensive supply chain strategies across the full program lifecycle; coordinate supplier strategy development with Category Management and communicate program changes to executive leadership. Manager, Supply Chain Program Management for the Maritime Acoustic & Imaging Systems (A&IS) Supply Chain Team will serve as a senior contributor and leader supporting primarily the Acoustics Systems area.
NewCivil Senior Principal Engineer in Land Development Cannon CorpCivil Senior Principal Engineer in Land DevelopmentIrvine, CA$150,000–$220,000 / yearThis role is responsible for project management, budgeting oversight, mentoring, leading, and managing talented staff, preparing engineering reports and analyses, design and preparation of plans, specifications, and cost estimates for a variety of clients and great projects (residential / commercial and mixed-use development) for land development projects in the Inland Empire. 5+ years demonstrated experience supervising and successfully managing projects within the constraints of scope, schedule, budget, and performance requirements, providing technical oversight for projects and all related project phases and tasks, to include quality assurance reviews.
NewCivil Senior Principal Engineer in Water Resources Cannon CorpCivil Senior Principal Engineer in Water ResourcesIrvine, CA$150,000–$220,000 / yearReporting to the Director of Water Resources, this role will conduct and drive business development efforts with Orange County agencies and clients; oversee and manage a diverse portfolio of wastewater, water treatment, and other water resource projects; mentor engineers; and provide excellent client service and delivery. PROJECTS INCLUDE Wastewater Treatment Facilities, Collection Facilities, Water Distribution Systems, Water Treatment Plants, Storm Drainage Collection Systems and Facilities, Water Main Replacements, Potable Water Pump Stations and Reservoirs.
NewPrincipal Opto-Mechanical Design Engineer Attalon, Inc.Principal Opto-Mechanical Design EngineerTustin, CA$141,091–$193,999 / yearCreate highly complex designs, collaborate with cross‑functional partners to ensure optimal system performance, and deliver fast, efficient opto‑mechanical concepts using 3D solid‑modeling tools aligned with customer requirements. Attalon develops and produces mission‑critical optical systems, precision coatings, and advanced laser subsystems used in ISR&T, space, missile, and directed‑energy applications.
NewPrincipal Supplier Quality Engineer CesiumAstroPrincipal Supplier Quality EngineerEl Segundo, CAJob Description Please Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State. Establish and analyze supplier performance metrics including defect rate, nonconformances, on-time delivery, cost of rework/scrap, and supplier corrective action resolution.
NewPrincipal Product Quality Engineer EpirusPrincipal Product Quality EngineerTorrance, CA$139,300–$160,000 / yearExperience leading cross-functional teams to solve highly visibility quality issues, drive continual improvement initiatives, and facilitate the adoption of quality requirements in the product development process. 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. .
NewPrincipal Power Electronics Engineer I CesiumAstroPrincipal Power Electronics Engineer IEl Segundo, CAIn this position, you will contribute across the entire development lifecycle of next-generation power electronics hardware for satellites and space power systems payloads—from leading the definition of power system architectures and trade studies to detailed circuit design, simulation, printed circuit board (PCB) layout, verification and integration testing, production transition, and manufacturing support. Experience working with electrical power systems and subsystems, including developing power architecture and power requirements, performing trade studies for size, weight, power, and cost optimization (SWAP-C), selecting power converter topologies, and defining power management and control blocks.
NewPrincipal Power Electronics Engineer Long WallPrincipal Power Electronics EngineerLong Beach, CAPrincipal Power Electronics Engineer As a Power Electronics Engineer, you will lead the development, design, build, and commissioning of power conversion systems at Long Wall to support product tests, operations, and launches. You will have the opportunity to be a key member of a small team of mechanical, fluid, and electrical engineers working to develop innovative deployable launch solutions that enable the rapid deployment of Long Wall launch and test systems.
NewPrincipal Electronics Engineer ALTEN Technology USAPrincipal Electronics EngineerCarson, CA$130,000–$145,000 / yearThis is a hands-on principal-level role for an engineer who has previously held an equivalent position and is ready to take ownership of the full electrical design lifecycle — from schematic and PCB layout through contract manufacturing, production support, and in-service root cause investigation. Lead and contribute directly to PCB layout activities, including component placement, power/signal routing, thermal management, and layout for high-current and high-frequency power stages.
NewPrincipal Thermal-Hydraulics & Safety Analysis Engineer BlueCore EnergyPrincipal Thermal-Hydraulics & Safety Analysis EngineerLong Beach, CAPrincipal Thermal-Hydraulics & Safety Analysis Engineer About the Role The Principal Thermal-Hydraulics & Safety Analysis Engineer operates at the critical intersection of fluids, structural mechanics, and safety. Physical & Machinery Requirements: Because we are a hands-on startup, this role may require the ability to perform physical labor, navigate active construction/manufacturing zones, and/or operate heavy machinery and specialized manufacturing equipment as needed.
NewPrincipal CAD Designer CesiumAstroPrincipal CAD DesignerEl Segundo, CAThe Principal CAD Designer serves as a key technical resource supporting engineering teams through design execution, product data management, engineering change implementation, and continuous improvement of CAD processes and documentation practices. Job Description Please Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State.
NewPrincipal FPGA Engineer AstrolabPrincipal FPGA EngineerHawthorne, CADevelop FPGA logical architecture and requirements in collaboration with other engineering disciplines including defining HW/SW interfaces between fabric logic and processing subsystems. We are singularly focused on designing, building, and operating a fleet of multi-purpose commercial planetary rovers to extend and enhance humanity’s presence in the solar system.
NewPrincipal Mechanical Engineer ThinKom SolutionsPrincipal Mechanical EngineerHawthorne, CA$140,000–$180,000 / yearThis role offers the opportunity to serve as the lead mechanical engineer on key programs while providing technical leadership, mentoring junior engineers, and contributing to multiple product development efforts across the organization. At ThinKom, you'll help develop innovative technologies that enable critical communications and advanced electromagnetic systems for Commercial Inflight Connectivity (IFC), High-Power Microwave (HPM), and Gateway & Defense SATCOM applications.
NewPrincipal Mechanical Design & Analysis Engineer, Tooling Relativity SpacePrincipal Mechanical Design & Analysis Engineer, ToolingLong Beach, CA$185,000–$277,000 / yearClose collaboration with component designers, manufacturing engineers, and integration engineering to achieve the best possible cradle to grave metrics (safety, cost, quality, cycle time, delivery, reliability, life, and maintenance/refurbishment). As a design group embedded within the manufacturing organization, we dig deep into the needs of our internal partners to understand root problems, propose solutions, and deliver hardware to help build faster, scale smarter, and work better.
NewPrincipal Mechanical Engineer, Factory Automation Relativity SpacePrincipal Mechanical Engineer, Factory AutomationLong Beach, CA$185,000–$277,000 / yearClose collaboration with component designers, manufacturing engineers, and integration engineering to achieve the best possible cradle to grave metrics (safety, cost, quality, cycle time, delivery, reliability, life, and maintenance/refurbishment). As a design group embedded within the manufacturing organization, we dig deep into the needs of our internal partners to understand root problems, propose solutions, and deliver hardware to help build faster, scale smarter, and work better.