Principal Founding Full Stack Software Engineer VamoPrincipal Founding Full Stack Software EngineerLos Angeles, CaliforniaExperience developing AI applications with Large Language Models (LLMs) and systems such as retrieval-based methods, fine-tuning, or agent-based architectures, and experience with AI frameworks like Langchain, Llama Index, OpenAI, or similar tools. Background: Our partner is a Y-Combinator backed development platform for product & engineering teams building LLM features into their software.
Senior/Principal Mission Software Engineer HermeusSenior/Principal Mission Software EngineerLos Angeles, CA$128,250–$156,750 / yearAbout The Role: The Mission Systems Engineering team develops the Mission Management System-the software platform connecting mission subsystems, autonomy services, operator interfaces, communications links, and telemetry across Hermeus aircraft and ground systems. Preferred Skills and Experience: Experience with mission systems, command-and-control software, mission planning, ground-control systems, autonomy platforms, or operator-facing applications.
Principal Software Engineer - Identity Graph Twilio IncPrincipal Software Engineer - Identity GraphCA$188,240–$235,300 / yearPartner closely with product and engineering leadership to manage expectations, set direction, and turn initial concepts into actionable plans, Collaborate across Twilio and Stytch teams to align on architecture, integrate platform capabilities and unblock cross-team initiatives. Wrangle ambiguity and execute with a bias for action in grey areas - proactively breaking down undefined problems, making pragmatic architectural trades offs and helping write requirements instead of waiting for them.
Principal/Sr. Principal Embedded Software Engineer (Active Secret) Northrop Grumman CorpPrincipal/Sr. Principal Embedded Software Engineer (Active Secret)Redondo Beach, CA$114,000–$171,000 / yearThe Western Region Software Engineering organization comprises over 800 highly skilled professionals, including Software Engineers, DevOps Engineers, Database Administrators, and Network Engineers, at all levels-ranging from early-career engineers to senior chief engineers and architects. Basic Qualifications - Principal Flight Software Engineer (Level 3): Bachelor''s degree in a STEM discipline with 5+ years of software or relevant engineering experience; Master''s degree in a STEM discipline with 3+ years of stated experience; Ph.
Principal Software Engineer - Backend Autodesk IncPrincipal Software Engineer - BackendCalifornia, CA$139,000–$249,260 / yearThis role is anchored in backend software engineering excellence: designing, building, and evolving scalable services, APIs, and event-driven systems that operate at enterprise scale. Provide principal-level technical leadership across multiple backend and platform teams, shaping architecture and technical strategy beyond a single squad or service.
NewPrincipal Software Engineer, CDN (Starlink) Space Exploration TechnologiesPrincipal Software Engineer, CDN (Starlink)Hawthorne, CA$255,000–$340,000 / yearITAR REQUIREMENTS: 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. You may also be eligible for long-term incentives, in the form of company stock, stock options, or long-term cash awards, as well as potential discretionary bonuses and the ability to purchase additional stock at a discount through an Employee Stock Purchase Plan.
Principal Software Engineer Cars.com IncPrincipal Software EngineerCA$175,800–$219,750 / yearWhether through our No.1 most recognized marketplace, Cars.com, our industry-leading digital experience, Dealer Inspire, our trade and appraisal technology, AccuTrade, our reputation-based digital wholesale auction marketplace, Dealerclub, or our new Cars Commerce Media Network, Cars Commerce is essential for success in the automotive industry. You have a track record of evaluating emerging technologies (e.g., NewSQL, Edge Computing, or Agentic AI) and running proof-of-concepts that modernize the tech stack without disrupting production stability.
Principal Software Engineer, AI SIEM SentinelOne IncPrincipal Software Engineer, AI SIEMCA$216,000–$297,000 / yearOur AI SIEM ingests petabytes of data per day, powers the analyst workflows that turn that data into alerts, findings, assets, and incidents, and drives the detection engines, both rule-based and AI-driven, that catch what matters. Ideal candidates will have: Deep experience (15 or more years) building and operating large-scale distributed backend systems, with direct experience in at least two of: high-throughput data ingest/storage, query engines, or detection/rules systems.
Principal Software Engineer, Continuous Integration Starship Space Exploration Technologies CorpPrincipal Software Engineer, Continuous Integration StarshipHawthorne, 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.
Principal Software Engineer, Vehicle Analysis (Structures & Dynamics) Turion SpacePrincipal Software Engineer, Vehicle Analysis (Structures & Dynamics)Irvine, CaliforniaYou will embed with our structures and dynamics analysts and build the pipelines behind quasi-static, modal, random vibration, shock, and coupled loads analysis, plus the tooling that correlates models to vibration and modal survey test data. Build parametric finite element model generation from CAD, including automated defeaturing, meshing, connections, and mass representation, so a design revision produces an updated model without hand rebuild.
Principal Software Engineer (Location Services) CotalityPrincipal Software Engineer (Location Services)Irvine, CaliforniaCotality is committed to cultivating a diverse and inclusive work culture that inspires innovation and bold thinking; it's a place where you can collaborate, feel valued, develop skills and directly impact the real estate economy. The Principal Engineer operates with broad scope and influence, partnering closely with engineering leaders, product teams, and stakeholders to align technical outcomes with business priorities.
Principal Software Engineer CotalityPrincipal Software EngineerIrvine, CaliforniaServe as a senior technical enablement resource across engineering teams - writing skills, context files, and AI workflow configurations that make teams AI-native in their actual repos. This senior-level position is responsible for creating scalable, high-quality software solutions while providing technical leadership, driving engineering excellence, and providing mentorship to engineering teams.
Engineer / Principal Engineer Software - Cloud & Applications Northrop Grumman CorpEngineer / Principal Engineer Software - Cloud & ApplicationsEl Segundo, CA$79,300–$137,600 / yearPrincipal Engineer: Bachelor's Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline and 5 years of related engineering experience; OR a Master's degree in a STEM discipline and 3 years of related engineering experience OR a PhD degree in a STEM discipline and 1 year of related engineering experience. Basic Qualifications: Engineer: Bachelor's Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline and 2 years of related engineering experience; OR a Master's degree in a STEM discipline and 0 years of related engineering experience.
Principal Software Engineer Guitar Center CompanyPrincipal Software EngineerWestlake Village, CA$150,000–$190,000 / yearFull timeResponsibilities will include, but will not be limited to the following: Systems Architecture & Design: Lead the design of scalable microservices and API-driven architectures that support real-time inventory, Point of Sale (POS), and warehouse management systems. Requirements Gathering & Specification: Partner with Supply Chain and Retail Product Managers to translate complex business workflows into high-availability technical specifications.
Principal Software Engineer, Rendering - Unpublished R&D Product Riot Games IncPrincipal Software Engineer, Rendering - Unpublished R&D ProductLos Angeles, CAYou'll collaborate with teams to ensure high quality and stack applicability, and provide other engineers with a clear illustration of extraordinary engineering. As a Principal Software Engineer focused on graphics on the unpublished MMO team, you are responsible for helping Riot build and deliver a brand new game!
Principal Software Engineer, AI Enablement - Central Product Riot Games IncPrincipal Software Engineer, AI Enablement - Central ProductLos Angeles, CAOperating as part of an elite, highly mobile strike team, you will build production-ready AI integrations, develop robust developer tools, and level up partner engineers through side-by-side collaboration. Embed and Accelerate: Deploy onto partner teams across Riot to break down complex AI implementation problems, establish technical direction, and deliver scalable, highly performant solutions.
NewPrincipal 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.
Principal Software Engineer, Manufacturing Systems Neros TechnologiesPrincipal Software Engineer, Manufacturing SystemsTorrance, California$214,500–$300,000 / yearExperience working with cross-functional stakeholders outside engineering, including operations, manufacturing, warehouse, supply chain, quality, finance, or business systems teams. Design and build production software for factory execution, including work orders, routing, material issue/consume, completion, serialization, genealogy, rework, and exception handling.
Senior/Staff/Principal Qt C++ Software Engineer Horizon Surgical SystemsSenior/Staff/Principal Qt C++ Software EngineerLos Angeles, CaliforniaThis role requires a deep understanding of the software development life cycle, strong in C++, Python, Java, and JavaScript programming, and records of success in building product-level scalable systems and cross-functional collaboration. Microsurgery in general and Ophthalmology are subfields of surgery for which the surgical outcomes can be significantly improved by robotic systems to allow superior dexterity, precision, accuracy, and visualization beyond the human surgeon’s own capabilities.
Principal Software Engineer CHAOS IndustriesPrincipal Software EngineerHawthorne, California$180,000–$290,000 / yearCompensation Components: Competitive base salaries, generous pre-IPO stock option grants, relocation assistance, and (coming soon!) annual bonuses. Salary range: $180,000 - $290,000 The stated compensation range reflects only the targeted base compensation range and excludes additional earnings such as bonus, equity, and benefits.