Performance Modeling Engineer 2 in San Francisco

About the Team OpenAI’s mission is to ensure that artificial general intelligence benefits all of humanity. The Creator Partnerships team supports that mission by building trusted relationships with creators, talent, experts, and organizations that help people understand and use AI in meaningful ways. We work closely with teams across OpenAI to develop thoughtful partnerships and programs grounded in trust, usefulness, cultural relevance, and measurable impact. Our focus extends beyond promoting individual product features. We aim to help partners discover valuable applications of AI, share credible insights with their communities, and create lasting value for both OpenAI and the people we work with. About the Role We are seeking a Scaled Partnerships Manager to own the agency relationships and operating systems that enable OpenAI to work with influencers and creators at scale. This person will manage key creator marketing agencies and platforms, establish clear standards for selection, pricing, deliverables, brand safety, execution, and measurement, and ensure our programs are both culturally credible and operationally rigorous. You will translate go-to-market priorities into repeatable creator programs across a mix of micro, mid-tier, and larger creators. You will be accountable for the full agency and campaign lifecycle, from annual planning and briefing through execution, paid amplification, reporting, optimization, and post-program learning. This role is based in San Francisco, CA. We use a hybrid work model of three days in the office per week and offer relocation assistance to new employees. In This Role, You Will Lead scaled creator marketing programs aligned to business priorities. Own the creator agency portfolio, including partner selection, scopes, budgets, staffing, performance expectations, operating cadence, and business reviews. Build a clear agency model that defines each partner’s role, internal and external ownership, and how work moves from brief

About the Team The Systems Integration team is responsible for building the infrastructure, tooling, and validation systems that ensure our device software our device software is reliable, testable, and ready to ship. We design and maintain build systems, CI pipelines, automated test frameworks, and hardware-in-the-loop labs to enable rapid, safe product launches. Our work spans build systems, developer tools, systems integration, and cross-team collaboration to ensure developers can build reliably and ship with confidence. About the Role We are looking for an engineer to help evolve OpenAI’s Consumer Products build and continuous integration systems for a fast-growing engineering organization. This role sits at the intersection of developer productivity, build systems, distributed infrastructure, software quality, and on-device software. You will work on the systems that determine how quickly and confident engineers can move: Bazel-bazed builds, Buildkite pipelines, test coverage, remote caching and execution, CI observability, and tooling that helps engineers understand and fix failures quickly. Our mission is to enable OpenAI to ship software running on consumer devices rapidly with a high bar for correctness, reliability, and safety. The best version of this work is invisible when it succeeds: builds are fast, tests are trusted, CI failures are understandable, and engineers can focus on shipping products instead of fighting infrastructure. This role is based in San Francisco, CA. We use a hybrid work model of four days in the office per week and offer relocation assistance to new employees. In This Role, You Will Own and evolve Bazel and yocto-based build and test workflows in a polyrepo environment Design and maintain Starlark rules, macros, toolchains, and integrations that make builds hermetic, reproducible, and easy for teams to adopt Improve CI performance and reliability across Buildkite pipelines, including queue time, build time, cache hit rates, retry b

About the Team: OpenAI’s Hardware organization develops AI-native silicon and system-level solutions for the unique demands of advanced AI workloads. Building on efforts like Jalapeño, the team is developing future generations of AI-native silicon and tightly integrated systems to power the next generation of frontier models. By co-designing chips, systems, tools, and methodologies, the team helps deliver faster, more efficient, and production-ready hardware for OpenAI’s supercomputing platform. In this role you will: As a Hardware Test Engineer, you will work on Machine Learning/AI hardware system projects to craft the solutions for current and future data center deployments. You will bring a strong understanding of hardware system testing, excellent project management skills, and the ability to collaborate across multiple teams to ensure efficient lab operations. You will be responsible for designing, implementing, and executing comprehensive test plans that ensure the reliability, performance, and scalability of our supercomputing hardware systems. You will develop detailed test plans and methodologies tailored to hardware components, including processors, memory modules, custom accelerators and interconnects. You will collaborate with hardware design, manufacturing, firmware teams and vendors to identify, analyze, and resolve issues affecting hardware, power, thermal and high-speed interconnects. You will perform in-depth debugging on the hardware system Excellent analytical skills to diagnose hardware issues, troubleshoot problems, and propose solutions. Ability to interpret complex test data, identify trends, and draw meaningful conclusions. High-speed links, with a focus on SerDes (Serializer/Deserializer) technology to assess signal integrity, error rates, and overall link performance. You will collaborate with the lab manager to maintain the equipment and hardware systems, including oscilloscopes, thermal test chambers, liquid cooling systems, and other mea

About the role OpenAI is building a world-class global mobility and immigration program—agile, compliant, technology-enabled, and designed to help exceptional people work where they can have the greatest impact. In this role, you will lead high-impact strategic initiatives, including U.S. permanent residence strategy, M&A, organizational change, and global expansion. This is a senior individual-contributor role for a builder who can translate legal and operational complexity into clear, practical solutions. Reporting to the Head of Global Mobility & Immigration, you will partner with the broader team and lead through expertise and influence across Legal, Corporate Development, Recruiting, People, Finance, business teams, and external counsel to turn emerging business needs into scalable programs, policies, and durable controls. What you'll do Set the roadmap, principles, governance, and operating model for priority global mobility and immigration initiatives. Lead the U.S. permanent residence strategy, including PERM planning, controls, communications, compliance and continuous improvement. Own immigration and mobility workstreams for M&A, divestitures, restructurings, entity changes, and new-market entry—from diligence through integration. Lead global expansion strategy, ensuring work authorization, business travel, and compliance in rapidly growing international jurisdictions. Build reusable playbooks, decision frameworks, risk assessments, and change-management plans. Partner with Legal, Corporate Development, Recruiting, People, Finance, and business leaders to identify implications early and drive sound decisions. Establish dashboards and program-health measures covering compliance, cycle time, quality, cost, vendor performance, and employee experience. Manage external counsel and vendor partners through clear service levels, quality standards, budgets, and outcomes. Use systems, automation, and AI-enabled tools to improve case handling, documentati

We believe that the way people interact with their finances will drastically improve in the next few years. We’re dedicated to empowering this transformation by building the tools and experiences that thousands of developers use to create their own products. Plaid powers the tools millions of people rely on to live a healthier financial life. We work with thousands of companies like Venmo, SoFi, several of the Fortune 500, and many of the largest banks to make it easy for people to connect their financial accounts to the apps and services they want to use. Plaid’s network covers 12,000 financial institutions across the US, Canada, UK and Europe. Founded in 2013, the company is headquartered in San Francisco with offices in New York, Washington D.C., London and Amsterdam. The Marketing Operations (Ops) Team at Plaid builds the essential foundation that enables the Marketing function to operate efficiently, scale sustainably, and align with the company’s strategic goals. We focus on people, technology and process to drive operational excellence and optimize marketing performance. Our team is focused on creating and executing impactful marketing strategies that resonate with our target audiences, drive sustainable growth through high-quality pipeline generation, and enhance marketing efficiency. By integrating innovative technologies, we strive for seamless workflows and data-driven decision-making. We also continuously strengthen the foundation of a high-performing marketing organization, ensuring that processes and systems are in place to support long-term success. Responsibilities: Campaign Planning and Execution: Manage the end-to-end planning and execution of marketing campaigns, ensuring they are well-resourced, delivered on time, and within budget. Cross-Functional Communication and Coordination: Drive ongoing communication and coordination across teams, ensuring alignment and smooth information exchange throughout the lifecycle of each campaign. Meeting Facilit

Who We Are Notion is the collaborative AI workspace where teams and agents think together . We're building one place where your knowledge, projects, meetings, and AI tools live side by side, so work is faster, clearer, and less fragmented. Millions of individuals, small teams, and large companies run their work on Notion. Notinos (our employees) are customer zero in bringing this future of work to life. We care about craft, building things that last, and the belief that great work is still fundamentally human. Our goal isn’t to ship the next feature. Each and every team of Notinos is working to set the standard for how humans work together in the AI era. From building a business’s system of record to making and managing AI agents to automating away the busy work, we care deeply about giving our customers more time for their life’s work. About the Role: The Web Infrastructure team builds the foundations behind Notion’s web clients, including client architecture, performance, reliability, and shared design systems. As Engineering Manager, you’ll lead the team through the evolution from Notion Clients. You’ll set strategy, develop senior engineers and managers, and partner across Notion to make the product faster, more reliable, and easier to build. We work from our offices on Mondays, Tuesdays and Thursdays (our Anchor Days) because we do our best thinking and building together in person. We’re looking for someone who’s excited to work alongside the team during those days. What You'll Achieve: You'll build and manage a diverse and inclusive team of engineers and managers working on core parts of Notion's architecture. You'll create a healthy environment in your team that embodies Notion's values. You'll recruit, coach, and develop engineers. You'll ensure engineers are regularly receiving feedback and making progress on personal and professional goals. You'll facilitate planning—the prioritization, sequencing, and staffing of work—for your team. You'll be responsible

About the Role We are seeking a senior Treasury Markets leader to build and lead OpenAI's investment management, FX, interest rate risk management, and debt markets capabilities. This role will own corporate liquidity investment strategy, global currency risk, rate exposure, and the design of market-risk programs across rates, FX, liquidity, counterparty, and other Treasury exposures. The ideal candidate combines CFA-level investment discipline, hands-on derivatives and capital markets execution, strong tax and accounting fluency, and exceptional executive communication. They should be able to translate complex market, hedge, liquidity, capital structure, credit market, rating agency, tax, accounting, risk, and governance topics into crisp executive-ready recommendations, decision memos, and Board-level materials. In this role, your responsibility will include: Investment Management Own investment strategy for corporate cash and liquidity portfolios, balancing capital preservation, liquidity, yield, diversification, counterparty risk, accounting, tax, and regulatory considerations. Lead portfolio construction, investment policy governance, risk monitoring, performance reporting, manager/counterparty oversight, and compliance for corporate investment portfolios. Maintain market intelligence on rates, credit, liquidity markets, fixed income products, external manager performance, and emerging portfolio risks. FX & Cash Flow Hedging Design and operate FX balance sheet and cash flow hedging programs that align exposure management, hedge objectives, accounting treatment, tax considerations, controls, and business needs. Manage FX and derivatives activity across global operations, including exposure analytics, hedge strategy, trade execution, counterparty management, effectiveness tracking, and reporting. Partner deeply with Accounting, Tax, FP&A, Legal, and business leaders to improve exposure visibility and ensure hedge programs are operationally controlled and

About the team The Partnerships team supports OpenAI’s mission by building and managing external relationships that expand product reach, accelerate adoption, strengthen strategic capabilities, and help the company scale responsibly. We partner across the organization to develop ecosystem strategy, create shared value, and support relationships that are critical to OpenAI’s growth. About the role We’re looking for a Partnerships Manager to lead high-impact relationships across technology, product, go-to-market, and operations. You’ll manage a portfolio of strategic external partners—including technology platforms, distribution channels, service providers, and other ecosystem partners—and work closely with internal teams to turn business needs into effective partnership strategies. This role combines relationship management, commercial judgment, and hands-on execution. You’ll help evaluate new partners, negotiate agreements, improve existing programs, and create the operating mechanisms needed to manage partnerships at scale. This role is based in San Francisco or New York in office 3 days a week. In this role, you will Own and deepen relationships with key strategic and ecosystem partners. Develop partnership strategies aligned with OpenAI’s product, go-to-market, and operational priorities. Source, evaluate, and onboard new partners and service providers. Lead commercial negotiations in partnership with Legal, Business Operations, Procurement, Security, and other stakeholders. Translate complex business requirements into clear partner selection criteria and operating plans. Establish performance metrics, governance processes, and regular business reviews for strategic relationships. Identify opportunities to improve economics, service quality, resilience, and scalability across the partner portfolio. Coordinate cross-functional initiatives involving Sales, Product, Engineering, Legal, Security, Marketing, Business Operations, and other partner-facing teams. Monitor

We're looking for a Senior Mechanical Engineer for Midjourney Medical — from precision electromechanical assemblies up to the large-scale structures and mechanisms that hold everything together and make it move. This role spans the full range of scale: one week you might be refining a compact transducer mount, the next you're architecting a structural frame or designing the motion system that positions hardware within it. This is a hands-on role on a small cross-functional team. You'll take problems from whiteboard sketch to working hardware yourself — designing in CAD, prototyping in the shop, testing, iterating, and integrating with research teams, electrical and software engineers along the way. We move fast and expect you to drive your own work: identifying what needs to happen next, making sound engineering calls without waiting for permission, and shipping hardware that works. What you'll do Own parts of the mechanical systems end to end — structures, mechanisms, and electromechanical integration Design large-scale structures: frames, weldments, enclosures, and support systems, with attention to stiffness, weight, manufacturability, and serviceability Design mechanisms: linkages, motion stages, actuation systems for precise, reliable positioning and articulation Integrate transducers, electronics, cabling, and thermal management into large physical systems Perform engineering analysis (tolerance stack-ups, structural/FEA, mechanism kinematics) to de-risk designs before committing to hardware Build and test relentlessly — 3D printing, rapid prototyping, and hands-on fabrication are core to how you'll validate designs Select parts and materials for system-level integration, balancing performance, cost, and lead time Drive projects independently from concept through validation, and collaborate closely with a small cross-disciplinary team to hit project goals What we're looking for Bachelor's degree in Mechanical Engineering or a related field 5+ years of experien

About the Team OpenAI’s Hardware organization develops AI-native silicon and system-level solutions for the unique demands of advanced AI workloads. Building on efforts like Jalapeño, the team is developing future generations of AI-native silicon and tightly integrated systems to power the next generation of frontier models. By co-designing chips, systems, tools, and methodologies, the team helps deliver faster, more efficient, and production-ready hardware for OpenAI’s supercomputing platform. About the Role You will build the model runtime within the inference engine that executes complex, frontier models at scale on OpenAI’s custom silicon. The runtime will sit between models running on the hardware and the upper layers of the cluster serving software stack, translating demanding inference workloads into efficient execution while optimizing for throughput, latency, utilization, and reliability. You will work across model architecture, distributed systems, compilers, kernels, and silicon to design a production-grade runtime comparable in ambition to systems such as vLLM and SGLang, but customized and optimized for OpenAI’s AI accelerator. Your work will shape how new model capabilities map onto the platform and how quickly custom silicon can deliver meaningful performance in production. In this role, you will: Design and implement the LLM inference runtime for frontier models running on custom silicon. Build scheduling, continuous batching, memory management, KV-cache management, and execution orchestration for high-performance inference. Develop distributed execution strategies across chips, hosts, and racks, including model partitioning, communication, and synchronization. Optimize end-to-end latency, throughput, memory efficiency, and hardware utilization across diverse model architectures and serving workloads. Partner with kernel, compiler, architecture, and silicon teams to co-design interfaces and remove performance bottlenecks across the stack. Enable new

About the Team OpenAI’s Hardware organization develops AI-native silicon and system-level solutions for the unique demands of advanced AI workloads. Building on efforts like Jalapeño, the team is developing future generations of AI-native silicon and tightly integrated systems to power the next generation of frontier models. By co-designing chips, systems, tools, and methodologies, the team helps deliver faster, more efficient, and production-ready hardware for OpenAI’s supercomputing platform. About the Role You will build the low-level device runtime that turns compiled programs into efficient, functional and performant execution on OpenAI’s custom AI accelerator. This software will schedule kernel launches, manage device memory and address spaces, coordinate synchronization, and expose reliable abstractions to higher-level runtimes and frameworks. You will work at the boundary of software and hardware, partnering with compiler, kernel, architecture, verification, and silicon teams to define interfaces and validate behavior. You will also use and improve event-based, cycle-accurate simulation to develop runtime capabilities before silicon is available, diagnose performance and correctness issues, and guide hardware-software co-design. In this role, you will: Design and implement the low-level device runtime for OpenAI custom silicon. Build kernel-launch scheduling, command submission, queueing, dependency tracking, and completion handling. Manage device memory spaces, allocation, virtual-to-physical mappings, data movement, and lifetime across concurrent workloads. Implement synchronization primitives, events, barriers, streams, and ordering guarantees that are correct and efficient. Define clean interfaces between the runtime, drivers, firmware, compiler-generated code, kernels, and higher-level execution systems. Use event-based, cycle-accurate simulators to develop, validate, debug, and performance-tune runtime behavior before and after silicon availability. Di

Who We Are Notion is the collaborative AI workspace where teams and agents think together . We're building one place where your knowledge, projects, meetings, and AI tools live side by side, so work is faster, clearer, and less fragmented. Millions of individuals, small teams, and large companies run their work on Notion. Notinos (our employees) are customer zero in bringing this future of work to life. We care about craft, building things that last, and the belief that great work is still fundamentally human. Our goal isn’t to ship the next feature. Each and every team of Notinos is working to set the standard for how humans work together in the AI era. From building a business’s system of record to making and managing AI agents to automating away the busy work, we care deeply about giving our customers more time for their life’s work. About the Role: As a Developer Platform engineer, you will directly contribute to the foundational pieces that make Notion extensible and connected. You will build tools, APIs, and platform experiences that help customers connect Notion to the world — bringing their apps, data, and workflows into one workspace. Your work will make it easier for developers, admins, and builders to create reliable integrations and automations on top of Notion. You will be a key player in building the robust technical foundation that allows Notion to achieve the connected workspace vision. Your work will include both internal platform contributions that accelerate other Notion engineering teams and end-user-facing functionality that enables toolmaking ubiquity. You will be presented with challenging technical problems, as Notion’s product needs are complex. You’ll play a key role in identifying and executing against technical investments that ensure the long-term quality, reliability, and performance of Notion’s platform as we scale. This role can be based in either San Francisco or New York City. We work from our offices on Mondays, Tuesdays and Thursd

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 . About tvScientific tvScientific is the first and only CTV advertising platform purpose-built for performance marketers. We leverage massive data and cutting-edge science to automate and optimize TV advertising to drive business outcomes. Our solution combines media buying, optimization, measurement, and attribution in one, efficient platform. Our platform is built by industry leaders with a long history in programmatic advertising, digital media, and ad verification who have now purpose-built a CTV performance platform advertisers can trust to grow their business. As a Data Engineer at tvScientific, you will be a key player in implementing the robust data infrastructure to power our data-heavy company. You will collaborate with our cross-functional teams to evolve our core data pipelines, design for efficiency as we scale, and store data

About the Team We are a small and fast-moving partnerships team that shapes and executes OpenAI’s most important collaborations. Your mission is to define and lead the strategy, roadmap, operating model, and growth of OpenAI’s B2B marketplace. You will build the scalable foundation through which customers discover, evaluate, adopt, and manage trusted third-party solutions built on and with OpenAI’s models. About the Role You are a senior marketplace and ecosystem leader with strong judgment, high ownership, and a track record of building scaled B2B platforms. You are comfortable moving between product design, commercial strategy, ecosystem development, and operations, and you can create clarity where there is no playbook. You bring the credibility to align senior internal and external stakeholders while moving quickly and executing at a high bar. Key Responsibilities Define the vision, strategy, roadmap, and success metrics for OpenAI’s marketplace. Own marketplace business performance across partner supply, customer demand, adoption, transaction volume, partner success, solution quality, and customer trust. Partner closely with product and engineering to shape discovery, listing, evaluation, procurement, billing, deployment, identity, governance, security, and measurement capabilities. Build a high-quality ecosystem of ISVs, developers, service providers, and other third-party solution partners. Design marketplace commercial models, policies, incentives, and partner economics with finance, legal, security, policy, and operations. Create scalable go-to-market motions across sales, co-sell, private offers, marketing, and customer success. Establish standards for solution quality, safety, compliance, performance, and lifecycle management. Build and lead the marketplace team and operating cadence, aligning cross-functional owners against clear priorities and outcomes. Qualifications 15+ years of experience in marketplaces, platforms, ecosystems, product, partnerships,

About Mixpanel Mixpanel is the leading product intelligence and analytics platform, trusted by more than 29,000 companies to help understand how people use the products they build. By combining powerful analytics with AI that knows your business, Mixpanel helps teams see what’s working, diagnose what’s not, and decide what to build next. Learn more at mixpanel.com . About the Team The People Operations team owns the systems, processes, and programs that make the employee lifecycle run — from day one through every transition in between. We believe that clean data, simple workflows, and well-designed technology are what let the rest of the People & Talent function do its best work. About the Role We're looking for a People Operations Manager who can look at a messy, ambiguous problem and turn it into a clear plan — then execute it. Day-to-day, you'll own our HR technology stack, lead process transformation across the employee lifecycle, and serve as the go-to partner for Payroll, IT, Legal, and the broader People & Talent team when something needs to be built, fixed, or rethought. You'll work directly with vendors, HRBPs, and leadership to make sure our operations are scalable, compliant, and actually simple to use. In the first year, success means moving us from where we are to where we should be: better-configured systems, documented processes, and a team that trusts what's in our tools. Responsibilities Lead HR operations programs end-to-end — define scope, owners, milestones, risks, and success measures, often starting from an undefined brief. Serve as the primary functional owner for core People technology platforms (e.g., HRIS, ATS, LMS, performance tools), including configuration, upgrades, and feature evaluation. Lead technology deployments, platform conversions, and module rollouts, coordinating across IT, HRIS, and vendor teams. Research and benchmark HR technology trends to build and maintain a People tech roadmap that supports scale. Apply AI and e