Sr Principal/ Principal Software Engineer, Scientific System Of Record LILASr Principal/ Principal Software Engineer, Scientific System Of RecordSan Francisco, CA$204,000–$348,000 / yearCross-Functional Influence: Partner deeply with scientists, ML researchers, platform engineers, data engineers, automation teams, and product leaders to translate scientific and operational needs into coherent platform architecture. Lab Execution and Scientific Workflows: Design systems that model scientific intent, experiment planning, protocol execution, sample and asset state, operational events, and results capture across complex lab workflows.
Sr Principal/Principal Software Engineer, App Lila Sciences IncSr Principal/Principal Software Engineer, AppSan Francisco, CA$204,000–$348,000 / yearFull-time U.S. employees receive a comprehensive benefits program including medical, dental, and vision coverage; employer-paid life and disability insurance; flexible time off with generous company wide holidays; paid parental leave; an educational assistance program; commuter benefits, including bike share memberships for office based employees; and a company subsidized lunch program. Communication & Collaboration: Acute listening skills, and a proven track record of working cross-functionally with scientists, data engineers, and product teams; able to explain complex ideas to diverse audiences.
Sr. Project Manager/Principal Engineer (Civil) GFT Infrastructure IncSr. Project Manager/Principal Engineer (Civil)Berkeley, CA$156,000–$210,000 / yearProject Management experience Excellent verbal and written communication skills Software expertise in: Civil 3D, GeoPak/OpenRoads, Bluebeam Strong work ethic and the ability to handle multiple projects in a fast-paced setting Seller/Doer - Develops and presents proposals to clients as well as executes the projects once received Located locally Experience/interest in mentoring, supervisor role and/or team leader role Experience with federal projects is a plus. Whether working on planning, design, and construction administration of public and private site development projects, rail projects or road/trail projects, our team excels in resilient, sustainable design and construction, delivering innovative solutions that address the complexities of modern, multimodal systems and ensure safe, efficient, and reliable space for all.
Principal Engineer, Core - Pinner Journeys Pinterest IncPrincipal Engineer, Core - Pinner JourneysSan Francisco, CARemote$242,634–$449,541 / yearYou will operate as a cross-cutting technical leader: defining long-term architecture, raising the bar on ML and systems excellence, and partnering closely with product and executive leadership to drive step‑function improvements in engagement, quality, and creator value. Provide hands-on technical leadership on a small number of high-leverage projects: design critical components, review designs/PRs, de-risk complex launches, and mentor senior engineers and staff+ TLs.
Principal Engineer Software, Tools & Platforms (Cortex) Palo Alto Networks IncPrincipal Engineer Software, Tools & Platforms (Cortex)CA$147,000–$237,500 / yearFor 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. If you have a passion for creating tools that enhance productivity, streamline workflows, and support the operational needs of a growing infrastructure, you're the candidate we're looking for.
Principal Engineer I/II, MSAT / Viral Vector Downstream Third Rock Ventures LLCPrincipal Engineer I/II, MSAT / Viral Vector DownstreamBerkeley, CA$170,000–$215,000 / yearDefine and lead the external downstream process strategy for Azalea's viral vector programs, with an immediate focus on EDV and AAV manufacturing for Program 1. In collaboration with the PD team, assist with downstream process development, optimization, scale-up, and manufacturing readiness activities across clarification, filtration, chromatography, ultrafiltration/diafiltration, formulation interfaces, sterile filtration, hold-time strategy, and other relevant unit operations. Fraudulent emails claiming to be sent by Azalea or Azalea employees may come from similar sounding emails with endings like "@azaleajobs.com" or "@azalea.com" or even emails ending in common public domain addresses with endings like "@gmail.com,"
Principal Engineer, Identity Data Security and Trust Snowflake IncPrincipal Engineer, Identity Data Security and TrustMenlo Park, CA$264,000–$379,500 / yearAS A PRINCIPAL SOFTWARE ENGINEER - IDENTITY, DATA SECURITY AND TRUST AT SNOWFLAKE YOU WILL: Architectural Leadership: Lead the design and implementation of the Data Movement Policy (DMP) framework, ensuring it can handle complex multi-cloud and hybrid environments. You will bridge the gap between high-level security policy and low-level system enforcement, ensuring that our perimeter controls are robust, scalable, and deeply integrated with context-aware access policy frameworks.
Frontend AI Principal Engineer - Cortex Code Snowflake IncFrontend AI Principal Engineer - Cortex CodeMenlo Park, CA$200,000–$287,500 / yearThis role offers the unique opportunity to have broad creative license, empowering you to lead and create groundbreaking systems and experiences that marry aesthetics with functionality, making data more accessible and actionable for our customers. We 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.
Principal AI Network Hardware Systems Engineer Microsoft CorpPrincipal AI Network Hardware Systems EngineerMountain View, CA$142,800–$274,800 / yearThe Platform Systems Engineering (PSE) team is seeking a Principal AI Network Hardware Systems Engineer to lead the architecture, bring-up, validation, optimization, and deployment of networking infrastructure for Microsofts MAIA AI platform. There 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.
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
Principal Engineer, Online Systems Pinterest IncPrincipal Engineer, Online SystemsPalo Alto, CA$285,452–$499,541 / yearWhat we're looking for: 12+ years of software engineering experience with deep expertise in distributed systems, especially online serving, storage, and caching systems: hands-on experience building and operating highly available, reliable, production-grade systems at large scale; strong technical judgment in reliability, scalability, performance, and infrastructure efficiency; proficiency in at least one of C++, Java, or Python. Proven track record driving large-scale technical impact: experience leading reliability and scalability improvements, cost efficiency initiatives, and modernization efforts across critical production systems; able to define technical strategy, influence architecture decisions, and drive execution through cross-functional collaboration, strong communication, and operational excellence.
NewPrincipal Engineer - Perf and Benchmarking CoreWeavePrincipal Engineer - Perf and BenchmarkingSunnyvale, CA / Bellevue$206,000–$333,000 / yearYou will also be an integral part of achieving industry-leading end-to-end performance benchmarking publications: If MLPerf (Training & Inference), Working closely with NVIDIA (Megatron-LM, TensorRT-LLM & DGX cloud) and the open-source community (llm-d, vLLM and all popular ML frameworks) speak to you, come help us demonstrate CoreWeave’s performance reliability leadership in the field. To conform to U.S. Government export regulations applicable to that information, applicant must either be (A) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful permanent resident (green card holder), (iii) refugee under 8 U.S.C. § 1157, or (iv) asylee under 8 U.S.C. § 1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency.
Principal Engineer, Shopping & Delivery Infra Pinterest IncPrincipal Engineer, Shopping & Delivery InfraSan Francisco, CARemote$285,452–$449,541 / yearWhat you'll do: Define and drive the long-term technical vision for indexing and retrieval infrastructure across Core, Ads, and Shopping, aligning architecture investments to measurable improvements in freshness, quality, coverage, reliability, and cost efficiency. Partner closely with engineering, product, ML, and infrastructure leaders to align priorities, resolve tradeoffs, and deliver shared platform capabilities that improve retrieval performance across multiple discovery surfaces.
Principal Engineer - Cloudforce One Cloudflare IncPrincipal Engineer - Cloudforce OneSan Francisco, CAYou will operate across the full breadth of Cloudflare Products, diving into whatever problem is most critical - whether that''s redesigning a detection pipeline in Kubernetes, deploying a new mitigation capability at the edge via Workers, building agentic AI workflows that automate analyst tradecraft, or architecting a data system that processes trillions of signals per day. Design and build critical data pipelines and services to collect, enrich, analyze, and expose threat intelligence and abuse signals at massive scale, helping identify Tactics, Techniques, and Procedures (TTPs) and Indicators of Compromise (IOCs).
Principal Engineer, AI Platform Pinterest IncPrincipal Engineer, AI PlatformSan Francisco, CARemote$242,634–$499,541 / yearOur team builds the end-to-end engines for petabyte-scale data orchestration, model training and fine-tuning, and high-performance inference, ensuring our models scale seamlessly to hundreds of millions of inferences per second in service of over 600 million monthly active users. What we're looking for: Deep expertise in AI/ML infrastructure and distributed systems: Hands-on experience designing, building, and operating highly available, production-grade systems at large scale; strong technical judgment; and proficiency in at least one of C++, Java, or Rust.
Principal Engineer - AI Engineering Wells Fargo & CoPrincipal Engineer - AI EngineeringConcord, CA$159,000–$305,000 / yearThey are accountable for execution of all applicable risk programs (Credit, Market, Financial Crimes, Operational, Regulatory Compliance), which includes effectively following and adhering to applicable Wells Fargo policies and procedures, appropriately fulfilling risk and compliance obligations, timely and effective escalation and remediation of issues, and making sound risk decisions. The Principal Engineer will provide strategic and hands-on technical leadership for the architecture, development, modernization, and operationalization of enterprise-scale predictive and generative AI solutions across hybrid and multi-cloud environments.
Principal Software Engineer (Security & Policy Platform) (Remote) Cisco Systems IncPrincipal Software Engineer (Security & Policy Platform) (Remote)San Jose, CARemote$250,600–$362,600 / yearMinimum Qualifications: Bachelor's degree or higher in Computer Science, Electrical Engineering, or a related technical field with 12+ years of experience designing and developing large-scale software, platform, or distributed systems. For quota-based incentive pay, Cisco typically pays as follows: 75% of incentive target for each 1% of revenue attainment up to 50% of quota; 1.5% of incentive target for each 1% of attainment between 50% and 75%; 1% of incentive target for each 1% of attainment between 75% and 100%; and.
Senior Principal Electrical Engineer Coherent CorpSenior Principal Electrical EngineerSanta Clara, CAKnowledge of fiber optics test and measurement equipment including BERTs, sampling/real-time oscilloscopes, VNAs, spectrum analyzers, optical spectrum analyzers, optical power meters, wavelength meters, tunable lasers, attenuators, thermal control systems, and automated handlers. Expertise selecting PCB materials and stackups for high-frequency applications, including Rogers, Panasonic and equivalent low-loss laminate families, hybrid stackups, prepreg/core choices, resin systems, glass weave effects, fabrication tolerances, and cost/performance tradeoffs.
Principal Engineer IroncladPrincipal EngineerSan Francisco, CA$285,000–$315,000 / yearWe're consistently recognized as a leader in the industry: a Leader in the Forrester Wave and Gartner Magic Quadrant for Contract Lifecycle Management, a Fortune Great Place to Work, and one of Fast Company's Most Innovative Workplaces. Deep experience designing and evolving large-scale, distributed SaaS or platform architectures (e.g., multi-tenant systems, event-driven systems, or data platforms).
Principal Machine Learning Engineer, Content Safety Roblox CorpPrincipal Machine Learning Engineer, Content SafetySan Mateo, CA$295,250–$345,040 / yearStrategic Stakeholder Partnership: Collaborate with executive-level Product, Data Science, Policy, and Operations leaders to define and prioritize the strategic machine learning roadmap, influencing product strategy and demonstrating the impact of ML on user trust and safety outcomes. You will: Define and Own the Technical Vision: Define and lead the multi-year technical vision, architectural strategy, and execution for machine learning solutions in Content Safety, ensuring these systems proactively and effectively detect and mitigate violative content at massive scale.