Senior Fullstack Software Engineer

Join Hadrian — Pioneering the Future of ManufacturingAt Hadrian, we are revolutionizing aerospace and defense manufacturing with our autonomous factories, enabling companies to produce rockets, satellites, jets, and ships up to 10 times faster and at half the cost. By integrating cutting-edge software, robotics, and comprehensive manufacturing processes, we are redefining the landscape of American production.Recently, we secured a $260 million Series C funding to further our mission. Our new state-of-the-art factory in Mesa, Arizona, spans 270,000 square feet and will create 350 jobs immediately. With an expanding headquarters and the launch of Hadrian Maritime for naval production, along with our innovative Factory-as-a-Service model delivering complete systems, we are poised for significant growth.Collaborating with startups, Tier 1 and Tier 2 suppliers, and major defense contractors, we aim to scale production, minimize costs, and expedite delivery for mission-critical programs. Backed by top-tier investors including Lux Capital, Founders Fund, and Andreessen Horowitz, our rapidly growing team shares a commitment to reindustrializing American manufacturing for the 21st century and beyond.Your RoleAs a Fullstack Software Engineer, you will have the opportunity to work across multiple internal products and teams:Flow — Our FactoryOS, a core platform featuring applications that model, manage, and automate a highly intricate network of factories.Copilot — A suite of manufacturing automation tools that enhance critical factory processes such as quoting, CAM programming, and CMM programming.Factory Automation — Focused on developing robotic cells and the software that powers them.We offer a diverse array of applications for those eager to innovate in manufacturing software.Note: Experience in aerospace, defense, or manufacturing is not a prerequisite for success in this role.Your ResponsibilitiesDesign, architect, implement, and deploy vital applications that drive revenue and create a meaningful impact.Lead a product vertical with the potential to build and mentor a team as the role evolves.Engage in cross-functional collaboration to refine and enhance our software products.

Join us in creating a safer world, one incident at a time.At Ambient.ai, we are pioneering a cutting-edge, AI-powered physical security platform that empowers leading enterprises to mitigate risks, enhance operational efficiency, and derive invaluable insights. Our technology is trusted by seven of the top ten U.S. tech giants and numerous Fortune 500 companies to modernize their security frameworks.Our innovative platform leverages advanced artificial intelligence and computer vision to integrate seamlessly with existing camera and sensor systems, providing real-time monitoring and proactive threat detection. By drastically reducing false alarms by over 95%, Ambient.ai enables security teams to concentrate on genuine threats, effectively preventing incidents before they happen.Founded in 2017 with the support of industry leaders like Andreessen Horowitz, Y Combinator, and Allegion Ventures, Ambient.ai is a Series B company on a mission to ensure that every security incident is preventable.Interested in learning more? Connect with us on LinkedIn and YouTubeAbout the Role:We are on the lookout for a skilled Full Stack Engineer to contribute to the development and scaling of the essential systems that drive Ambient.ai’s real-time AI security platform. In this dynamic role, you will engage with software that processes and interprets large volumes of video and event data instantly, turning raw signals into actionable intelligence for some of the world's largest enterprises.You will regularly tackle technically challenging problems in a fast-paced, collaborative atmosphere and witness your contributions deployed in mission-critical environments.Your Responsibilities:Design and implement REST and GraphQL endpointsDevelop highly available, latency-sensitive, fault-tolerant microservicesCreate core infrastructure for handling significant volumes of video streaming dataEnhance the performance, reliability, and scalability of all backend servicesTake ownership of small to medium platform features, overseeing them from conception to deploymentCollaborate as a vital member of the platform team, responsible for one or more services/product featuresExpect to be challenged and continuously develop your skills.

About ClarionAt Clarion, we're transforming communication in healthcare through cutting-edge AI technology.Currently, clinics are missing 30–40% of patient calls, while their staff faces overwhelming administrative burdens. We envision a future where AI agents manage workflows like scheduling, billing, prescription refills, and follow-ups, allowing healthcare teams to prioritize patient care.We are developing the essential communication framework that modern healthcare demands. Our AI agents not only respond to calls—they complete entire workflows, ensuring that patients are always heard. To date, we've facilitated hundreds of thousands of patient interactions across various virtual care providers, healthcare systems, and a $5B health insurance company.Founded by a physician with training from Stanford and Harvard (part of the founding team at Two Chairs and Ophelia) and an ex-Amazon Alexa engineer who led AI/ML initiatives at Salesforce, we have secured $5.4M in funding from notable investors including Accel, Y Combinator, Sequoia (Scout), and prominent healthcare entrepreneurs. Our team operates in-person in New York, moving swiftly to tackle one of healthcare's most pressing challenges.Why This Role Is UniqueOwnership of high-impact projects: You'll be responsible for significant features and systems that are actively used in real healthcare settings.Early traction and strong signal: With numerous paying customers and increasing revenue, you'll have the opportunity to influence critical product decisions.Learn from industry leaders: Collaborate closely with founders and experienced engineers who work at the nexus of healthcare, AI, and real-time systems.Your ResponsibilitiesDevelop and maintain full-stack features that drive AI-enhanced healthcare communication.Integrate with EHRs, legacy healthcare systems, and real-time voice infrastructure.Work collaboratively with product, design, and senior engineers to turn customer feedback into deliverable software.Enhance reliability, performance, and scalability across active systems.Engage in technical discussions, code reviews, and contribute to the evolution of engineering best practices.Technical Challenges Awaiting YouAI-driven workflows: Support and expand LLM-based systems utilized in real-time healthcare interactions.Real-time systems: Contribute to low-latency services that provide seamless healthcare experiences.

About GreenboardAt Greenboard, we are pioneering the future of financial compliance. Our unified, AI-driven compliance operating system serves registered investment advisors (RIAs), fintechs, private funds, hedge funds, and beyond, replacing the disjointed array of legacy tools and automating processes beyond previous capabilities. By centralizing data and streamlining workflows, Greenboard empowers firms to mitigate regulatory risks, simplify their technology infrastructure, modernize compliance operations, and achieve cost savings.Our founding team consists of engineers who have successfully scaled products at industry giants such as Amazon and Google, as well as at several unicorn startups. Supported by esteemed investors including Y Combinator, General Catalyst, and Base10, we have raised over $20 million to date. Renowned financial institutions already trust Greenboard, and our growth trajectory is rapidly accelerating.About the Role:As a pivotal member of our engineering team, you will tackle complex technical challenges ranging from building AI agents for insider trading detection to scaling messaging archiving systems capable of processing tens of millions of messages daily. You will collaborate with a team of world-class engineers, making a significant impact on our innovative projects.This is a full-time, on-site Fullstack Software Engineer position based in New York City.Who You Are:You thrive in fast-paced environments and love to build innovative solutions.You seek deep ownership of the products you develop.You are passionate about understanding and serving the customers you build for.You possess excellent communication skills.You value teamwork and collaboration.You are based in New York City.Qualifications:3-5 years of industry experience.Proficient in Node.js and Python.Experience architecting secure, scalable systems on AWS.Experience in developing scalable data infrastructure.Knowledge of AI and machine learning algorithms.Ability to work effectively in a fast-paced startup environment.Experience in the financial industry is a plus, but not mandatory.Benefits:401(k) plan with 5% company match.Comprehensive medical, dental, and vision insurance.15 days of paid time off plus 11 company holidays and flexible sick leave.

Join Roblox as a Senior Fullstack Software Engineer in our Connections team, where you will have the opportunity to innovate and enhance user experiences on one of the world's largest social platforms for play. You will be responsible for developing robust front-end and back-end solutions that engage millions of users globally. Your role will involve collaborating with cross-functional teams to design, implement, and maintain high-quality software solutions.

About Waterfall:At Waterfall, we are pioneering a revolutionary trading protocol designed for rare NFTs and collectible digital art, featuring live on-chain pricing. Our mission is to enhance the liquidity and composability of NFTs by creating innovative infrastructure and auction mechanisms. We have conceptualized a unique trading system allowing users to trade shards to forecast NFT prices, enabling rapid price discovery for any listed asset.Supported by Electric Capital and Pantera Capital, our dynamic and agile team is committed to fostering an inclusive culture. We aim not only to make a significant impact in the NFT space but also to ensure that Waterfall is the ideal workplace for your future aspirations. To stay informed and connected, be sure to follow our socials and explore our website!

Jobgether is looking for a Lead Software Engineer with fullstack expertise to help shape and deliver software products. This position involves both hands-on technical work and team leadership within a collaborative environment. Role overview The Lead Software Engineer will design, build, test, and deploy scalable applications. The role also includes working with teams across different functions to improve user experience and support the company’s goals. Key responsibilities Design and implement software solutions across the stack Write, review, and maintain code for reliability and scalability Test and deploy applications to ensure quality and performance Mentor junior developers and support their growth Promote best practices in software development within the team Collaboration This role works closely with cross-functional teams to enhance product features and deliver a strong user experience.

About FormalAt Formal, we are revolutionizing data security with our cutting-edge platform designed to empower teams to effortlessly understand and manage their data.We are developing an advanced protocol-aware reverse-proxy for data stores and APIs that enables organizations to gain real-time insights into their data. This innovative approach allows teams to monitor how sensitive data is stored, accessed, and utilized, thereby enforcing strict least privilege policies through techniques such as data masking, filtering, and anonymization.Our solutions have earned the trust of industry leaders like Ramp, Gusto, and Notion, who rely on us for data security, compliance, data quality management, and infrastructure access.Backed by top-tier venture capital firms, including Thrive Capital and Y Combinator, we also enjoy the support of angel investors who are executives and founders from renowned companies like Datadog, Clickhouse, Plaid, and Vanta.About the RoleFormal is committed to assembling an exceptional engineering team, and we seek passionate individuals who are eager to make a significant impact on our product and company growth.The ideal candidate possesses a profound knowledge of building scalable systems, a strong sense of ownership, and thrives on overseeing projects from their inception to full-scale production.Our current technology stack includes Typescript, NextJS, Shadcn, Vercel, and Golang.Your ResponsibilitiesDrive continuous improvements in the performance and reliability of our frontend application through code optimization and enhancement identification.Elevate existing features by integrating user feedback and executing enhancements to usability and design.Assume ownership of the frontend architecture, ensuring it is scalable, maintainable, and aligned with industry best practices.Lead initiatives that you believe will significantly impact Formal's success.Key QualificationsDemonstrated experience in software development for data-intensive platforms.Strong proficiency in modern frameworks (e.g., React, Vue.js) and backend languages (we utilize Go). Familiarity with streaming data processing frameworks like Apache Kafka and Google Pub/Sub.Experience with essential infrastructure components such as Kubernetes.

Join Pinterest as a Senior Fullstack Software Engineer and be a key player in building and enhancing our platform. You will work on both the front-end and back-end of our applications, helping to create seamless user experiences that inspire creativity. This role requires a passion for technology and a strong understanding of software engineering principles.

jobgether is hiring a Senior Fullstack Software Engineer based in the US. This position centers on designing, building, and maintaining software that drives the jobgether platform. Role overview This engineer will contribute to both front-end and back-end development, ensuring new features and updates meet the needs of users. Collaboration with product, design, and other engineering teams is a regular part of the work. What you will do Design and implement software solutions for the jobgether platform Maintain and improve existing code to ensure reliability and scalability Work closely with colleagues across functions to deliver user-focused products Requirements Experience in fullstack software engineering Ability to collaborate effectively with cross-functional teams Based in the US

We require individuals to work onsite in either our Denver (80206), Mountain View (94041), or New York (10018) office four days a week.About LG Ad SolutionsLG Ad Solutions is a premier global innovator in connected TV (CTV) and cross-screen advertising. We are dedicated to delivering cutting-edge advertising solutions that seamlessly integrate into the ever-evolving digital media landscape.Join Our Team:We are on the lookout for a skilled and driven Senior Software Engineer I (Full Stack) to become part of our Demand Side Platform (DSP) team. Our DSP platform empowers advertisers and agencies to programmatically acquire and manage digital advertising inventory across various ad exchanges and supply sources.The DSP team operates at an extraordinary scale, processing more than 1.5 billion ad requests every day. In this position, you will play a crucial role in developing intelligent systems that make instantaneous decisions regarding ad delivery—identifying the most suitable ad to present to each user at precisely the right moment and price, in the most effective format. Your contributions will directly support the real-time decision-making engine connecting premium advertisers with their target audiences across CTV and digital platforms.You will engage in both frontend and backend development, creating and maintaining the web applications and services that drive our advertising platform. Your responsibilities will include developing user interfaces, APIs, and backend services, collaborating with cross-functional teams, and contributing throughout the development lifecycle. If you are passionate about crafting efficient, scalable, and user-centric applications in the adtech sector, we want to hear from you!

P-160 About Us At Databricks, we are dedicated to empowering data teams to tackle some of the most challenging problems in the world — from transforming the next mode of transportation into a reality to expediting the development of medical innovations. We achieve this by developing and operating the leading Data Intelligence Platform, enabling our customers to leverage profound data insights that enhance their operations. Founded by engineers with a customer-centric approach, we eagerly embrace every opportunity to confront technical challenges, whether it involves designing next-generation UI/UX interfaces for data interaction or scaling our services and infrastructure across millions of virtual machines. Our journey is just beginning. As a Senior Full Stack Software Engineer, you will collaborate with your team and product management to simplify data insights for our users. We seek engineers who are customer-focused and capable of overseeing the entire product lifecycle, extending beyond mere technical execution. You will lay the groundwork for creating robust, scalable, and delightful products. Below are examples of experiences you will design for our customers, facilitating the complete project lifecycle from data loading and results visualization to statistical model creation and production deployment: User-friendly workflows for creating, configuring, and managing large-scale compute clusters, networks, and data sources. Develop, deploy, test, and upgrade intricate data pipelines, featuring powerful visual data graphs. Streamlined onboarding and management for all organizational members to adopt a data-driven approach. Exceptional SQL-centric data exploration and dashboarding experience on Databricks. An interactive environment for collaborative data projects at scale, with a straightforward path to production.

Join Mercor: Pioneering AI and Labor Market IntegrationAt Mercor, we operate at the forefront of labor markets and artificial intelligence (AI) research. Collaborating with esteemed AI laboratories and businesses, we deliver the invaluable human intelligence needed for AI evolution.Our extensive network of talent trains cutting-edge AI models, similar to the way educators guide students—by imparting insights, experience, and context that coding alone cannot convey. Currently, over 30,000 experts in our network collectively generate more than $2 million daily.Mercor is pioneering a new realm of work where expertise accelerates AI progress. To realize this vision, we seek an ambitious, dynamic, and dedicated team. You’ll collaborate with researchers, operators, and AI enterprises that are redefining societal systems.As a profitable Series C company valued at $10 billion, we maintain a five-day in-person work schedule at our new San Francisco headquarters.Your RoleWe are on the lookout for a product-focused Fullstack Software Engineer with robust technical expertise and a keen sense for product design. This position is perfect for individuals who relish taking ownership of user-facing features from conception to deployment, while possessing a deep understanding of the business and market dynamics that underpin their creations.In this role, you will enhance core marketplace interfaces that influence how engineers discover Mercor, apply for opportunities, complete assessments, and ultimately earn income. Achieving success here requires sound judgment, comfort with ambiguity, and the knack for delivering high-quality experiences swiftly without unnecessary complexity.This is not a limited backend or frontend role; your responsibilities will span:Frontend: React / Next.js, user journeys, UX nuances, performance, and refinement.Backend: Python and Go services, APIs, data structures, and integrations.Data: MongoDB and SQL, metrics, funnel analysis, and operational integrity.By the end of the process, you will be matched with a team where you can make the greatest impact in one of the following areas:Talent Platform Side – Developing next-gen tools that automate end-to-end recruitment, intelligently connect candidates to roles, and facilitate global hiring with seamless contracts and payments.Applied AI/Human Data Side – Collaborating with top-tier AI researchers from leading labs like OpenAI, Anthropic, and Google to create post-training datasets that enhance foundational model capabilities.

Join Read AI:At Read AI, we are transforming teamwork by infusing intelligence into every conversation. Our innovative platform enhances productivity across meetings, messages, and emails, enabling teams to work more efficiently and with greater concentration. We integrate seamlessly with leading tools like Zoom, Microsoft Teams, Google Meet, Slack, and others, ensuring teams remain synchronized, whether in the same location or separated by time zones.With a solid backing of $81 million from prestigious investors including Smash Capital, Madrona, and Goodwater Capital, Read AI is on an exciting growth trajectory. If you are passionate about shaping the future of AI-driven collaboration and eager to make a significant impact at a rapidly evolving startup, we want to hear from you!Your Role:We are looking for a Fullstack Software Engineer to join our dynamic team at Read AI. In this position, you will design, build, and maintain scalable web and desktop applications, handling both frontend and backend systems. You will work closely with product managers, designers, and fellow engineers to create top-notch user experiences and robust backend services that power our AI-based platform.

About UsAt Vesta, we are on a mission to revolutionize the homeownership experience by modernizing the tools and technology that empower financial security and wealth building. The traditional methods of mortgage lending are outdated, often relying on manual processes and cumbersome documentation. We aim to change that.Founded with the vision to reinvent the mortgage Loan Origination System (LOS), Vesta is committed to creating a fully automated lending process. Our AI-enhanced platform is at the forefront of this transformation, serving as the core engine that redefines how loans are processed.Our TeamOur founding team brings extensive experience from their time at Blend, where they developed modern cloud solutions for banks. With Vesta, they are leading a change in the mortgage sector by offering a flexible, open, and automated origination experience that benefits both financial institutions and their clients.We have successfully raised $55 million from esteemed investors like Andreessen Horowitz, Bain Capital Ventures, Conversion Capital, Zigg Capital, and Index Ventures.At Vesta, we believe our team is our greatest asset. We take pride in fostering a culture that values humility, empathy, self-awareness, and proactive action. If you are passionate about building the future of finance and eager to join a dynamic team, we want to hear from you!

About ClarionAt Clarion, we are revolutionizing communication in healthcare through the power of AI.Currently, clinics are missing 30–40% of patient calls and their staff is burdened with administrative tasks. We envision a future where AI agents manage these workflows, including scheduling, billing, prescription refills, and follow-ups, allowing healthcare professionals to dedicate more time to patient care.We are developing the essential communication infrastructure that modern healthcare needs. Our AI agents do more than just answer calls—they manage workflows from start to finish, ensuring that every patient is heard. To date, we have successfully handled hundreds of thousands of patient interactions across virtual care companies, health systems, and a $5 billion health insurance provider.Founded by a physician trained at Stanford and Harvard, alongside a former Amazon Alexa engineer who led AI/ML teams at Salesforce, Clarion has raised $5.4 million from prominent investors including Accel, Y Combinator, and Sequoia. Our in-person team in New York is rapidly advancing to tackle one of the most pressing challenges in healthcare.

About EventualAt Eventual, we recognize that every revolutionary AI application, whether it’s foundational models or autonomous vehicles, depends on the ability to process vast amounts of images, videos, and intricate data. Unfortunately, current data platforms like Databricks and Snowflake are optimized for spreadsheet-like analytics and not for the petabytes of multimodal data essential for AI. This leads to teams squandering months on fragile infrastructure instead of focusing on research and product development.Founded in 2022, our mission is to transform the way data is queried—whether it’s images, video, audio, or text—making it as straightforward as working with tables, while ensuring scalability for production workloads. Our open-source engine, Daft, is meticulously engineered for real-world AI systems, coordinating with external APIs, managing GPU clusters, and effectively handling failures that traditional engines cannot. Daft is already powering critical workloads at leading companies like Amazon, Mobileye, Together AI, and CloudKitchens.We have built a world-class team drawn from industry giants such as Databricks, AWS, Nvidia, Pinecone, GitHub Copilot, and Tesla, and we’ve quadrupled in size within just one year. Backed by Series A and seed funding from investors including Felicis, CRV, Microsoft M12, Citi, Essence, Y Combinator, Caffeinated Capital, and Array.vc, we’re now looking to double our team. Join us at Eventual as we embark on this exciting journey!We're seeking passionate individuals eager to collaborate in a close-knit team environment, working together four days a week at our Mission District office in San Francisco.

At Plaid, we envision a future where financial interactions are seamless and empowering. Our mission is to revolutionize how individuals manage their finances through innovative tools and experiences utilized by thousands of developers. We support millions in achieving healthier financial lives by enabling connections to their financial accounts through the apps they love. Collaborating with leading companies such as Venmo, SoFi, and many Fortune 500 firms, our network encompasses over 12,000 financial institutions across the U.S., Canada, the UK, and Europe. Established in 2013, our headquarters is in San Francisco, with additional offices in New York, Washington D.C., London, and Amsterdam.As a Senior Fullstack Software Engineer at Plaid, you will play a pivotal role in shaping the future of financial access. You will design and develop robust systems and engaging user experiences that facilitate millions of connections to their finances. Your expertise will span the entire technology stack, allowing you to create scalable backend services and APIs while also delivering intuitive frontend experiences that bring our solutions to life.This position is perfect for engineers who thrive on alternating between backend problem-solving and frontend design, and who are eager to amplify their influence across both domains. You will work collaboratively with product managers, designers, and fellow engineers to deliver reliable, secure, and user-friendly products. At Plaid, you will take ownership early, contribute to key architectural decisions, and witness your contributions impacting millions of users.

Join butterflymx as a Senior Fullstack Software Engineer, where you'll play a pivotal role in developing innovative solutions to enhance our cutting-edge technology platform. Collaborate with cross-functional teams to design, implement, and maintain scalable applications while ensuring high performance and responsiveness. This is an excellent opportunity for a passionate developer eager to contribute to a dynamic team and make a significant impact.