Principal engineer jobs in Fremont, CA - 16,258 jobs

A leading technology company based in San Francisco seeks a Sr. Software Engineer to develop and enhance diagnostic tools for Apple devices. The ideal candidate will have 12+ years of software experience, strong skills in object-oriented design, and the ability to collaborate effectively across teams. This role offers a competitive salary range of $212,000 to $318,400 along with extensive benefits. #J-18808-Ljbffr

Meet the Team The Splunk Observability Application Platform Team is a dynamic group of engineers responsible for the core platform powering Splunk Observability Cloud. Our platform is the foundation for advanced observability capabilities that enable our customers to thrive. We operate in small, high-performing teams, driving significant impact and working with microservices at scale. Our mission is to optimize platform systems for reliability, transparency, efficiency, and cost-effectiveness, so engineering teams across Splunk Observability can focus on innovation and deliver unique value to customers. As we enter the agentic AI era, we face exciting opportunities and challenges to expand our platform for both agents and human users. Join us as we shape the next chapter of our platform, increase our scale, and delight our customers. You'll work with distributed systems, leverage open source where it fits, and build high-performance custom solutions when needed. Your Impact Lead the design and implementation of shared libraries, components, and microservices to build a modern, highly reliable, secure, and scalable application platform. Influence and contribute to critical decisions on technical architecture and platform design. Collaborate across multiple teams within Cisco to drive platform innovation and ensure seamless integration. Mentor and develop engineering talent, fostering a culture of growth and collaboration. Minimum Qualifications At least 6 months of hands‑on experience effectively leveraging AI coding assistance, with a strong “AI‑first” mindset. 3+ years of proven experience delivering large‑scale, distributed SaaS solutions. Bachelor's degree in Computer Science, Engineering, or a related field with 8+ years of software engineering experience, or a Master's degree with 6+ years of experience. Deep understanding of microservices and distributed application architecture, including when to simplify and seek alternatives. Exceptional problem‑solving and communication skills, with the ability to explain complex technical concepts to both technical and non‑technical stakeholders. Proficiency in Java and the ability to quickly learn new programming languages. Preferred Qualifications Experience and knowledge in the observability and monitoring domain. Strong troubleshooting and performance profiling capabilities. A devops automation mindset with a passion for engineering efficiency and process optimization. Why Cisco? At Cisco, we're revolutionizing how data and infrastructure connect and protect organizations in the AI era - and beyond. We've been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint. Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you'll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere. We are Cisco, and our power starts with you. Message to applicants applying to work in the U.S. and/or Canada The starting salary range posted for this position is $183,800.00 to $263,600.00 and reflects the projected salary range for new hires in this position in U.S. and/or Canada locations, not including incentive compensation*, equity, or benefits. Individual pay is determined by the candidate's hiring location, market conditions, job‑related skillset, experience, qualifications, education, certifications, and/or training. The full salary range for certain locations is listed below. For locations not listed below, the recruiter can share more details about compensation for the role in your location during the hiring process. U.S. employees are offered benefits, subject to Cisco's plan eligibility rules, which include medical, dental and vision insurance, a 401(k) plan with a Cisco matching contribution, paid parental leave, short and long‑term disability coverage, and basic life insurance. Please see the Cisco careers site to discover more benefits and perks. Employees may be eligible to receive grants of Cisco restricted stock units, which vest following continued employment with Cisco for defined periods of time. U.S. employees are eligible for paid time away as described below, subject to Cisco's policies: 10 paid holidays per full calendar year, plus 1 floating holiday for non‑exempt employees 1 paid day off for employee's birthday, paid year‑end holiday shutdown, and 4 paid days off for personal wellness determined by Cisco Non‑exempt employees** receive 16 days of paid vacation time per full calendar year, accrued at rate of 4.92 hours per pay period for full-time employees Exempt employees participate in Cisco's flexible vacation time off program, which has no defined limit on how much vacation time eligible employees may use (subject to availability and some business limitations) 80 hours of sick time off provided on hire date and each January 1st thereafter, and up to 80 hours of unused sick time carried forward from one calendar year to the next Additional paid time away may be requested to deal with critical or emergency issues for family members Optional 10 paid days per full calendar year to volunteer For non‑sales roles, employees are also eligible to earn annual bonuses subject to Cisco's policies. Employees on sales plans earn performance‑based incentive pay on top of their base salary, which is split between quota and non‑quota components, subject to the applicable Cisco plan. 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 Once performance exceeds 100% attainment, incentive rates are at or above 1% for each 1% of attainment with no cap on incentive compensation. For non‑quota‑based sales performance elements such as strategic sales objectives, Cisco may pay 0% up to 125% of target. Cisco sales plans do not have a minimum threshold of performance for sales incentive compensation to be paid. The applicable full salary ranges for this position, by specific state, are listed below: New York City Metro Area: $183,800.00 - $303,100.00 Non‑Metro New York state & Washington state: $163,600.00 - $269,800.00 For quota‑based sales roles on Cisco's sales plan, the ranges provided in this posting include base pay and sales target incentive compensation combined. ** Employees in Illinois, whether exempt or non‑exempt, will participate in a unique time off program to meet local requirements. Cisco is an affirmative action and equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, gender, sexual orientation, national origin, genetic information, age, disability, veteran status, or any other legally protected basis. Cisco will consider for employment, on a case‑by‑case basis, qualified applicants with arrest and conviction records. #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

A leading AI solutions provider in San Francisco is seeking a Software Engineer for Robotics & Autonomous Systems. You will build production systems for data collection and model training, and collaborate with stakeholders. Ideal candidates have 3+ years in software engineering, strong programming skills, and experience with robotics or AV systems. This role offers a competitive salary range of $248,400 - $310,500 USD. #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

About Quizlet At Quizlet, our mission is to help every learner achieve their outcomes in the most effective and delightful way. Our $1B+ learning platform serves tens of millions of students every month, including two-thirds of U.S. high schoolers and half of U.S. college students, powering over 2 billion learning interactions monthly. We blend cognitive science with machine learning to personalize and enhance the learning experience for students, professionals, and lifelong learners alike. We're energized by the potential to power more learners through multiple approaches and various tools. Let's Build the Future of Learning Join us to design and deliver AI‑powered learning tools that scale across the world and unlock human potential. About the Role We're hiring a Staff Platform Engineer - Database Systems to be a core member of our Platform Engineering team. You'll contribute across the full infrastructure stack while bringing deep expertise in database systems, performance optimization, and data reliability. This role reports to the Senior Director of Technical Infrastructure. We're happy to share that this is an onsite position in our San Francisco office. To help foster team collaboration, we require that employees be in the office a minimum of three days per week: Monday, Wednesday, and Thursday and as needed by your manager or the company. We believe that this working environment facilitates increased work efficiency, team partnership, and supports growth as an employee and organization. In this role, you will Platform Reliability & System Resilience: Develop, test, and implement infrastructure automation and tooling to maintain 99.95% availability under peak load. Build self‑healing capabilities, optimize resource utilization across Kubernetes clusters (GKE), and contribute to platform‑wide resilience initiatives. Database Performance & Operations: Serve as the team's database expert, diagnosing and resolving performance issues across Cloud Spanner, PlanetScale MySQL, and BigQuery. Conduct query analysis, implement indexing strategies, and optimize connection pooling to maintain sub‑100ms p99 latency. Caching & Data Access Layer: Design and implement caching strategies using Memorystore (Redis/Memcached). Build high‑volume connection management systems (in Go or Python) that efficiently handle database and cache access patterns under sustained load. Infrastructure as Code & Automation: Manage platform infrastructure using Terraform and Kubernetes. Build automation that improves developer velocity, reduces MTTR, and enables safe, self‑service infrastructure operations. Observability & Operational Excellence: Design and deploy instrumentation within Datadog for monitoring databases, caches, and platform services. Use post‑incident analyses (e.g., Jeli) to reduce operational toil and improve service reliability. Architectural Consulting & Standards: Partner with Product Engineering teams to review designs, define SLOs, optimize data access patterns, and ensure new services are resilient and operable before production deployment. What you bring to the table Strong software engineering foundation - you write production‑quality code, design scalable systems, and can reason about distributed systems tradeoffs. 5-8 years of hands‑on database engineering experience in production environments handling significant scale (thousands of RPS or more). Deep MySQL expertise (replication, sharding, query optimization, connection management); PlanetScale experience a plus. Multi‑database proficiency with Cloud Spanner, Postgres, and/or BigQuery. Production experience with in‑memory caches (Redis, Memcached, or Valkey). Kubernetes (GKE preferred) and Terraform experience for infrastructure as code. Strong coding skills in Python or Go for automation, tooling, and platform services. Hands‑on experience with GCP database services (Cloud Spanner, Cloud SQL, Memorystore, BigQuery) and monitoring platforms like Datadog. Strong understanding of backup/recovery, HA patterns, and incident response. Bonus points if you have Experience with Vitess or PlanetScale MySQL. Knowledge of Istio service mesh and database connection management patterns. Experience with data streaming platforms (Kafka, Pub/Sub). Compensation, Benefits & Perks Quizlet is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. Salary transparency helps to mitigate unfair hiring practices when it comes to discrimination and pay gaps. Total compensation for this role is market competitive, including a starting base salary of $196,320 - $268,100, depending on location and experience, as well as company stock options. Collaborate with your manager and team to create a healthy work‑life balance. 20 vacation days that we expect you to take! Competitive health, dental, and vision insurance (100% employee and 75% dependent PPO, Dental, VSP Choice). Employer‑sponsored 401(k) plan with company match. Access to LinkedIn Learning and other resources to support professional growth. Paid Family Leave, FSA, HSA, Commuter benefits, and Wellness benefits. 40 hours of annual paid time off to participate in volunteer programs of choice. Why Join Quizlet? 🌎 Massive reach: 60M+ users, 1B+ interactions per week. 🧠 Cutting‑edge tech: Generative AI, adaptive learning, cognitive science. 📈 Strong momentum: Top‑tier investors, sustainable business, real traction. 🎯 Mission‑first: Work that makes a difference in people's lives. 🤝 Inclusive culture: Committed to equity, diversity, and belonging. In Closing At Quizlet, we're excited about passionate people joining our team-even if you don't check every box on the requirements list. We value unique perspectives and believe everyone has something meaningful to contribute. Our culture is all about taking initiative, learning through challenges, and striving for high‑quality work while staying curious and open to new ideas. We believe in honest, respectful communication, thoughtful collaboration, and creating a supportive space where everyone can grow and succeed together. Equal Opportunity Statement Quizlet's success as an online learning community depends on a strong commitment to diversity, equity, and inclusion. As an equal opportunity employer and a tech company committed to societal change, we welcome applicants from all backgrounds. Women, people of color, members of the LGBTQ+ community, individuals with disabilities, and veterans are strongly encouraged to apply. Come join us! To All Recruiters and Placement Agencies At this time, Quizlet does not accept unsolicited agency resumes and/or profiles. Please do not forward unsolicited agency resumes to our website or to any Quizlet employee. Quizlet will not pay fees to any third‑party agency or firm nor will it be responsible for any agency fees associated with unsolicited resumes. All unsolicited resumes received will be considered the property of Quizlet. #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

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 focused on precise location solutions seeks a Staff Engineer to join its Backend Services team. The role involves designing and maintaining backend services, contributing to system architecture, and working with technologies such as Java and Go. Ideal candidates have 8+ years of experience and a strong background in distributed systems. The company promotes a culture of collaboration, speed, and efficiency with opportunities for professional growth. #J-18808-Ljbffr

A leading cloud software company is seeking a Staff Product-Driven Backend Engineer in San Francisco. The role involves designing scalable systems and APIs, collaborating with cross-functional teams, and contributing to innovative features that enhance user experience. Ideal candidates will have over 10 years of experience in web applications and familiarity with PHP, Java, and MySQL. Join to help redefine enterprise collaboration through advanced integrations with Slack. #J-18808-Ljbffr

A leading HR and IT management company in San Francisco is seeking a Staff Full Stack Software Engineer for the Workforce Management team. The role requires 8+ years in backend development with expertise in Python and Django, focusing on building scalable systems and mentoring peers. The ideal candidate will thrive in a fast-paced environment and impact team culture significantly. This position offers a competitive salary, benefits, and equity, plus the opportunity to work collaboratively in-office three days a week. #J-18808-Ljbffr

A technology company in San Francisco is seeking a Staff Software Engineer to enhance their software engineering organization. The role involves designing full-stack systems for monitoring and managing distributed sensors on the electrical grid. Successful candidates will possess over 8 years of experience and skills in Python, TypeScript, and distributed systems. This position offers comprehensive benefits and opportunities for professional growth. #J-18808-Ljbffr

A leading platform for human + AI collaboration in San Francisco seeks a Staff CI/CD Engineer to enhance and develop high-performance CI/CD pipelines. The ideal candidate will have extensive experience in software engineering, particularly in CI/CD for large-scale environments, and possess strong leadership abilities. This role offers competitive compensation ranging from $248,000 to $282,000 annually, along with additional benefits and a hybrid work model. #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

A leading technology company in San Francisco is seeking a Senior Software Engineer to design and develop advanced diagnostic tools for Apple devices. The ideal candidate will have extensive experience in software development, particularly in Objective-C and Swift, and will play a key role in enhancing repair capabilities. Offers competitive salary and comprehensive benefits including stock options and educational reimbursement. #J-18808-Ljbffr

An innovative automotive technology firm in California is seeking a Senior Embedded Software Engineer to design and implement embedded software for vehicle power management systems. The ideal candidate will have a B.S.+ in a related field, with at least 2 years of embedded software development experience. Competitive salary range is between $146,900 and $183,600 with robust benefits including health insurance. #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

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