Distinguished Machine Learning Engineer - Safety

About WisdomAIAt WisdomAI, we are committed to democratizing access to data and insights for everyone. We leverage the transformative potential of Generative AI to revolutionize how organizations utilize data for informed decision-making. Join us now, as we partner with multiple Fortune 100 companies and embark on an exciting journey to shape the future of data accessibility and understanding.Position OverviewWe are on the lookout for talented Machine Learning and Natural Language Processing engineers to join our dynamic team. You will tackle core challenges in large language model (LLM) code generation, document comprehension, context synthesis, and the development of LLM-based agents. Our team is comprised of seasoned professionals who hail from industry leaders such as Glean, Apple, Rubrik, Google, and Meta.Key ResponsibilitiesDevelop workflows and agentic pipelines to handle complex analytical tasks.Design and implement an evaluation framework for our query processing engine.Collaborate closely with customers and founders to establish the product and engineering roadmap.Influence the engineering culture and technology stack at WisdomAI.

About ParspecEstablished in 2021, Parspec is at the forefront of transforming material procurement within the $13 trillion USD construction sector. By digitizing and systematically organizing product data, our cutting-edge AI technology offers a dynamic catalogue housing millions of products. This empowers our clients—designers, builders, distributors, and sales agents—to swiftly identify the most suitable products. Supported by top-tier venture investors, Parspec is dedicated to fostering a more innovative, interconnected, and sustainable future in construction. We invite you to join us in developing groundbreaking technologies that redefine one of the oldest and largest industries in the world.The OpportunityWe are in search of an accomplished Senior Machine Learning Engineer to join our talented AI team. In this pivotal role, you will spearhead the design, development, and deployment of advanced machine learning models, concentrating on search ranking, recommendation engines, and precise document extraction. Collaborating closely with business, product, and engineering teams, you will tackle complex data science challenges and create impactful AI-driven features central to our offerings.This position offers a unique chance to lead innovation at the intersection of advanced AI technologies, including LLMs and vector databases, to revolutionize an industry primed for digital transformation.Your Key ResponsibilitiesAI System DevelopmentSearch & Recommendation Systems: Drive the creation and execution of sophisticated Search, Ranking, and Recommendation systems to streamline customer navigation through extensive technical product inventories.Document Extraction & NLP: Engineer high-precision NLP and document extraction pipelines to convert and structure intricate construction data from unstructured formats.Advanced Architecture: Investigate and implement innovative deep learning architectures, with an emphasis on hybrid retrieval models and fine-tuned LLMs.Production Deployment: Develop, train, and deploy scalable deep learning and machine learning models that integrate seamlessly into production systems.Agentic Workflows: Design autonomous or semi-autonomous agents capable of planning and executing multi-step discovery tasks.

About the RoleAt Generalist, we are at the forefront of training expansive robot foundation models, leveraging cutting-edge GPU hardware, primarily from Nvidia, to execute distributed training tasks and experimental research. Our operations demand exceptional storage solutions and optimized data loading processes, necessitating the full utilization of cloud infrastructure alongside custom-built solutions.In this role, you will take charge of our inference infrastructure. Our robotic systems rely on a dedicated fleet of on-premises GPUs designed for demanding real-time computations and latency-sensitive applications within resource-constrained environments.Your Responsibilities:Manage and optimize our GPU compute fleets.Facilitate user-friendly access to GPUs for researchers, ensuring optimal utilization.Enhance ML data loading, transport, and storage systems in extensively utilized distributed environments.Oversee the orchestration of our robot inference fleets.You May Excel in This Position If You:Have experience managing large GPU fleets for large-scale, distributed training or inference.Possess significant expertise in using Slurm or Kubernetes for ML workload orchestration.Have developed high-scale ML data loaders and preparation systems.Understand the intricacies of ML hardware, storage, and networking systems.Are familiar with the Nvidia GPU ecosystem.

Join Our Innovative TeamAt Genesis Therapeutics, we are a dynamic and passionate group of drug discovery experts, deep learning researchers, and software engineers dedicated to revolutionizing biochemistry through AI. Our mission is clear: to uncover and develop transformative therapies for patients with severe medical conditions.Our AI team is at the forefront of creating foundational models for small molecule drug discovery. We conduct cutting-edge research that bridges machine learning, physics, and computational chemistry, while building resilient software systems capable of executing large-scale simulations and training advanced generative and predictive AI models utilizing our powerful cluster of thousands of GPUs and tens of thousands of CPUs.Your RoleWe are on the lookout for skilled ML infrastructure engineers to propel our machine learning research initiatives, particularly in generative modeling of molecular systems, which is vital to our overarching goals.In this position, you will spearhead the rapid advancement of our AI platform and infrastructure, enhancing performance, efficiency, and scalability to unprecedented levels. You will construct expansive distributed training and inference pipelines, essential MLOps tools and frameworks, and fine-tune GPU operations to accelerate ML model performance.Genesis fosters a collaborative and interdisciplinary environment, allowing you to work closely with our talented engineers, researchers, and scientists.Your ResponsibilitiesDrive engineering initiatives aimed at the continuous enhancement of our AI platform, focusing on the rapid development of scalable and robust distributed infrastructures for ML training, inference, and evaluation.Facilitate model training and deployment across various clusters and cloud environments, optimizing for throughput and cost-effectiveness.Maximize the efficiency of ML models and other workloads in terms of latency, throughput, and memory usage, particularly through GPU performance engineering, pushing the boundaries of current hardware capabilities.Contribute to the long-term strategic vision for Genesis’ infrastructure platform.Your ProfileA strong engineering background with a focus on machine learning infrastructure.

About Our TeamAt Genesis Molecular AI, we are a dedicated group of innovative drug hunters, deep learning researchers, and skilled software engineers, all striving to revolutionize biochemistry. Our mission is to harness the power of AI to discover and develop groundbreaking therapies for patients dealing with severe disorders.Our team is engaged in pioneering the development of foundational models for small molecule drug discovery, conducting essential research at the intersection of machine learning, physics, and computational chemistry. We engineer robust software systems that support extensive simulations and facilitate the training of generative and predictive AI models capable of learning from diverse molecular data, leveraging a powerful cluster of thousands of GPUs and tens of thousands of CPUs.About the PositionWe are in search of talented ML Infrastructure Engineers who are ready to take the lead in advancing our machine learning research agenda for generative modeling of molecular systems, a key component of our mission.In this role, you will spearhead the rapid evolution of our AI platform and infrastructure, unlocking unprecedented levels of performance, efficiency, and scalability. You will be responsible for constructing massively distributed training and inference pipelines, core MLOps tools and frameworks, as well as optimizing GPU operations to enhance the speed of ML models.Genesis fosters a collaborative and cross-functional environment, offering the opportunity to work closely with our exceptional engineers, researchers, and scientists.Your ResponsibilitiesLead engineering initiatives aimed at the continuous enhancement of our AI platform, focusing on the rapid development of scalable and resilient distributed infrastructure for ML training, inference, and evaluation.Facilitate model training and deployment across multiple clusters and cloud environments, with an emphasis on optimizing throughput and cost-effectiveness.Maximize the efficiency of ML models and various workloads regarding latency, throughput, and memory usage (e.g., through GPU performance engineering), pushing the limits of current hardware capabilities.Contribute to the long-term strategic vision for Genesis’ infrastructure platform.QualificationsWe are looking for engineers with a strong foundation in software development and a passion for machine learning, particularly in the context of infrastructure and distributed systems.

Join Roblox as a Senior Software Engineer, specializing in Machine Learning Infrastructure. In this role, you will be a key player in designing and developing robust ML systems to enhance our gaming platform. You will collaborate with cross-functional teams to implement scalable solutions that elevate user experiences. Your expertise will directly influence the future of gaming at Roblox.

About Us:At Fireworks AI, we are pioneering the future of generative AI infrastructure. Our platform is recognized for delivering the highest-quality models with the fastest and most scalable inference capabilities in the industry. Proudly benchmarked as a leader in LLM inference speed, we are at the forefront of innovation with projects like function calling and multimodal models. As a Series C company valued at $4 billion, we are supported by prestigious investors including Benchmark, Sequoia, Lightspeed, Index, and Evantic. Our team comprises ambitious builders, many of whom hail from Meta PyTorch and Google Vertex AI.The Role:As an Applied Machine Learning Engineer, you will play a crucial role in bridging the gap between advanced AI research and practical applications. Your responsibilities will include developing, fine-tuning, and operationalizing machine learning models that deliver significant business value and enhance user experiences. This hands-on engineering position demands a blend of deep technical expertise and a strong customer-centric approach to create scalable AI solutions.Key Responsibilities:Customer Success: Collaborate with the Go-To-Market (GTM) team, including Account Executives and Solutions Architects, to ensure seamless integration and successful deployment of machine learning solutions.Demo / Proof of Concept (PoC): Develop and present engaging PoCs that showcase the capabilities of our AI technology.Application Build: Design, develop, and deploy end-to-end AI-powered applications customized to meet customer needs.Platform Features / Bug Fixes: Contribute to the internal machine learning platform by adding features and resolving issues.New Model Enablements: Integrate and enable new machine learning models within the existing platform or client environments.Performance Optimizations: Enhance the performance, efficiency, and scalability of deployed models and applications.Partnership Enablement: Collaborate closely with partners to facilitate joint AI solutions and ensure effective collaboration.

About zaimlerAt zaimler, we recognize that AI agents struggle to make decisions based on fragmented data. Today’s enterprise data is scattered across numerous systems, lacking shared context and structure, which contributes to the challenges faced in enterprise AI. As we transition from copilots to fully autonomous agents, we're establishing a revolutionary infrastructure layer to support this evolution.zaimler serves as the foundational context infrastructure for the agentic era. Our platform autonomously uncovers domain knowledge, maps intricate relationships, and equips AI agents with the semantic understanding necessary for precise operations at scale. Envision knowledge graphs that facilitate real-time inference, designed specifically for systems that require reasoning capabilities, rather than mere data retrieval.Founded by industry veterans Biswajit Das and Sofus Macskassy, zaimler is a small yet highly skilled team at the seed stage, collaborating with major enterprises across sectors such as insurance, travel, and technology. If you aspire to develop the infrastructure that will underpin the next decade of AI advancements, we invite you to join our journey.About the RoleWe are in search of a Senior Machine Learning Engineer to enhance our dynamic team, ideally based in the Bay Area or open to relocation. The perfect candidate will possess strong expertise in one or more of the following areas: Knowledge Extraction, Natural Language Understanding, Unsupervised Learning, Information Retrieval, and Fine-tuning Large Language Models (LLMs). In this pivotal role, you will be instrumental in developing and training the models, pipelines, and methodologies that drive our semantic graph systems. We seek an individual with a robust background in machine learning, natural language processing, LLMs, and semantic technologies, along with a proven history of managing complex, large-scale machine learning projects.

Join the vibrant world of Roblox, where millions of users engage in limitless exploration, creativity, and social interaction through immersive 3D digital experiences, all crafted by our dynamic global community of developers and creators.At Roblox, we are dedicated to constructing the tools and platform that enable our community to transform their imaginative ideas into reality. Our mission is to revolutionize how individuals connect, regardless of their location or device. We aim to unite a billion people with hope and respect, and we are seeking exceptional talent to join us on this journey.A career at Roblox means playing a pivotal role in shaping the future of human interaction, tackling unique technical challenges at scale, and fostering safer, more respectful shared experiences for all.Who We Are:Help shape the future of Roblox’s virtual economy.The Economy ML team is at the forefront of developing the machine learning infrastructure that drives Roblox’s Marketplace, Developer Monetization, and Payments systems. Our initiatives include intelligent pricing strategies, personalized storefronts, dynamic layout optimization, and enhanced avatar understanding, all designed to transform user engagement, monetization, and creator success on a grand scale.As a Principal Software Engineer (Data Systems), you will be responsible for architecting, building, and deploying robust, high-scale real-time and batch data systems aimed at enhancing personalization, search, and recommendation functionalities across Marketplace, Developer Monetization, and Payments products. You will contribute to crucial data projects, from designing event taxonomies and logging interfaces to real-time feature serving across various search and recommendation platforms.Your ResponsibilitiesLead data engineering efforts for the Economy ML team, establishing standards for batch versus streaming feature pipelines, table design, observability, and documentation across the Economy division.Actively engage as a hands-on contributor to our data systems, driving content recommendation, search, and personalization across Economy product surfaces.Collaborate with Product, Data Science, and ML engineering teams to prioritize data initiatives that align with key business objectives and mitigate technical debt in existing datasets and pipelines.Guide and mentor fellow DE/ML engineers on best practices for schema design, client logging, and more.

At Roblox, millions of individuals engage daily to explore, create, play, learn, and connect with friends in immersive 3D digital experiences crafted by our global community of developers and creators.We are dedicated to building tools and platforms that empower our community to realize their imaginative experiences. Our vision is to transform how people connect from anywhere in the world and on any device. Our mission is to unite one billion people with optimism and civility, and we are seeking exceptional talent to help us achieve this goal.Joining Roblox means you will play a pivotal role in shaping the future of human interaction, tackling unique technical challenges at scale, and contributing to the creation of safer, more civil shared experiences for all.The Rights Manager and Content Suitability teams, part of our Safety Experience, are in search of a Senior Machine Learning Engineer.The Safety Experience organization develops tools and systems that empower Roblox users and creators to control their experiences while enabling moderators to uphold our community standards. Our focus includes education, intervention, visibility, and action.Our initiatives include:Monitoring and influencing user behavior for enhanced safety.Building scalable and efficient moderation platforms.Providing transparency and educational resources for parents and developers.Empowering users to manage their own safety.Allowing IP owners to manage their creations on Roblox.Delivering quick and accurate support through our Customer Care Chatbot.Your responsibilities will include:Implementing machine learning solutions for safety-focused systems.Promoting a culture of technical excellence and inclusivity.Breaking down long-term product requirements into actionable phases for continuous improvement.Designing and building large-scale machine learning models with billions of parameters, ensuring they are production-ready.Facilitating complex technical decisions with empathy and foresight.

Every day, millions of users engage with Roblox to explore, create, play, learn, and connect within vibrant 3D digital environments crafted by our diverse global community of developers and creators.At Roblox, we are dedicated to building tools and a platform that enable our community to turn their imaginative experiences into reality. Our vision is to transform how people connect, from any location around the globe, across any device. We are on a mission to unite a billion individuals with positivity and respect, and we are searching for exceptional talent to help us achieve this goal.A career at Roblox means participating in the evolution of human interaction, tackling unique technical challenges on a grand scale, and contributing to creating safer, more respectful shared experiences for all.WHY SAFETY?At Roblox, our commitment is to connect a billion people with optimism and civility. The Safety organization is dedicated to leading the way in fostering civil immersive online communities. We employ systematic strategies to detect, eliminate, and prevent harmful accounts, content, and behavior, ensuring that Roblox accounts remain secure and uncompromised. Our expertise covers a wide array of technological domains, including machine learning, 3D model classification, experimentation, automation, detection workflows, and AI-driven text filtering. Collaborating closely with product teams, we leverage our toolset to uncover new possibilities, influence product development, and enhance safety features while measuring their impact on our community of users and developers. This work is essential in maintaining Roblox as a safe, civil, and inclusive space, promoting positive interactions among individuals worldwide.WHY ALT DEFENSE?Safety and civility are our top priorities at Roblox. The Alt Defense team is at the forefront of this initiative, tasked with addressing one of the most challenging adversarial issues on our platform: Alternate Account Detection and Prevention. When malicious users are banned from Roblox, they often attempt to return under new identities. Our mission is to thwart these attempts immediately. As the Technical Lead for this team, you will design and implement a cutting-edge detection system operating at an enormous scale—analyzing billions of accounts and identifying repeat offenders within minutes. Additionally, you will support various use cases for alternate account detection throughout the organization. You will report directly to the Senior Engineering Manager of the Account Identity Team.

Join Roblox as a Senior Machine Learning Engineering Manager and lead a dynamic team focused on developing cutting-edge machine learning solutions. In this role, you will be responsible for overseeing the design, implementation, and optimization of algorithms that enhance user experience and gameplay. Your leadership will guide the team in leveraging data to drive strategic decisions, ensuring our platform remains at the forefront of technology.

Join Roblox as a Principal Machine Learning Engineer focused on enhancing reliability across our systems. In this pivotal role, you will leverage cutting-edge machine learning techniques to ensure the seamless performance and reliability of our platform. Collaborate with cross-functional teams to design and implement robust ML algorithms that enhance user experience and system functionality.

About ZaimlerAt Zaimler, we believe that AI agents need a profound understanding of data to operate effectively. In today’s fragmented enterprise data landscape, where information is scattered across various systems without a unified context, traditional AI solutions often fall short. We are pioneering the transition from basic copilots to fully autonomous agents, creating a revolutionary infrastructure layer that makes this transition possible.Our platform serves as the foundational context infrastructure for the agentic era. We automatically uncover domain knowledge, establish meaningful relationships, and endow AI agents with the semantic comprehension necessary for precise operations at scale. Imagine knowledge graphs that not only facilitate real-time inference but are also designed for systems that require reasoning capabilities beyond mere retrieval.Founded by industry veterans Biswajit Das, former VP of Engineering at Truera and Chief Architect at Visa, and Sofus Macskassy, ex-Director of Engineering at LinkedIn and creator of one of the largest production knowledge graphs, Zaimler is a close-knit, senior team currently in the seed stage. We are collaborating with major enterprises across sectors such as insurance, travel, and technology. If you are passionate about shaping the infrastructure that will power the next decade of AI innovation, we would love to connect with you.About the RoleAs part of our Machine Learning team, you will focus on transforming raw enterprise data into structured, contextualized knowledge graphs and embeddings. Your responsibilities will include developing innovative and scalable algorithms for machine learning and data engineering aimed at enhancing system efficiency. You will also explore new methodologies to compress large models into more efficient versions, improve retrieval and reasoning performance through feedback mechanisms, and prototype techniques that enable large language models (LLMs) to extract and utilize real-world knowledge efficiently.We seek a candidate who thrives in a fast-paced environment, values meticulous work, and is eager to learn from some of the top engineers and researchers in the field.

Join Roblox as a Machine Learning Engineering Manager focused on Critical Harms where you will lead innovative projects that harness the power of machine learning to enhance safety and user experience on our platform. You will oversee a talented team dedicated to developing cutting-edge algorithms and models that proactively identify and mitigate risks.

Join Roblox as a Principal Machine Learning Engineer specializing in Engineering Efficiency! In this pivotal role, you will leverage cutting-edge machine learning techniques to enhance our engineering processes and optimize performance. Collaborate with a team of talented engineers to deliver innovative solutions that drive productivity and efficiency across our platforms.

Roblox is a dynamic platform where millions engage daily to explore, create, and connect within immersive 3D digital experiences crafted by our global community of developers and creators.We are dedicated to building tools and a platform that empower our community to transform their imaginative ideas into reality. Our vision aims to revolutionize the way people connect, enabling interactions from anywhere in the world and on any device. Our mission is to connect a billion people with positivity and respect, and we are in search of exceptional talent to help us achieve this goal.Joining Roblox means you will be at the forefront of shaping the future of human interaction, tackling unique technical challenges at scale, while enhancing safety and civility in shared experiences for everyone.As the number of daily active users on Roblox continues to surge, we are looking for skilled machine learning engineers who excel in solving complex problems and designing scalable, innovative solutions. In this pivotal role, you will create deep learning models for our performance advertising business, establishing the groundwork for effective ads that benefit our users and deliver significant value to our advertisers.You'll be tasked with developing cutting-edge machine learning solutions that enhance ad ranking algorithms and create personalized advertising experiences. As our advertising system is still evolving, this role presents a unique chance to shape and build a world-class ML-driven advertising platform from the ground up.

Roblox is a dynamic platform where millions engage daily to explore, create, and connect through immersive 3D experiences crafted by a vibrant global community of developers and creators.Our mission at Roblox is to empower individuals to bring their imaginative experiences to life, transforming how people connect from anywhere in the world and on any device. We are dedicated to fostering a community that champions optimism and civility, and we are actively seeking exceptional talent to join us on this journey.Joining Roblox means you will play a pivotal role in shaping the future of human interaction, tackling unique technical challenges at scale, and contributing to safer, more respectful shared experiences for users worldwide.Why Focus on Safety?At Roblox, our commitment is to connect a billion people with optimism and civility. The Safety organization is at the forefront of creating civil immersive online communities. We proactively identify, remove, and mitigate problematic content and behaviors, ensuring that Roblox remains a safe, inclusive, and civil platform that nurtures positive relationships globally.Why Safety AI Systems?As a Principal Machine Learning Engineer specializing in Safety AI Systems, you will be instrumental in defining the future of proactive moderation while making a significant social impact through innovative machine learning solutions. This role merges the technical authority of a Principal Engineer with the leadership of an Engineering Manager, addressing critical safety challenges.You will establish the 3-5 year technical strategy and architectural framework guiding how Roblox employs machine learning—from rapid text filtering to utilizing multimodal Generative AI—to address the most complex safety issues on the platform. Your leadership will shape the execution roadmap and technical planning, overseeing the launch of high-priority machine learning initiatives. You will set the standards for innovation in data quality, model robustness, and ethical deployment across the entire Content & Communication Safety ML division.Lead and expand a high-performing team of contributors, offering both strategic direction and hands-on mentorship to those responsible for the architectural evolution of our safety systems.

At Roblox, our platform allows millions of users to explore, create, and connect in immersive 3D experiences crafted by our diverse community of developers. Every day, players from around the globe engage in imaginative play and learning, and we are dedicated to empowering them with the tools they need to bring their visions to life.Our mission is to foster a connected world, inspiring a billion people to engage with optimism and respect. We are seeking exceptional talent to join us on this journey, shaping the future of human interaction and tackling unique challenges at scale to create safe, enjoyable shared experiences.As a Senior Machine Learning Engineer at Roblox, you will tackle complex problems using cutting-edge AI and machine learning technologies to innovate the experiences of our growing user community. We are looking for leaders in AI and ML to spearhead the development of cost-effective machine learning solutions, guiding the design of essential components for on-device ML operations. Your work will focus on enhancing model architectures, facilitating efficient deployment to cloud and client systems, and managing sophisticated tasks such as Generative AI model deployment. You will play a key role in optimizing architectures across a variety of compute devices, making the best use of available resources. Join us in our exciting journey!