Backend Engineer at Plaud | San Francisco

About Plaud Inc.Plaud is revolutionizing workplace productivity by creating the world’s most trusted AI work companion. Our innovative note-taking solutions have garnered the love of over 1.5 million users globally since 2023. Our mission is to enhance human intelligence, crafting advanced infrastructure and interfaces that effectively capture and utilize various forms of human input.Based in San Francisco and incorporated in Delaware, Plaud Inc. is at the forefront of human–AI collaboration, blending hardware and software to create groundbreaking solutions. Our commitment to data security and privacy is reinforced by our compliance with SOC 2, HIPAA, GDPR, ISO27001, ISO27701, and EN18031 standards.Discover more about us at https://www.Plaud.ai and follow our journey on Instagram, X, Facebook, LinkedIn, and YouTube.

Join Rylo, an innovative camera company that captures stunning video effortlessly. Created by a team of former Instagram and Apple engineers, our cutting-edge stabilization software and user-friendly app make shooting, editing, and sharing videos a breeze. With Rylo, you can record without the stress of perfect framing, allowing you to create memorable videos with ease.Experience Rylo in actionAs an Algorithm Engineer, you will focus on developing core algorithms for the Rylo camera and upcoming products, enhancing both image quality and computational photography features. Your role will encompass the full lifecycle from algorithm design to deployment, ensuring high performance and quality.In our collaborative environment, you will work alongside software engineers, hardware engineers, and designers to expand the capabilities of consumer cameras. You will report directly to our CEO and co-founder, Alex Karpenko.

Join Cloudflare as a Senior Solutions Engineer, where you will leverage your technical expertise and fluency in Russian to provide exceptional solutions to our clients. In this role, you will work closely with both customers and internal teams to design and implement cutting-edge security and performance solutions tailored to meet diverse business needs.

About David AIDavid AI is pioneering the audio data research landscape, applying a rigorous R&D approach to dataset development akin to the methodologies used in AI labs for model creation. Our goal is to integrate AI seamlessly into real-world applications, with audio serving as the perfect entry point due to its inherent versatility and human connection. As the audio AI field progresses, the demand for high-quality training data becomes critical, and that's where David AI excels.Founded in 2024 by a team of experienced engineers and operators from Scale AI, David AI has quickly gained traction, serving prominent clients among FAANG companies and AI research labs. Recently, we secured a $50M Series B funding round from esteemed investors including Meritech, NVIDIA, Jack Altman (Alt Capital), Amplify Partners, and First Round Capital.Our team embodies intelligence, humility, ambition, and a close-knit ethos. We are on the lookout for exceptional talent in research, engineering, product, and operations to join us in advancing the frontiers of audio AI.About Our Engineering TeamAt David AI, our engineering team is responsible for constructing the pipelines, platforms, and models that convert raw audio into valuable data for top AI labs and enterprises. We pride ourselves on our collaborative environment, comprising product engineers, infrastructure specialists, and machine learning experts dedicated to leading the charge in audio data research.We operate at a fast pace, taking ownership of our projects from conception through to production. Our team develops real-time processing pipelines capable of managing terabytes of audio data daily while deploying innovative generative audio models.About This RoleAs a Product Engineer at David AI, you will design and implement state-of-the-art tools that enable our users to leverage audio data effectively for training their AI models. You will collaborate closely with researchers to continuously refine our data collection methodologies.Your ResponsibilitiesDeliver full-stack features that will be utilized by thousands of users on a daily basis.Develop scalable systems that create essential data processing pipelines, extracting actionable insights from terabytes of audio data each day.Construct, deploy, and assess LLM and DSP-based solutions to enhance our clients' comprehension of intricate features within our datasets.Rapidly iterate on research hypotheses by collaborating with researchers and the operations team to deploy enhancements efficiently.

Join Airwallex as a Staff Data ScientistAt Airwallex, we are revolutionizing the way global businesses manage their payments and finances. Our innovative platform empowers over 200,000 businesses worldwide, including esteemed names like Brex, Rippling, Navan, Qantas, and SHEIN, offering fully integrated solutions for business accounts, payments, spend management, treasury, and embedded finance.Founded in Melbourne, our talented team of over 2,000 professionals operates across 26 offices globally. With a valuation of US$8 billion and backing from top-tier investors like T. Rowe Price, Visa, and Mastercard, we are at the forefront of creating the financial platform of the future. If you're ready to embark on an extraordinary journey in your career, we invite you to join us.

Join David AI as a Staff Product EngineerAt David AI, we are pioneering the field of audio data research, applying a rigorous R&D methodology to create robust datasets that empower AI models. Our vision is to integrate AI seamlessly into daily life, with audio serving as the key medium. As the demand for high-quality training data grows, we position ourselves as the solution.Founded in 2024 by a team of seasoned engineers from Scale AI, we quickly garnered the trust of leading FAANG companies and AI labs. Our recent $50M Series B funding round was led by prestigious investors including Meritech and NVIDIA, underscoring our potential in the audio AI landscape.We pride ourselves on our dynamic, collaborative, and ambitious team, and we are on the lookout for exceptional talent in research, engineering, product, and operations to help us redefine audio AI.About Our Engineering TeamOur engineering team is at the forefront of innovation, building the infrastructure, platforms, and models that convert raw audio into valuable data for top-tier AI labs and enterprises. We are a close-knit group of product engineers, infrastructure experts, and machine learning specialists who are dedicated to establishing the first-ever audio data research organization.We operate with agility, taking ownership of our projects from inception to deployment, delivering production-ready solutions on a daily basis. Our engineers design real-time pipelines that manage vast amounts of speech data while deploying advanced generative audio models.Your RoleAs a Staff Product Engineer, you will spearhead our Product Engineering team, developing state-of-the-art products that enable our clients to harness audio data effectively for model training. You will collaborate with researchers to continually refine our data collection methodologies.Your ResponsibilitiesLead the development of full-stack features, rapidly iterating to deliver daily innovations to our users.Construct scalable systems that process terabytes of audio data and extract actionable insights.Deploy and assess LLM- and DSP-based solutions to enhance customer understanding of their data.Facilitate research iterations and deployment interfaces for data collection in collaboration with researchers and operations.

Join Canva as a Product Manager specializing in Algorithms, where you'll play a vital role in shaping the future of our product offerings. In this dynamic position, you will collaborate with cross-functional teams to develop innovative algorithms that enhance our user experience. Your analytical mindset and strategic thinking will drive the implementation of data-driven solutions, enabling Canva to maintain its competitive edge in the design industry.

Join Our Innovative Team at David AIDavid AI is pioneering the audio data research landscape. We adopt a rigorous R&D methodology for developing datasets that parallels the standards upheld by leading AI laboratories. Our vision is to seamlessly integrate AI into everyday experiences, with audio serving as the perfect conduit. The evolution of audio AI is rapidly unfolding, yet the availability of high-quality training data remains a critical challenge. This is where David AI steps in.Founded in 2024 by a talented group of former engineers and operators from Scale AI, we have quickly become a trusted partner to numerous FAANG companies and AI research labs. Recently, we secured $50 million in a Series B funding round with notable investors, including Meritech, NVIDIA, and Alt Capital.Our culture is built on sharp intellect, humility, ambition, and a close-knit community. We invite exceptional minds in research, engineering, product development, and operations to join us as we advance the field of audio AI.Research Team OverviewAt David AI, we are convinced that superior model capabilities stem from high-quality, differentiated data. Our research team is dedicated to conducting ambitious, long-term studies into audio technology while collaborating with both internal and external partners to implement cutting-edge research insights into practical applications.Your Role as a Founding Audio AI Research EngineerIn this position, you will establish the research framework that influences how premier AI labs develop their audio models. You will have access to a top-tier team of human AI trainers, robust computing resources, and the autonomy to shape your research agenda.Key ResponsibilitiesCreate and implement comprehensive evaluation frameworks for assessing audio AI capabilities in areas such as speech, emotion detection, conversational dynamics, and acoustic patterns.Investigate and prototype innovative methodologies for audio quality assessment, automated labeling, and optimizing data collection processes.Design focused data collection pipelines aimed at capturing novel, high-value audio capabilities.Develop automated systems for ongoing classifier enhancement and prompt engineering evaluation.Assess cutting-edge models and formulate actionable research strategies.Publish your findings in prestigious conferences.

Role overview The City and County of San Francisco is seeking an Associate Engineer to join the Environmental department. This position plays a part in citywide efforts to improve public health and meet sustainability targets. The work centers on supporting projects that benefit the community and the environment. What you will do Assist with planning, designing, and carrying out environmental initiatives Collaborate with colleagues on projects that make a direct impact in San Francisco neighborhoods Contribute to efforts that promote public health and advance sustainability throughout the city Location This role is located in San Francisco.

The City and County of San Francisco seeks a Senior Stationary Engineer to help operate and maintain stationary engines and mechanical systems in city facilities. This full-time position plays a key role in keeping heating, cooling, and power systems running smoothly for the community. What you will do Operate and maintain stationary engines and related equipment in municipal buildings Monitor system performance to keep heating, cooling, and power operations efficient Handle both routine and emergency maintenance tasks as they come up Work closely with colleagues to ensure continuous city services Requirements Solid understanding of mechanical systems and stationary equipment Dedication to safety and sustainable work practices Ability to contribute effectively within a team Experience supporting building infrastructure operations Location This role is based in San Francisco.

Join Cloudflare as a Senior Solutions Engineer, where your expertise will empower businesses to thrive in a digital-first world. In this role, you will leverage your technical knowledge and interpersonal skills to develop innovative solutions that meet our clients' needs. As a Ukrainian speaker, you will help us engage with diverse clients and enhance our global outreach.We are looking for a dynamic individual who is passionate about technology and customer success. You will work closely with cross-functional teams to design and implement cutting-edge solutions, ensuring that our clients receive the utmost value from our services.

Join the San Francisco Public Library as a Stationary Engineer. Under general supervision, you will operate, maintain, troubleshoot, and repair various pumping, heating, ventilating, air conditioning, refrigeration, and auxiliary plant machinery and equipment across Library locations, including the Main Library, 27 branch libraries, and two support facilities. Your role will ensure all equipment and systems operate efficiently and safely while adhering to applicable safety standards.Key Responsibilities:Operate, maintain, and repair a diverse range of mechanical systems, ensuring safe and efficient functionality, potentially using computerized building management and maintenance systems.Conduct thorough inspections of machinery and equipment, ensuring compliance with safety protocols and operational efficiency.Maintain accurate logs of operational data, including gauge readings and water quality analyses, to uphold preventative maintenance standards.Manage the safe storage and handling of treatment chemicals, including potential hazardous materials, ensuring compliance with safety regulations.Communicate effectively with contractors, building tenants, and the public to fulfill your duties.Ensure security of the facilities and respond to emergencies as part of the response team.Perform control tests on water samples to maintain water quality and compliance with State regulations, including conducting water analysis as required.

Join David AIAt David AI, we are pioneering the audio data research landscape. Our research and development approach to data ensures that we deliver datasets with the same precision and rigor that leading AI labs apply to their models. Our mission is to seamlessly integrate AI into everyday life, leveraging audio as a key channel. As we witness advancements in audio AI and the emergence of new use cases, we recognize that high-quality training data is the critical component. This is where David AI steps in.Founded in 2024 by a group of former engineers and operators from Scale AI, we have rapidly established partnerships with major FAANG companies and AI labs. Recently, we secured a $50M Series B funding round from prominent investors including Meritech, NVIDIA, Jack Altman (Alt Capital), Amplify Partners, and First Round Capital.Our team is sharp, humble, and ambitious. We are on the lookout for talented individuals in research, engineering, product management, and operations to join us in our mission to redefine the audio AI landscape.About Our Machine Learning TeamOur Machine Learning team operates at the forefront of innovative research and practical application, transforming raw audio into high-quality data for top AI labs and enterprises. We manage the entire machine learning lifecycle—from exploring novel speech processing algorithms to deploying models that handle terabytes of audio data daily.Your RoleAs an Applied ML Engineer at David AI, you will develop state-of-the-art speech and audio models, establish production inference systems, and create robust pipelines that demonstrate the true potential of high-quality data.Key ResponsibilitiesResearch and Design: Create solutions using advanced signal processing algorithms and cutting-edge ML models tailored for speech and audio applications.Development: Build production-grade inference algorithms, pipelines, and APIs in collaboration with cross-functional teams to extract valuable insights for our clients.Collaboration: Work alongside our Operations team to gather valuable training and evaluation datasets to enhance our model quality.Architecture: Design systems that ensure durable and resilient inference and evaluations.

Role overview Thunes seeks an IT Engineer in San Francisco to support the technology foundation of its international business. This position centers on designing, implementing, and maintaining IT infrastructure and systems that enable daily operations. What you will do Design and implement IT infrastructure that aligns with business requirements Maintain and troubleshoot systems supporting global operations Collaborate with teams throughout the company to enhance service delivery and system performance Location This role is based in San Francisco, California, United States.

About Flow EngineeringFlow Engineering is at the forefront of revolutionizing how humanity constructs its most intricate machines. Our platform is the premier tool for complex systems engineering, embraced by pioneering teams in sectors such as aerospace, defense, automotive, aviation, and robotics. If a company is aiming for the Moon, developing fusion energy, or planning the first interplanetary settlement, they are likely utilizing Flow Engineering to achieve those ambitious goals.We are proudly backed by Sequoia Capital, with notable angel investors including Patrick and John Collison (Stripe), David Helgason (Unity), and Kyle Parrish (Figma).About the RoleAs one of our pioneering Forward Deployed Engineers, you will operate at the crucial intersection of sales, engineering, and customer engagement. Your role involves comprehending how advanced hardware teams operate, guiding deployments, and facilitating adoption, ensuring that our customers are equipped with the insights and tools necessary to attain significant results.This position is perfect for individuals who have a background in hardware engineering and have a passion for collaborating with customers to solve complex challenges. You will empower leading hardware companies to transform their operational methodologies.What You’ll DoOwn the Technical Win: You will play a vital role in the sales process, driving custom demos and managing trial/POC execution, which is critical for securing new business for Flow Engineering.Understand and Map Customer Workflows: Collaborate with clients to gain a comprehensive understanding of their workflow, address pain points, and prioritize solutions tailored to their needs.Conduct Technical Enablement Sessions: Identify and showcase how Flow can enhance the customer’s development process through workshops, training, and collaborative solution sessions.Shape Our Roadmap: Act as the liaison between our customers and the engineering team to develop innovative solutions. Your insights will be essential in crafting the future roadmap of our product.Establish the GTM Foundation: Assist in developing and defining Flow’s activation strategies for key customers. You will contribute to the design of our technical GTM playbook, implementation guides, and training materials for future team members.About YouSolid Software Engineering Fundamentals: Proficient in designing, testing, and operating services at scale within a cloud environment.Excellent Communication Skills: Ability to convey technical concepts effectively to both technical and non-technical audiences.Customer-Centric Focus: Passionate about collaborating with customers and driven to solve their challenges.Proactive Problem-Solving: Ability to anticipate and address customer needs before they arise.

About SunoAt Suno, we are revolutionizing the music landscape by harnessing the power of cutting-edge AI technology. Our mission is to enhance creativity and foster musical expression through our innovative platform, which features the groundbreaking Suno Studio—a generative audio workstation designed for everyone from casual creators to professional musicians. Join our mission to empower a global community to craft, share, and experience music like never before.About the RoleAs an integral member of our Professional Creation team, you will contribute to the development of tools that redefine the creative process for artists, songwriters, and producers. Your work will directly influence how music is produced globally, enabling you to leave a lasting impact on the industry.Explore the Suno version of this role here!What You’ll DoDesign and implement engaging web interfaces that facilitate music creation and editing, particularly within our flagship product, Suno Studio.Take full ownership of specific product features, driving them from concept to launch for millions of users worldwide.Enhance the performance, aesthetics, and user experience of our applications, ensuring a delightful interaction for all users.Immerse yourself in the creative process—let your passion for music shine through your work!What You’ll NeedA minimum of 3 years of experience in delivering production-ready web applications.Proficiency in Typescript, React, CSS, and SQL.Demonstrated experience in developing complex, responsive web applications, with the ability to translate designs into scalable code.A deep passion for user experience, attention to detail, and a strong commitment to rapid iteration and improvement.Experience with multi-threaded web applications and WebGL is a plus.Familiarity with DSP and audio frameworks such as Juce is advantageous.A genuine love for music—whether it's listening, composing, or exploring new genres—is essential.A Bachelor’s degree or equivalent qualification is required.Additional Notes: Candidates must be authorized to work in the U.S.BenefitsEquity compensation package401(k) plan with a company matchComprehensive health benefitsFlexible work hours and remote work options

About HyperspellHyperspell is revolutionizing the Memory & Context Layer for AI Agents.AI agents are brilliant yet lack context.While AI agents excel in standardized testing, they struggle with real-world applications. Today's cutting-edge agents lack the contextual understanding that humans naturally acquire through diverse interactions. This context evolves with their tasks.Hyperspell empowers AI agents with contextual awareness by integrating with users' workspace data, creating a tailored memory and context layer.Our ValuesWe are committed to shaping the future through bold innovations. Our goal is to establish ourselves as the indispensable context layer for organizations, enabling all their AI agents to connect seamlessly. We embark on this journey not because it is easy, but because it is significant.We prioritize care — for our customers, their success, the future of AI, and most importantly, for one another. As we build the frontier of AI, we strive to be one of the most technologically advanced yet profoundly human companies in history — a place where we can enjoy shaping the future together.Our InvestorsOur vision is supported by esteemed investors such as Y Combinator, Afore Capital, Scribble Ventures, and Pioneer Fund. Our angel investors include leading figures from OpenAI, Anthropic, xAI, and DeepMind, alongside respected founders from Silicon Valley like Siqi Chen (Runway) and Julian Weisser (On Deck).Our FoundersFounded in 2024 by Conor Brennan-Burke and Manu Ebert, Hyperspell is driven by experienced leaders. Conor previously spearheaded growth at Checkr, overseeing a $30 million API product portfolio and earning the title of 'the most helpful founder in YC'.Manu brings over 15 years of expertise in machine learning and AI, having successfully sold two companies and led high-growth engineering teams at Airbnb. Interestingly, he acquired his first .ai domain in 2014, needing to send a fax to the domain authority in Anguilla to do so.About the RoleAs our founding platform engineer, your mission will be to construct the infrastructure that makes Hyperspell feel magical — swift, dependable, and effortlessly scalable. You will be responsible for the foundation upon which our entire product is built, ensuring that when customers entrust us with their data, we uphold their trust.

About daydreamAt daydream, we are revolutionizing the SEO landscape by developing the world's most advanced SEO agent, complemented by a team of top 1% human experts. Our goal is to manage organic search intricately, freeing our clients from the burdens of hiring specialized teams, evaluating multiple tools, or managing external agencies.In today's competitive environment, excelling in search demands the production of expert-level content at scale, alongside constant adaptation to shifts in ranking systems and user behavior. Traditional tools merely provide metrics without actionable insights, while agencies rely on cumbersome manual workflows that fail to generate compounding growth. Even well-resourced teams often find it challenging to translate sustained efforts into consistent results.daydream simplifies this landscape by consolidating fragmented tools and external vendors into a single coherent system that continuously plans and executes SEO strategies. Our SEO agent takes charge of analysis, planning, and content generation, while seasoned Growth Leads translate this work into actionable outputs—shipped pages, technical adjustments, and updated priorities—holding accountability for performance over time.We have successfully raised over $20M from notable investors including First Round Capital, Basis Set Ventures, WndrCo, and SOMA Capital, and our growth is supported by industry leaders from Notion, Airtable, Webflow, and Dropbox, such as Lenny Rachitsky and Eli Schwartz, author of Product-Led SEO.The TeamYou will collaborate closely with a dedicated, senior team across engineering, design, and growth:Shravan (CTO), who previously served as an Engineering Lead at Flixed and a Software Engineer at Facebook, focusing on large-scale web scraping for Facebook Jobs and Meta Reality Labs.Vishruth (Founding Applied AI Engineer), a former Data Scientist at Klaviyo specializing in NLP, with a robust research background from Cornell.Daniel (Founding Applied AI Engineer), who previously worked as a Data Engineer on Tesla’s Autopilot team, specializing in large-scale data systems and applied machine learning, and was formerly the Lead Data Engineer at Replit.Tom (Founding Designer), who led product design at Blockless and plays a significant role in UI engineering.You will also interact directly with Growth Leads, senior SEO practitioners who manage the system daily and provide invaluable feedback on AI performance in real-world applications.Your ImpactIn your role as a Staff Engineer at daydream, you will provide vital technical leadership across the product while remaining deeply engaged in hands-on execution. You will closely collaborate with the CTO to define system architecture, guide project execution, and elevate quality standards throughout the engineering organization.

SquareTrade delivers protection plans and insurance products to a large customer base. The Engineering team develops and maintains the systems behind these services, ensuring reliability and efficiency. Role overview The Software Engineer position in San Francisco centers on building and enhancing technology that supports SquareTrade’s commitment to customer service. This role involves tackling projects that promote technical growth and hands-on problem-solving. What you will do Contribute to the design, development, and maintenance of systems supporting SquareTrade’s services Work with other engineers to solve technical challenges and improve existing solutions Participate in projects that encourage learning and skill development Location This position is based in San Francisco.