JavaScript Engineer for Open Source Initiatives

Join Lakera: Pioneering AI SecurityAt Lakera, we are driven by a vision to shape the future of AI, ensuring it aligns with our expectations and needs. As we advance towards a world where AI agents enhance both business operations and personal lives, we are laying down the crucial security framework to support this transformation. We empower security teams and builders, enabling them to harness AI technologies and unlock the next generation of intelligent computing.Our collaborations span Fortune 500 companies, innovative startups, and foundational model providers, focusing on safeguarding them and their users from potential adversarial misalignments. Additionally, we are proud to be the creators of Gandalf, the leading AI security game globally.With offices in San Francisco and Zurich, we thrive in a fast-paced, intense environment where teamwork and individual accountability are paramount. We value transparency across all levels and are committed to continuously raising the bar in all our endeavors. By promoting diverse perspectives, we believe we achieve the best outcomes.Stay updated with Lakera:Register for Lakera GuardExperience Gandalf, LLM adventuresGet Lakera - ChatGPT Data Leak ProtectionJoin Momentum, our AI Security Community Connect with us on LinkedIn, Twitter & Instagram to discover more about our initiatives at Lakera!

Join us at LeverDemo-8, a pioneering company in talent acquisition software! As we navigate through the evolving landscape of recruitment, we are committed to building an innovative team dedicated to excellence. This position is part of our testing environment and serves as an example role. Please note that applications for this role will not be accepted.Lever is revolutionizing how companies like Netflix, Yelp, Cirque du Soleil, Shopify, and Spotify recruit and hire top talent. Founded a decade ago, we’ve established ourselves as leaders in the hiring software industry. Our commitment to innovation and excellence has earned us recognition as the top workplace in San Francisco and among the best in the entire United States. Our team, the 'Leveroos', is our greatest asset, and we continue to invest in our people-first culture.

At Prime Intellect, we are pioneering the development of an open superintelligence framework, encompassing everything from cutting-edge agentic models to the infrastructure that empowers individuals to create, train, and deploy these advanced systems. Our innovative platform consolidates global computational resources into a unified control plane and integrates a comprehensive Reinforcement Learning (RL) post-training suite: including environments, secure sandboxes, verifiable evaluations, and our asynchronous RL trainer. We provide researchers, startups, and enterprises with the tools necessary to execute end-to-end reinforcement learning at the forefront of technology, seamlessly adapting models to real-world applications, workflows, and deployment scenarios.We are eager to connect with individuals who have successfully crafted intricate technical systems, made significant contributions to open-source initiatives, or who possess expertise across diverse domains. Whether your specialization lies in AI, distributed computing, cryptography, systems programming, or an unconventional area, your ability to learn rapidly, think critically, and execute effectively is what we value most.Recently, we secured $15 million in funding (bringing our total to $20 million), spearheaded by Founders Fund, with contributions from Menlo Ventures and notable angels such as Andrej Karpathy (Eureka AI, Tesla, OpenAI), Tri Dao (Chief Scientific Officer of Together AI), Dylan Patel (SemiAnalysis), Clem Delangue (Huggingface), Emad Mostaque (Stability AI), among others.We invite you to share your enthusiasm for Prime Intellect, highlight an impressive project you’ve undertaken, and describe how you envision advancing open and decentralized AGI.

About Multiply LabsMultiply Labs is an innovative startup located in San Francisco, California, backed by leading investors in the technology and life sciences sectors, including Casdin Capital, Lux Capital, and Y Combinator. Our vision is to create the most advanced robotics technology in the world, utilizing it to ensure that cutting-edge life-saving therapies are accessible to everyone.We are transforming the production of cell therapies by designing sophisticated robotic systems that automate the manufacturing process. Our robots enable biopharma companies to scale the production of these essential treatments without major alterations to their existing workflows, thereby minimizing regulatory hurdles and risks. Traditional methods are often lengthy and expensive, costing upwards of $1 million per patient; by leveraging robotics, we aim to make these life-altering therapies more affordable and widely available.To discover more about us and see our robots in action, please visit www.multiplylabs.com and follow us on LinkedIn.Join Us: Open Applications at Multiply LabsAt Multiply Labs, we are not merely constructing robots; we are pioneering the future of precision medicine to guarantee that every patient can access essential therapies. Achieving this ambitious goal demands a workforce that is equally visionary, whether you are a roboticist, engineer, or bioprocess specialist.We recognize that exceptional talent does not always align with available job titles. If you possess a deep passion for the convergence of robotics and biopharma but do not find a position that perfectly fits your unique skill set, we still welcome your application.The 'Why': Cultivating the Future Talent PipelineWe highly appreciate the proactive interest from individuals who resonate with our mission of creating the world’s finest robots and making advanced therapies widely available. Building a strong talent community is vital for us to quickly advance the robotic future of bio-manufacturing.The 'How': Direct Connection with Our TeamThis General Application serves as your direct link to convey your deep interest in joining our team. It allows our recruiting team to capture your unique skills and enthusiasm for current and future opportunities that may not yet be publicly advertised.What to Expect: Our Follow-Up ProcessGiven the high volume of interest we receive, you may not receive an immediate response; however, we assure you that your application will be reviewed carefully.

About LanceDBLanceDB is an innovative, developer-centric, open-source database designed for multimodal AI applications. We provide robust solutions ranging from hyper-scalable vector search capabilities to advanced retrieval for Retrieval-Augmented Generation (RAG). LanceDB is your ideal partner for creating AI applications, enabling seamless interaction with large-scale AI datasets and powering some of the most cutting-edge applications across various industries.About the RoleWe are seeking a Senior Open Source Engineer to enhance the presence of LanceDB within the extensive data infrastructure ecosystem. You will engage in projects that sit at the convergence of high-performance computing, big data, and open-source systems. Your contributions will drive integrations, optimize distributed operations, and support initiatives within the Apache and AI communities.Key ResponsibilitiesLead open-source community initiatives to integrate the Lance format with systems such as Spark, Hive Metastore, Presto, Trino, and Ray.Design and sustain efficient distributed operations for Lance datasets.Develop optimized indices to facilitate predicate pushdown and enhance query performance in Spark, Ray, or Trino.Engage in the development of table formats, data encodings, and various components of the Lance format using Rust.Manage and enhance internal data processing infrastructure.Advocate for the Lance format in open-source forums and at major Big Data conferences.RequirementsOver 10 years of experience in developing high-performance databases, big data systems, or large-scale data services.In-depth knowledge of the internal workings of open-source Big Data or AI training systems such as Hadoop, Spark, Flink, Ray, Iceberg, Delta Lake, Hudi, ClickHouse, Trino, Presto, PyTorch, or JAX.Extensive experience with high-performance computing using Java or Scala.Familiarity with Rust is preferred, or a strong willingness to learn.Demonstrated ability to work efficiently, independently, and collaboratively within a high-caliber team environment.Preferred QualificationsActive contributor, committer, or PMC member in Apache or other significant open-source projects.Experience with Java, Rust, C++, Apache Arrow, DataFusion, Parquet, Iceberg, or Delta Lake is a plus.

At Network Right, we are dedicated to reshaping the IT landscape by prioritizing human-centric and innovative solutions tailored to the unique needs of our clients. Our mission is to revolutionize the IT service industry by bridging the gap between technology and people, ensuring that businesses thrive with customized IT support. We strive to enhance employee experiences through technology, making their work lives more manageable and efficient.Are you interested in joining our team but don't see the perfect role listed? We encourage you to send us an open application! Share your aspirations, past projects, and any relevant experiences that highlight your skills and interests.

About Us:At LangChain, we are on a mission to revolutionize the world of intelligent agents. Our innovative platform empowers developers to transition from initial prototypes to production-ready AI agents that can be trusted by their teams. Originating from widely embraced open-source tools, we have since expanded to offer a comprehensive suite for building, assessing, deploying, and managing AI agents at scale.Today, our tools—LangChain, LangGraph, LangSmith, and Agent Builder—are utilized by teams delivering genuine AI solutions across both startups and major enterprises. Millions of developers rely on LangChain to enhance AI capabilities for companies such as Replit, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, and 35% of the Fortune 500.With a successful $125M Series B funding from esteemed investors including IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we are in an exciting phase of product development and growth. Every team member has a significant opportunity to influence the technology we create and how we collaborate. At LangChain, your contributions will directly shape the future of AI.About the Role:On-site 5 days/week in San Francisco, CA or Boston, MA (San Francisco preferred)We are seeking a dedicated core maintainer to join our LangChain team. This individual will be instrumental in enhancing and maintaining the LangChain Python package.Enhancing the core abstractions and runtime of the langchain and langgraph packagesImproving our documentationProviding answers to user inquiries and resolving issuesUtilizing langchain to develop example applicationsSuccess Factors for This Role:5+ years of experience in software engineering or applied machine learningExcellent written and verbal communication skills, capable of conveying technical concepts clearly to both technical and non-technical stakeholdersAbility to thrive in a fast-paced environment, viewing unstructured situations as opportunities to identify impactful work and define the company’s future successOwnership mentality, demonstrating a proactive approach to work

-- Are you seeking an opportunity to join our innovative team but can’t find the perfect position? Submit your application here! --At dryft, we specialize in creating intelligent systems that streamline complex human decisions in manufacturing operations.Our small, highly skilled team boasts diverse backgrounds, with a shared passion for the physical world encompassing cars, machines, and planes. Our team includes alumni from Stanford, Berkeley, CDTM, TUM, winners of Stanford TreeHacks, and recipients of prestigious Fulbright & Haniel scholarships, along with innovators who have developed everything from robots and race cars to widely-used software.We are proudly supported by industry leaders and founders from companies such as Amazon, Facebook, Stripe, Applied Intuition, and others; alongside investors like General Catalyst and Neo, as well as board members from major global industrial firms.Currently, we are already saving our clients millions, yet this is merely the beginning. While ERPs dominated the physical world for the past fifty years, dryft is leading the way into the future.

Join Stripe's innovative team as a Communications Specialist! This open application invites passionate individuals to contribute to our mission of increasing the GDP of the internet. Help us communicate effectively with our users and stakeholders, shaping the narrative around our products and services.At Stripe, we value creativity and collaboration, and we're looking for communicators who can craft compelling stories and engage audiences across various platforms. If you're excited about the intersection of technology and communication, we want to hear from you!

Join Arena Intelligence as a Machine Learning ScientistAt Arena Intelligence, we are revolutionizing how AI models are evaluated in real-world scenarios. Founded by innovative researchers from UC Berkeley’s SkyLab, our mission is to push the boundaries of AI evaluation and ensure its practical application.With millions of users engaging with our platform each month, we prioritize community feedback to develop transparent, rigorous, and human-centered model evaluations. Our leaderboards serve as the benchmark for AI performance, gaining the trust of leading enterprises and AI labs to understand the reliability, alignment, and impact of AI systems.Our diverse team comprises experts from esteemed institutions such as UC Berkeley, Google, Stanford, DeepMind, and Discord. We foster a culture that values truth, agility, craftsmanship, curiosity, and impact over hierarchy. We are committed to creating an environment where talented individuals from all backgrounds can excel in their work.Role OverviewWe are seeking a passionate Machine Learning Scientist to spearhead our open-source research initiatives, including the development of open datasets and code releases. You will be instrumental in advancing how AI models are evaluated and understood globally.In this position, you will operationalize our dedication to openness by curating impactful datasets, developing innovative methodologies, and establishing reproducible benchmarks. Your contributions will enhance our public leaderboards, empower community tools, and promote transparency in AI evaluation on a global scale.This interdisciplinary role involves collaboration with engineers, product teams, marketing, and the broader research community to refine model comparisons, analyze preference data, and explore dimensions like style, reasoning, and robustness. You will also work closely with our go-to-market teams to advocate for our open research initiatives, strengthen research partnerships, and encourage community engagement.If you are excited by complex challenges, rigorous evaluation processes, and scientific outreach, we invite you to apply!

We invite you to connect with us! If you don't find a specific position that matches your skills or experience, please feel free to submit your resume along with a brief introduction. We are always on the lookout for talented individuals to join our team!

Company OverviewAt Swiftly, we are dedicated to revolutionizing urban transportation. As the foremost transit data platform, we empower agencies to share real-time passenger information, optimize daily operations, and enhance service performance. Currently, over 200 transit agencies across 12 countries—including LA Metro, MARTA, SEPTA, and MBTA—trust Swiftly to boost on-time performance by up to 40% and improve passenger information accuracy by as much as 50%. This commitment to excellence results in enhanced service reliability, increased ridership, and more efficient transit management.While our headquarters are situated in San Francisco, CA, we welcome applications from candidates located throughout the U.S., as well as Ontario and British Columbia, Canada. Please note that we are currently unable to provide Visa sponsorship.Engineering at SwiftlyOur engineering approach transcends simple code writing; it focuses on empowering product teams to collaboratively develop innovative features and bring them to fruition. Each team strives to balance incremental enhancements, prototype development for new ideas, and the creation of scalable software that adheres to industry best practices. Our mission is to make a positive difference in the lives of transit riders, and we prioritize humility and intentionality in our technical decision-making to best serve our customers’ needs.[Your Job Title Here]If you don’t see your specific job title listed, don’t worry! Swiftly is rapidly expanding, and we consistently have new opportunities available. We’re eager to learn about your background and why you believe you would be a great addition to the Swiftly team. Even if we don’t have an immediate position, we may have one opening up soon!Swiftly operates in San Francisco, CA, and we are hiring locally and remotely at this time. #LI-Remote

Join Lakera AI as a Marketing Operations Manager in the dynamic field of AI Security. In this pivotal role, you will oversee the marketing operations that drive our innovative security solutions. Collaborate with cross-functional teams to ensure our marketing strategies are aligned with business objectives and deliver measurable results.

Join our dynamic team at Collabera, where we foster innovation and collaboration. We are seeking a talented individual for the ABC position. As part of our organization, you will have the opportunity to work on exciting projects and contribute to the success of our clients.

Join Our Innovative Team at Rezo TherapeuticsAt Rezo Therapeutics, we are revolutionizing the biopharmaceutical landscape. Our mission is to significantly enhance the success rates of drug development through the establishment of a comprehensive, disease-agnostic network biology platform. This groundbreaking approach aims to transform our understanding of human diseases and the efficacy of treatments. Our unique integrated methodology combines expertise in genetics, proteomics, structural biology, and artificial intelligence to unveil profound biological insights and pioneering therapeutic solutions. Situated in the lively Mission Bay area of San Francisco, Rezo is ideally located near UCSF, a wealth of urban amenities, and ample outdoor recreational options. We believe that our mission's success is intertwined with the talent and dedication of our team. As such, we are committed to cultivating a workplace that champions collaboration, respect, and diversity, where team contributions are celebrated alongside individual accomplishments. If you are enthusiastic about collaborative science and are eager to dismantle barriers in drug development, we invite you to apply!If you do not find a specific job listing that aligns with your unique qualifications, we encourage you to submit your application here as we are always on the lookout for exceptional individuals across various disciplines.

Join our dynamic team at Sonsoft Inc. as a Blue Prism Developer! We are seeking passionate individuals who are eager to work in a fast-paced environment and contribute to innovative solutions. This full-time role offers an exciting opportunity to work with cutting-edge technologies while collaborating with a talented group of professionals.

Are you passionate about technology and eager to launch your career in software development? AG Technologies is seeking enthusiastic individuals for Java and Networking positions. As part of our dynamic team, you will work with cutting-edge technologies and contribute to innovative projects that define the future of software solutions.

Join our innovative team as a Baker, where you can bring your passion for baking to the next level while enjoying the flexibility of remote work. In this role, you will be responsible for creating delicious baked goods that delight our customers and meet our high standards for quality.Please note: This is a testing job within Lever's environment intended for demonstration purposes only. We kindly ask that you do not apply for this position.Founded a decade ago, Lever is dedicated to solving the challenges of recruiting and hiring top talent. Our next-generation hiring software is trusted by industry leaders such as Netflix, Yelp, Cirque du Soleil, Shopify, and Spotify to enhance their hiring processes. We take pride in our people-first culture and are recognized as the #1 workplace in San Francisco and a top employer across the U.S. Our team, known as “Leveroos,” is our most valuable asset, and we continue to invest in their growth and success.

We are seeking a skilled Appian Architect to join our dynamic team on a contract basis. As an Appian Architect, you will play a pivotal role in designing and implementing Appian solutions that meet our clients' needs. Your expertise in Appian development, integration, and deployment will contribute to the success of various projects.