Senior Principal Software Engineer - Accelerated Verification IP CadenceSenior Principal Software Engineer - Accelerated Verification IPSan Jose, CA$154,000–$286,000 / yearTogether, AVIP and VB are critical to customers building high‑performance compute, AI, networking, and memory‑coherent systems, where early software bring‑up, performance analysis, and protocol compliance are essential. This role will contribute directly to the development and enhancement of PCIe/CXL AVIP and/or PCIe/CXL Virtual Bridge products, focusing on protocol functionality, performance, and robustness.
4328-Principal Software Engineer Innovaccer4328-Principal Software EngineerSan Francisco, CAExperience building and integrating AI/ML into products - connecting models to real systems, handling data flows, and operationalizing them in production (you don't need to be a research scientist, but you should be comfortable building AI/ML-powered features). You'll personally design and build the hardest, highest-impact parts of our platform - backend services, data pipelines, and the AI/ML-powered features that increasingly define our products - while setting the technical bar for how those systems are built.
Sr. Principal Software Engineer CadenceSr. Principal Software EngineerSan Jose, CA$154,000–$286,000 / yearWork closely with product engineers/technical sales to provide engineering solutions and workarounds to make customers successful. Essential Job Functions/Accountabilities: The candidate will be responsible for designing, developing, troubleshooting and debugging software programs in the areas of physical synthesis.
Principal Software Engineer In Test (Sdet) D-MatrixPrincipal Software Engineer In Test (Sdet)Santa Clara, CAYou will own the development and continuous improvement of d-Matrix's end-to-end and regression test infrastructure, bringing rigor and scalability to quality across the full stack - from low-level firmware and hardware interfaces up through runtime and ML workload execution. You will work side by side with software development, product, and systems teams to design, automate, and execute comprehensive test suites covering the features, functionalities, and deployment scenarios of our next-generation AI chip software stack.
Principal Software Engineer TypefacePrincipal Software EngineerPalo Alto, CA$247,500–$267,000 / yearAs a Principal Engineer, you will: Solve complex architectural challenges to harness the power of LLMs and multimodal AI for scalable, enterprise-grade content generation. Strong background in cloud-native architecture (AWS, GCP, Azure), containerization (Docker, Kubernetes), and modern API design.
Principal Software Engineer CSC GenerationPrincipal Software EngineerSan Jose, CAReports to : Director of Engineering Location : Costa Rica (Remote) About the role: As our Principal Software Engineer , you will serve as the technical authority for Backcountry's ecommerce platform — setting architectural direction, leading complex engineering initiatives, and raising the bar for how we build and ship software across our outdoor retail brands. Spearhead AI technical innovation by designing AI and agentic workflows that empower engineering teams; leverage best-in-class AI toolsets to improve engineering delivery throughput, quality, and reliability.
NewPrincipal Software Engineer (Platform Team) Space Exploration TechnologiesPrincipal Software Engineer (Platform Team)Sunnyvale, CA$210,000–$295,000 / yearBASIC QUALIFICATIONS: Bachelor's degree in computer science, computer engineering, or other engineering discipline and 7+ years of professional experience building and scaling production platforms; OR 9+ years of professional experience building and scaling production platforms in lieu of a degree. This team creates secure, scalable gateways and proxy systems that allow engineers and operators across the company to write code faster, perform advanced data analysis, connect AI to their daily tools and problems, and turn ideas into deployed solutions with confidence.
Principal Software Engineer PragmatikePrincipal Software EngineerSan Francisco, California$180,000–$300,000 / yearOur client is building highly scalable technology that sits at the core of critical business operations, offering engineers the opportunity to work on complex systems, large-scale integrations, and real-world technical challenges. Pragmatike is recruiting on behalf of a rapidly scaling technology company seeking a Principal Software Engineer to provide technical leadership across critical systems and engineering initiatives.
Principal Software Engineer MicrosoftPrincipal Software EngineerMountain View, CA$165,600–$296,400 / yearMasters Degree in Computer Science or related technical field AND 12+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR Bachelors Degree in Computer Science or related technical field AND 15+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python. This is a role emphasizing true end‑to‑end responsibility: setting the architectural vision, shaping the platform for AI‑forward discovery experiences, and steering the evolution of product experiences that sit at the heart of how users engage with the intersection of knowledge, content, and personalization on surfaces on which Copilot shows up.
Senior Principal Software/Firmware Engineer - Optical PHY MarvellSenior Principal Software/Firmware Engineer - Optical PHYSanta Clara, CAIn this role, your special mission is to serve as a conduit between architectural innovations and practical implementations, which includes periodically embedding into a variety of product design teams to help turn architectural specifications into actual product features, while feeding in-the-trench intelligence back to ensure that innovation efforts remain down-to-earth. Highlights include an employee stock purchase plan with a 2-year look back, family support programs to help balance work and home life, robust mental health resources to prioritize emotional well-being, and a recognition and service awards to celebrate contributions and milestones.
Principal Software Engineer (YC Experience) PragmatikePrincipal Software Engineer (YC Experience)San Francisco, CaliforniaPragmatike is recruiting on behalf of a rapidly scaling technology company seeking a Principal Software Engineer with experience in YC-backed or Venture backed start-ups to provide technical leadership across critical systems and engineering initiatives. Our client is building highly scalable technology that sits at the core of critical business operations, offering engineers the opportunity to work on complex systems, large-scale integrations, and real-world technical challenges.
Principal Software Engineer, Transform FloqastPrincipal Software Engineer, TransformSan Jose, 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 The Walt Disney CompanyPrincipal Software EngineerSan Francisco, CaliforniaOur work involves optimizing media processing, introducing new media codecs, developing quality and performance assessment frameworks and conducting innovative media R&D towards future platform capabilities for the purposes of achieving velocity, scale, and efficiency through an optimized media platform as well as redefining storytelling through innovative media experiences. Job Posting Segment: PE - Media Engineering Job Posting Primary Business: PE - Media Platform - Innovation & Research Primary Job Posting Category: Software Engineer Employment Type: Full time Primary City, State, Region, Postal Code: San Francisco, CA, USA Alternate City, State, Region, Postal Code: USA - NC - 3005 Carrington Mill Blvd Date Posted: 2026-06-15
Sr. Principal Software Engineer - Network Security - PanOS Palo Alto NetworksSr. Principal Software Engineer - Network Security - PanOSSan Francisco, CaliforniaFor candidates who receive an offer at the posted level, the starting base salary (for non-sales roles) or base salary + commission target (for sales/com-missioned roles) is expected to be the annual range listed below. We need individuals who feel comfortable in ambiguity, excited by the prospect of a challenge, and empowered by the unknown risks facing our everyday lives that are only enabled by a secure digital environment.
Senior Principal Embedded Firmware Software Engineer - Networking Pam4 Dsp/Data Center/Odsp/Aec/Microled/Ai Connectivity MarvellSenior Principal Embedded Firmware Software Engineer - Networking Pam4 Dsp/Data Center/Odsp/Aec/Microled/Ai ConnectivitySanta Clara, CAThe Optical Digital Signal Processing (ODSP) PHY SW Team develops software for Marvell's DSP products used in pluggable optical modules-chips that form the backbone of the internet, moving data within and between data centers worldwide. Highlights include an employee stock purchase plan with a 2-year look back, family support programs to help balance work and home life, robust mental health resources to prioritize emotional well-being, and a recognition and service awards to celebrate contributions and milestones.
Principal Software Engineer, AI Tooling & Adoption FiveTranPrincipal Software Engineer, AI Tooling & AdoptionOakland, CA$225,813–$282,266 / yearFivetran promotes diversity, equity, inclusion & belonging through attracting, recruiting, developing, and retaining a diverse workforce, not only because it is the right thing to do, but because it helps us build a world-class company to better serve our customers, our people and our communities. Together, we're delivering the data infrastructure layer that helps organizations move, transform, and trust their data - from the moment data moves, through every transformation, to the context teams and AI systems rely on.
Senior Principal Software Applications Engineer MarvellSenior Principal Software Applications EngineerSanta Clara, CAHighlights include an employee stock purchase plan with a 2-year look back, family support programs to help balance work and home life, robust mental health resources to prioritize emotional well-being, and a recognition and service awards to celebrate contributions and milestones. This role is designed for a highly experienced engineer who combines deep technical expertise with strong customer engagement skills and the ability to influence both internal development teams and external partners.
Principal Software Engineer, CDN (Starlink) SpaceXPrincipal Software Engineer, CDN (Starlink)Palo Alto, CA$210,000–$295,000 / yearTo 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, Experimentation Platform - CoreAI MicrosoftPrincipal Software Engineer, Experimentation Platform - CoreAIMountain View, CA$142,800–$274,800 / yearMaster’s Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR Bachelor’s Degree in Computer Science or related technical field AND 12+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience. Lead cross-team collaboration to identify dependencies, negotiate delivery schedules, drive alignment across partner teams, and ensure proper end-to-end testing, live-site coverage, scalability and performance before going live.
Principal Software Engineer, Simulation OpenAIPrincipal Software Engineer, SimulationSan Francisco, CaliforniaFor unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. Build a platform for our LLMs to train and be evaluated in simulated environments that mimic their deployment setting as closely as possible, on every axis: agentic harness, compute substrate, timing, tools, data sources, humans in the loop, and more.