Senior Principal Model Optimization Engineer Jobs

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. About the Role Jobs Platform is Roblox's multi-tier orchestration system for microservices, powering AI Inference across Roblox. Through a simple developer API, we deliver a "deploy and forget" runtime, hiding the complexity of scheduling, scaling, and reliably running services across our on-prem and multi-cloud footprint at global scale. As Principal Product Manager, Jobs Platform, you'll take the helm at a defining moment - leading the charge as we scale the platform to become the default runtime for critical Roblox services worldwide. You Will Own Jobs Platform end-to-end - set the multi-year vision for how Roblox engineers deploy, run, and scale A

We’re building a world of health around every individual — shaping a more connected, convenient and compassionate health experience. At CVS Health®, you’ll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize safety and quality in everything we do. Join us and be part of something bigger – helping to simplify health care one person, one family and one community at a time. Position Summary We are seeking a highly experienced Principal / Director-level Full-Stack Software Development Engineer to join our Digital Caremark organization and lead the architecture, design, and delivery of next-generation digital solutions. This role spans AI-enabled applications, scalable digital platforms, and enterprise integrations that power critical healthcare and pharmacy experiences. This is a senior technical leadership role for a hands-on engineer who can operate across the full stack—from intuitive front-end applications to resilient backend services—while setting architectural direction, influencing engineering standards, and mentoring teams. The ideal candidate combines deep technical expertise, platform thinking, and strong collaboration skills to build secure, scalable, API-first solutions in a highly regulated environment. Key Responsibilities: Architecture & System Design • Define and drive architecture for large-scale distributed systems and digital platforms • Lead design reviews and set architecture standards and best practices • Champion API-first, microservices, and event-driven architecture patterns • Ensure systems meet scalability, reliability, security, and compliance requirements • Balance performance, cost, and speed in technical decision-making Fu

Principal Software Engineer in Test eClinical Solutions is transforming clinical development with elluminate®, our Clinical Data Cloud, helping life sciences organizations unify, analyze, and unlock the value of their data faster than ever before. By combining a modern cloud platform with expert data services, we empower smarter decisions across the clinical trial lifecycle—accelerating innovation that ultimately improves patient outcomes. Our engineering teams build enterprise-grade, revenue-generating products at the intersection of cloud, data, analytics, and emerging AI technologies. If you’re excited about building sophisticated software that makes a real-world impact in healthcare, this is the place to do it. You will make an impact: The Principal SDET will be a core member of the eClinical Solutions R&D Team. The Principal SDET will be primarily responsible for architecting and evolving automation frameworks and infrastructure, providing technical leadership, mentoring engineers, reviewing automation code quality, driving automation strategy, ensuring scalable and maintainable test automation solutions across the organization, and driving the initiative of migrating existing tests and infrastructure onto a new testing platform. In addition, the Principal SDET will collaborate closely with development, DevOps, architecture, and QA teams to establish best practices for automation, quality engineering, continuous testing, and system reliability. This position will report to the Senior Director, Software Quality Assurance Your day to day: Design, develop, and maintain scalable enterprise-level test automation frameworks from scratch. Lead framework and infrastructure evolution initiatives as part of the global SQA automation team. Drive migration initiatives for existing automation frameworks, test suites, and infrastructure onto modern testing platforms. Provide technical leadership and mentorship to automation engineers and SDET teams. Hands-on experience i

Become a part of our caring community The Actuarial Analytics/Forecasting Principal analyzes and forecasts financial, economic, and other data to provide accurate and timely information for strategic and operational decisions. Establishes metrics, provides data analyses, and works directly to support business intelligence. Evaluates industry, economic, financial, and market trends to forecast the organization's short, medium and long-term financial and competitive position. The Actuarial Analytics/Forecasting Principal provides strategic advice and guidance to functional team(s). Highly skilled with broad, advanced technical experience. The Actuarial Analytics/Forecasting Principal ensures data integrity by developing and executing necessary processes and controls around the flow of data. Collaborates with stakeholders to understand business needs/issues, troubleshoots problems, conducts root cause analysis, and develops cost effective resolutions for data anomalies. Works with senior executives to develop and drive segments or enterprise-wide functional strategies. Advises one or more areas, programs or functions and provides recommendations to senior executives on matters of significance, and as an advanced subject matter expert competent to work at very high levels in multiple knowledge and functional areas across the enterprise. Responsibilities Analyze and forecast financial, economic, and operational data to support strategic and day-to-day business decisions. Develop accurate, timely reporting and insights for leadership and business partners. Establish performance metrics and key indicators to support business intelligence and decision-making. Evaluate industry, economic, financial, and market trends to assess Humana’s short-, medium-, and long-term financial and competitive position. Provide strategic actu

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 Product Manager to join our team. This is a Hybrid role, reporting to the Senior Director, Product Management in the Product Management department. This role will lead strategy, roadmap, and adoption for critical ZPA platform initiatives, focusing on driving foundational platform capabilities that improve scalability, resiliency, operational efficiency, and customer adoption across a complex enterprise product portfolio. As a highly strategic and cross-functional product leader, you will partner closely with engineering, architecture, operations, and go-to-market teams to define and deliver infrastructure investments that strengthen platform performance, simplify operations, and support the needs of both commercial and regulated environments. What you’ll do (Role Expectations) Define and drive the roadmap for key infrastructure and platform capabilities Partner cross-functionally with eng

Ready to do the most impactful work of your career? At Coinbase , we are uncompromising on our mission to increase economic freedom. The bar is high, the environment is intense, and we like it that way. This isn't a place for complacency, it’s a place to be pushed past your perceived limits. If you're ready to build the future of finance alongside people who refuse to settle for "good enough," you belong here. Coinbase is a remote-first, but not remote-only company. Expect to get together quarterly for intense in-person working sessions called “surges.” learn more about working at Coinbase . We're hiring a Principal Recruiter to join our Core Recruiting team within People Success. This team owns hiring across Coinbase's G&A functions, and you'll be responsible for owning full-lifecycle recruiting for some of our hardest-to-fill roles. You'll partner directly with senior leaders to deeply understand their talent needs, build strong pipelines, and drive process improvements that help the recruiting team scale. What you'll do: Own the full recruitment lifecycle from role intake through close for complex, senior-level searches across your Core portfolio Build candidate pipelines through self-sourcing and competitive research, ensuring sufficient depth and quality at each stage to maintain hiring velocity Partner with senior leaders across your client groups to translate hiring needs into effective search strategies and a strong candidate and interviewer experience Drive data integrity and use pipeline analytics to inform hiring efficiency, surface bottlenecks, and improve outcomes for your hiring teams Design and implement recruiting processes and pilot programs that help the team scale its impact across global markets Required Skills and Experience: 8+ years of full-lifecycle recruiting experience in a technology company or similarly fast-paced, high-growth environment, with demonstrated success closing senior and hard-to-attract candidates Experience b

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 about empowering enterprises to achieve their full potential, and people too. With a culture that's all in on impact, innovation, and collaboration, Snowflake is the sweet spot for building big, moving fast, and taking technology and careers to the next level. We are hiring a Principal Forward Deployed Engineer II for our Frontier Engineering team. This team embeds directly with Snowflake's most strategic customers to design, build, and deploy production-grade AI systems . At the IC6 level, you serve as the senior technical authority and architectural leader for a portfolio of high-impact customer engagements. You operate as a peer technical advisor to CTOs, VPs of Engineering, chief architects, and heads of data and AI, setting technical direction that extends beyond individual accounts and influences how Snowflake delivers AI solutions at scale. AS A PRINCIPAL FORWARD DEPLOYED ENGINEER II YOU WILL: Serve as the senior technical authority and architectural leader for customer engineering leadership: Build durable, peer-level relationships with CTOs, VPs of Engineering, chief architects, and heads of data and AI at Snowflake’s most strategic accounts. Lead architectural steering, technical reviews, and executive strategy alignment while shaping multi-year AI ro

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 about empowering enterprises to achieve their full potential, and people too. With a culture that's all in on impact, innovation, and collaboration, Snowflake is the sweet spot for building big, moving fast, and taking technology and careers to the next level. We are hiring a Principal Forward Deployed Engineer for our Frontier Engineering team. This team embeds directly with Snowflake's most strategic customers to design, build, and deploy production-grade AI systems . At the Principal level, you are the senior technical counterpart to CTOs, VPs of Engineering, and chief architects at our largest enterprise customers; you set the technical direction that the Frontier Engineering organization follows. AS A PRINCIPAL FORWARD DEPLOYED ENGINEER YOU WILL: Be the trusted technical partner to customer engineering leadership: Build durable, peer-level relationships with CTOs, VPs of Engineering, chief architects, and heads of data/AI at Snowflake’s most strategic accounts: lead architectural steering, technical reviews, and executive strategy alignment to help shape their AI roadmaps. Drive Architecture & Technical Strategy Across High-Stakes Deployments: Own end-to-end technical execution and outcomes across Snowflake’s most complex, high-visibility AI engagement

Our Global Structure Deliveroo is now part of DoorDash, bringing together teams with even greater reach, scale, and ambition. Depending on your role, you may collaborate with teammates, systems, and leaders across DoorDash and Wolt. Together, we’re unlocking new possibilities as one global team. Join us in our mission to transform the way people shop and eat, where impact, innovation and growth drive everything we do. Our Product team defines how millions of people experience Deliveroo, turning complex marketplace challenges into simple, high-impact solutions. Working at the intersection of data, design and engineering, we set direction, prioritise what matters most, and deliver outcomes that move the business forward. We’re looking for a Principal Product Designer to join our Ventures team in London. You’ll be the senior design voice on an early-stage product, taking it from first concept to a test-market launch and shaping it for global scale. About Ventures Ventures is DoorDash’s internal incubator, where we build the next generation of businesses adjacent to our core. We fund small teams with a strong sense of ownership and grow the investment as they hit clear milestones. Early on, teams build a Minimum Lovable Product and prove product-market fit in a single country. Successful initiatives graduate to new resources and new markets, with the chance to become the next billion-euro businesses at DoorDash. Ventures teams are scrappy and ambitious, chase goals that almost feel too ambitious, and thrive on a startup mentality and a high tolerance for ambiguity. We’re now placing bigger and more diverse bets than ever, and we need people with equal ambition and drive to build and scale, or sunset, some of our biggest experiments yet. What You’ll Be Doing Vision & Influence Define the design vision and strategy across several Ventures products, deciding what to build at product-area level and sequencing work across teams. Become an expert on local market

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Principal Software Engineer, Data Architecture Overview: Mastercard's Data & Analytics organization is seeking a visionary Principal Software Engineer, Data Architecture to define and advance our global enterprise data architecture strategy. Reporting to the Vice President of Data Engineering, this role will lead the design and evolution of strategic platforms that simplify how external data is securely exchanged with Mastercard and enable product teams, consultants, and analysts to more easily discover, access, and leverage enterprise data. The successful candidate will establish the architectural vision for platforms that transform complex, fragmented data processes into scalable, self-service experiences that accelerate innovation and unlock greater value from Mastercard's data assets. This position combines deep hands-on technical expertise with enterprise influence, driving architectural decisions that maximize the value of Mastercard's data assets while meeting the highest standards for security, resiliency, compliance, and operational excellence. Role: • Serve as the senior technical leader for enterprise data architecture, partnering closely with the VP and senior technology leadership. • Act as a trusted advisor to executive stakeholders, translating business strategy into scalabl

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. As a Principal Program Manager focused on Migrations, you will be driving new service opportunities related to migrating customer workloads to Snowflake, working with both customers and internal stakeholders. You will interact hand-in-hand with senior stakeholders on opportunities to improve our migration service and delivery. You will work across customer organizations and multiple Snowflake teams to ensure customers’ applications are successfully migrated, optimized for Snowflake, and scale to the needs of their business. Success is defined by the SDM's ability to develop a quality migration service strategy per customer, capture and report on key migration metrics, identify upsell opportunities related to migrations and Snowflake adoption, and quickly become the client’s trusted advisor on all things migration to Snowflake. AS A PROJECT MANAGER, YOU WILL: Be a project management expert on all aspects of migrations to Snowflake, including assessment, planning, execution, and optimization, across a variety of project and service types. Provide delivery quality oversight and guidance for migration engagements by assisting in the creation and execution of the overall vision for service delivery and client satisfaction, ensuring adherence to migration best practices. Own, man

About Eve Eve is redefining legal technology for plaintiff law firms, and we're building the team that will take us there. We help firms handle more cases, recover more for clients, and grow with AI that works across every stage of a case, from intake through resolution. The next generation of great plaintiff firms will be AI-Native, and Eve is how they get there. But what makes Eve different isn't just the product. It's how we build it. If you're someone who takes ownership, stays curious, and wants to build AI that's already changing how law is practiced, this is where you belong. Product-market fit: Eve is trusted by over 1000+ law firms, and we’re growing fast. Backed by top investors: We’ve raised over $160M from world-class partners including Spark Capital, Andreessen Horowitz(A16z), Menlo Ventures, and Lightspeed. Built by a world-class team: Engineers, designers, and operators from places like Scale, Meta, Airbnb, Cruise, Square, Rubrik, and Lyft are building Eve from the ground up. AI-Native from day one: We’re on the bleeding edge of AI, collaborating directly with teams at OpenAI and Anthropic to build best-in-class AI workflows tailored for legal work. Explosive growth: We are growing 2X revenue Quarter over Quarter. We're hiring a Principal Technical Recruiter to own hiring across Engineering, Product, and UX Design. You'll be a senior individual contributor and a strategic partner to our leadership team. You'll run full-cycle searches from intake to offer, and you'll also build the sourcing strategies, interview processes, and hiring playbooks that help us scale. You'll be especially important in competing for AI and machine learning talent. What You'll Do Run full-cycle recruiting for a broad range of roles across engineering (backend, frontend, infrastructure, security, data, mobile), product management, and product/UX design Partner with hiring managers and executives to define role requirements, calibrate on what

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 an Enterprise AV & Live Production Engineer to join our team. This is a Santa Clara, CA hybrid-based role, reporting to the Senior Director IT Operations, Digital Employee Experience in the IT Digital Employee Experience department. The Enterprise AV & Live Production Engineer provides end-to-end technical leadership for high-visibility corporate broadcasts, including executive broadcasts, earnings releases, and studio sessions. This role drives the operational readiness and maintenance of global meeting spaces while collaborating with IT, Marketing, and Facilities partners to maintain seamless hybrid collaboration and zero-downtime execution. What you’ll do (Role Expectations) Act as the hands-on technical owner for corporate conference rooms and collaborative spaces globally, maintaining high uptime, hardware readiness, and optimal AV fidelity through regular maintenance and rapid tr

We take play seriously. We’re looking for curious adventurers ready to find their party, fueled by imagination and drive to build what’s never been built before. At Hasbro and Wizards of the Coast, you’ll collaborate with passionate teams to reimagine our iconic brands and create experiences that spark joy, connection, and community through the magic of play. This is your chance to shape legendary play that lasts a lifetime. At Wizards of the Coast, we connect people around the world through play and imagination. From our genre-defining games like Magic: The Gathering® and Dungeons & Dragons® to our growing multiverse, we continue to innovate and build new ways to foster friendship and connection. That’s where you come in! We seek a Principal Network Engineer to serve as the technical lead for our enterprise network transformation. This is the highest-level individual contributor role on the Network Engineering team. You will design the Zero Trust Network Access framework, manage our Palo Alto Panorama environment, and make key decisions where complexity and security meet. You will work closely with the Senior Manager of Network & Cloud Infrastructure and partner with IAM, Cloud Infrastructure, and Security teams. Together, you will build a network that verifies identity, checks device posture, and enforces least privilege from edge to cloud! You will bring this project to a definitive close. What You'll Do: Act as the technical expert for the Network 2.0 ZTNA program — own the architecture, lead build reviews, establish engineering standards, and address any critical issues during implementation. Build and validate the full ZTNA architecture across all primary and international sites — defining network zones, segmentation policy, and device posture requirements that eliminate lateral movement risk. Manage Palo Alto Panorama at the platform level — template hierarchy, device group creation, policy distribution oversight, and configuration drif

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