Join Our Team at Hayden AIAt Hayden AI, we are dedicated to revolutionizing public transit and government operations through innovative computer vision technologies. Our mission is to tackle real-world challenges faced by transit systems, enabling them to enhance safety, optimize transportation, and contribute to a sustainable future.We develop advanced mobile perception systems designed to improve transit flow and street safety. As a part of our dynamic team, you will work at the forefront of technology, utilizing AWS and GCP cloud services while developing cutting-edge Linux-based edge devices.Role OverviewWe seek an enthusiastic Senior Software Engineer to enhance our data platform, ensuring it is reliable, scalable, and high-performing. In this role, you will design and construct core data infrastructure, optimize data pipelines, uphold data quality standards, and collaborate closely with product and data science teams to deliver transformative data solutions that drive business insights.

Fastly is looking for a Staff Software Engineer to focus on Edge Applications in San Francisco, CA. This role centers on designing and building software that leverages edge computing to deliver reliable, high-performance solutions for clients. Role overview This position involves creating software that takes advantage of edge computing technologies. The goal is to support strong performance and reliability for Fastly’s customers. What you will do Design and implement solutions using edge computing technology. Develop software that meets high standards for quality and reliability. Collaborate with teams across engineering, product, and operations to build scalable applications. Integrate new features with existing systems to maintain smooth operation. Requirements Experience building software for edge computing or distributed systems. Ability to work with colleagues from different technical backgrounds. Dedication to creating efficient, maintainable, and scalable applications.

About UsAt Hayden AI, we are dedicated to leveraging the capabilities of computer vision to revolutionize how transit systems and government agencies tackle pressing real-world issues.Our cutting-edge mobile perception system enhances bus lane enforcement, transportation optimization, and much more, empowering our clients to speed up transit, improve street safety, and work towards a sustainable future.About the RoleThe Infrastructure Engineering team plays a vital role in the success of Hayden AI products. We are responsible for the foundational infrastructure that links thousands of deployed devices to our extensive, multi-region cloud services and applications that utilize the data collected from these devices. If you consider yourself a force multiplier, you’ll thrive in our dynamic team!Key Responsibilities:Architect the Service Backbone: Lead the design and continuous improvement of our core services architecture, ensuring a robust, high-availability backbone for all cloud services and engineering teams.Drive Technical Roadmap: Define the long-term technical strategy and architectural vision for our cloud services, aligning with future business expansion and technological advancements.Strategic Decision Making: Lead pivotal architectural decisions, conduct in-depth code reviews, and assess technical trade-offs to maintain a sustainable and scalable service ecosystem.Scale Multi-Region Cloud: Design and oversee globally distributed, multi-region cloud deployments utilizing advanced Infrastructure as Code (IaC) for optimal scalability and performance.Automate Everything: Employ automation and modern orchestration tools to minimize manual tasks, enabling a self-service infrastructure model that allows developers to deploy code swiftly and safely.

Hayden AI develops computer vision platforms that assist transit agencies and governments in addressing real-world transportation challenges. The company’s mobile perception technology supports bus lane and bus stop enforcement, enhances transit operations, and aims to create safer streets while promoting sustainability. Role overview The Senior State Estimation Engineer position is based at Hayden AI’s San Francisco headquarters. This role centers on designing and deploying advanced real-time pose estimation algorithms. The work involves both research and practical development, targeting complex mapping challenges at scale. Collaboration and responsibilities Collaboration is an essential part of this role. The Senior State Estimation Engineer will work closely with fellow engineers on multi-sensor calibration efforts, participating in both fieldwork and factory-based projects. The position blends technical leadership with hands-on problem solving in a team setting.

About UsAt Hayden AI, our goal is to leverage computer vision technology to revolutionize how transit systems and government agencies tackle real-world challenges.Our cutting-edge mobile perception systems facilitate bus lane enforcement, transportation optimization, and more, enabling clients to enhance transit efficiency, improve street safety, and promote sustainable practices.About the Perception TeamThe Perception Team at Hayden AI specializes in developing and refining AI algorithms that drive our mobile enforcement systems, analyzing video and image data to identify traffic violations, parking infractions, and other urban compliance issues. This collaborative team works closely with both cloud and device engineering to create and implement perception pipelines that provide actionable insights for our clients.About the RoleAs a Software Engineering Intern focusing on Perception at Hayden AI, you will be integral to the development of AI systems that support our mobile enforcement platform. You will engage with computer vision and machine learning models to process real-world video and image data for detecting traffic violations and urban compliance events.This position intersects machine learning, data analytics, and real-world deployment. Your responsibilities may include improving model accuracy, refining training datasets, assessing edge cases, optimizing inference performance, and developing tools to enhance perception pipelines across cloud and on-device environments.This is not a role for side projects; you will take ownership of significant technical work that impacts our production systems. Under the mentorship of a senior engineer, you will design experiments, implement enhancements, evaluate performance, and help deliver improvements that influence how our systems interpret and respond to the physical world.This internship is perfect for individuals passionate about applied AI, particularly in computer vision, model evaluation, and deploying machine learning systems in real-world settings.The position is based in San Francisco, with a hybrid work schedule requiring at least three days in the office each week.

Join Plaid as a Senior Software Engineer specializing in AI Applications, where you'll be at the forefront of technology, working on innovative solutions that redefine how businesses connect with financial services. In this role, you will design, develop, and deploy cutting-edge AI applications that enhance user experiences and streamline operations.

Hayden AI creates mobile perception systems that help transit agencies and city governments solve transportation challenges. The team’s technology supports bus lane and stop enforcement, improves street safety, and helps make transit systems more efficient and sustainable. This Senior Firmware Engineer role is based at Hayden AI’s San Francisco headquarters. The position sits within the Device Software team and focuses on the low-level software stack powering the company’s edge AI systems. Work centers on direct interaction with hardware to ensure reliable, high-performance operation in real-world settings. Responsibilities Develop and maintain Linux kernel modules and device drivers for embedded platforms. Integrate hardware and software layers for edge AI devices to ensure stable operation. Work closely with hardware engineers and other software teams to deliver high-performance solutions. Troubleshoot and resolve firmware issues in deployed environments. Requirements Significant experience with Linux kernel and device driver development. Strong background in embedded systems and low-level programming. Comfort working directly with hardware and debugging complex system interactions. Experience with edge AI or similar real-time systems is a plus.

About UsAt Hayden AI, we are dedicated to leveraging the potential of computer vision to revolutionize how transit systems and governmental organizations tackle real-world challenges.Our innovative mobile perception platform enhances street safety, accelerates transit solutions, and promotes sustainability through cutting-edge technologies for bus lane enforcement, transportation optimization, and more.Job SummaryThe Hayden Portal is the comprehensive web application that integrates all Hayden products, serving as the primary platform utilized by transit agencies, enforcement partners, operations teams, and customer success personnel to oversee fleets, analyze video data, and ensure compliance. As a Senior Software Engineer, you will be instrumental in evolving this mission-critical platform, working within a collaborative team to create scalable and high-performance systems that include backend APIs and user-friendly, data-rich interfaces. You will take ownership of significant features, guide junior engineers, and help shape the technical direction of the project. Ideal candidates will be pragmatic, product-oriented, and passionate about developing high-quality software that has a meaningful impact.

About UsAt Hayden AI, we are dedicated to revolutionizing the operational capabilities of transit systems and governmental organizations through cutting-edge computer vision technology.Our innovative mobile perception system not only streamlines bus lane and bus stop enforcement but also enhances transportation optimization, enabling our clients to boost transit efficiency, improve street safety, and work towards a sustainable future.About the Role:As a Senior Program Manager, you will play a pivotal role in fostering positive relationships with our clients. You will oversee various projects, including system implementations, and provide comprehensive program management throughout the project lifecycle. A thorough understanding of our products and services will be essential to assist clients effectively and to recommend optimal solutions tailored to their needs. You will act as the voice of the customer and advocate for enhancements to Hayden AI solutions to the product management, engineering, and operations teams.Responsibilities:Customer Onboarding & ImplementationLead and manage all aspects of client onboarding and implementation processes.Create and maintain a detailed implementation schedule that aligns with client needs and internal timelines.Employ the implementation playbook to effectively guide new customer deployments.Provide training to clients on Hayden AI software, ensuring a smooth transfer of knowledge.Issue Resolution & EscalationsServe as the first point of contact for operational challenges, collaborating closely with business strategy leads, operations teams, and project engineers.Proactively identify and address bottlenecks in customer workflows.Coordinate the resolution of complex issues in conjunction with the Engineering team.Monitor and manage escalations, ensuring prompt resolutions.Monitoring & Performance TrackingTrack essential customer metrics such as uptime, adoption rates, and engagement levels.Guarantee that SLAs and contractual obligations are consistently fulfilled.Provide regular updates on project milestones and performance metrics to stakeholders.

Fastly seeks a Staff Software Engineer to focus on Edge Protocols. This position involves designing and building new solutions that enhance the edge cloud platform. The work has a direct impact on performance, scalability, and the experience of clients worldwide. Role focus This role centers on developing protocols and systems that support Fastly's edge infrastructure. Engineering decisions here shape how data moves efficiently and reliably across the platform. Impact Solutions built in this role influence the speed and reliability of Fastly's services. Engineers in this area help ensure clients around the globe receive consistent, high-quality performance. Locations Denver, CO New York City, NY San Francisco, CA

Join ema as a Senior AI Applications Engineer and play a pivotal role in developing cutting-edge AI solutions. You will collaborate with cross-functional teams to design, implement, and optimize AI applications that address real-world challenges. Bring your expertise in machine learning and software development to help us drive innovation and enhance user experiences.

About Retell AIAt Retell AI, we are pioneering the future of call centers through innovative voice AI technology. Our cutting-edge solutions are transforming how companies engage with customers.In just 18 months since our inception, we've empowered thousands of businesses with our AI voice agents that efficiently manage sales, support, and logistics calls, significantly reducing the need for large teams of human agents. Supported by industry-leading investors including Y Combinator and Alt Capital, we've grown our annual recurring revenue from $5M to an impressive $36M while expanding our team from 5 to 20 talented individuals since 2025.Our ambitious vision for 2026 is to develop a state-of-the-art customer experience platform where entire contact centers are driven by AI. Unlike basic automation requiring constant human oversight, we’re engineering intelligent AI “workers” capable of serving as frontline agents, quality assurance analysts, and managerial roles, all while optimizing customer interactions continuously.We are rapidly expanding and seeking driven builders who thrive on solving complex technical challenges, act decisively, and wish to make a tangible impact in one of the fastest-growing voice AI startups.Join us in shaping the future!Recognized as a top 50 AI application in the a16z list: https://tinyurl.com/5853dt2xRanked #4 in Brex's Fast-Growing Software Vendors of 2025: https://www.brex.com/journal/brex-benchmark-december-2025Featured among the top startups on: https://leanaileaderboard.com/

About Liquid AIBorn from the innovation of MIT CSAIL, Liquid AI is at the forefront of developing general-purpose AI systems that operate seamlessly across various deployment platforms, including data center accelerators and on-device hardware. Our solutions prioritize low latency, minimal memory consumption, privacy, and reliability. We collaborate with leading enterprises in sectors such as consumer electronics, automotive, life sciences, and financial services. As we experience rapid growth, we seek extraordinary talent to join our mission.The OpportunityJoin our Edge Inference team, where we transform Liquid Foundation Models into highly optimized machine code for resource-limited devices such as smartphones, laptops, Raspberry Pis, and smartwatches. As key contributors to llama.cpp, we establish the infrastructure necessary for efficient on-device AI. You will collaborate closely with our technical lead to tackle complex challenges that demand a profound understanding of machine learning architectures and hardware constraints. This role offers high ownership, allowing your code to be deployed in production environments and directly influence model performance on real devices.While San Francisco and Boston are preferred, we welcome applicants from other locations.

Responsibilities:Develop Our Product. Take ownership of software features that enhance our AI platform, empowering private market investors to analyze deals swiftly and accurately. This role requires you to actively engage in coding and delivering essential platform components from the ground up.Ensure Quality and Excellence. Establish and maintain coding standards, architectural guidelines, and review procedures; mentor fellow engineers. Co-cultivate a culture centered on practical, reliable, and test-driven development that swiftly meets business requirements.Scale for Growth. Assist in monitoring and scaling the architecture of our platform and its infrastructure.Collaborate Across Functions. Engage closely with product, security, and go-to-market teams to translate our strategic roadmap into actionable features and deliverables.

Join Cloudflare as a Senior Edge Systems Engineer, where you will play a pivotal role in enhancing our cutting-edge edge computing solutions. Collaborate with a team of talented engineers to design, implement, and optimize systems that operate at the forefront of technology, ensuring high performance and security for our global customer base.

Jordan Park is dedicated to providing exceptional investment management and financial guidance to a unique community of individuals, families, and institutions. Our clients have significantly impacted business, philanthropy, government, and society. Our team consists of compassionate problem solvers with diverse experiences. We tackle complexity and overcome challenges to empower our clients in reaching their ideal outcomes.Our mission is to enrich lives and legacies.Senior Associate, Software Engineer – Data Platform & AI ApplicationsSan Francisco, California The Opportunity We are looking for a Senior Associate to contribute to the development and expansion of our enterprise data platform and AI application ecosystem.This position merges advanced data engineering, cloud infrastructure, DevOps practices, and applied AI development. As a senior individual contributor, you will own significant platform components and work closely with leadership and business teams, providing a hands-on technical presence with substantial scope and influence.Your responsibilities will include enabling trustworthy analytics firm-wide, integrating proprietary data into AI systems, automating operational workflows, and crafting customized applications and tools.

The Trade Desk is a leading global technology company dedicated to fostering a better, more open internet for everyone through principled, intelligent advertising. With the capability to handle over 1 trillion queries daily, our platform operates at an unparalleled scale. We pride ourselves on our award-winning culture, built on the foundations of trust, ownership, empathy, and collaboration. We appreciate the unique experiences and perspectives that every individual brings to The Trade Desk, and we are committed to creating inclusive spaces where everyone can express their authentic selves at work. If you are passionate about solving complex problems at scale and are eager to join a dynamic, globally-connected team where your contributions will significantly impact the media ecosystem, we invite you to explore why Fortune magazine consistently ranks The Trade Desk among the top small to medium-sized workplaces worldwide. As a Senior Software Engineer, you will have end-to-end ownership, allowing you to engage in various facets of designing, building, and delivering data-centric products for our stakeholders. At The Trade Desk, we focus on constructing the back-end infrastructure of our platform with an unwavering commitment to quality at scale. Whether developing components for our client-facing applications, crafting internal custom solutions for our teams, or building model pipelines for bidding optimizations, we ensure that the infrastructure, development processes, and tools empower us to execute efficiently. Our systems operate continuously, serving global traffic, and we collaborate in a highly cooperative environment while leveraging a diverse array of technologies. Our back-end developers tackle algorithmic, optimization, and scalability challenges across all our initiatives.

fractional-ai is looking for a Senior or Staff Software Engineer to join the San Francisco office. This position centers on building advanced AI solutions with a team that values both technical depth and collaboration. Role overview This role focuses on designing and developing AI-driven systems. The work involves solving technical challenges and contributing to projects that push the boundaries of what AI can achieve. Collaboration with other engineers and stakeholders is a key part of daily responsibilities. Who will thrive Experienced engineers with a strong background in software development Those who enjoy working on complex technical problems Individuals who value teamwork and open communication Location This position is based in the San Francisco office.

About the RoleAs a Software Engineer, you will play a pivotal role in developing applications utilized by customers, deployment partners, researchers, and various internal teams to diagnose, educate, and perform quality assurance on our robotic systems.This position involves cutting-edge full-stack web and API engineering in a rapidly evolving AI-driven landscape.Your Responsibilities Will Include:Designing and implementing external and internal API interfaces for seamless interaction with Generalist systems.Creating tools and workflows that support and expedite the core objectives of researchers, engineers, and operations teams across the organization.Developing the primary web application used by researchers, operations, and deployment teams to assess and train robotic models.You May Excel in This Position If You:Possess a strong intuition for crafting exceptional user interfaces and experiences.Have a solid understanding of modern web stack technologies, including Typescript, React, FastAPI, Postgres, and AWS.Know how to effectively manage and utilize contemporary AI coding agents to enhance development speed while ensuring high production quality.