Principal Senior Machine Learning Scientist Jobs

HackerRank helps companies like NVIDIA, Amazon, and Microsoft hire and upskill the next generation of developers based on skills, not pedigree. Our platform is trusted by over 2,500 of the world’s most innovative companies to build strong engineering teams ready for what’s next. Software has entered an era where humans and AI build side by side. As this shift accelerates, the definition of strong technical talent is changing. We give companies better ways to identify and invest in next-generation skills. People at HackerRank care deeply about the impact of their work and sweat the small details so our customers can be wildly successful with products they genuinely love to use. We move with urgency and believe great outcomes come from high standards. About the role HackerRank Interviews is a live technical interviewing platform designed to evaluate how candidates solve realistic engineering problems, not just whether they can pass an algorithm test. Candidates and interviewers collaborate in a shared workspace using coding tools, production-style repositories, and Plan-Build-Review tasks. The platform also supports observable AI-assisted development, letting teams assess how candidates prompt, review, and apply AI-generated work, with observation tools and post-interview reports giving hiring teams clearer, structured evidence for decisions. In this role, you'll help lead the Interviews product - an AI-native, pair-programming interview experience that gives interviewers the ability to collaborate with candidates on real-world problems and code repos. You'll shape how the platform evolves across richer ADE experiences (harnesses like Claude Code and Codex CLI), Chakra Assist for evaluation, richer session observation (screen sharing, A/V), and reporting across in-product, exports, APIs and MCP. You'll work closely with engineers as collaborators and as the product's core customer and user base including senior engineering leadership as stakeholders who care deeply ab

NVIDIA DGX Cloud is an AI Factory designed to power the next generation of AI and industrial-scale breakthroughs. As a Principal Engineer for Security Architecture, within our Security Engineering organization, you will own a core security domain of the AI factory: the architecture, the paved road that delivers it, and much of the code underneath. You will hold the security design bar across DGX Cloud from inside the teams doing the building, and this is a founding seat on a new team. Security Engineering is a new organization at DGX Cloud, accountable for the security outcome of the platform, and Security Architecture is the function inside it that holds the design bar. Security here is fleet horizontal and stack vertical, so your work will cross every DGX Cloud engineering organization: you will embed with the teams building GPU clusters, control planes, and services, join their designs as a participant rather than an approver, and leave behind systems in which an entire class of risk is no longer possible. There is no architecture review board here and no approval queue. You are a senior IC with deep security domain knowledge, and the security bar holds because you helped set it and then helped ship it. What You Will Be Doing: Own a Security Domain End to End: Take architectural ownership of a core domain of DGX Cloud security, from the design through the system running in production. That could be tenant and GPU workload isolation, workload identity, infrastructure and network, supply-chain provenance, hardened baselines and patching, or deploy-time policy and admission control. Embed with the Teams Building It: Join the design early, write the code, and help land it. The posture is not "you did this wrong." It is "here are the considerations we need to meet, I will help, let's go to work." Build Paved Roads, Not

Our vision is to transform how the world uses information to enrich life for all . Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. Principal Executive Search Recruiter | Global Executive Search & Talent Intelligence - Contract Opportunity Micron is redefining how the world uses information to enrich life for all. As a global leader in memory and storage solutions, our technology is fundamental to the rapid advancement of artificial intelligence, high-performance computing, data centers, automotive systems, mobile devices, and the intelligent edge. Behind every breakthrough is exceptional leadership. As Micron continues to grow and strengthen its position in the semiconductor industry, we are expanding our internal Executive Search capability to identify, engage, and attract exceptional senior leaders and distinguished technical talent who will help shape our future. We are seeking an accomplished Principal Executive Search Recruiter to join our Global Executive Search team in a contract This role is intended to provide a pathway to a regular full-time position for a successful incumbent, subject to demonstrated performance, continued business need, required approvals, and applicable employment processes. This is an opportunity for a sophisticated, highly accomplished hands-on executive search professional who combines the research rigor, market intelligence, advisory capability, and candidate engagement skills of a top-tier retained search consultant with the ownership, agility, and organizational understan

Our vision is to transform how the world uses information to enrich life for all. Join an inclusive team passionate about one thing: using their expertise in the relentless pursuit of innovation for customers and partners. The solutions we build help make everything from virtual reality experiences to breakthroughs in neural networks possible. We do it all while committing to integrity, sustainability, and giving back to our communities. Because doing so can fuel the very innovation we are pursuing. Main Responsibilities Define and implement technical strategy for structural and electrical film process development aligned to business and technology objectives. Lead multi-functional teams to develop, integrate, and scale thin film processes for advanced NAND structures/devices. Oversee end-to-end development of process modules with focus on manufacturability, scalability, and integration readiness. Resolve complex technical challenges with significant business implications (root cause analysis, mitigation of process/device failures). Drive technology transfer and ramp-up activities to enable transition from R&D to high-volume manufacturing. Lead cost reduction, yield improvement, and reliability enhancement programs through innovative process/material utilization. Other Responsibilities Mentor senior engineers and influence technical direction across the organization. Represent the function in technical forums and strategic collaborations; benchmark against industry standards. Identify emerging trends/risks/opportunities and recommend future investments/critical initiatives. Integrates

Our vision is to transform how the world uses information to enrich life for all. Join an inclusive team passionate about one thing: using their expertise in the relentless pursuit of innovation for customers and partners. The solutions we build help make everything from virtual reality experiences to breakthroughs in neural networks possible. We do it all while committing to integrity, sustainability, and giving back to our communities. Because doing so can fuel the very innovation we are pursuing. Main Responsibilities Strategy, Roadmap & Technical Direction Define and implement technical strategy for cell film process development aligned to business and technology objectives. Identify emerging trends/risks/opportunities and recommend future investments/initiatives. End-to-End Module Development & Scaling Lead multi-functional development, integration, and scaling of thin film processes tailored for advanced NAND devices; ensure manufacturability/scalability/readiness for integration. Drive technology transfer and ramp-up activities to ensure seamless transition from R&D to high-volume manufacturing. Complex Problem Solving & Business Outcomes Resolve complex technical challenges (including RCA/mitigation of process/device failures). Lead cost reduction, yield improvement, and reliability enhancement programs via innovative process/material utilization. Leadership & External Representation Mentor senior engineers and influence technical direction across the organization; represent the function in technical forums and strategic collaborations (consortia, conferences, joint dev

OUR MISSION At Redwood, we empower our customers with lights-out automation for their mission-critical business processes with industry leading products and platforms developed through an AI-Driven Software Development Life Cycle. ABOUT US Redwood Software is the leading orchestration platform for the autonomous enterprise, driving business transformation at the lowest total cost of ownership. Redwood empowers organizations to intelligently automate and orchestrate mission-critical business and IT processes across complex ERP, hybrid cloud, data and emerging agentic AI systems. Through its SaaS-first automation fabric—with AI embedded across the automation lifecycle—Redwood accelerates the path to autonomous operations. Backed by 30 years of experience and trusted by more than 50% of the Fortune 50, Redwood helps organizations unlock human potential to focus on innovation, growth and what’s next. CORE VALUES One Team. One Redwood Make Your Own Weather Obsess over Customer Success Work the Problem Be Curious Own the Outcome Respect Each Other YOUR IMPACT As a Principal Software Engineer, you will be a senior technical leader and strategic influencer shaping Redwood’s RunMyJobs platform. You will drive high-impact technical decisions, own complex system designs, and lead initiatives that span teams and domains. Your work will translate business needs into scalable, resilient full-stack solutions that meet both functional and non-functional requirements. In this fast-paced, agile environment, you will lead projects from concept through delivery, collaborating closely with product, design, engineering, finance, and customer success teams to ensure alignment and success. You will set the standard for engineering excellence by mentoring engineers at all levels and championing a culture of continuous improvement, innovation, and technical rigor. A key part of this role is to ensure development teams follow best practices, coding standards, and technical requirements.

Everpure (NYSE: P) has evolved from storage pioneer to data platform, closing fiscal 2026 with $3.7 billion in revenue, its first billion-dollar quarter, and accelerating growth into FY27. Our strategic agenda spans the companies defining the next era of technology - hyperscalers, AI labs, the AI hardware supply chain, data platform providers, and the broader AI ecosystem. This type of work—work that changes the world—is what the tech industry was founded on. So, if you're ready to seize the endless opportunities and leave your mark, come join us. THE ROLE The Principal Business Systems Analyst for Master Data Management (MDM) will be a critical leader in driving the strategy and execution of business systems that guarantee the accuracy and integrity of our core customer, product, and asset data. You will leverage your deep expertise in enterprise systems and analytical capabilities to deliver high-impact data quality improvements and mentor junior team members. This role is for a highly experienced systems analyst who can lead complex, cross-functional initiatives, influence senior stakeholders, navigate competing priorities, and drive alignment and accountability across the organization . You will partner with senior leaders across functions and regions to translate business needs into scalable system solutions, influence strategic systems planning, and ensure data consistency across the enterprise. WHAT YOU'LL DO Lead and manage complex business systems projects and initiatives focused on improving data quality, consistency, and accuracy across customer, product, and asset data, driving significant business impact. Partner with and influence senior stakeholders across the organization, including Senior Directors and VPs, to drive alignment on requirements and priorities, challenge and push back when needed, and move initiatives toward decisions and outcomes. Design and implement new business systems and processes to enforce data governance standards, ensuring the

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. Roblox’s Service Networking team connects and secures the services behind our platform across our data centers and cloud infrastructure. As a Principal Software Engineer on Service Networking, you will set technical direction and lead hands-on development of the systems that make service-to-service communication reliable, secure, and efficient. You will guide the evolution of our Envoy- and Istio-based platform as services move across Kubernetes, Nomad, and cloud environments. You will partner with Compute, Security, and application teams, and help senior engineers lead complex technical work. You will: Set the technical strategy and roadmap for service mesh, balancing reliability, security, performance, and operating cost. Design and build control-plane and data-plane capabilities for service discovery, routing, load balancing, and traffic policy using Envoy, Istio, and related technologies. Lead integration and migration across Kubernetes, Nomad, and cloud environments, with clear compatibility requirements and safe rollout plans. Partner with Security and application teams to deliver workload identity, mutual TLS, and traffic policy enforcement in production. Improve resource efficiency

About Us SharkNinja is a global product design and technology company, with a diversified portfolio of 5-star rated lifestyle solutions that positively impact people’s lives in homes around the world. Powered by two trusted, global brands, Shark and Ninja , the company has a proven track record of bringing disruptive innovation to market and developing one consumer product after another has allowed SharkNinja to enter multiple product categories, driving significant growth and market share gains. Headquartered in Needham, Massachusetts with more than 4,100 associates, the company’s products are sold at key retailers, online and offline, and through distributors around the world. AI at SharkNinja At SharkNinja, we’re building an AI-native culture. We’re not waiting for the future; we’re creating it. Our people are expected to experiment boldly, adopt new tools, and continuously raise what’s possible to create meaningful impact for our consumers. If you believe the best way to do your job hasn’t been invented yet, you’ll fit right in. The Principal Connected Firmware Engineer is the senior individual technical contributor in SharkNinja's Connected Firmware organization — the deepest hands-on expert in wireless connectivity, display/UI, and device-to-app-to-cloud integration. This role sets technical direction on the hardest connected-architecture problems in the portfolio and holds the technical standard that internal developers and external partners build against. The Principal Engineer designs the connected-platform interfaces and standards, then writes the reference implementations — connectivity stacks, provisioning and pairing code, display/UI frameworks, and app/cloud integration layers — that prove the architecture out in working code before any partner builds against it. That combination is what gives this role its leverage: not just interface contracts and design reviews, but hands-on implementa

About Snorkel Snorkel AI is the frontier AI data lab, helping teams build the data and environments behind high-performing frontier and agentic AI. We combine technology with research-driven AI data development to create datasets, benchmarks, evals, and custom solutions for real-world AI systems. Founded out of the Stanford AI Lab in 2019, Snorkel works with leading AI labs and enterprises to move from better data to better outcomes. Excited to help us redefine how AI is built? Apply to be the newest Snorkeler! About the Team Snorkel's Marketing team shapes how the AI industry understands frontier data development. We're a team spanning brand, content, communications, product marketing, growth, community, and events, and we work directly with our founders and research team to turn original research into market-defining stories. Brand sits at the center of that work: it's how a data research lab earns attention from frontier labs, Fortune 500 enterprises, top researchers, and the domain experts who contribute to our work. About the Role We're hiring a Principal Brand Designer to own the evolution of Snorkel's brand identity. Snorkel has changed faster than its brand has. You'll close that gap: defining where the visual identity goes next, building the system that carries it, and making sure every surface, from the website to a NeurIPS booth to a benchmark leaderboard, looks like it came from the most rigorous lab in AI. This is a senior individual-contributor role with real leverage and autonomy. You'll be hands-on in the work, and you'll also manage our design agency and a bench of freelance contractors, setting direction, reviewing work, and holding a high bar across everything they ship. This role reports to the CMO. Responsibilities Own the brand identity. Lead the next evolution of Snorkel's visual identity, including logo system, typography, color, illustration, iconography, data visualization, motion, and photography direction. Build and govern the brand

About Us SharkNinja is a global product design and technology company, with a diversified portfolio of 5-star rated lifestyle solutions that positively impact people’s lives in homes around the world. Powered by two trusted, global brands, Shark and Ninja , the company has a proven track record of bringing disruptive innovation to market and developing one consumer product after another has allowed SharkNinja to enter multiple product categories, driving significant growth and market share gains. Headquartered in Needham, Massachusetts with more than 4,100 associates, the company’s products are sold at key retailers, online and offline, and through distributors around the world. AI at SharkNinja At SharkNinja, we’re building an AI-native culture. We’re not waiting for the future; we’re creating it. Our people are expected to experiment boldly, adopt new tools, and continuously raise what’s possible to create meaningful impact for our consumers. If you believe the best way to do your job hasn’t been invented yet, you’ll fit right in. Principal Mobile Application Developer About the Role At SharkNinja, we create intelligent, connected products that delight consumers and disrupt categories. We are building systems that integrate hardware, software, and digital experiences using AI-driven processes to help accelerate design, coding, and testing. This is a senior individual-contributor role with full ownership of the mobile app's architecture and the support of new products as they come to the app. You will own the architecture behind how SharkNinja products come to life in the app — the feature architecture, the device experiences, the connectivity flows, and the consumer-facing quality of what is built on it — and partner with product teams to bring new products onto it. You are the technical decision-maker for the app's architecture: you decide how it is built, you set the standards it is h

Everpure (NYSE: P) has evolved from storage pioneer to data platform, closing fiscal 2026 with $3.7 billion in revenue, its first billion-dollar quarter, and accelerating growth into FY27. Our strategic agenda spans the companies defining the next era of technology - hyperscalers, AI labs, the AI hardware supply chain, data platform providers, and the broader AI ecosystem. This type of work—work that changes the world—is what the tech industry was founded on. So, if you're ready to seize the endless opportunities and leave your mark, come join us. THE ROLE As Principal Pricing Strategy Manager, you will serve as the strategic architect of product pricing across Everpure’s portfolio, driving commercial growth, margin optimization, and market expansion. Operating with broad autonomy, you will integrate advanced financial modeling, competitive intelligence, and practical AI application to transform complex data into high-impact pricing frameworks. Collaborating closely with Product Management, Sales, Finance, Monetization, and Executive leadership, you will establish repeatable, data-backed monetization strategies that maximize enterprise revenue and scale pricing operations globally. WHAT YOU'LL DO Architect Strategic Pricing Frameworks : Lead portfolio-wide product pricing strategies, elasticity modeling, and SKU-level margin evaluations to optimize revenue growth and commercial competitiveness. Drive End-to-End Monetization Initiatives : Partner with Product Management, Finance, Operations, and Sales leadership to design, execute, and monitor market-aligned pricing structures and commercial policies. Pioneer AI-Enabled Pricing Operations : Integrate practical AI workflows and automated modeling techniques to accelerate scenario planning, elevate decision-making speed, and build scalable pricing processes. Lead Cross-Functional Governance & Alignment : Establish clear pricing methodology, decision frameworks, and executive materials to align senior stakeholders a

About Cleo Cleo is the AI-native supply chain orchestration company built on modern EDI. We help businesses orchestrate EDI, API, MFT, applications, and trading partner ecosystems with the visibility, intelligence, and control needed to keep business-critical supply chain transactions moving — from order to cash, procure to pay, and everywhere in between. Our platform, Cleo Integration Cloud, brings together integration, workflow automation, real-time monitoring, and Agentic AI intelligence so supply chain, operations, and IT teams can launch partners faster, automate transactions across business systems, resolve exceptions before they become disruptions, and gain actionable insight across the end-to-end supply chain. Trusted by 5,000+ customers across manufacturing, retail, logistics, and distribution, Cleo is headquartered in Rockford, Illinois, with offices in Chicago and Bangalore. We are a team united by one mission: to make supply chains smarter. Cleo Never Stops. The Opportunity As a Senior Implementation Engineer II at Cleo, you are the technical backbone of your TEAM: configuring complex integrations, leading customer status meetings, guiding junior engineers through challenges, and bridging the gap between solution design and hands-on implementation. This is where deep technical execution meets leadership accountability — and where your path to Principal Engineer begins. What You'll Do ▸ Technical Delivery ▸ Lead technical delivery for assigned projects from implementation through Hypercare. ▸ Configure and troubleshoot complex EDI, API, ERP, and B2B integrations. ▸ Build advanced Business Process Sequences (BPS), data mappings, and API workflows. ▸ Implement performance, security, and integration best practices. ▸ Customer & Project Leadership ▸ Act as the primary technical contact throughout project delivery. ▸ Lead customer meetings, workshops, UAT, and technical discussions. ▸ Partner with Project Managers and Solution Architects on planning, scopi

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. The Ads User Experience team at Roblox is dedicated to developing cutting-edge software and integrations that facilitate ads on Roblox. Our focus lies in building a first-of-its-kind ads system in our Game Engine. We are developing different ad formats and integrations, starting with video. We are looking for a Principal Software Engineer with an expertise in C++. This is a high-impact position. Ads at Roblox is at the beginning of our journey, presenting an amazing opportunity to get in at the ground floor and help build a multi-billion dollar business from scratch. We are approaching this challenge with a strong focus on performance and a deep respect for our community — ensuring everyone continues to have an exceptional experience on Roblox. As we move toward enabling cooperative experiences for an infinite number of players in infinitely scalable worlds, we are looking for a Senior Engineer who is both technically exceptional and capable of delivering meaningful, real-world impact. You Will: Help build a first-of-its-kind ads system within the Roblox Game Engine Develop new ad formats and integrations, starting with video Contribute to the design and performance of systems t

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 Locations: London, the UK About the Role: As the Principal, EMEA Sales Strategy and Operations, you will lead the operational strategy and execution for two of our most important regions in EMEA. Reporting directly to the Senior Director of Sales Strategy and Operation for EMEA, you will partner closely with regional sales leadership, global sales operations, marketing, finance, and other cross-functional teams to drive sales productivit