Principal, Security Engineer Coupang IncPrincipal, Security EngineerMountain View, CABorn out of an obsession to make shopping, eating, and living easier than ever, we are collectively disrupting the multi-billion-dollar commerce industry from the ground up and establishing an unparalleled reputation for being leading and reliable force in South Korean commerce. We are looking for an experienced Security Engineer to help modernize our enterprise directory services and identity infrastructure while improving reliability, scalability, and security across a global environment.
Principal Software Engineer - AI Experiences, Copilot Microsoft CorpPrincipal Software Engineer - AI Experiences, CopilotMountain View, CABachelor's degree in computer science, or related technical discipline AND 10+ years software engineering experience building web products at scale by coding in languages including, but not limited to, Typescript and React OR Masters Degree in Computer Science, or related technical discipline AND 8+ years software engineering experience building web products at scale by coding in languages including, but not limited to, Typescript and React OR equivalent experience. Bachelor's degree in computer science, or related technical discipline AND 4+ years software engineering experience building web products at scale by coding in languages including, but not limited to, Typescript and React OR equivalent experience.
Principal Software Engineer II - Interoperable Foundations Snowflake IncPrincipal Software Engineer II - Interoperable FoundationsMenlo Park, CA$304,000–$437,000 / yearWe look for low-ego individuals who thrive in dynamic and fast-moving environments and move with an experimental mindset - who rapidly test emerging capabilities to discover simpler, more powerful ways to deliver results. We lead innovations across open table formats such as Apache Iceberg, helping customers build peta-byte scale multi-cloud data lakes on Snowflake.
Principal AI Platform Engineer - AI Experiences, Copilot Engineering Microsoft CorpPrincipal AI Platform Engineer - AI Experiences, Copilot EngineeringMountain View, CA$142,800–$274,800 / yearThere is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $188,000 - $304,200 per year. Starting January 26, 2026, AI Experiences employees who live within a 50- mile commute of a designated Microsoft office in the U.S. or 25-mile commute of a non-U.S., country-specific location are expected to work from the office at least four days per week.
Senior Principal Optical Integration Engineer LightWorks Optical SystemsSenior Principal Optical Integration EngineerFremont, CACollaborate with cross-functional teams consisting of laser packaging, Silicon Photonics, IC design, substrate layout, and module design teams. Experience of managing cross-functional teams successfully, interacting with a broad range of functions, skills, cultures, and personalities.
Principal Design Engineer Coherent CorpPrincipal Design EngineerFremont, CAWe are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Coherent provides a comprehensive career development platform within an environment that challenges employees to perform at their best, while rewarding excellence and hard-work through a competitive compensation program.
Senior or Principal Structural Design Engineer - Data Center Mission Critical Enercon Services IncSenior or Principal Structural Design Engineer - Data Center Mission CriticalEmeryville, CA$107,200–$183,000 / yearAdditionally, the role may involve inspections, allow you to create client presentations, and provide collaboration with multidisciplinary teams. Engineering Leadership: Drive impactful solutions in the power industry through expert design, analysis, and cutting-edge building systems.
Principal Software Engineer - PMTS Salesforce IncPrincipal Software Engineer - PMTSSan Francisco, CA$197,300–$313,700 / yearWe work in a highly collaborative environment, and you will partner with a highly cross functional team comprised of Data Scientists, Software Engineers, Machine learning engineers, UX experts, and product managers to build AI Apps. Demonstrated track record of cultivating strong working relationships and driving collaboration across multiple technical and business teams to resolve critical issues.
Senior Principal Optoelectronics Engineer Coherent CorpSenior Principal Optoelectronics EngineerFremont, CAWe are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Collaborate with Product Line Management and R&D Management to generate development schedules that achieve key project milestones, NPI deliverables, business requirements, and customer satisfaction.
Principal Software Engineer, Foundry Agents - CoreAI Microsoft CorpPrincipal Software Engineer, Foundry Agents - CoreAIMountain View, CA$139,900–$274,800 / yearWithin CoreAI, the Foundry Agents organization is responsible for key ownership areas across the end-to-end agent lifecycle: (a) Foundry Agents platform to deploy and run agents securely at enterprise scale with seamless integration with governed tools, (b) model fine-tuning to train and improve agentic performance, and (c) Foundry observability to generate insights from agentic traces and continuously evaluate and optimize agents. Preferred Qualifications: Masters 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 OR equivalent experience.
Principal NPI Engineer Coherent CorpPrincipal NPI EngineerSunnyvale, CAProficient with data analysis and reporting tools Working Conditions Regular use of a computer and other office equipment is necessary Interaction with team members and external contacts is a regular part of the job Physical Requirements Sitting for extended periods while working on a computer or conducting meetings. We are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets.
Principal Business Intelligence Engineer Coherent CorpPrincipal Business Intelligence EngineerSanta Clara, CAWe are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Drive enterprise data integration initiatives involving Oracle E-Business Suite (EBS), ERP systems, manufacturing systems, external APIs, and cloud-based data platforms.
AI Engineer (Senior, Staff, Senior Staff, Principal) Health GPT IncAI Engineer (Senior, Staff, Senior Staff, Principal)Menlo Park, CAOwn your first major outcome: By day 90, you will have shipped an end-to-end AI feature or system improvement (a new RAG pipeline, multi-agent workflow, or voice agent capability), validated it works reliably in production, and established the development patterns that the team will scale going forward. We recently raised a $126M Series C at a $3.5B valuation, led by Avenir Growth, bringing total funding to $404M with participation from CapitalG, General Catalyst, a16z, Kleiner Perkins, Premji Invest, UHS, Cincinnati Children's, WellSpan Health, John Doerr, Rick Klausner, and others.
Principal/Senior Software Engineer, Experimentation Platform - CoreAI Microsoft CorpPrincipal/Senior Software Engineer, Experimentation Platform - CoreAIMountain View, CA$119,800–$234,700 / yearPreferred: Master's Degree in Computer Science or related technical field AND 6+ 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 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience. Qualifications Required: Bachelors Degree in Computer Science or related technical field AND 4+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience.
Senior Principal Optical Integration Engineer Coherent CorpSenior Principal Optical Integration EngineerFremont, CAWe are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Collaborate with cross-functional teams consisting of laser packaging, Silicon Photonics, IC design, substrate layout, and module design teams.
Principal Security Engineer | Cyber Defense Engineering ServiceNow IncPrincipal Security Engineer | Cyber Defense EngineeringSanta Clara, CA$221,200–$387,100 / yearThis is a hands-on engineering and architecture role within Cyber Defense Engineering (CDE), applied to some of the hardest, least-defined problems in cyber defense, protecting a platform trusted by thousands of the world''s largest enterprises. For positions requiring access to controlled technology subject to export control regulations, including the U.S. Export Administration Regulations (EAR), ServiceNow may be required to obtain export control approval from government authorities for certain individuals.
Senior Principal Optoelectronics Engineer LightWorks Optical SystemsSenior Principal Optoelectronics EngineerFremont, CACollaborate with Product Line Management and R&D Management to generate development schedules that achieve key project milestones, NPI deliverables, business requirements, and customer satisfaction. Work closely with III-V gain material teams in characterizing laser gain material parameters, optimizing device performance, and preparing samples for laser manufacturing.
Principal Design Engineer LightWorks Optical SystemsPrincipal Design EngineerFremont, CACollaborate with test and reliability engineers to develop characterization plans, validate device performance, and ensure long-term product reliability. Lead the design, simulation, development, and optimization of high-speed, high-sensitivity InGaAs/InP photodiodes for advanced optoelectronic applications.
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.
Principal Software Engineer - Java/Aws Early Warning Services, LLCPrincipal Software Engineer - Java/AwsSan Francisco, CA$173,000–$259,000 / yearEarly Warning Services takes into consideration a variety of factors when determining a competitive salary offer, including, but not limited to, the job scope, market rates and geographic location of a position, candidate's education, experience, training, and specialized skills or certification(s) in relation to the job requirements and compared with internal equity (peers). Design / Engineer product / application service solutions in alignment with technology strategy roadmap (example, cloud, containerization, CI/CD and automated testing) keeping futuristic business growth, ease of maintenance, operational readiness and self-service enabled.