About xAIAt xAI, we strive to develop advanced AI systems that comprehensively understand the complexities of the universe and assist humanity in its quest for knowledge. Our dedicated team is small yet highly motivated, emphasizing engineering excellence and innovation. We cherish those who constantly seek challenges and thrive on curiosity. Our culture promotes a flat organizational structure, encouraging every team member to be hands-on and directly contribute to our mission. We recognize leadership based on initiative and consistent performance, valuing a strong work ethic and prioritization skills. Effective communication is key; all employees must convey knowledge clearly and accurately to their peers. About the RoleAs a Quantitative Finance Specialist, you will be instrumental in enhancing xAI's cutting-edge AI systems by providing expert annotations, evaluations, and insights using specialized labeling tools. You will collaborate closely with our technical teams to drive the development and optimization of new AI capabilities, particularly within the realm of quantitative trading.Your expertise will enable you to tackle complex problems in systematic and quantitative strategies—encompassing statistical arbitrage, factor investing, market microstructure modeling, high-frequency execution algorithms, risk premia harvesting, machine learning-driven alpha generation, and portfolio optimization under real-world constraints. This role demands strong analytical abilities, rapid adaptability to shifting guidelines, and the capacity to deliver thorough, technically robust critiques and solutions in a dynamic environment.Impact of the Quantitative Finance Specialist on xAI's MissionIn this pivotal role, you will directly contribute to xAI's mission by assisting in the training and refinement of our state-of-the-art AI models. You will impart knowledge on how quantitative traders analyze markets, evaluate signals, manage risks, and navigate complex financial datasets and systems.This includes delivering high-quality data across various formats (text, audio, video), crafting detailed annotations, critiquing model outputs, providing recorded audio explanations, and occasionally engaging in structured video sessions. We seek individuals who are enthusiastic about shaping the future of AI and finance.

Join Binance, a premier global blockchain ecosystem powering the world’s largest cryptocurrency exchange by trading volume and registered users. As a Quantitative Researcher, you will play a pivotal role in developing and enhancing quantitative models that drive our trading strategies and financial products. You will conduct in-depth research and analysis of market trends, create robust algorithms, and collaborate with a team of experts to deliver innovative solutions that enhance our trading performance. Your insights will directly influence our strategic decisions and contribute to our mission of providing secure, transparent, and effective financial services to over 300 million users worldwide.

Hello! I’m Abhik, Co-Founder and VP of Engineering at Ashby. We are on the lookout for a driven and innovative full-stack software engineer who is passionate about addressing customer needs and making strategic long-term contributions to our evolving software products.At Ashby, you will experience the best of both worlds: the dynamic and empowering environment of a startup combined with the stability and scalability of a growth-stage company. Enjoy the autonomy to create product specifications, influence design decisions, and develop solutions in an environment that minimizes meetings. You will work on a platform that serves tens of thousands of daily users who rely on your contributions and are excited about upcoming features.We proudly serve prominent clients like Notion, Linear, Shopify, and Snowflake. Our impressive growth metrics, including a multi-million ARR and over 100% year-over-year growth with minimal churn, position us as industry leaders. We're eager to share more insights about our success during our conversation.You may have seen our job posting before as we are consistently expanding our team—we're projected to double in size this year! We're brimming with innovative ideas to enhance Talent Acquisition through software and are venturing into new product domains. Rest assured, we review every application and strive to respond within 3-4 days, often sooner.Role Overview and Work CultureOur engineering culture is designed to foster innovation and ownership, reminiscent of the environments where we thrived as individual contributors. I began my career developing software for the Visual Effects industry, where I learned the importance of understanding user needs and collaborating closely with stakeholders. This experience shaped my approach to product management, design, and agile development without the constraints of excessive meetings.Here at Ashby, we encourage creativity and provide our engineers with the autonomy and responsibility to drive meaningful change. We focus on problem-solving rather than merely ticket resolution, which cultivates an atmosphere ripe for innovation.

About PostHogAt PostHog, we are revolutionizing the way companies operate by providing a comprehensive suite of products essential for business growth and success from inception to IPO and beyond. Our platform serves as the ultimate operating system for software developers.Originating with open-source product analytics, PostHog emerged from Y Combinator's W20 cohort. Since then, we have launched over a dozen innovative products, including:A built-in data warehouse that allows users to seamlessly query and analyze product and customer data using custom SQL insights.A customer data platform designed for effortless data integration and management.PostHog AI, our AI-powered analyst that assists users in uncovering product insights, locating valuable session recordings, and generating custom SQL queries.As we look ahead, our roadmap includes exciting new offerings such as CRM, Workflow, revenue analytics, and support products. We truly embody the promise of delivering every tool businesses need to thrive!We are:Product-led: Over 100,000 companies trust PostHog, primarily driven by word-of-mouth, underscoring our exceptional product-market fit.Default alive: With an average revenue growth of 10% month-over-month, we prioritize efficiency and growth through strategic funding.Well-funded: Having raised over $100 million from leading investors, we are well-positioned for an ambitious and long-term journey.Our focus is on building outstanding products for our users, hiring exceptional talent, delivering quickly, and embracing our unique culture.

About the PositionWe are on the lookout for a Machine Learning Engineer specialized in model distillation to assist us in developing compact, rapid, and efficient models while maintaining high-quality standards. This role will involve blending research with practical applications—transforming state-of-the-art methodologies into scalable systems.This is a proactive role offering significant ownership: you will design distillation pipelines, conduct extensive experiments, and deliver models utilized in production environments.Your ResponsibilitiesDesign and implement knowledge distillation pipelines (including teacher-student, self-distillation, multi-teacher approaches, and more).Convert large foundational models into more compact, efficient, and cost-effective models for inference.Execute and scrutinize large-scale training experiments to assess quality, latency, and cost trade-offs.Work closely with research teams to adapt innovative distillation concepts into production-ready code.Enhance training and inference efficiency (memory usage, throughput, and latency).Contribute to the development of internal tools, evaluation frameworks, and experiment tracking systems.(Optional) Engage in contributing to open-source models, tools, or research.Ideal Candidate ProfileRobust background in machine learning and deep learning.Hands-on experience with model distillation techniques (including LLMs or other neural networks).Strong grasp of training dynamics, loss functions, and optimization strategies.Proficiency in PyTorch (or JAX) along with contemporary ML tools.Comfortable conducting experiments across multi-GPU or distributed configurations.Ability to critically evaluate model quality versus performance trade-offs.Pragmatic outlook: you prioritize deployment over merely publishing research.Preferred QualificationsExperience in distilling large language models or sizable sequence models.Familiarity with inference optimization techniques (like quantization, pruning, kernels, etc.).Experience in evaluating language models.Contributions to open-source projects or research publications.Experience in early-stage product development.

Join us at Linear, where we are redefining the landscape of software development. Our mission is to reinvigorate the software experience by empowering product teams with an innovative issue tracking and project management tool that marries stunning UI with unmatched performance. Since our inception in 2019, Linear has swiftly become the go-to platform for over 20,000 companies striving to elevate their product development processes.Operating fully remotely from day one, our dynamic team is spread across North America and Europe. We share a unified vision driven by a commitment to excellence, swift execution, and a genuine passion for software craftsmanship. As makers at heart, we place great importance on the quality of our work.In our tight-knit team, versatility is key; we embrace challenges and foster a culture of continuous learning. We are in search of seasoned professionals who can tackle complex problems in both product and code. Our technology stack prominently features TypeScript, enabling us to build scalable systems that support ongoing progress on a robust foundation. While expertise in every tool we utilize isn’t mandatory, a solid grounding in JavaScript and experience with React and TypeScript are essential.Please note: We are an equal opportunity employer and operate as a remote-only company. Currently, we can only consider candidates within most European time zones for this role.Your ResponsibilitiesDesign and develop new user-facing features utilizing visually appealing and scalable UI components.Collaborate closely with founders and design teams to swiftly implement innovative feature concepts.Construct intricate React components, from drag & drop functionalities to virtualized large data rendering.Integrate real-time collaborative editing capabilities into our content editor.Enhance application performance through careful profiling.Redefine and implement best-in-class software development processes to create a purpose-built product.Our Technology StackOur technology stack mirrors the systems we build and operate. While we don’t expect you to be proficient in every technology listed, you should be enthusiastic about collaborating on product development, performance optimization, and scaling real-world applications.Pluggable agentic workload system leveraging Temporal, designed for production-scale operations.Custom websocket data synchronization framework optimized for speed and offline capabilities.Frontend technologies include React, MobX, and styled-components.Robust, widely adopted GraphQL API and SDK.Backend technologies include Node.js, PostgreSQL, Temporal, and Redis.

At Acorns, we are dedicated to supporting the financial well-being of aspiring individuals through innovative micro-investing solutions. Our core values shape our approach to achieving this mission. We lead with heart, making bold decisions, building trust, embracing growth, and finding ways to overcome challenges. We invite you to join us in our commitment to enhancing financial wellness for families everywhere. As a Senior Backend Software Engineer at Acorns, you will play a pivotal role in developing and scaling our essential investment products. This position goes beyond mere execution; you will ensure the technical integrity and evolution of our systems, impacting millions of customers as they build their wealth over time. You will face complex technical challenges, mentor junior engineers, and maintain robust backend infrastructure as we broaden our financial wellness offerings. Our remote-first culture provides you with the flexibility to work from anywhere, with optional access to our office in Irvine, CA.

At Speechify, our mission is to eliminate barriers to learning through innovative technology. As a Senior iOS Engineer, you will play a pivotal role in enhancing our iOS app, which is celebrated as the #18 productivity app on the App Store and recognized with Apple’s 2025 Design Award for inclusivity. You will be part of a 100% remote team dedicated to creating exceptional user experiences by developing and maintaining our complex app architecture while actively contributing to product decisions and discussions. Join us in pushing the boundaries of what's possible in text-to-speech technology.

At Speechify, we are driven by the mission to eliminate reading barriers and enhance learning experiences. Our innovative text-to-speech technology empowers over 50 million users to effortlessly convert any reading material—from PDFs and books to Google Docs and websites—into engaging audio. Our product suite includes the iOS app, Android app, Mac app, Chrome extension, and web app. With accolades such as Chrome Extension of the Year and Apple's App of the Day, we are proud of our achievements in making reading accessible for everyone.As a fully remote organization, we are home to nearly 200 talented individuals from diverse backgrounds, including frontend and backend engineers, AI research scientists, and experts from renowned companies like Amazon, Microsoft, and Google, as well as graduates from prestigious institutions such as Stanford. We foster a collaborative and dynamic work environment without a centralized office.Position OverviewTo support our rapidly growing iOS app—currently ranked as the #18 productivity app in the App Store and recently recognized with Apple’s 2025 Design Award for Inclusivity—we are seeking a Senior iOS Engineer. This pivotal role requires a strategic thinker who thrives in fast-paced environments and is passionate about creating exceptional user experiences while driving product innovation.Our flat organizational structure empowers team members to take on leadership roles by demonstrating technical excellence and delivering consistent results. A strong work ethic, effective communication skills, and a relentless drive to succeed are essential attributes we value.The interview process will include multiple technical assessments, with a goal of completing them within one week.

Join Propr.xyz, a pioneering company reshaping the prop trading industry by developing an innovative Operating System designed for prop firms. We empower these firms to utilize cutting-edge blockchain technology, enhancing their operational efficiency. Our solutions include perpetual futures on Hyperliquid, dynamic prediction markets, and a range of spot assets. As we roll out our technology to some of the world's largest prop firms, we seek exceptional talent to join our fast-paced and rewarding journey. We are committed to hiring only A-players.

Canonical seeks a talented Software Engineer to join our Solutions Engineering team, working remotely from anywhere in the world. As a leading provider of open-source software, we empower enterprises with our widely adopted Ubuntu platform, driving innovation across public cloud, data science, AI, engineering, and IoT sectors. You'll play a pivotal role in transforming open-source IT and DevOps operations, enabling high-performance computing, private cloud, and advanced analytics through infrastructure-as-code. Collaborate closely with our managed infrastructure operations team to refine our products based on real-world experiences while developing Python-based automation tools that simplify operations for users globally. If you are passionate about distributed systems and cloud computing, and eager to work on the cutting edge of software engineering, we invite you to apply.

Why Clipboard Exists:At Clipboard, our mission is to empower individuals to ascend the socioeconomic ladder by transforming their extra time and ambition into meaningful career growth and financial opportunities. Our innovative app-based marketplace connects professionals with workplaces, enabling on-demand shift bookings that benefit both parties.About Clipboard:Clipboard is a rapidly expanding Series C company recognized as a leader in the Long Term Care sector, with plans to diversify into additional areas such as Dental Offices and Schools. As a YC Top Company, our global team of over 700 professionals operates remotely, having achieved profitability since 2022. We facilitate millions of shifts annually across the U.S., serving tens of thousands of professionals. Join us in our mission to further expand our impact. Learn more about our vision on our website here.Your Mission: Innovate, Execute, and Deliver ImpactAs a Backend Software Engineer at Clipboard, you will go beyond writing code—you will design solutions that redefine the connection between healthcare professionals and facilities. Collaborating with product managers, designers, and fellow engineers, you will develop impactful features that address real-world challenges. This is a dynamic and ongoing recruitment effort, as we consistently seek talented software engineers to join our growing team.What You’ll Do: Own the Code, Shape the FutureDeliver High-Quality, Scalable CodeCraft performant backend services utilizing Node/NestJS alongside responsive frontend features using React and TypeScript.Utilize MongoDB, Postgres, and Redis to maintain data integrity and optimize performance at scale.Develop Reusable Components and UtilitiesContribute clean, modular code for our web and mobile applications (Ionic/React, Dart/Flutter).Collaborate with the Developer Experience (DevX) team to enhance tools and libraries that increase productivity and streamline workflows.

Join Canonical as a Director of Software Engineering and lead cross-functional teams in a remote-first environment. You will oversee multiple engineering projects, ensuring alignment across diverse teams and time zones. Your leadership will empower engineering managers and staff engineers to excel in building innovative solutions. As part of a visionary company, you will contribute to transforming the tech landscape through open source technologies, making them more accessible, reliable, and secure. We value your expertise in fostering a culture of excellence and high expectations, driving quality, performance, and continuous learning within your teams. Your role will involve collaborating on exciting software products that align with your interests once you advance through the interview process.

Are you a talented software developer eager to tackle real-world challenges with innovative solutions? Join Jobber, where we are on the lookout for a driven Intermediate Software Engineer to enhance our dynamic Software Engineering team.At Jobber, our mission goes beyond just building products; we strive to empower small businesses to succeed by solving their most pressing problems. Our core values—humility, supportiveness, and genuine care—are more than just words; they are integral to our culture. We cultivate a collaborative environment that encourages team autonomy and directly influences the company’s trajectory. Our iterative release process allows us to address technical debt while continuously gathering feedback from our customers to refine their experiences.We prioritize professional growth with abundant onboarding resources, tutorials, hackathons, and mentorship opportunities. Our diverse teams provide a rich ground for learning and collaboration. Our leaders are empathetic, committed to fostering a healthy work-life balance, and dedicated to helping you achieve your career aspirations.The Role:As an Intermediate Software Engineer reporting to the Software Engineering Manager, you will work alongside fellow developers in a Scrum team to create an industry-leading product that supports our customers' success. We seek individuals ready to confront the challenges faced by millions of entrepreneurs and eager to advance their skills while contributing to a cohesive team effort.In this position, you will be committed to producing well-tested, scalable, and organized code. You’ll find opportunities to learn, collaborate, and grow while ensuring the delivery of high-quality solutions.Your Responsibilities:Design, develop, and deliver features that meet customer needs, collaborating with cross-functional teams.Engage closely with senior engineers to clarify requirements and define technical solutions.Write, review, and maintain clean, scalable, and well-documented code.Participate in code reviews to uphold code quality and maintainability.Work with your team to identify and resolve technical challenges.

At plantingspace, we are pioneering an innovative AI system tailored for analysts and scientists, leveraging a revolutionary approach to reasoning and knowledge representation. Our technology surpasses traditional state-of-the-art LLMs by intricately combining algorithms in a symbolic manner, enabling groundbreaking features such as multi-step analysis, transparent reasoning paths, and uncertainty assessment. We envision our applications transforming research and analysis across various fields, including Finance, Strategy Consulting, Engineering, Material Sciences, and beyond.We seek passionate Bayesian Software Engineers equipped with a solid background in Bayesian statistics to contribute to the development of our advanced models and algorithms for statistical inference and machine learning. Your role will involve designing, implementing, and optimizing statistical procedures that can be applied to a diverse range of models, all of which will be integrated within our expansive software system.

Join Acorns, where our mission is to champion the financial well-being of emerging investors, starting with the empowering journey of micro-investing. We achieve this through our core values.Lead With Heart - Inspire yourself and others with compassion, integrity, and determination to transcend previous limits of possibility.Make Bold Decisions - We are pioneers of a new era. Embrace optimism, adventure, and courage as you leap into the future.Always Build Trust - Communicate with honesty and accountability. We are all owners, united as one team.Never Stop Growing - Change is the only constant. Stay curious and relentless in your pursuit of progress.Find a Way - Never settle for less; make the impossible possible.Our values guide our actions, and our mission fuels our passion. Join us in delivering financial wellness for families, empowering everyone with the tools for wealth creation.____________________________________________________________________Software Engineering Intern | AcornsAcorns invites current college juniors (graduating in 2027) to apply for our Software Engineering Internship. This 10-week program will take place during the Summer of 2026.As a Software Engineering Intern at Acorns, you will play a crucial role in translating high-level business requirements into innovative services, systems, and data models that drive our products and features. You'll think critically to design and build components that are performant, scalable, and reliable while balancing technical excellence with real-world business needs.You will work closely with product, mobile, frontend, and QA teams to plan, develop, and launch meaningful features and infrastructure that enhance our cohesive financial products. Our internship emphasizes collaboration and end-to-end ownership, allowing you to lead a dedicated project from conception through delivery. You'll define requirements with stakeholders, design the technical architecture, and implement solutions while being fully integrated into the daily operations of the engineering team.This experience culminates in a company-wide presentation, showcasing your project learnings and contributions.

Join a Dynamic Team Where Art Meets Science!Known is an innovative marketing agency, expertly designed to tackle the unique challenges and seize the unprecedented opportunities facing today's marketers. Our diverse team of over 250 professionals includes PhD-level data scientists, award-winning creatives, skilled strategists, and expert researchers, all working together to create groundbreaking and culturally resonant work. We believe that genuine collaboration between creativity, science, strategy, and technology leads to extraordinary outcomes.Recognized by Ad Age as one of the top agencies in the industry, we are incredibly proud to have been awarded a spot on The Agency A-List for 2024 & 2025 and to be celebrated as Ad Age’s Data & Insights Agency of the Year for three consecutive years. Our partnerships with leading brands across finance, technology, entertainment, media, CPG, real estate, and beyond are the cornerstone of our success, enabling us to receive numerous accolades including Emmys, Clios, Effies, Cannes Lions Awards, and more.At Known, we are committed to hiring the best talent. Being a Knowner means you are a curious innovator, a knowledge-seeker who is dedicated to continuous improvement for our clients, our team, and the world. Our offices across the U.S. are open, and while many team members enjoy a hybrid working model, we embrace a distributed workforce with numerous Knowners working remotely.Now, Let's Focus on You!As a Senior Software Engineer at Known, you will engage in a variety of projects within small, focused teams, allowing you to significantly shape our products, team practices, and the overall technical culture of the organization! Given the project-driven nature of our work, you’ll consistently have the opportunity to learn new skills and master industry-leading technologies. On the backend, you will design and implement distributed systems, API endpoints, event-driven microservices, asynchronous and parallel programming, as well as data pipelines and reporting systems.

Are you a talented software developer ready to tackle real-world challenges with innovative solutions?If so, Jobber is the perfect fit for you! We're seeking Senior Software Engineers to join our dynamic Product Software Engineering team.At Jobber, we focus on building impactful solutions that empower small businesses to thrive. Our guiding principles include humility, support, and genuine care for our customers, which we embody in our daily work. We foster a collaborative culture where teams enjoy autonomy to make decisions and play a pivotal role in shaping the company's trajectory. We prioritize agile development practices, releasing frequently while addressing technical debt, and value direct customer feedback to enhance user experiences.We are committed to the professional growth of our employees, offering extensive onboarding resources, tutorials, hackathons, and mentorship opportunities. Our diverse teams provide the perfect environment for learning and innovation, while our empathetic leadership promotes a healthy work-life balance. Bring your passion and dedication to help us achieve your career aspirations.Potential Teams You Could Join:Subscription Infrastructure: Work on enhancing the billing experience for our customers, streamlining core billing systems, and driving monetization through innovative features like promotions and in-product marketing.Sign Up & Trial: Help small service businesses discover how Jobber can transform their operations, ensuring new users experience those pivotal “AHA!” moments that turn trials into subscriptions.Harbour Foundations: Build the internal framework for an AI-enhanced customer journey, creating systems that empower our teams with actionable insights into every AI-driven interaction for personalized support.Expansion: Focus on developing strategies that drive growth and scalability for our services.

At Metabase, we believe that data should be accessible to everyone, from budding startups to large enterprises. Our platform empowers users to derive insights effortlessly, making it a favorite among thousands. Discover why our community loves us.We are revolutionizing business intelligence by merging the sophistication of consumer applications with the robust functionalities required by enterprises. Our open-source framework is designed to help organizations effectively measure, analyze, and share their data, serving tens of thousands of users worldwide.Metabase was born out of the desire for intuitive and user-friendly business intelligence tools that break away from the rigidity of traditional software. We strive to provide faster, more straightforward methods for querying data, ensuring that insights are available to all roles within a company. Our platform is consistently utilized by diverse organizations, and we need your expertise to enhance our user interface. We are on the lookout for talented individuals with a strong sense of product design, exceptional frontend development skills, and solid software engineering principles to join our team and push the boundaries of innovation in our space.We are hiring for multiple Frontend Software Engineer positions.