Principal engineer jobs in San Leandro, CA - 15,109 jobs

A technology company in San Francisco is seeking an experienced software developer to join their Device Software team, focusing on the biometric imaging system. The ideal candidate will have over 5 years of experience with Rust and Linux, and will play a crucial role in optimizing software for a global fleet of devices used by millions. This position offers a competitive salary range of $220,000 - $270,000 plus comprehensive benefits. #J-18808-Ljbffr

We prioritize the health and wellbeing of our employees through our comprehensive benefit package, including generous paid time off to rest and recharge, holistic mental health support, and benefits covering employees up to 100%. Growth At CircleCI, employees have ample opportunity to learn new skills, including project-based learning and presentations from our colleagues. Your continued professional development is important to us because it's important to you. Flexibility What does it mean to work at CircleCI? For us, flexibility is key. As aSenior Field Engineer at CircleCI you will be the customer's trusted technical advisor throughout the sales and retention lifecycle. You'll provide hands‑on advice for cloud‑based and single‑tenant deployment and product guidance with CircleCI's largest prospects and customers. You will serve as the technical expert and owner of deal validation strategy, collaborating with account executives and success managers to identify customer business goals, needs, and pains and showing how CircleCI can address them. What You'll Do Lead the technical implementation and day‑to‑day management of CircleCI Demonstrations and proof‑of‑concepts. Demonstrate the technical feasibility, integrated into our customer's technology stack, ensuring early customer success and a long‑term business relationship. Serve as a technical advisor and subject matter expert for customers, offering guidance on product implementation, adoption, and best practices. Conduct in‑depth analysis of customer use cases, identify opportunities for product optimization, and provide feedback to internal teams for improvements. Support strategic planning conversations with customer executives; connecting software delivery challenges with corporate objectives, articulating their full business impact. Lead technical discussions with enterprise clients, addressing complex issues, customizations, and integrations to meet customer‑specific requirements. Develop and deliver technical training sessions, workshops, and documentation to empower customers to maximize the value of CircleCI products. Stay up‑to‑date on industry trends, product updates, and emerging technologies to continuously enhance your technical knowledge and customer support capabilities. What We're Looking For 5‑10 years experience as an engineer in the application development, devops, or CI/CD space. Extensive experience with solutions selling in a technical customer‑facing role, such as Sales Engineer, Solutions Engineer, Customer Success Engineer, or similar position, preferably in a SaaS or software development environment. Strong proficiency in CI/CD concepts, DevOps practices, software configuration, and scripting languages like Python, Shell, etc. Knowledge of Docker or Linux containers in general. Outstanding presentation skills. You feel comfortable leading presentations and demos of our platform to groups, both technical and non‑technical, in‑person and virtually. Proven track record of engaging with enterprise clients, understanding their technical requirements, and delivering solutions that drive customer success. Ability to work collaboratively with cross‑functional teams, Sales, Product, and Engineering, to advocate for customer needs and provide valuable insights for product enhancement. Ideal Candidates might also have: Experience developing mobile applications across iOS and Android devices. Strong ops/infrastructure knowledge, especially networking and security. About CircleCI CircleCI is the world's largest shared continuous integration/continuous delivery (CI/CD) platform, and the hub where code moves from idea to delivery. As one of the most‑used DevOps tools-processing more than 1 million builds a day-CircleCI has unique access to data on how engineering teams work, and how their code runs. Companies like Spotify, Coinbase, and BuzzFeed use us to improve engineering team productivity, release better products, and get to market faster. Founded in 2011 and headquartered in downtown San Francisco with a global remote workforce, CircleCI is venture‑backed by Base10, Greenspring Associates, Eleven Prime, IVP, Sapphire Ventures, Top Tier Capital Partners, Baseline Ventures, Threshold Ventures, Scale Venture Partners, Owl Rock Capital, Next Equity Partners, Heavybit and Harrison Metal Capital. United States Base Pay Range $153,000 - $191,000 USD We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation. CircleCI is an Equal Opportunity and affirmative action employer. We do not discriminate based upon race, religion, color, national origin, sexual orientation, gender, gender identity, gender expression, transgender status, sexual stereotypes, age, status as a protected veteran, or status as an individual with a disability. We also consider qualified applicants with criminal histories, consistent with applicable federal, state, and local law. #J-18808-Ljbffr

About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we're designing and building commercially viable fusion power plants. And working with policymakers and suppliers to build the energy industry of the future. We're in the best position to make it happen. Since 2018, we've raised nearly $3 billion in capital, making us the largest and leading private fusion company in the world. Now we're looking for more thinkers, doers, builders, and makers to join us. People who'll bring new perspectives, solve tough problems, and thrive as part of a team. If that's you and this role fits, we want to hear from you. Principal Mechanical Engineer We're looking for a Principal Mechanical Engineer to join our R&D and equipment design team to help build the next generation of thin‑film deposition technology. The Principal Mechanical Engineer will be responsible for the design and implementation of advanced R&D equipment and complex machinery. This role requires strong technical expertise, procedural discipline, and the ability to collaborate across engineering and technology functions to ensure safe, reliable, and high‑performance equipment. If you enjoy working on complex design problems, mentoring others, and solving problems in a collaborative, fast‑paced environment, this is your opportunity to make an impact. What you'll do: Lead the design and implementation of advanced R&D equipment for thin‑film processing, including ownership of key mechanical modules and sub‑systems Define system level requirements and drive innovative design concepts to meet these requirements Lead design reviews for overall mechanical system and key mechanical subsystems Generate and maintain interfaces with other engineering subsystems Report on and be accountable for project progress to stakeholders Work effectively within a multi‑disciplinary team of top scientists and engineers Mentor engineering staff for effectiveness and delivery of on‑time & in‑spec outcomes Get things done: drive projects, consistently deliver, act with speed What we're looking for: Master's degree in Mechanical Engineering or related field (or equivalent industrial experience) 15+ years of experience with at least 7 years of experience working as a principal mechanical design engineer or engineering team lead in a relevant context: design and implementation of R&D systems and manufacturing equipment Ability to conceive of novel solutions for complex engineering systems in challenging environments Expertise with 3D modeling; preferred experience with SolidWorks and NX Experience with COMSOL, ANSYS or other FEA tools Ability to select and qualify vendors for components or subsystems Demonstrated ability to lead in either direct or matrix structures Strong verbal and written communication skills and a dedication to high‑quality documentation Bonus points for: Ph.D. in Mechanical Engineering or related field (or equivalent industrial experience) Prior success building first‑of‑kind or experimental tools for material science or semiconductor R&D Familiarity in applying Semi‑S8, ASME, ACI, ASTM, and other mechanical standards to design solutions Experience with the operation of equipment in a manufacturing environment Must‑have Requirements: Ability to occasionally lift up to 50 lbs Perform activities such as stooping, climbing, standing, or sitting for extended periods of time Dedication to safety to mitigate industrial hazards that may include heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, and cryogenics Willingness to travel or work required nights/weekends/on‑call occasionally $150,000 - $225,000 a year Benefits Competitive compensation with equity 12.5 Company‑wide Holidays Flexible vacation days 10 sick days Generous parental leave policy Health, dental, and vision insurance 401(k) with employer matching Professional growth opportunities Team‑building activities #LI‑Onsite At CFS, we excel in fast‑paced environments, driven by our values of integrity, execution, impact, and self‑critique. As we grow, we're eager to bring on mission‑driven folks who offer diverse perspectives and fresh ways to tackle challenges. We value diversity deeply and are proud to be an equal opportunity employer by choice. We consider all qualified applicants equally, regardless of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law. This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively, “Export Control Laws #J-18808-Ljbffr

An innovative robotics company in San Francisco seeks an experienced engineer to lead the design of embedded systems and electronics for robotic applications. You will integrate sensors, develop firmware, and collaborate across teams to ensure system reliability. Ideal candidates will possess a strong track record in embedded systems design, expertise in firmware development, and proficiency with ECAD tools. The role offers a competitive salary range of $150,000 - $300,000 based on skills and experience. #J-18808-Ljbffr

A leading space technology company in San Francisco is seeking an Embedded Test Engineer responsible for testing and validating avionics hardware and software. This role involves working with engineering teams, creating test procedures, and ensuring flight readiness for spacecraft missions. The ideal candidate has a Bachelor's Degree in engineering and over 5 years of experience in software/firmware testing in aerospace. The company offers a generous compensation package along with comprehensive benefits including health insurance and flexible time off. #J-18808-Ljbffr

A leading technology company is seeking a Software Development Engineer in Mountain View, California. This role focuses on developing embedded C++ applications for ARM processors, emphasizing real-time application design and debugging complex issues. Candidates should have over 5 years of experience and a passion for creating robust software solutions. Competitive compensation and exceptional benefits are offered. #J-18808-Ljbffr

A joint venture in the automotive industry is seeking a Senior Embedded Software Engineer to support the development of the Infotainment Platform for next-generation electric vehicles. The role focuses on safety-critical embedded software development utilizing RTOS platforms, and requires extensive experience in low-level software as well as strong proficiency in C/C++. The position offers competitive compensation in the range of $146,900 to $194,610 based on experience, with robust employee benefits. #J-18808-Ljbffr

A technology firm based in Sunnyvale, California, is seeking a Senior Embedded Software, Firmware & Driver Engineer to design and maintain low-level software across various processors and custom silicon technologies. The ideal candidate will have more than 7 years of experience in embedded software development and strong skills in firmware, drivers, and system integration. This role emphasizes collaboration with hardware teams and a focus on performance, reliability, and maintainability. Competitive salary and benefits included. #J-18808-Ljbffr

A global technology company is looking for a seasoned software engineer to enhance AI capabilities within their observability platform. Candidates should have a strong background in AI/ML systems, cloud computing, and robust technical leadership. This role is pivotal in driving innovation in data analysis and delivering scalable solutions. The ideal candidate will thrive in an agile environment and provide mentorship to junior engineers. Enjoy competitive salaries and benefits while contributing to impactful technology solutions. #J-18808-Ljbffr

A cutting-edge robotics company in San Francisco seeks a leader to drive technical strategy and deliver innovative robotic solutions. You will work directly with scientists, manage projects from conception to execution, and contribute to teams focusing on advanced robotics. Ideal candidates possess strong programming and debugging skills, a mechanical engineering background, and a passion for entrepreneurship. Competitive benefits, including 401k and unlimited PTO, are offered. #J-18808-Ljbffr

A leading AV technology company in San Francisco is seeking a skilled Robotics Engineer to develop and deploy features for autonomous vehicles. This role involves system-level debugging, technical leadership during deployments, and collaboration across various teams. The ideal candidate has over 2 years of software development experience, strong programming skills, and a good understanding of robotics concepts. This position requires up to 10% travel for field deployments and flexibility during critical project timelines. #J-18808-Ljbffr

Mill is all about answering a simple question: how can we prevent waste? Less waste can save time, money, energy, maybe even our planet. And there's no better place to start than food. Food waste is one of the most solvable climate problems facing us today. Plus, our trash really stinks. It's gross, heavy, and our least favorite chore. At Mill we are striving to build a better environment for all, as we take on climate and kitchen change. As a member of Mill's Product Design Engineering team you will be part of a cross functional team to design, validate and ship Mill's hardware products. You will work closely with other members of the PD team as well as cross functional groups including Industrial Design, Electrical Engineering, Reliability, Product Management and Operations. Objectives of this role: Design mechanical systems to balance complex tradeoffs between cross functional teams including Industrial Design, Electrical Engineering, Reliability, Product Management and Operations Generate detailed CAD models, specifications and documentation Prototype, Test and Analyze component and system designs Validate and system performance and iterate designs to achieve targets Create predictive models and correlate with real world performance Perform root cause analysis of performance failures and drive corrective actions Work directly with the supply chain to ensure parts are properly manufactured and assembled. Qualifications BS degree in mechanical engineering or equivalent 2 + years experience working in mechanical product design. Consumer Electronics or Home Appliance industries are preferred Expertise in CAD modeling, experience with NX is preferred. Detailed knowledge of plastic and metal part manufacturing processes Solid understanding of product design concepts including Design for Manufacturing (DFM), Design for Assembly (DFA), Tolerance Analysis Demonstrated ability to apply engineering fundamentals to find simple solutions to complex problems A strong desire to work hands-on Strong communication skills The estimated base salary range for this position is $150k to $175k, which does not include the value of benefits or a potential equity grant. A wide range of factors are considered in making compensation decisions, including but not limited to skill sets, market conditions, experience and training, licensure and certifications, and business and organizational needs. #J-18808-Ljbffr

A tech startup focused on CAD intelligence is seeking a talented individual to own the creation and refinement of computational geometry features using Python and C++. You'll collaborate closely with engineers and gain insights from customers to shape the product roadmap. The role offers a generous equity package, opportunities for growth, and relocation assistance to San Francisco. Excellent communication skills and experience with reinforcement learning algorithms are required. #J-18808-Ljbffr

An innovative neurotechnology company in San Francisco seeks a Senior Electronics/Embedded Engineer. This role involves designing and building implantable neurotechnology, focusing on mixed-signal electronics and embedded firmware development. Candidates should have over 5 years of experience, expertise in C/C++ and RTOS, and strong skills in low-noise circuit design. The position offers a dynamic environment with opportunities for professional development and contributions to life-changing technologies. #J-18808-Ljbffr

A technology company in Sunnyvale is seeking a Staff Hardware Systems Engineer to lead the development of system firmware and kernel-level software for high-performance server platforms. The ideal candidate has over 8 years of experience in hardware systems development and strong expertise in BIOS and firmware engineering. You will directly influence the company's future by enhancing hardware compatibility and performance. Competitive compensation and benefits are provided, including stock options. #J-18808-Ljbffr

A technology company in San Francisco is looking for an experienced Electrical Engineer to contribute to the design and development of wearable electronics. The ideal candidate should have over 10 years of experience in complex electrical engineering projects, possess strong skills in both analog and digital domains, and enjoy working collaboratively across teams. This full-time position offers competitive benefits, including health, dental, and 401k matching, making it a great opportunity for passionate professionals. #J-18808-Ljbffr

Pronto is looking for a Robotics Engineer who thrives at system-level debugging and end-to-end feature delivery-taking autonomy capabilities from prototype to reliable performance on real vehicles. You'll develop, test, and deploy features for our autonomous trucks, and you'll serve as a technical lead during deployments, owning bring-up, triage, and cross-team coordination in mission-critical environments. What You'll Be Doing Develop, integrate, and validate autonomy features (software + tests) for real-world autonomous vehicle operation. Own system-level debugging: diagnose issues across sensors, compute, networking, controls, and software stacks using logs, metrics, and on-vehicle tools. Lead technical execution for deployments: drive bring-up plans, communicate technical requirements, identify risks, and coordinate fixes with engineering and operations. Support field deployments in mission-critical environments, including periodic travel to customer sites and hands-on on-vehicle debugging. Bring up and integrate new truck platforms: work with hardware and integration teams to add sensors and vehicle signals, calibrate systems, and tune performance. Collaborate across disciplines (hardware, operations, safety, product) to deliver robust, safe, and maintainable autonomy behavior. Travel note: This role requires periodic travel to customer sites (up to 10%). Schedule note: Some schedule flexibility may be required during deployments. Required Qualifications 2+ years of professional (non-internship) software development experience. Strong programming skills in at least one modern language (Python, C++, Java, or C#); experience with object-oriented design and building maintainable systems. Proven robotics engineering experience with evidence of system-level ownership (e.g., integration, debugging, performance tuning, field support, or deployments). Ability to design and debug software systems with strong diagnostics (structured logging/metrics, fault isolation, testability) that scale beyond a single vehicle. Working knowledge of core robotics concepts and math (e.g., state estimation/Kalman filtering, localization, planning, controls). Comfort operating in ambiguity-able to define scope, interfaces, milestones, and success criteria to drive a problem to completion. Strong communication and collaboration skills, including the ability to explain technical trade-offs to non-technical partners. Demonstrated ability to lead technical projects through planning, execution, and deployment. Preferred Qualifications Experience deploying autonomy/robotics systems in the field (on-call or deployment rotations, safety-critical troubleshooting, or customer-site support). Experience with any of: sensor fusion, safety systems, camera pipelines, ML for perception, vehicle interfaces (CAN), calibration workflows. Familiarity with robotics tooling and infrastructure (Linux, Git, CI/CD, simulation/test harnesses). #J-18808-Ljbffr

Job Title: Senior Electronics/Embedded Engineer Coherence Neuro is a fast‑growing, venture‑backed company pioneering implantable technologies that interface with the human body to address critical unmet medical needs. We're looking for driven individuals who are passionate about pushing the boundaries of engineering and science to solve some of the most complex biological challenges. In this early‑stage environment, we seek versatile team members with a hands‑on approach and a willingness to learn quickly and adapt. We value diversity and encourage applicants from all backgrounds to join us in our mission. Learn about our team here ! We are building our Product Development Team and looking for a Senior Electronics/Embedded Engineer to design and build the next generation of implantable neurotechnology, focusing on both the high‑performance electronics and the firmware that make neural interfaces and stimulation systems work. You will tackle complex hardware‑software challenges, innovate at the edge of neuroscience and medical devices, and help bring transformative technologies from lab to clinic. This is a highly hands‑on role where you will prototype, test, and refine hardware and firmware in a fast‑paced R&D environment Key Responsibilities Own critical elements of the design, development, and integration of mixed‑signal electronics and embedded firmware for implantable neurotechnology systems. Architect and implement low‑level firmware (C/C++/RTOS) including drivers, real‑time data acquisition, stimulation control, and communication stacks. Design and validate analog circuits, optical circuits, low‑noise amplifiers, power management modules, and digital interfaces. Own board bring‑up and hardware/firmware integration testing-debug complex interactions using oscilloscopes, logic analyzers, JTAG/SWD, and custom test rigs. Develop automated firmware/hardware test frameworks for benchtop, in‑vitro, and preclinical environments. Optimize electronics and firmware for low power, low noise, and high‑bandwidth data transfer with long‑term reliability. Collaborate closely with engineering teams on interface definitions and architectural decisions. Document firmware and electronics architecture, design decisions, interface specifications, and verification results under design control and QMS. Mentor junior engineers and help build a high‑performance embedded and electronics team. Required Qualifications and Skills Bachelor's or Master's in Electrical Engineering, Computer Engineering, Embedded Systems, or equivalent. 5+ years of experience developing mixed‑signal hardware and embedded firmware for complex devices. Expertise in C/C++, RTOS development (FreeRTOS/Zephyr/QNX), and hardware‑oriented programming. Bonus if familiarity extends to FPGA based embedded systems. Strong experience with low‑noise circuit design, ADCs/DACs, stimulation circuits, power management, and sensor integration. Strong MCU background, including peripheral configuration, DMA, interrupts, and real‑time constraints. Demonstrated ability to bring up new PCBs and debug cross‑disciplinary issues (electrical, firmware, timing, signal integrity). Experience with ECAD tools (Altium, Cadence) and a strong understanding of PCB design constraints. Familiarity with communication interfaces (SPI, I2C, UART, BLE, custom optical/RF). Familiarity with ISO 13485, IEC 60601, or other relevant standards. Strong documentation, safety‑first mindset, and ability to work within a regulated medical development environment. Strong communication skills and ability to work collaboratively in a interdisciplinary environment. Adaptability to fast‑paced research with dynamic priorities. Strong analytical and problem‑solving skills. Bonus Skills Experience with programming FPGA embedded systems (Verilog). Knowledge of optical communication, LED/photodiode drivers. Experience with inductive power transfer systems or high‑efficiency wireless power links. Experience working with or designing toward ASIC‑based implementations. Reporting Structure This role is an integral part of the product team and reports directly to the VP of Engineering. Benefits US standard compensation: competitive salary and share options. Daily meals provided. Healthcare and 401k. Professional development support and training opportunities. Flexible working hours and travel opportunities (sites in Australia, UK, and US). A chance to work on impactful, life‑changing technologies in a dynamic, innovative environment. If you are passionate about innovation in healthcare, we would love to hear from you! Please submit your application here. #J-18808-Ljbffr

A technology company in Sunnyvale is seeking a Staff Hardware Systems Engineer to lead the development of system firmware and kernel-level software for high-performance server platforms. The ideal candidate has over 8 years of experience in hardware systems development and strong expertise in BIOS and firmware engineering. You will directly influence the company's future by enhancing hardware compatibility and performance. Competitive compensation and benefits are provided, including stock options. #J-18808-Ljbffr