Principal Senior Machine Learning Scientist Jobs

Zscaler (NASDAQ: ZS) accelerates digital transformation so customers can be more agile, efficient, resilient, and secure. The Zscaler Zero Trust Exchange platform protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Distributed across 200+ public data centers globally and thousands of private sites at the edge, the SASE-based Zero Trust Exchange is the world’s largest in-line cloud security platform. We believe the future of work is Human + AI and are building an AI-native enterprise where human potential is amplified by machine intelligence to solve the world’s hardest security challenges. Driven by deep customer obsession, we are committed to the mission, outcome, and to each other. We bring these commitments to life through three core behaviors: ownership and collaboration, trust through outcomes and impact, and a challenge culture with ongoing feedback. Ready to make an impact at the company pioneering security transformation in the AI era? Join us at Zscaler. Role We are looking for a Principal Specialist Sales Engineer to join our Healthcare/SLED team. This is a remote role, reporting to the Director of Specialists Solutions Architects in the Zero Trust Branch department. The Speciality Sales team is a global group of professionals who are passionate about delighting our customers, nurturing trusted partnerships, and sharing their expertise to drive a secure, cloud-enabled digital future and further cement our position as the world leader in cloud security. Sales, Customer Success, Sales Enablement, Solution Architects, Business Development, Transformation, and Technology Partnerships all work together to demonstrate the power and agility of Zscaler cloud transformation to the world, and we are looking for your expertise to elevate our Exposure Management team. What you’ll do (Role Expectations) Create and deliver technical product presentations to prospective customers Gather

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

Aircall is a unicorn, AI-powered customer communications platform used by 22,000+ companies worldwide to drive revenue, resolve issues faster, and scale customer-facing teams. We’re redefining customer communications by bringing voice, SMS, WhatsApp, and AI together into one seamless workspace. Our momentum comes from a simple idea: help teams work smarter, not harder. Aircall’s AI Voice Agent automates routine calls, AI Assist streamlines post-call work, and AI Assist Pro delivers real-time guidance so people can do their best work. The result is higher revenue, faster resolutions, and teams that scale with confidence. Aircall is headquartered in Paris, our European HQ, with a strong North American presence anchored in Seattle, our North American HQ, and teams across Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. We’ve built a product customers love and a business that’s scaling quickly, backed by world-class investors and driven by rapid AI innovation across multiple product lines. At Aircall, you’ll join a company in motion. We’re ambitious, product-driven, and execution-focused, with visible impact, fast decisions, and real growth. How we work at Aircall : We’re customer-obsessed, data-driven, and focused on delivering meaningful outcomes. We value ownership, continuous learning, and thoughtful speed. If you thrive in a collaborative, fast-moving environment where trust and impact matter, you’ll feel at home here. The Team: Communications Platform is the part of Aircall that makes a call connect, a message arrive and a number work. Voice, messaging, numbers, carriers, routing and the APIs on top of them. Every product Aircall sells, from the Workspace to our AI voice and messaging agents, runs on it. That platform is changing shape. Aircall is becoming an AI-native company, and the systems we built for humans on web and mobile now have to serve AI agents as first-class users and participants. That means programm

Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale — unleashing the potential of businesses and people. The Elastic Search AI Platform, used by more than 50% of the Fortune 500, brings together the precision of search and the intelligence of AI to enable everyone to accelerate the results that matter. By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. What is The Role AI is fundamentally transforming how professional services teams build and deliver value. At Elastic, we are focused on creating production-grade services platforms and software engineering practices that work reliably in real-world environments. The agentic engineering platform is a suite of tools designed to automate complex, multi-step delivery workflows across our global services organization. We are looking for a Principal, Agentic Engineering Platform to lead this initiative end-to-end. In this role, you will design, ship, and refine agentic systems that directly support our services team. You will set technical standards, guide product strategy, and manage the complete life cycle: building, testing, deploying, monitoring, and iterating. While automated agents expand what you can deliver, you are the architect and decision-maker responsible for the final outcome. A key early priority is DIMA, Elastic's migration automation platform for SIEM and observability projects. Experience in security, SIEM, or observability will be highly valuable. What You Will Be Doing Services Product Engineering & Platform Leadership: Establish the technical vision and architectural standards for services agentic systems, ensuring automated tools enhance rather than replace engineering judgment. Manage the platform roadmap and release schedul

For over 20 years, Smartsheet has empowered teams to manage work seamlessly and scale solutions smarter. Now, in our most ambitious chapter yet, we are uniting human teams with AI agents. By orchestrating the work agents do best, automating manual tasks and uncovering insights at scale, we create the space for people to focus on what truly matters: judgment, creativity, and big thinking. That is magic at work, and it’s what we show up for every day. We are searching for an experienced global events manager who thrives in evolving environments and is excited to help establish, scale, and mature demand-based event marketing capabilities. As a strategic contributor, you will help define success for the Global Demand Events Marketing team and contribute to the operating model, programs, and execution frameworks required to deliver predictable pipeline impact. You will report to the Director of Demand Events, based in North America, and will balance global consistency with account-specific nuance while serving as a contributing voice for strategic motions in global planning and prioritization. You Will: Lead end-to-end execution of a global portfolio of Tier 1 and Tier 2 third-party and proprietary events, translating global strategy into detailed plans, timelines, and deliverables. Own planning and delivery of industry conferences, sponsorships, hosted experiences, and proprietary programs across regions, ensuring consistent, high-quality execution aligned to global standards. Partner cross-functionally with Product Marketing, Growth Marketing, Field Marketing, Content, Design, Sales, SDRs, and Marketing Operations to operationalize integrated event campaigns and ensure alignment with go-to-market priorities. Drive event programs that generate measurable pipeline and customer engagement through meeting programs, lead capture, attendee journeys, and coordinated post-event follow-up. Manage execution of global sponsorship programs, ensuring fulfillment of contractual deli

The most impactful digital products in the market today are the direct result of a seamless blend of business strategy, design and technology. Orchestrating this behind-the-scenes integration is a Product Manager, who prioritizes the customer experience from vision to execution and, together with their team, guides all workstreams toward a common vision and plan for delivery. We’re looking for a seasoned product leader with a background in Airlines / Travel and Consulting to join the Customer Experience, Product and Design (CXPD) service line. Job responsibilities As a trusted advisor to our client’s leadership, you will partner with them to understand their context and needs, make recommendations, and provide advice and hands-on expertise on taking new products from concept to market to scale. Drive the innovation mindset and the overall product development lifecycle, utilising lean and hypothesis driven approaches to identify, conceptualise and pilot new products that deliver undeniable value. Establish the market & competitive landscape, go to market strategy and business case or economic model for the opportunity with our clients. Lead the stakeholders to think about customer’s problems, business outcomes and take them on the change journey of moving to empowered product teams that create strategic growth for the organisation. Shape and lead teams to deliver client engagements in a way which is both effective for our client and operationally sound for Thoughtworks. Help shape CXPD service line value propositions, creating case studies, points of view and other content through insights on client needs and solutions, and also through defining repeatable practices which will help us to scale our efforts. Get involved in pre-sales, creating proposals and pitches, shaping engagements for clients and helping to educate both clients and colleagues about the value of our services. Contribute to the growth and scale of our evolving business through taking

Shape the Future with Dun & Bradstreet At Dun & Bradstreet, we believe data has the power to create a better tomorrow. As a global leader in business decisioning data and analytics, we help companies worldwide grow, manage risk, and innovate. Since 1841, businesses have trusted us to turn uncertainty into opportunity. We’re a diverse, global team that values creativity, collaboration, and bold ideas. Are you ready to make an impact and help shape what’s next? Join us! Explore opportunities at dnb.com/careers. The Principal Product Manager (Product Led Data Contribution and Business Visibility) owns a product-led data contribution ecosystem where small businesses voluntarily attest to and consent to sharing information through a true freemium experience and then upgrade into paid products that enhance profile completeness, trust, and creditworthiness. This role is accountable for designing the loop that turns self-serve participation into measurable business value and monetization, operating at the intersection of product-led growth (PLG), consent-driven data collection, trust signals, and freemium expansion. The Principal Product Manager leads product strategy, development, and lifecycle management, driving product vision, market analysis, and cross-functional collaboration from ideation through launch and ongoing optimization. Responsibilities: Own the consent-based data contribution loop by designing intuitive, low-friction user experiences that drive attestations and explicit consent. Ensure data contribution experiences clearly communicate purpose, usage, and value delivered back to the business. Define and deliver freemium value including profile completeness, trust indicators, and validation features. Design monetization pathways extending freemium into paid offerings such as advanced scoring and trust badges. Own experimentation and KPIs including attestation completion, consent rates, pr

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. Job Summary Micron Technology is seeking a Principal RTL Design Engineer to lead the development of high-quality DRAM digital and mixed-signal IP. In this role, you will be responsible for the full RTL design lifecycle—from architecture and implementation through signoff—while delivering designs that meet aggressive power, performance, and area (PPA) targets. This position is in Boise, Idaho, offering strong opportunities for technical leadership, innovation, and collaboration across global teams. Responsibilities Own and drive RTL design for DRAM digital and mixed-signal IP from specification through silicon-ready signoff. Architect and deliver high-performance, power- and area-efficient RTL designs aligned with product requirements. Perform and sign off front-end quality checks, including lint, CDC/RDC, synthesis, UPF, and timing QoR. Collaborate closely with physical design, verification, and architecture teams to achieve timing closure and PPA goals. Improve design quality and efficiency by refining methodologies, driving automation, and enhancing RTL design flows. Minimum Qualifications Master’s degree in Electrical Engineering with 8+ years of experience, or Bachelor’s degree with 10+ years of pre-silicon RTL design experience. Proven ownership of complex RTL/IP development from micro-architecture definition through handoff to physical design. Strong experience with ASIC low-power d

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. From the early days, simulated physics has been the foundation of the way users build in Roblox. Our physics engine enables dynamic environments with emergent behavior making games more immersive and exciting. The Physics team develops Roblox's proprietary distributed physics engine. Our team implements the mathematical models behind our dynamic simulation engine, and ships engine APIs and tools that developers use every day. These models incorporate rigid body dynamics arising from external forces, collisions, and constraints while optimizing for real-time performance. We work on integrating the low level physics solver into the rest of the engine for online gameplay across multiple platforms. You will report to the Physics Environment Engineering Manager. You Will: Innovate and implement powerful physics features that empower Roblox developers to create immersive and dynamic experiences. Drive innovation through research and rapid prototyping , translating new ideas into practical solutions that stand the test of time. Optimize and enhance the robustness and performance of the physics engine and its integrations, ensuring a seamless user experience. Collaborate with internal teams and ext

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. 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. WHY SAFETY? At Roblox, we strive to connect a billion people with optimism and civility, and the Safety organization’s mission is to become the leader in civil immersive online communities. We systematically detect, remove, and prevent problematic accounts, content and behavior, and we make Roblox accounts secure and free from compromise. We cover a broad area of the tech spectrum, including machine learning, classifiers for 3

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 . Pinterest is looking for a Principal Engineer to lead the technical strategy and execution for our Indexing & Retrieval Infrastructure across Core, Ads, and Shopping. This role sits at the center of our delivery infrastructure organization and will shape how fresh, relevant, and cost-efficient candidates are generated for the discovery experiences that power Pinterest at scale. What you’ll do: Define and drive the long-term technical vision for indexing and retrieval infrastructure across Core, Ads, and Shopping, aligning architecture investments to measurable improvements in freshness, quality, coverage, reliability, and cost efficiency. Lead cross-org initiatives to modernize Pinterest’s indexing architecture, including advancing unified real-time and incremental retrieval systems that support high-scale, high-quality candidat

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. From the early days, simulated physics has been the foundation of the way users build in Roblox. Our physics engine enables dynamic environments with emergent behavior making games more immersive and exciting. The Physics team develops Roblox's proprietary distributed physics engine. Our team implements the mathematical models behind our dynamic simulation engine, and ships engine APIs and tools that developers use every day. These models incorporate rigid body dynamics arising from external forces, collisions, and constraints while optimizing for real-time performance. We work on integrating the low level physics solver into the rest of the engine for online gameplay across multiple platforms. You will report to the Physics Environment Engineering Manager. You Will: Innovate and implement powerful physics features that empower Roblox developers to create immersive and dynamic experiences. Drive innovation through research and rapid prototyping , translating new ideas into practical solutions that stand the test of time. Optimize and enhance the robustness and performance of the physics engine and its integrations, ensuring a seamless user experience. Collaborate with internal teams and ext

We are a global team of innovators and pioneers dedicated to shaping the future of observability. At New Relic, we build an intelligent platform that empowers companies to thrive in an AI-first world by giving them unparalleled insight into their complex systems. As we continue to expand our global footprint, we're looking for passionate people to join our mission. If you're ready to help the world's best companies optimize their digital applications, we invite you to explore a career with us! Your opportunity Every company shipping AI right now has the same problem: they can't see what their AI is actually doing in production. New Relic is building the answer, AI Observability, and it's one of the company's top strategic initiatives. We're running it like a startup inside the company: small teams, fast iteration, direct executive sponsorship, and a mandate to ship. As the Principal Product Manager and business owner of this initiative, you'll take it from vision through GA, then keep pushing past GA, where most of the real work actually happens, working directly with some of the largest AI deployments in the world. What you'll do Own the AI Observability roadmap and the business outcomes leadership tracks (adoption, retention, expansion), plus the parts of the job that aren't purely product: pricing conversations, exec reporting, and cross-functional escalations. Drive multiple engineering and design teams in parallel toward a coherent product vision, without formal authority over them. Partner directly with strategic enterprise customers, including their platform and infra teams deciding how to operationalize AI safely, and turn what breaks at their scale into product requirements fast enough to matter. Build working prototypes yourself using agentic AI workflows, so ideas get pressure-tested before engineering time is committed to them. Represent AI Observability in executive strategy and prioritization decisions, and make the tradeoff calls when prioritie

Location : Ghent, Belgium/ Bucharest, Romania, hybrid model 2 days on-site About the position We're looking for a Principal Cloud Engineer to join our platform enablement team and help shape the infrastructure foundation that our engineering organisation builds on. This role is suited for someone who has worked in a modern, mature SaaS engineering culture — where autonomous product teams own their own AWS accounts, infrastructure, and CI/CD pipelines, and the platform team's job is to enable them to do that well. You will provide architectural guidance, guardrails, and best practices that help teams move fast without breaking things. This is not a central DevOps role — we don't operate infrastructure on behalf of other teams. We build the rails they run on. If you've spent your career in an enablement or platform engineering function at a SaaS company with autonomous teams and a multi-account AWS environment , this role was written for you. Key Responsibilities Design, implement, and evolve core AWS infrastructure to support the accelerated expansion of our platform capabilities across a multi-account, multi-environment organisation. Own and advance our AWS CDK (TypeScript) standards — you are the expert other teams come to for guidance, code reviews, and architectural decisions on IaC. Provide architectural guidance, guardrails, and reusable patterns that enable autonomous product teams to build and operate their own cloud infrastructure safely and efficiently. Diagnose, troubleshoot, and resolve complex infrastructure and platform issues, including reverse-engineering problems when documentation or context is limited. Help maintain reliable operational support, including participation in on-call and escalation rotations . Partner closely with engineering teams to share context, unblock work, and raise the infrastructure quality bar across the organisation. Support knowledge transfer and continuity in a complex, fast-moving operational environmen

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. Micron’s DRAM Design Engineering Group (DDEG) is where bold ideas become real technology. We push the limits of memory and storage innovation, and we thrive in a collaborative environment where engineers learn, build, and solve challenges together. We are driven by curiosity, creativity, and the pursuit of better solutions every day! We are seeking a Principal or Member of Technical Staff (MTS) in Analog Design to join our DRAM IP Design team. As a Principal/ MTS, you will help shape the next generation of Micron's memory products, while working closely with global design, verification, and product teams to bring innovative circuit designs from concept to silicon. Your work will directly influence product performance, quality, and reliability—and contribute to advancements that define the semiconductor industry. Responsibilities: Design, optimize, and verify block‑level analog and mixed-signal circuits for DRAM projects. Work with the internal data science team and EDA vendors to leverage Agentic- AI and improve AI-assisted design flow and circuits optimization. Propose, evaluate and implement new or improved circuit topology to further enhance PPAC of the circuit block. Improve design verification scope and coverage to increase circuit robustness to enhance mass production yield. Partner with global design groups and provide layout guidance through post‑layout simulation. Com