Senior Software Engineer - Event Sourcing & Stream Processing

About Tenable:Tenable® is at the forefront of Exposure Management, empowering over 44,000 organizations globally to comprehend and mitigate cyber risks. Our dedicated team supports a diverse clientele, including 65% of the Fortune 500 and numerous government agencies. Join us on our exciting journey!Why Choose Tenable?Our employees are our greatest asset! We collaborate to create and innovate cutting-edge cybersecurity solutions while fostering a culture of inclusion, respect, and excellence. As a member of our #OneTenable team, you will work alongside passionate professionals and have access to the resources necessary to make a meaningful impact. Together, we achieve exceptional results!Important Note: Applicants must be authorized to work in the U.S. without sponsorship. We do not provide visa sponsorship at the time of hire or during employment, including but not limited to F1-OPT, F1-CPT, H-1B, TN, J-1, etc.Your Role:Tenable is looking for a Senior Software Engineer to enhance our VM Platform team. Your work will be pivotal in our Tenable One architecture, where you will manage vast amounts of asset data, process it to determine the “state of the world” for our clients, and ensure seamless integration with downstream search and reporting tools.We are tackling complex Big Data challenges, building and maintaining high-throughput, event-driven pipelines responsible for processing asset and vulnerability history. You will design systems that handle enormous scale, ensuring the accuracy and real-time availability of vulnerability data.To qualify for this position, you must meet one of the following criteria:Hybrid: Ability to commute to our Columbia, MD/Northern VA office.Hybrid: Ability to commute to our Boston, MA office.Remote: Currently reside in the San Francisco Bay Area, CA.Your Opportunity:Help shape the Future of Exposure Management: Contribute to the backend development of Tenable’s flagship Exposure Management (EM) platform, influencing the future of our EM offerings.

About Tenable:Tenable® is a leader in Exposure Management, empowering over 44,000 organizations worldwide to comprehend and mitigate cyber risk. Our dedicated global workforce supports 65% of the Fortune 500, 45% of the Global 2000, and various large government agencies. Join us on our mission to redefine cybersecurity!Why Work at Tenable?Our people are our greatest asset! We collaborate closely to develop innovative cybersecurity solutions for our clients while fostering a culture of inclusivity, respect, and excellence. As part of our #OneTenable team, you’ll work alongside some of the brightest and most passionate professionals in the field, equipped with the support and resources necessary to make a real impact. Together, we achieve extraordinary results!Note: Applicants must be authorized to work for any employer in the U.S. without sponsorship. We cannot provide sponsorship for work visas at any stage of employment.Your Role:Tenable is looking for a Staff Software Engineer to join our VM Platform team. This team plays a pivotal role in our Tenable One architecture, processing vast amounts of asset data to deliver real-time insights to our clients.You will focus on constructing and maintaining high-throughput, event-driven pipelines that handle the history of assets and vulnerabilities, ensuring data accuracy and availability in real-time. This role transcends basic CRUD operations; you will design systems capable of managing substantial scales.To qualify for this position, you must meet one of the following criteria:Hybrid: Ability to commute to our Columbia, MD/Northern VA office.Hybrid: Ability to commute to our Boston, MA office.Remote: Currently residing in the San Francisco Bay Area, CA.Your Opportunity:Contribute to the Future of Exposure Management: Participate in developing the backend of Tenable’s flagship Exposure Management (EM) platform.

Sentry seeks a Senior Software Engineer to strengthen its streaming platform in San Francisco, California. This role centers on building systems that can grow with increasing demand and deliver consistent performance for a broad user base. Key responsibilities Design and implement new features for the streaming platform Work closely with teams across engineering, product, and design to deliver reliable solutions Use software development skills to enhance the user experience Share technical insights and ideas to support ongoing platform improvements Location This position is based onsite in San Francisco, California.

Join Crusoe as a Senior Software Engineer in our Streaming division, where you'll be at the forefront of innovative streaming technology solutions. You will collaborate with cross-functional teams to design, develop, and implement high-performance streaming applications that enhance user experience.As a vital member of our engineering team, you will leverage your expertise in software development to contribute to cutting-edge projects that push the boundaries of streaming technology.

Join Stripe as a Staff Software Engineer in our Stream Compute team, where you will play a pivotal role in building scalable solutions that power the financial infrastructure of the internet. As a member of our innovative engineering team, you will leverage your expertise to design and implement robust software solutions that enhance the performance and reliability of our streaming data capabilities.

Our VisionAquabyte is dedicated to transforming the sustainability and efficiency of aquaculture, a daring and immensely fulfilling endeavor. By enhancing the productivity of fish farming, we aim to support the responsible production of low carbon protein and address one of the most significant contributors to climate change. As the fastest-growing food production sector globally, aquaculture is at a pivotal moment where technology can redefine our approach to ocean harvesting, ensuring its preservation for future generations.Our diverse and mission-oriented team is eager to collaborate with individuals who share our passion. If our vision resonates with you, we invite you to connect with us.Our ProductCurrently, we empower salmon farmers to gain insights into their fish populations, enabling them to make environmentally responsible choices. Utilizing custom underwater cameras, computer vision, and machine learning, we quantify fish weights, assess health conditions, and formulate optimal feeding strategies in real-time. Our product comprises three integral components: on-site hardware for image capture, cloud-based data processing pipelines, and an interactive web application. This creates a dynamic ecosystem with countless intriguing challenges across all layers of technology.At Aquabyte, we prioritize customer satisfaction above all. Our product development is driven by the demands of fish farmers, ensuring we delight our customers with every endeavor. We are committed to fostering a global, collaborative team environment.The RoleWe seek a Senior Backend Engineer to design and maintain the systems facilitating real-time video streaming, AI analytics, and secure remote control of industrial machinery. Your role will involve working on cloud and edge-connected systems that interact with physical devices, where reliability, security, and low-latency communication are paramount.

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

Discord is a vibrant platform utilized by over 200 million users each month for a multitude of reasons, with a significant focus on gaming. A staggering 90% of our users engage in gaming activities, collectively spending 1.5 billion hours playing thousands of unique titles on Discord every month. As we look to the future, Discord is poised to play a pivotal role in enhancing the gaming experience by fostering communication and camaraderie among players before, during, and after their gaming sessions.The Safety Processing team is at the forefront of developing systems that empower Discord to effectively detect, review, and act upon harmful content at scale. Our mission is to build robust infrastructure and decision-making systems that facilitate accurate, efficient, and fair content moderation across the platform. We're on the lookout for a Senior Software Engineer capable of managing intricate, multi-phase projects and delivering high-quality systems that safeguard millions of users on a daily basis.As a Senior Engineer within the Safety Processing team, you will assume full ownership of projects from the initial design phase through to post-launch monitoring and iterative improvements. You will tackle challenging issues that lie at the intersection of automation, large-scale distributed systems, and content safety. Your contributions will include the development of automated decision systems that enhance our review capacity tenfold, the creation of enforcement infrastructure that manages millions of decisions each day, and the architecture of systems that centralize and streamline safety signal processing. Collaboration with Trust & Safety operations, machine learning teams, policy experts, and product partners will be key to delivering solutions that enhance Discord's safety while upholding our commitment to an exceptional user experience. You will create products that users love while maintaining Discord's high quality standards, utilizing an 80/20 mindset and a user-focused approach. We value a growth-oriented mindset and encourage diving into new code and technologies to implement safety solutions that protect our user community.This role presents the opportunity to work on systems that have a direct impact on user safety, address innovative technical challenges in content moderation at scale, and help shape the future of how Discord ensures community safety.

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 Fastly, we empower individuals and organizations to strengthen their connections with the digital world. Our cutting-edge edge cloud platform provides businesses the ability to rapidly create secure and reliable digital experiences by processing, serving, and safeguarding applications close to their users — right at the edge of the Internet. Designed for the modern internet, our platform is highly programmable and supports agile software development. Fastly proudly serves an impressive roster of clients, including GitHub, Yelp, Paramount, and JetBlue.Join us in our mission to build a more trustworthy Internet.Posting Open Date: 3/19/26Anticipated Posting Close Date*: 5/18/26*Job posting may close early due to the volume of applicants.Your Role:Fastly is seeking a dedicated and skilled Senior Customer Solutions Engineer to serve as the main technical point of contact and trusted advisor for our clients, fostering long-term relationships built on proactive support and thorough assistance. This position entails extensive technical knowledge and a focus on client-oriented communication to manage relationships with some of our most vital customers. Internally, we refer to this role as a Senior Cloud Engineer.The Senior Customer Solutions Engineer will possess broad technical expertise, including cloud infrastructure, system architecture, and an advanced understanding of networking protocols (HTTP, TCP), complemented by scripting and software development skills.Key responsibilities include collaborating with the account management team to devise customer-specific strategies, nurturing technical relationships across essential stakeholders, and managing customer escalations. This role involves close collaboration with various teams at Fastly, leveraging technical expertise and communication skills to facilitate customer initiatives and growth, coordinate support, and effectively integrate with customer teams. The Senior Customer Solutions Engineer will also provide technical mentorship and guidance on deals within their sector.

About the Role: The Content Platforms Engineering team at Tubi TV is responsible for developing and scaling the foundational infrastructure that supports the entire content lifecycle—from partner onboarding through to video delivery. Our primary focus is on creating distributed systems that are not only reliable and high-performing but also cost-effective, facilitating smooth video ingestion, transcoding, and playback. You will become part of a collaborative team of engineers who share a passion for video streaming technologies, large-scale system design, and making a significant impact across Tubi’s content pipeline. This position is hybrid, requiring you to work from our San Francisco office three days a week.

About Us:At LangChain, we are on a mission to make intelligent agents commonplace. Our platform serves as the backbone for agent engineering in real-world applications, enabling developers to transform their prototypes into production-ready AI agents that organizations can depend on. Initially recognized for our widely adopted open-source tools, we have evolved to also provide a comprehensive platform for building, evaluating, deploying, and managing agents at scale.Today, our solutions including LangChain, LangGraph, LangSmith, and Agent Builder are utilized by teams delivering genuine AI products across both startups and large enterprises. Millions of developers rely on LangChain to empower AI teams at prominent companies such as Replit, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, and 35% of the Fortune 500.With $125 million raised in Series B funding from leading investors including IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we are in an exciting phase of product development, experiencing rapid growth where every team member can significantly influence our projects and collaborative work culture. At LangChain, your contributions can reshape how technology manifests in the real world.About the Role:We are seeking a dedicated core maintainer to join the LangChain team. This individual will play a crucial role in enhancing and maintaining the LangChain JavaScript package. Preference will be given to candidates who can work in person in San Francisco.Enhancing the core abstractions and runtime of the langchain and langgraph packagesImproving and expanding documentationResponding to user inquiries and resolving issues effectivelyUtilizing langchain to develop example applicationsSuccess Factors:Minimum of 3 years of experience in software engineering or applied machine learningStrong background in Software EngineeringExceptional written and verbal communication skills, capable of conveying technical concepts to both technical and non-technical audiencesAbility to thrive in a fast-paced environment and view unstructured settings as opportunities to define impactful workOwnership mindset; proficient at managing tasks independently and effectively

Join Oura as a Senior Sourcing Manager specializing in Battery technologies. In this pivotal role, you will drive sourcing strategies, enhance supplier relationships, and ensure our products meet the highest quality standards. You will collaborate with cross-functional teams to optimize supply chain efficiency and contribute to the development of cutting-edge battery solutions.

About the RoleTubi is not just known for its extensive library of on-demand content; it also excels in delivering live TV and event programming that unites audiences in real-time. Our free, ad-supported live channels offer linear TV experiences complemented by curated event coverage, allowing us to reach vast audiences. In 2025, Tubi made history by streaming Super Bowl LIX, achieving the title of the most streamed Super Bowl ever, with a peak audience of 15.5 million concurrent viewers and 24 million unique viewers throughout game-day programming, contributing to the record-breaking audience for this iconic event.We are currently looking for a Senior Product Manager to steer the vision, strategy, and execution of Tubi's live TV and events offerings. This highly visible role is critical for shaping the short, medium, and long-term strategies for our linear product and live event programming.Your ResponsibilitiesOwn the Live TV & Events Roadmap: Define product strategy, OKRs, and success metrics to enhance viewership, tune-in rates, and engagement across Tubi’s live channels and major events.Enhance the Live Viewing Experience: Lead improvements to Live Guides, Event Hubs, and real-time playback flows to increase visibility of upcoming programming and boost tune-in conversion.Optimize Event Discoverability: Implement technical and product enhancements that facilitate user engagement with live programming, leveraging metadata systems, AI/ML discovery features, notifications, and CTV integrations.Drive High-Intent User Activation: Craft engaging entry points and seamless user flows that transition users from browsing to live viewing while fostering long-term engagement on Tubi.Experiment and Iterate: Collaborate with Data Science to conduct A/B testing on live tune-in rates, concurrency behavior, session duration, and post-event re-engagement, scaling successful features across platforms.Ensure Event Readiness at Scale: Work together with Engineering, Platform, and Operations teams to meet reliability, latency, and performance requirements for major live events.Foster Cross-Functional Alignment: Collaborate closely with teams in Content, Marketing, Design, and Ad Sales to enhance product offerings and drive success.

Discord is a vibrant platform that connects over 200 million users monthly for a variety of activities, with a significant focus on gaming. With over 90% of our users engaging in gaming, they spend a staggering 1.5 billion hours playing thousands of unique games on Discord each month. Our mission is to enhance the gaming experience by facilitating seamless communication and interaction among players before, during, and after their gaming sessions.We are seeking an experienced Staff Software Engineer to join our dedicated Safety Processing team. This pivotal team is responsible for maintaining trust and safety on Discord by processing signals from user reports and automated systems to identify and eliminate harmful or illegal content. In this role, you will spearhead backend projects, provide architectural insight, and develop scalable systems that effectively protect our users. Your contributions will directly influence the safety of our platform, ensuring that Discord remains a welcoming environment for all. To discover more about our engineering initiatives, visit our engineering blog.

Company OverviewEcho Neurotechnologies is a pioneering startup in the Brain-Computer Interface (BCI) sector, committed to pushing the boundaries of innovation through sophisticated hardware engineering and artificial intelligence solutions. Our core mission is to provide groundbreaking technologies that empower individuals with disabilities, enhancing their autonomy and overall quality of life.Team CultureBecome part of a small, passionate team of skilled professionals dedicated to making a difference. In our early-stage environment, you will have the chance to influence significant decisions that will have a lasting impact. We prioritize continuous learning and development, encouraging cross-functional collaboration where your input is crucial to our collective success.Job ResponsibilitiesForge and nurture supplier partnerships for Echo throughout the product lifecycle, from initial design and development to commercial production.Work closely with R&D engineers, cross-functional teams, and suppliers during new product development to create essential medical devices, components, and materials based on the demands of our products and organization.Utilize processes to streamline New Product Development (NPD) initiatives encompassing quality assurance, cost management, delivery timelines, and risk mitigation with suppliers.Perform Make vs Buy analysis, supplier selection, develop sourcing strategies, negotiate contracts (including NDA, Development, and Supply), manage purchase orders, and maintain supplier relationships to ensure reliable supply and competitiveness.Oversee project management for sourcing deliverables, liaising with project managers, communicating with cross-functional groups and suppliers to monitor performance and address risks.Lead workshops with internal partners and suppliers to leverage DFx strategies and tools (such as manufacturability and supply chain considerations) alongside component plans to enhance part quality and reliability.Identify, reduce, and mitigate risks, improving timelines and fostering enduring partnerships crucial to overcoming business and technical challenges.Monitor supplied component quality, supply risks, material costs, and response/lead times for new products.Collaborate with suppliers to design launch plans, ensuring that materials, labor, and capacity are ready to meet demand.

Crusoe Technologies seeks a Senior Manager of Sourcing based in San Francisco, CA. This position leads sourcing initiatives and helps define procurement strategies for the company. Key responsibilities Design and execute sourcing strategies that balance cost savings with quality improvements Build and maintain strong relationships with suppliers to align with business objectives Work closely with teams throughout the organization to improve procurement processes Guide sourcing and procurement efforts to support company growth Role focus This role centers on driving effective sourcing practices and collaborating across departments to enhance procurement outcomes. Leadership in this position directly influences Crusoe Technologies' ability to meet its operational and strategic goals.

Waymo is at the forefront of autonomous driving technology, dedicated to becoming the world's most trusted driver. Originating from the Google Self-Driving Car Project in 2009, Waymo has relentlessly focused on developing the Waymo Driver—The World’s Most Experienced Driver™—to enhance mobility access and significantly reduce the number of lives lost to traffic incidents. The Waymo Driver powers our fully autonomous ride-hailing service and is adaptable for various vehicle platforms and applications. With over ten million rider-only trips and a remarkable track record of autonomously driving over 100 million miles on public roads, we continue to lead the way across 15+ states in the U.S.Your Responsibilities:Design, develop, test, and maintain C++ software systems, tools, and infrastructure to support real-world event and incident response.Build and enhance mission-critical tools and systems to enable Waymo to scale and expand into new markets.Collaborate effectively with Product, UX, and other engineering teams to develop systems and processes that adapt to evolving business needs.Deliver innovative solutions to challenges in a dynamic, fast-paced environment.

Join Mariana Minerals as a Senior Pyrometallurgical Process Engineer in our San Francisco headquarters. In this crucial role, you will leverage your expertise in pyrometallurgical processes to drive innovation and efficiency in our operations. Collaborate with a team of dedicated professionals to develop and implement cutting-edge solutions that enhance our mineral processing capabilities.

Join Our Team as a Senior Process EngineerAt Substrate, we are tackling one of the most crucial technological challenges facing the United States today. Positioned at the forefront of advanced manufacturing and innovative physics, our mission is to develop groundbreaking technologies that will revolutionize the semiconductor industry and fortify America’s technological leadership. We pride ourselves on our team of world-class scientists, engineers, and technical experts dedicated to crafting technology for the future.Job OverviewAs a Senior Process Engineer, you will play a pivotal role in conceptualizing and prototyping essential components of our platform through advanced process development and materials characterization. This hands-on position involves working in multiple cleanrooms and user facilities around the vibrant San Francisco Bay Area while also leading the efforts of fellow team members. You will oversee critical aspects of our fabrication process, engaging in both micro- and nanofabrication as well as characterizing the materials and structures you create. This role will encompass various nanofabrication techniques, such as lithography, wet and dry deposition, and etching.Additionally, you will contribute significantly to the establishment of Substrate’s internal research facilities. Your expertise will be instrumental in early-stage development and testing, which are vital to our ambitious mission of reshaping the semiconductor landscape for years to come.