Principal Model Optimization Engineer Jobs

About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company. At Cloudflare, we’re not looking for people who wait for a polished roadmap; we’re looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up. If you’re the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, you’ll fit right in. Available Location: Singapore About the Role Cloudflare’s Forward Deployed Engineer (FDE) program (Principal Professional Services Engineer) provides customers with a dedicated, hands-on technical expert embedded directly within their environment. This is not a traditional support or purely advisory engagement—it is a staff-augmentation model where you act as an extension of the customer’s team, taking the lead in managing, optimizing, and evolvin

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone. As a Principal Software Engineer on the Engine DataModel team, you will own and innovate on the foundational components that form the backbone of the Roblox platform. In the Roblox Engine, the DataModel is a tree-like structure that is analogous to a scenegraph in other 3D engines. This role will report to the engineering manager and will be based out of our HQ in San Mateo, CA in a hybrid model 3 days a week (Tuesdays to Thursdays). Our team owns: The core structures and systems are used to build the DataModel and interact with it. The C++ reflection bindings that form the Engine’s Luau API surface and let creators interact with the DataModel. We’ve built custom codegen tooling to generate the C++ for these reflection bindings and other related structures. DataModel serialization … and much more! You will: Develop engine code that performs well for all user-created games on the Roblox platform. Build the core systems and data structures used in the Roblox engine, working with other teams to find universal solutions. Take ownership of projects throughout their full lifecycles. Execute code that performs well on all the devices Roblox supports—from desktop clients to mobile phone clients to

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone. As a Principal Machine Learning Engineer within the Creator Services Machine Intelligence team, you will focus on the research and development of Embodied AI and Behavioral Agents that revolutionize how games are created and played on Roblox. You will bridge the gap between cutting-edge research and massive-scale product application, building agents capable of complex 3D gameplay and unblocking many use cases across Roblox, from automated playtesting to ensure quality, to "ML Players" with human-like movement and strategic reasoning, playing with real players in games. You will work on feature extraction, model training, building validation / RL platform as well as inference set up leveraging methods from imitation learning to reinforcement learning. And you will create generalizable agents that can perceive 3D environments, understand game rules, plan long-term strategies, and execute complex physics-based actions in real-time. You Will: Design and implement foundation models end to end through the feature extraction to inference for embodied agents. Define the long-term roadmap for Game AI and Embodied Intelligence, acting as a technical bar-raiser for code quality and architectural desig

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone. As a Principal Software Engineer of the Game Engine data model team, you will innovate on the core data structures that form the backbone of Roblox’s platform. In this role you will have first hand opportunity to design and build one of the core technologies that makes the Roblox game engine special. The Data Model framework provides an interface between engine capabilities and our creators. It also acts as a fabric to core technologies, such as networking, scripting, Studio, rendering and physics which are essential to the high performance of the Roblox game engine. This role is in our San Mateo, CA HQ three days a week (Tuesdays to Thursdays). You Will: Develop engine code that performs well for all user-created games on the Roblox platform. Establish the foundational architecture and technical direction for the team. Work cross-functionally , across teams and technology platforms to deliver high quality and amazing functionality. Lead by example and mentor engineers to implement technological best practices, patterns, and strategies. Improve the product quality by encouraging automation testing. Take Ownership of projects throughout their full li

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone. With Roblox Ads & Discovery business growing at a rapid rate, we are building large scale ads machine learning infrastructure to deliver more value to our users and our advertisers. As a Machine Learning Infrastructure Engineer, you’ll build scalable, reliable, and high-performance infrastructure that powers ML systems across our organization. You’ll operate at the scales of hundreds of billions of engagements, and redefine how we deliver performance ads to hundreds of millions of users. You will: You will co-design models and systems, working at the intersection of model architecture and ML infrastructure, partnering closely with core modelers, data and AI infrastructure engineers, and product teams to push the boundaries of large-scale training and serving. Your work will span recommendation, search, and agentic applications, including large transformer architectures, LLMs, generative rankers, and efficient offline and online content-understanding systems. You will investigate model, data, and systems tradeoffs end to end—from data pipelines and distributed training to low-latency inference and production serving. This includes designing efficient KV-cache strategies, applying p

We are building a first-of-its-kind ISV partner motion at MongoDB, and this role is a founding part of that effort. As Sr. Partner Manager for ISVs, you will own the identification, development, and scaling of partnerships with independent software vendors across two key categories: industry-specific ISVs building vertical applications in markets like financial services, healthcare, insurance, retail, and manufacturing, and horizontal AI-native ISVs developing platforms and tools that serve builders across industries. This is a greenfield opportunity. You will help shape the program from the ground up, define how MongoDB goes to market with ISV partners, and build a repeatable playbook that scales. You will move from initial outreach and product-market fit validation through to field distribution and co-sell execution with MongoDB's sales organization. This role requires a rare combination of business development instinct, commercial acumen, and the ability to work cross-functionally in a fast-moving environment. We are looking to speak to candidates who are based in London for our hybrid working model. What You'll Do ISV Partnership Development Identify, recruit, and activate high-potential ISV partners across both vertical (industry-specific) and horizontal (AI-native) categories, prioritizing partners with strong product-market fit and distribution potential Source and structure partnership agreements, define joint value propositions, and establish the commercial and technical foundations for long-term partnership success. Validate initial product-market fit with new ISV partners through early integration work, customer proof points, and joint pipeline generation Partner Scaling and Field Distribution Develop and execute partner GTM plans that activate MongoDB's sales field around ISV partner solutions, including co-sell plays, joint account targeting, and field enablement materials Work with ISV partners to drive adoption and distribution of validated integratio

We’re looking for a hardworking, driven Partner Sales Leader with superb energy, passion and initiative to drive partner awareness and channel new business for the fastest growing database on the planet, MongoDB. The Partner Sales team focuses exclusively on formulating and executing a pipeline generation strategy through Partners within assigned territories, resulting in aggressive pipeline growth and new customer acquisition. With a people-first culture, managing and leading our Sales team is top of mind. MongoDB is always changing and innovating — not only in our technology, but also in our sales go-to-market strategy. Our sales leadership is committed to building the best salesforce in technology. This means, inspiring and enabling success for everyone on the team. We not only equip you to be successful, but we want your feedback and input on how we can continue to “Think Big and Go Far.” As a crucial part of the Sales team at MongoDB, you will have access to a lucrative market and learn how to sell from some of the most successful sales leaders in the software industry. We are looking to speak to candidates who are based in Frankfurt for our hybrid working model. Responsibilities Proactively prospect, identify, qualify and develop a sales pipeline through our SI Partners Work with our Sales team to close business to meet and exceed monthly, quarterly and annual bookings objectives Recruit and build strong and effective partner relationships, resulting in growth opportunities Own, on behalf of VP - Area Sales, all things partner related Manage Partners at an Area level but loop back to Global team Interlock with Global Pillar teams for backup and support Participate in our sales enablement trainings, including our comprehensive Sales Bootcamp, sophisticated sales training, and leadership and development programs Collaborate with SI Partners to identify and source NWLs while strategically influencing the acquisition of new business opportunities Qualifications BA

About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we’re on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other’s unique experiences and embrace the flexibility to do your best work. Creating a career you love? It’s Possible. At Pinterest, AI isn't just a feature, it's a powerful partner that augments our creativity and amplifies our impact, and we’re looking for candidates who are excited to be a part of that. To get a complete picture of your experience and abilities, we’ll explore your foundational skills and how you collaborate with AI. Through our interview process, what matters most is that you can always explain your approach, showing us not just what you know, but how you think. You can read more about our AI interview philosophy and how we use AI in our recruiting process here . Millions of people across the world come to Pinterest to find new ideas every day. It’s where they get inspiration, dream about new possibilities and plan for what matters most. Our mission is to help those people find their inspiration and create a life they love. As a Pinterest employee, you’ll be challenged to take on work that upholds this mission and pushes Pinterest forward. As a Principal Engineer on the AI Platform team, you'll help architect the infrastructure that powers both Generative AI and Recommender Systems across Pinterest's entire product suite. Our team builds the end-to-end engines for petabyte-scale data orchestration, model training and fine-tuning, and high-performance inference, ensuring our models scale seamlessly to hundreds of millions of inferences per second in service of over 600 million monthly active users.

Role Description As the Principal, Market & Competitive Intelligence Manager you will lead Dropbox’s enterprise competitive intelligence program across Dropbox Core, DocSend, Sign and Sign API, and Dropbox Protect. Sitting within the Chief Business Officer’s organization, you will work close to the company’s most important strategic and go-to-market decisions. You will build the operating system that turns competitor activity, market developments, customer feedback, win/loss findings, and field signals into clear recommendations and action. This is a highly visible, hands-on leadership role for a senior individual contributor. You will strengthen Dropbox’s competitive positioning, improve how our teams navigate competitive sales cycles, inform product and go-to-market choices, and deepen executive understanding of a rapidly changing market. Your work will span both sales-led and product-led motions and help Dropbox tell a sharper, more differentiated story. You will partner closely with Sales, Product Marketing, Product, Research, Revenue Operations, Analyst Relations, and Communications. Success requires equal strength in strategic judgment and execution: identifying what matters, developing a defensible point of view, and delivering useful recommendations and tools at the speed of the business. Responsibilities Lead Dropbox’s enterprise competitive intelligence program across Dropbox Core, DocSend, Sign and Sign API, and Dropbox Protect. Establish a company-wide operating model for collecting, prioritizing, analyzing, distributing, and measuring competitive intelligence. Translate competitor launches, pricing and product changes, AI developments, customer feedback, and market shifts into actionable recommendations for Sales, GTM Strategy, Product Marketing, Product, and executive leadership. Produce decision-ready intelligence—including executive briefings, competitive points of view, rapid-response analysis, battlecards, alerts, and market coverage—tailored t

Role Description As the Principal, Market & Competitive Intelligence Manager you will lead Dropbox’s enterprise competitive intelligence program across Dropbox Core, DocSend, Sign and Sign API, and Dropbox Protect. Sitting within the Chief Business Officer’s organization, you will work close to the company’s most important strategic and go-to-market decisions. You will build the operating system that turns competitor activity, market developments, customer feedback, win/loss findings, and field signals into clear recommendations and action. This is a highly visible, hands-on leadership role for a senior individual contributor. You will strengthen Dropbox’s competitive positioning, improve how our teams navigate competitive sales cycles, inform product and go-to-market choices, and deepen executive understanding of a rapidly changing market. Your work will span both sales-led and product-led motions and help Dropbox tell a sharper, more differentiated story. You will partner closely with Sales, Product Marketing, Product, Research, Revenue Operations, Analyst Relations, and Communications. Success requires equal strength in strategic judgment and execution: identifying what matters, developing a defensible point of view, and delivering useful recommendations and tools at the speed of the business. Responsibilities Lead Dropbox’s enterprise competitive intelligence program across Dropbox Core, DocSend, Sign and Sign API, and Dropbox Protect. Establish a company-wide operating model for collecting, prioritizing, analyzing, distributing, and measuring competitive intelligence. Translate competitor launches, pricing and product changes, AI developments, customer feedback, and market shifts into actionable recommendations for Sales, GTM Strategy, Product Marketing, Product, and executive leadership. Produce decision-ready intelligence—including executive briefings, competitive points of view, rapid-response analysis, battlecards, alerts, and market coverage—tailored t

About the Team Tax and Trade at OpenAI shapes business strategy by embedding critical tax, export control, customs, and cross-border considerations into how the company builds, sources, scales, and operates in support of the mission. We combine deep expertise with practical systems thinking to look around corners, identify emerging risks and opportunities early, and help teams make smarter decisions at the point where strategy becomes execution. Across procurement, hardware operations, manufacturing, logistics, finance, legal, supplier onboarding, and operator workflows, we build robust, scalable support services leveraging cutting-edge technology—including governed AI and automation—to make complex regulated work more durable, more efficient, and easier to scale. About the Role We’re hiring a Senior Manager, Export Controls to lead OpenAI’s export controls strategy and operating model. This is a senior role with broad scope across advanced computing, semiconductors, software, hardware, manufacturing, and high technology partnerships. You will refine how OpenAI classifies controlled technology, software, and hardware, structures access-controlled environments, manages licensing and supplier commitments, and scales export-control operations in a way that supports the company’s pace of innovation. You will also shape how OpenAI applies AI and agentic workflows to policy-heavy operational work, building systems that make complex rules easier to navigate and easier to execute. In this role, you will: Refine the strategy and operating model for OpenAI’s export controls program across advanced computing, semiconductors, software, hardware, manufacturing, and high technology partnerships. Own export classification and licensing strategy for controlled technical data, software, hardware, and research environments. Lead the design and operation of compliant controlled environments and related governance processes. Partner with Research and Infrastructure to support efficient

About the Team Security is at the foundation of OpenAI’s mission to ensure that artificial general intelligence benefits all of humanity. The Security team protects OpenAI’s technology, people, and products. We are technical in what we build but are operational in how we do our work, and are committed to supporting all products and research at OpenAI. Our Security team tenets include: prioritizing for impact, enabling researchers, preparing for future transformative technologies, and engaging a robust security culture. About the Role OpenAI is seeking a Principal Security Engineer to join our Infrastructure Security (InfraSec) team. InfraSec protects the foundations of OpenAI’s research and production environments, spanning GPU supercomputing clusters, multi-cloud infrastructure, datacenters, networking, storage, and the critical services that power our frontier AI models. Our charter includes securing everything from bare-metal hardware and firmware, to Kubernetes clusters and service meshes, to data storage and access pathways for highly sensitive model weights and user data. As a principal engineer, you will set technical direction and drive execution on high-impact infrastructure security programs, partnering across various orgs at OpenAI to deliver durable controls that raise the security bar at OpenAI scale. In this role, you will: Own end-to-end security outcomes for one or more critical infrastructure areas, including multi-quarter strategy, roadmap, and delivery. Design and build security controls across diverse layers (e.g., physical hardware, firmware/BMC, OS, Kubernetes, networks, and CI/CD) to defend against sophisticated adversaries and insider threats. Lead cross-functional programs to deploy security enhancements and control changes across broad-scale infrastructure, balancing security guarantees with reliability and velocity. Take a generalist approach to building security controls, balancing a mix of security expertise and broad technical skillsets

About the Team Security is at the foundation of OpenAI’s mission to ensure that artificial general intelligence benefits all of humanity. The Security team protects OpenAI’s technology, people, and products. We are technical in what we build but operational in how we execute, and we support every product and research effort at OpenAI. Our tenets include prioritizing for impact, enabling researchers and developers, preparing for future transformative technologies, and fostering a strong, collaborative security culture. About the Role OpenAI is seeking a Principal Software Engineer to join the Infrastructure Security (InfraSec) team. InfraSec safeguards the core of OpenAI’s research and production environments: GPU supercomputing clusters, multi-cloud infrastructure, datacenters, networking, storage, and the critical services that power our frontier AI models. Our charter spans everything from bare-metal hardware and firmware to Kubernetes clusters, service meshes, and the data pathways that carry highly sensitive model weights and user data. As a Principal Software Engineer, you will set technical direction and drive execution of critical foundational services, such as authentication systems, egress/ingress proxies, access brokers, and key management platforms, that demand high standards of reliability, scalability, and software craftsmanship. These systems form the security backbone of OpenAI’s customer and supercomputing environment and must remain robust under intense scale and adversarial pressure. In this role, you will: Own the architecture and roadmap for one or more core security services (e.g., authN/Z, policy enforcement, secure proxies, key management), taking them from design to rollout to long-term operation. Design and implement planet-scale security systems that provide strong guarantees across hardware, operating systems, Kubernetes, networks, and CI/CD: balancing security, reliability, latency, and developer ergonomics. Lead cross-functional launches

At Snowflake, we are powering the era of the agentic enterprise. To usher in this new era, we seek AI-native thinkers across every function who are energized by the opportunity to reinvent how they work. You don’t just use tools; you possess an innate curiosity, treating AI as a high-trust collaborator that is core to how you solve problems and accelerate your impact. We look for low-ego individuals who thrive in dynamic and fast-moving environments and move with an experimental mindset — who rapidly test emerging capabilities to discover simpler, more powerful ways to deliver results. At Snowflake, your role isn't just to execute a function, but to help redefine the future of how work gets done. Snowflake is redefining how enterprises bring data, applications, and AI together. As customers build AI systems for insights, automation, and action, they need governed access to the most important business data in the enterprise: data from systems like SAP, Salesforce, Workday, ServiceNow, and other leading application platforms. Historically, integrating this data meant building pipelines, duplicating data, losing business semantics, and creating operational complexity. The next generation of enterprise AI requires a better pattern: open, governed, zero-copy interoperability across application platforms, open table formats, catalogs, semantics, and Snowflake. We are looking for a hands-on, high-conviction Principal Product Manager to lead and scale Snowflake’s Zero-Copy Integrations product stream. This person will help shape the product strategy, execution model, partner roadmap, commercial motion, and customer experience for how Snowflake interoperates with the world’s most important business application platforms. This is a highly strategic role at the intersection of product, engineering, design, partnerships, GTM, and executive-level customer engagement. You will work closely with leading application vendors and Snowflake teams to define how customers access structu

Role Description Dropbox is entering an exciting new chapter in how we support, retain, and grow our customers. As part of our evolving go-to-market strategy, Customer Experience & Success (CXS) will assume ownership of commercial renewals, creating a unique opportunity to rethink how we drive customer retention and long-term recurring revenue. We're looking for an experienced strategy and operations leader to help shape Dropbox's retention strategy, modernize our renewal operating model, and build the capabilities that enable customers to realize ongoing value from Dropbox. As the Renewals Strategy Principal Program Manager , you'll lead the strategy, operating model, and execution behind this transformation. You'll partner closely with Customer Success, Sales, Revenue Operations, Finance, Product, Legal, and Engineering to develop retention strategies, design scalable programs, and build the playbooks, operating rhythms, and automation that enable Customer Success to successfully own a significant renewal business. This is a builder role for someone who thrives in ambiguity, enjoys designing scalable business capabilities, and is passionate about leveraging AI, automation, and data to improve customer retention and operational excellence. You'll identify new opportunities to reduce churn, increase customer engagement, simplify workflows, and drive measurable business outcomes while helping establish Customer Success as a world-class retention organization. Over time, you'll help shape Dropbox's long-term customer lifecycle strategy, evolving our approach to customer retention across direct, channel, and self-serve motions. Responsibilities Lead Dropbox's retention strategy for commercial customers, identifying opportunities to improve customer outcomes and recurring revenue. Develop scalable retention programs, renewal strategies, and customer lifecycle initiatives that increase customer health, product adoption, and renewal rates. Partner with Customer Succes