Machine Learning Engineer for Detection at Doppel | New York

About UsPhysicsX is an innovative deep-tech firm rooted in numerical physics and Formula One, committed to propelling hardware advancements at software pace.We are developing an AI-driven simulation software suite for engineering and manufacturing across cutting-edge industries. Our technology facilitates high-fidelity, multi-physics simulations through AI inference throughout the engineering lifecycle, unlocking unprecedented levels of optimization and automation in design, manufacturing, and operations. This empowers engineers to expand the limits of what’s possible. Our clientele includes top pioneers in Aerospace & Defense, Materials, Energy, Semiconductors, and Automotive.Note: We are actively hiring for various roles; please apply only for the position that aligns best with your expertise and career aspirations.Who We’re Looking ForAs a Senior Machine Learning Engineer in Delivery, you are a seasoned problem solver and technical leader focused on generating impactful solutions. You possess the ability to grasp complex engineering concepts across diverse industries, spearhead technical initiatives, and work directly with clients—often collaborating on-site—to integrate cutting-edge AI models into practical tools.You have successfully delivered ML systems end-to-end and at scale: designing, building, and testing reliable, scalable ML data pipelines; you are adept at exploring and manipulating 3D point-cloud and mesh data to facilitate geometry-aware modeling; you select optimal libraries, frameworks, and tools, making practical product decisions that pave the way for Delivery's success. Operating at the intersection of data science and software engineering, you transform R&D and project outputs into reusable libraries, tools, and products.With a minimum of 3 years of industry experience (post-Master's or PhD) in a commercial, non-research environment, you are prepared to not only execute but also lead and mentor others. You are passionate about taking ownership of intricate work streams and guiding teams towards success, while continuously enhancing the systems and solutions you engage with to meet the evolving needs of our clients.This RoleAs a Senior Machine Learning Engineer, you will collaborate closely with our Data Scientists, Simulation Engineers, and clients to comprehend and define the engineering and physics challenges we are addressing. You will engage with clients and leverage your influence to guide decisions around reliable deployment with tangible outcomes.You will:Own the deployment of...

Role overview physicsx is seeking a Machine Learning Engineer to join the team in New York. The position centers on designing machine learning models and working with large, complex data. These efforts help drive technology projects and process improvements throughout the company. What you will do Build and refine machine learning models for practical use cases Examine and interpret challenging datasets to extract insights Collaborate with colleagues from a range of disciplines to identify opportunities for machine learning solutions Contribute to technology initiatives and process optimization projects across the organization Location This role is based in New York, United States.

Role overview Peloton Interactive, Inc. seeks a Senior Machine Learning Engineer based in New York. This position centers on building and improving machine learning algorithms that drive the evolution of Peloton’s fitness technology. The team’s efforts support new AI-powered features and enhance the way users engage with Peloton’s products. What you will do Design, develop, and deploy machine learning models for Peloton’s platform Optimize algorithms to improve user experience and increase engagement Work closely with engineers and product teams to deliver AI-driven features Impact This role plays a part in making fitness more accessible and enjoyable for Peloton’s community. The work directly influences how members experience workouts and interact with content on the platform.

Join Tagup, a pioneering defense technology company established at MIT, as we revolutionize logistics superiority through advanced AI solutions. Our mission is to deliver innovative technologies that tackle the most pressing challenges in high-stakes environments. This is your chance to contribute to critical national security efforts and support U.S. and allied forces in meaningful ways. Help us shape the future of defense logistics for a safer world.We are on the lookout for a skilled Machine Learning Engineer to bolster our Salt Lake City team, focusing on the development of next-generation AI-driven defense and aviation systems. In this role, you will transcend traditional model building by designing, deploying, and scaling AI solutions that are essential for mission-critical operations.This position offers a unique opportunity to work at the intersection of groundbreaking research and practical application, creating models and infrastructure that enhance reliability, efficiency, and performance.If you are passionate about overcoming complex technical challenges and wish to make a tangible impact on national security and aviation safety, we invite you to apply.

About Us:At ClarityPay, we empower businesses and their customers by expertly addressing intricate credit challenges with agility, precision, and intelligence. Our blend of extensive experience and cutting-edge technology simplifies processes and consistently yields superior results.As a rapidly expanding fintech firm, we equip enterprise merchants with innovative pay-over-time solutions. From point-of-sale financing to "Buy Now, Pay Later" initiatives and integrated loyalty offers, we are crafting customizable credit tools that enable businesses to reach more customers.Our core values include teamwork, a clear sense of purpose, and a meticulous approach to data-driven decision-making. We prioritize speed and quality to provide an outstanding customer experience.Role Overview:ClarityPay is investing heavily in the development of machine learning products, algorithms, and platforms. We seek technically skilled engineers who are enthusiastic about tackling complex optimization issues related to customer complaints, collections, and offer optimization.This position is suited for an engineer who views the "collections process" as a Reinforcement Learning environment. You will delve deep into the problem space through thorough case reviews to uncover the "why" and "what," and formulate robust hypotheses to enhance outcomes. Transitioning from basic predictive models, you will craft transformative algorithmic solutions utilizing Bayesian Black Box optimization, Contextual Bandits, and Deep Q-Networks (DQN/DDQN).This problem space is primed for innovation, and your curiosity, motivation, and skills will dictate the extent of your impact. You will also have the chance to take on leadership roles, including technical mentorship and managing offshore engineering teams.Key Responsibilities:End-to-End Problem Solving: Take ownership of the entire solution lifecycle. Engage in comprehensive case reviews to develop hypotheses, design rigorous A/B tests for validation, and automate the implementation of successful strategies.Advanced Algorithmic Development: Create and deploy inferential solutions that optimize operational management. Implement and refine advanced methodologies such as Contextual Bandits, Deep Q-Networks (DQN), Double DQN, and Bayesian optimization to deduce causal effects and maximize long-term rewards.Engineering & Reliability: Construct the foundational data infrastructure. Develop robust data pipelines and integrate machine learning models into production-ready systems.

Join SeatGeek: Where Live Events Come to Life!At SeatGeek, we believe that live events are transformative experiences that bring people together. Our innovative technology and fan-centric approach are revolutionizing the ticketing industry.As a pioneering technology company, SeatGeek is on a mission to disrupt the $300 billion ticketing landscape. We have the vision, products, and team to enhance the experience for performers, venues, and fans while establishing a lasting consumer brand. Now, we’re looking for passionate individuals like you to join our journey.We’re seeking a Senior Machine Learning Engineer to join our R&D team, bringing your expertise to our dynamic projects.

Location: New York, NYStart date: ASAPLanguages: English (required)About the RoleJoin Pragmatike as we partner with a dynamic AI cybersecurity firm, recognized by top-tier investors and visionary AI leaders. This innovative company is dedicated to establishing robust security measures for the AI era, safeguarding enterprises from advanced threats, including deepfakes, smishing, and synthetic voice attacks.Following a successful Series B funding round with industry-leading AI and venture partners, the organization is poised for substantial growth. Trusted by major financial institutions, technology giants, and healthcare providers, they are rapidly scaling to meet the demands of a $200 billion market opportunity.We are seeking a Staff Machine Learning Engineer to architect and enhance the company’s machine learning capabilities from the ground up. This role is pivotal to our product vision and focuses on strategic ownership, infrastructure development, and comprehensive execution of machine learning across the organization.Currently, there is no dedicated machine learning infrastructure or team. You will lay the groundwork: identifying where machine learning can add product value, designing end-to-end production systems, and setting the technical roadmap for the evolution of machine learning within the company.This position is highly impactful and offers significant autonomy, ideal for candidates experienced in building production ML systems and ready to develop a robust ML function from inception to full-scale operation.What You'll DoDefine the company's machine learning strategy: identifying application areas across products, determining necessary infrastructure, and making informed build vs. buy decisions.Design and construct production ML systems from scratch, including data pipelines, model training workflows, evaluation frameworks, and inference serving.Establish a rigorous evaluation methodology to assess model quality, identify regressions, and support iterative improvements based on data.Oversee data strategy: define necessary data, structure labeling, establish feedback loops, and ensure models evolve continuously.Collaborate closely with product and backend engineers to integrate machine learning into customer-facing systems.Contribute production-quality code to the existing codebase and participate in architectural decision-making.In time, assist in recruiting, mentoring, and leading the ML team as the function grows.

Join the Nexxen Team!At Nexxen, we are redefining the landscape of advertising through innovative, data-driven solutions. We empower advertisers, agencies, and publishers globally to leverage our cutting-edge technology, which includes a unified demand-side platform (DSP) and supply-side platform (SSP), all anchored by the Nexxen Data Platform.Why Choose Nexxen?As a member of our global team, you will play a pivotal role in transforming the advertising industry. Our culture is built on the 3Cs: Customer Centric, Curious Mindset, and Collaboration without Ego. We pride ourselves on fostering an environment where creativity and teamwork thrive.Your Safety is Our PriorityAt Nexxen, your well-being is paramount. We take the threat of online scams seriously and would never ask for payment or promote dubious job opportunities. Always verify the authenticity of any job posting or communication claiming to be from Nexxen by contacting us at infosec@nexxen.com.Your RoleAs a Senior Machine Learning Engineer on our Applied Data Science team, you will collaborate closely with data scientists to develop state-of-the-art infrastructure for real-time performance optimization and machine learning solutions. This is a hands-on position ideal for someone with a proactive and innovative approach to machine learning and data-driven algorithm development.Work EnvironmentOur team operates on a hybrid schedule, with three days in the office and the flexibility to work remotely for the remainder. We also welcome applicants with senior-level adtech vendor experience for fully remote opportunities.

Nitra creates AI-powered technology designed for healthcare professionals. The company’s mission centers on giving clinicians more time for patients by simplifying their daily work through practical, intelligent tools. Growth at Nitra moves quickly. The company is approaching unicorn valuation and aims to carve out a new category within healthcare technology. The culture values urgency, ambition, and personal ownership. Those who thrive on routine may not find the right match here, but those eager to influence the future of healthcare will encounter meaningful challenges. Nitra’s founders have a track record of building successful companies. The current team includes talent from Microsoft, Meta, and PayPal. The company is well-funded by top investors and benefits from the guidance of respected advisors.

About Treeswift:Facing challenges from severe storms, wildfires, and the demand for affordable energy solutions, Treeswift is dedicated to helping energy companies transform their field operations to tackle unprecedented growth and challenges. Our innovative sensors are deployed in the field, collecting extensive LiDAR and imagery data, which is then analyzed by our advanced AI models to provide actionable insights through our web platform. To date, our technology has empowered utilities to mitigate wildfire risks, streamline regulatory compliance, and accelerate recovery from severe weather events.Since launching our services to utilities in June 2024, we have partnered with three of the five largest utilities in the United States and are rapidly expanding our customer base. We are building a team of passionate experts with extensive backgrounds in robotics from prestigious institutions like Penn, Caltech, and CMU, along with experience in enterprise software development from companies such as Palantir, Stripe, and Oracle. Our mission is supported by leading investors, including Penny Pritzker’s Inspired Capital.Headquartered in lower Manhattan, Treeswift also maintains an office in Philadelphia, with team members located closer to customer sites in the Bay Area.About the Role:We are seeking a talented and driven Machine Learning Engineer to join our dynamic team. In this pivotal role, you will develop and implement cutting-edge machine learning solutions to advance our mission. The ideal candidate will have a strong background in training and deploying models within commercial environments. If you are an enthusiastic engineer with a desire to shape the future of distributed infrastructure management, we encourage you to apply.This position is full-time and offers a hybrid work arrangement, requiring in-person attendance two days a week at our NYC office.Key Responsibilities:Drive the development of innovative machine learning models. Your work will focus on enhancing the efficiency and accuracy of energy infrastructure fieldwork, specifically through the development of LiDAR point cloud models for landscape and infrastructure classification, as well as image models for assessing vegetation attributes such as species and health.

Join SoundCloud, a leading platform that enables artists and fans to connect and share their passion for music. Established in 2007, our artist-first approach empowers creators to develop their careers with innovative tools, services, and resources. With a catalog featuring over 400 million tracks from 40 million artists, the future of music is unfolding at SoundCloud. We are seeking a Senior Machine Learning Engineer to become an integral member of our Reco-Core team. This role presents an exciting opportunity to influence and steer the machine learning initiatives for one of SoundCloud's most essential product areas. You will collaborate closely with machine learning, data, and backend engineers to design, implement, and deploy models that facilitate music discovery for millions of users across our extensive audio catalog.Key Responsibilities:Create and deploy comprehensive machine learning solutions for recommendation systems, focusing on candidate generation, personalization, user and item modeling, and ranking algorithms.Oversee the entire machine learning lifecycle, from prototyping and evaluation to deploying scalable models and monitoring performance in production.Enhance and expand the foundation for ML engineering and MLOps within the Reco-Core team, establishing best practices and developing tools for rapid iteration.Collaborate with analysts and data scientists to convert research findings into production-ready systems.Work alongside fellow ML engineers to utilize shared infrastructure and collective expertise.

Join Virtu’s Research Technology team as an accomplished Machine Learning Engineer. You'll be part of a dynamic group of specialists focused on creating the robust infrastructure that fuels our quantitative researchers. This is a rare chance to engage at the crossroads of machine learning and systematic trading, developing tools that directly influence the efficiency and speed of our research capabilities. In this pivotal role, you will spearhead the development of our machine learning research platform. Your responsibilities will include managing data and computational resources, tracking experiments, and empowering researchers to transition from concept to result with maximum efficiency. Collaborating closely with quantitative analysts and engineers, you will significantly impact the implementation of machine learning practices as we enhance our operational capabilities. Our tech stack primarily includes Python, C++, and Java, complemented by various open-source tools and proprietary technologies.

About FinchAt Finch, we envision a world where every American household has access to legal counsel during significant life events. We are transforming the legal landscape by creating innovative infrastructure that enhances justice accessibility. Our modern consumer law framework automates administrative tasks, prioritizing client needs, starting with personal injury cases.Since our launch in April, we have experienced exponential growth, expanding our reach tenfold and supporting pre-litigation processes for leading law firms nationwide. We seamlessly blend expert operations with cutting-edge AI technology to manage intake, claim initiation, medical records, police reports, lien management, demands, and every detail in between.Backed by distinguished investors including Sequoia and Redpoint, along with founders and CEOs of transformative companies like DoorDash, Ironclad, and Digits, we are fundamentally reshaping how legal services are delivered to everyday Americans. We are in search of exceptional talent to help us scale this mission across the country.This RoleLegal processes often involve navigating unstructured documents, repetitive tasks, and data that current systems struggle to manage. As a Machine Learning Engineer at Finch, you will take ownership of the entire AI system lifecycle—from prototyping to deployment—addressing challenges where a single innovation can significantly enhance law firm operations.What You'll DoIn this hands-on applied AI position, you will develop and deploy production-ready systems rather than just conducting experiments. Your responsibilities will evolve alongside our product and team.Create voice agents, browser agents, OCR pipelines, and LLM-driven workflows that consistently perform well in production.Establish robust evaluation frameworks and feedback mechanisms to enhance model accuracy and dependability.Manage the complete ML lifecycle, including model selection, fine-tuning, prompt engineering, deployment, and monitoring.Collaborate closely with product teams, operations, and legal experts to ensure the AI solutions address the right challenges.Monitor emerging research and tools, making informed decisions on their integration into our technology stack.Who We Have in MindWe seek engineers who prioritize results over algorithms and are equally proficient in production environments and analytical settings. Below are the key qualifications we are looking for.Must-HavesOver 3 years of experience in building and deploying production ML systems.Proficient in Python, with experience across the full ML stack.

At PermitFlow, we are transforming the future of construction across America. As a pioneering applied AI firm, we address one of the most significant information challenges in the construction industry: comprehending what can be built, where, and how. Our innovative AI-driven agents empower the nation’s most rapidly growing construction companies to navigate the complexities of permitting, licensing, inspections, and project closeouts—thereby expediting housing, clean-energy, and infrastructure development nationwide.The construction sector, valued at $1.6 trillion, faces substantial delays, resource wastage, and unrealized opportunities. PermitFlow has successfully provided enhanced speed, accuracy, and visibility to over $20 billion in development projects, aiding contractors in minimizing compliance time, mitigating project risks, and scaling operations with assurance.As the U.S. enters a new capital expenditure supercycle encompassing data centers, factories, housing, and renewable energy, becoming a part of PermitFlow means constructing the AI infrastructure that underpins every construction project and propels the upcoming wave of reindustrialization.We have raised over $90 million, recently completing our Series B funding round, backed by prestigious investors such as Accel, Kleiner Perkins, Initialized, Y Combinator, Felicis, and Altos Ventures, with support from industry leaders at OpenAI, Google, Procore, ServiceTitan, Zillow, PlanGrid, and Uber.Our headquarters are located in New York City, offering a hybrid work schedule (3 days in the office per week). Preference will be given to candidates based in NYC or those willing to relocate.

At Garner Health, our mission is to revolutionize the healthcare economy by providing accessible, high-quality care for everyone.We are fundamentally rethinking how healthcare operates in the U.S. by collaborating with employers to redesign healthcare benefits, utilizing clear incentives and powerful, data-driven insights. This approach directs employees towards superior, cost-effective care, creating a system that benefits everyone involved. Patients enjoy improved health outcomes, employers maximize their healthcare investments, and physicians are incentivized to deliver outstanding care rather than simply increasing procedural volume.Garner is recognized as one of the fastest-growing healthcare technology companies nationwide. Our solutions are trusted by leading employers and providers, and we are committed to assembling a team of talented, mission-driven individuals eager to make a significant impact on healthcare at scale.About the Role:We are on the lookout for a highly skilled Senior Machine Learning Engineer to join our dynamic team. Garner’s Engineering team tackles complex technical challenges that have a meaningful purpose. Our systems analyze billions of medical records to evaluate healthcare providers nationally. Operating primarily on AWS and Kubernetes, we constantly integrate new technologies as our system load doubles each year. We anticipate our engineers to leverage cutting-edge industry practices while we enthusiastically incorporate AI into every facet of our operations. We seek teammates who take pride in their work and contribute positively to our team culture.Work Environment:This position is based in our New York City office (located in the Financial District), with a requirement to work on-site three days a week: Tuesday, Wednesday, and Thursday.Key Responsibilities:Lead team-level technical strategy and execution over multi-quarter timeframes.Utilize AI to develop, enhance, and sustain ML, data, and software systems.Elevate the engineering skill set across the organization by raising the technical standards.Collaborate across disciplines to deepen understanding of our domain and refine project iterations.Safeguard user privacy and security by implementing best practices.

Join our dynamic Machine Learning team at Jane Street, where we're seeking an innovative engineer with extensive experience in machine learning and a solid mathematical background. Your role will be pivotal in shaping the trajectory of our ML platform. Machine learning is integral to Jane Street's global operations. Our fast-paced trading environment offers a unique platform for rapid experimentation in ML, enabling us to seamlessly integrate new concepts. Our team comprises passionate individuals who value exceptional software engineering and the design of user-friendly APIs and systems. Your deep understanding of the ML ecosystem and various methodologies—be it neural networks, random forests, gradient-boosted trees, or advanced ensemble techniques—will be crucial for informed decision-making, ensuring we utilize the optimal tools for each challenge. You will also focus on refining research workflows to enhance our feedback loops. Successful ML engineers can grasp the mechanics of diverse modeling techniques and communicate the underlying mathematics effectively. If you haven't considered a career in finance before, rest assured, you're not alone; many of our team members started in similar positions. While we don't have a rigid set of qualifications, your curiosity and passion for solving complex problems will greatly contribute to our team culture.

Join our dynamic Machine Learning team at Jane Street, where we are seeking a talented Machine Learning Engineer with extensive experience in the field and a solid mathematical background. You will play a crucial role in shaping the direction of our cutting-edge ML platform. Machine learning is a vital component of Jane Street's global operations. Our rapidly evolving trading environment provides a unique platform for ML experimentation, enabling us to seamlessly integrate innovative ideas. Our team is composed of passionate individuals dedicated to the art of software engineering and the creation of user-friendly APIs and systems. We depend on your deep understanding of the ML landscape and various methodologies—be it neural networks, random forests, gradient-boosted trees, or advanced ensemble methods—to facilitate informed decision-making and ensure we employ the most effective tools for each challenge. Your contributions will also focus on refining research workflows to enhance feedback loops. Successful candidates will grasp the underlying mechanics of different modeling techniques and possess the ability to articulate the mathematical principles that govern them. If finance is a new frontier for you, you're not alone—many of us were once in your shoes. While we don't have a strict checklist of qualifications, if you possess a curious mind and a drive to tackle intriguing challenges, we believe you’ll thrive in our environment.

About UsAt Percepta, we are dedicated to revolutionizing essential sectors through applied AI. Our vision is to empower industries that drive the global economy, such as healthcare, manufacturing, and energy, leveraging cutting-edge technology.To achieve this, we partner with leading organizations to facilitate AI transformation. Our strengths lie in:Expertise in engineering, product innovation, and research.Our proprietary toolset, Mosaic, for swiftly implementing intelligent workflows.Strategic alliances with industry giants like Anthropic, McKinsey, AWS, and others within the General Catalyst portfolio.Our rapidly expanding team consists of Applied AI Engineers, Product Managers, and Researchers, all driven by a shared goal of integrating AI advances into practical enhancements in everyday life.Percepta is a proud partner of General Catalyst, a global leader in transformation and investment.Role OverviewWe are seeking talented Machine Learning Engineers to collaborate directly with client teams, defining and delivering impactful AI systems. This is not about prototypes; you will design, build, and deploy production-grade AI agents and workflows that significantly enhance business outcomes for our clients.As a Machine Learning Engineer, you will:Design and optimize AI/ML systems: Create comprehensive ML pipelines for data ingestion, training, evaluation, and deployment. Enhance and adapt LLM models using techniques like fine-tuning, distillation, and retrieval systems to address specific industry challenges.Conduct thorough evaluations of AI systems: Implement custom assessments to validate model performance in real-world applications.Apply advanced methodologies: Stay abreast of the latest innovations in areas such as RAG, tool integration, multi-step agent orchestration, and evaluation frameworks, applying these to meet unique customer needs.Collaborate across teams: Work alongside research and product teams to transform cutting-edge techniques into scalable features and workflows.Enhance our core product: Integrate insights from customer interactions back into our Mosaic product, consistently delivering reusable ML components and infrastructure enhancements.

About WatershedWatershed is a premier enterprise sustainability platform utilized by leading companies such as Airbnb, Carlyle Group, FedEx, Visa, and Dr. Martens to effectively manage climate and ESG data. Our platform provides audit-ready metrics for both voluntary and regulatory compliance, including CSRD, while actively promoting significant decarbonization efforts. We seek passionate team members who thrive in a product-driven environment and are eager to contribute to the culture of a rapidly growing mission-oriented startup.With offices in major cities like San Francisco, New York, Denver, London, Paris, Berlin, Sydney, and Mexico City, alongside a remote workforce across the US and Europe, we invite you to consider joining our innovative journey!The RoleWe are in search of an experienced Machine Learning Engineer with a focus on AI to join our dynamic team. In this pivotal role, you will serve as a technical leader responsible for developing world-class AI tools that empower companies to measure and mitigate their carbon emissions. Your expertise in large language models (LLMs), embeddings, and other AI technologies will be instrumental in delivering exceptional features to our clients, as well as establishing the technological foundation for AI at Watershed.Key Responsibilities:Prototype, develop, and refine new product areas for Watershed, equipping our customers with powerful AI capabilities to transform data and discover methods for reducing their emissions.Productionize and launch core technologies that drive AI functionalities based on extensive operational sustainability data.Collaborate closely with product teams and other AI engineering groups to define product and technical strategies.Build evaluations, fine-tune models, and create agent harnesses to establish reliable AI systems.Stay updated on advancements in AI technology to assess their applicability for Watershed.Write high-performance, maintainable, and well-documented code across our technology stack.