Principal Communication Systems Engineer I CesiumAstroPrincipal Communication Systems Engineer IEl Segundo, CA$148,500–$199,000 / yearPlease 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. In this position, you will help develop space architecture concepts, sub-system design, payload design, requirements development, analysis and decomposition, high-level software and hardware system architecture design, concept of operations (CONOPS) development, and risk assessment.
Principal Product Manager (Bulk Property Data) CoreLogicPrincipal Product Manager (Bulk Property Data)Irvine, CA7-10+ years proven experience in high-tech business management, product management or marketing which includes some combination of forecasting and budgeting, product and/or business strategy determination, market research, pricing analysis and/or product development. This role is responsible for managing products and services through the development cycle as well as working with and influencing sales, marketing, finance, analytics, operations, implementation and product development, and senior management to achieve revenue and profit goals.
Principal Mechanical Engineer Salient MotionPrincipal Mechanical EngineerTorrance, California$200,000–$230,000 / yearRequirements Architecture: Translate high-level, ambiguous mission needs into actionable functional and operational requirements for complex electromechanical systems, including spacecraft structures, docking and release mechanisms, robotic arm systems, and military-grade ground support hardware. Cross-Functional Leadership: Act as a technical anchor across the organization, guiding integration efforts, supporting multidisciplinary teams through complex system testing, and authoring test plans, procedures, proposals, and associated program documentation.
Principal Technical Product Manager - AI Integration CoreLogicPrincipal Technical Product Manager - AI IntegrationIrvine, CAWorking knowledge of how large language models consume tools - function calling, tool descriptions, context windows, and the failure modes that arise when AI agents interact with external data sources. You understand what good developer experience feels like because you've been the developer - you've integrated against third-party APIs, read bad documentation, and know the difference between a portal that accelerates adoption and one that generates support tickets.
Principal Data Engineer – AWS Cloud | Irvine, CA | 100% Onsite | Long Term Contract - AS Central Business SolutionsPrincipal Data Engineer – AWS Cloud | Irvine, CA | 100% Onsite | Long Term Contract - ASIrvine, CaliforniaThis is a hands-on engineering role requiring strong coding skills, cloud architecture knowledge, and experience working with large-scale data processing systems. We are seeking a highly skilled Senior Data Engineer with deep expertise in AWS Cloud to join a high-performing engineering team in Irvine, CA.
Principal, Capital Markets And Strategy Harbinger MotorsPrincipal, Capital Markets And StrategyGarden Grove, CA$140,000–$150,000 / yearHarbinger may use your Candidate Personal Data for the purposes of (i) tracking interactions with our recruiting system; (ii) carrying out, analyzing and improving our application and recruitment process, including assessing you and your application and conducting employment, background and reference checks; (iii) establishing an employment relationship or entering into an employment contract with you; (iv) complying with our legal, regulatory and corporate governance obligations; (v) recordkeeping; (vi) ensuring network and information security and preventing fraud; and (vii) as otherwise required or permitted by applicable law. Harbinger may share your Candidate Personal Data with (i) internal personnel who have a need to know such information in order to perform their duties, including individuals on our HR, legal, and finance teams, and the team(s) with the position(s) for which you are applying; (ii) Harbinger affiliates; and (iii) Harbinger's service providers, including providers of background checks, staffing services, and cloud services.
Principal Technical Director, AI-Enabled Spectrum Dominance Voyager TechnologiesPrincipal Technical Director, AI-Enabled Spectrum DominanceLos Angeles, Washington$225,000–$300,000 / yearArchitect complete RF systems bridging DSP algorithms, software-defined radio (SDR) hardware, FPGA/SoC platforms, and high-level mission software, ensuring seamless integration across the entire signal chain for both space and ground segments. We are seeking a Principal Technical Director, AI-Enabled Spectrum Dominance to serve as the senior technical leader for our advanced RF systems, software, algorithms, and agentic AI portfolio as applied to space-based and terrestrial electromagnetic warfare and sensing.
Pipeline / Instrumentation & Controls Principal Engineer E2 Consulting Engineers, Inc.Pipeline / Instrumentation & Controls Principal EngineerLos Angeles, California$140,000–$180,000 / yearFull timeAbout the Organization: E2 Consulting Engineers, LP (E2) is a professional services firm established in 1988 specializing in a full spectrum of engineering services including, project engineering and design, federal base operations and infrastructure support services, gas pipeline construction and inspection services, environmental consulting and remediation, and information technology services. Prepare designs involving pressure, flow, and temperature transmitters; gas detection equipment; remote control valves; control valves; flow meters; pressure regulators; programmable logic controllers; remote terminal units; control panels; and communications equipment.
Title: Principal AI Engineer – Agentic AI | Contract to Hire | Irvine, CA (Hybrid) | AS Central Business SolutionsTitle: Principal AI Engineer – Agentic AI | Contract to Hire | Irvine, CA (Hybrid) | ASIrvine, CaliforniaThe ideal candidate will have strong experience building LLM-powered applications, AI agents, RAG solutions, tool-calling workflows, and data-grounded AI systems, with a strong focus on accuracy, trust, scalability, and production readiness. We are seeking a Senior/Principal AI Engineer to design and build production-grade Agentic AI and Generative AI applications that enable Client's executives to interact with operational data through a conversational interface.
Principal Build Reliability Engineer Castelion CorporationPrincipal Build Reliability EngineerTorrance, CaliforniaHands-on development of design for manufacturability through ensuring identification of key characteristics, prototype testing for manufacturability, First Article and Detailed Inspection planning, evaluation of previous non-conformances and lessons learned, and other manufacturing and quality tools as required. Participating in Preliminary Design Review (PDR) / Critical Design Review (CDR) to ensure design for quality (DFQ), design for manufacturability (DFM), risk quantification and mitigation, and that appropriate test validation methods and inspection techniques, including nondestructive evaluation methods, have been considered.
Principal Data Engineer (Python, AWS, Redshift, EMR, Airflow, Databricks, Big data) | Contract to Hire | Irvine, CA (Hybrid) | Central Business SolutionsPrincipal Data Engineer (Python, AWS, Redshift, EMR, Airflow, Databricks, Big data) | Contract to Hire | Irvine, CA (Hybrid) |Irvine, CaliforniaLead the creation of data environments and/or data sets to serve a wide range of data users, including but not limited to Data Scientists, Data Analysts, Business Analysts etc. Expertise with programming languages - Python (required), Scala, Ruby, R Database technologies - SQL, performance tuning concepts, AWS RDS, RedShift, MySQL.
Principal Data Scientist, Pricing UP.LabsPrincipal Data Scientist, PricingLos Angeles, CaliforniaThis is a rare chance to work alongside a market leader with unmatched freight data depth, tackling pricing problems that have plagued carriers, brokers, and shippers for decades. About the Role We're partnering with one of the largest freight and logistics companies in North America to reinvent how the trucking industry prices, bids, and captures value.
Principal GNC Engineer OutpostPrincipal GNC EngineerLos Angeles, CAGetting mass from orbit to a precise point on the ground is a GNC problem end to end: a deorbit burn that has to hit an entry corridor, a hypersonic entry that has to bleed energy inside structural and thermal limits, and a guided descent that has to land on a target, repeatably, and cheaply enough to do it often. Implement control of aerodynamically unstable or marginally stable vehicles, gain scheduling and robust control across wide Mach and dynamic pressure ranges, actuator and effector allocation, autonomous mode sequencing and abort logic.
Principal Welding Engineer Impulse SpacePrincipal Welding EngineerRedondo Beach, CA$190,000–$225,000 / yearAs a Principal Weld Engineer at Impulse you will help develop, qualify and optimize welding designs and processes with both laser beam, gas tungsten arc welding, friction stir welding, and orbital tube welding. Develop, optimize, and qualify weld processes and parameters for multiple welding processes including but not limited to: laser beam welding, friction stir welding, gas tungsten arc welding, orbital tube welding.
Principal Manager - Systems Innovation SuperbTech,Inc.Principal Manager - Systems InnovationRosemead, CAAs a trusted technical and strategic leader, you will partner across engineering, operations, IT, and regulatory teams to translate innovation into scalable, real-world outcomes that advance reliability, affordability, and system performance. In this role, you will lead the development and adoption of next-generation grid capabilities, identifying where new technologies can deliver the greatest value and defining strategies to integrate them into long-term system planning.
Principal Field Clinical Specialist - Mitral & Tricuspid (West) MedtronicPrincipal Field Clinical Specialist - Mitral & Tricuspid (West)Los Angeles, CaliforniaRemoteThe following benefits and additional compensation are available to those regular employees who work 20+ hours per week: Health, Dental and vision insurance, Health Savings Account, Healthcare Flexible Spending Account, Life insurance, Long-term disability leave, Dependent daycare spending account, Tuition assistance/reimbursement, and Simple Steps (global well-being program). If you are applying to perform work for Medtronic, Inc. (“Medtronic”) in any position which will involve performing at least two (2) hours of work on average each week within the unincorporated areas of Los Angeles County, you can find here a list of all material job duties of the specific job position which Medtronic reasonably believes that criminal history may have a direct, adverse and negative relationship potentially resulting in the withdrawal of a conditional offer of employment.
Principal, Software Engineer Alcon ResearchPrincipal, Software EngineerLake Forest, CaliforniaCollaborate closely with the software development teams, Technical Support, Field Service, Manufacturing, Clinical and other operation organizations to support necessary software changes initiated by reported anomalies, changes in use cases, material or hardware changes that impact software, cybersecurity, regulatory updates, and other. The Principal Software Engineer collaborates closely with onshore and offshore development and V&V teams throughout the software development lifecycle, providing technical inputs for testing, validating software modifications, supporting troubleshooting activities, and maintaining software configuration management.
Principal Opto-Mechanical Engineer Alcon ResearchPrincipal Opto-Mechanical EngineerLake Forest, CaliforniaApply in-depth knowledge of Opto-Mechanical Engineering in Ophthalmic related Diagnostic & Visualization surgical instrumentation domain as SME across a range of engineering disciplines including, Mechanical Design, Opto-mechanics, Optics, Fiber Optics, Material Science, Precision Machining, Imaging, Illumination, Microscope and Optical Systems Design. Perform Opto-mechanical design including lens barrel and lens housing design, lens bonding and mounting techniques, and opto-mechanical analysis including thermal, environmental, shock & vibration, system integration and stability tolerance study.
Principal Propulsion Engineer, Engine Systems & Test Relativity SpacePrincipal Propulsion Engineer, Engine Systems & TestLong Beach, CA$185,000–$277,000 / yearAny unsolicited submission - via email, our website, social media, or directly to an employee - will be deemed the property of Relativity Space, and no fee will be owed absent a current, fully executed agreement with Talent Acquisition that specifically authorizes submissions for the applicable role. In engineering at the system level, you will be expected not just to coordinate & facilitate amongst other technical teams, but to bring your own deep technical acumen to bear on problems in this highly technical role.
Principal Software Engineer (Medical Device Software/C#, .NET, Windows) Alcon ResearchPrincipal Software Engineer (Medical Device Software/C#, .NET, Windows)Lake Forest, CaliforniaYou will work closely with systems engineering, hardware, quality, regulatory, and product management teams to ensure that software solutions meet performance, reliability, cybersecurity, and regulatory requirements for medical devices onsite in Lake Forest, CA . As a Principal Software Engineer, you will serve as a technical leader responsible for architecting, designing, and developing complex Windows-based software applications that support Alcon's next-generation ophthalmic diagnostic and surgical medical devices.