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. ML Platform @ Roblox today supports hundreds of ML use cases and billions of inferences per day across Discovery, Safety, Engine, and much more. As a Model Optimization engineer on ML Platform, you will be responsible for digging deep into model internals to optimize performance, for both training and inference. We are looking for accomplished engineers to help us maximize performance of our platform. You Will: Optimize machine learning models for performance on GPU architectures, focusing on both training and inference workflows. Conduct low-level performance profiling analysis to identify bottlenecks in existing machine learning pipelines and propose actionable improvements. Contribute to the development of best practices and tooling for model optimization and deployment. Collaborate with cross-functional teams, including data scientists and software engineers, to integrate and deploy optimized models into production environments. Partner across organizations to build tooling, interfaces, and visualizations that make the ML@Roblox a delight to use. You Have: 6+ years of professional experience and a tool chest of system design experience upon which to draw to build performant system

About the Role: The Machine Learning team at Tubi drives the innovation behind personalized user experiences. With the largest inventory in the industry and hundreds of millions of viewers, we tackle problems in the space of recommendations, search, content understanding and ads optimization that shape the future of streaming. We are seeking a highly skilled Staff Machine Learning Engineer to contribute to transformative projects in video personalization. In this role, you will design and implement advanced algorithms and systems to improve our personalization strategy. As a senior technical expert, you will tackle complex problems in machine learning at scale, collaborating closely with cross-functional teams to develop and optimize machine learning-driven solutions. This is a hybrid role in our Toronto office. What You'll Do: Lead the design, development, and implementation of advanced recommendation systems and algorithms for a global audience Conduct deep dives into algorithmic components and systems, ensuring that models are optimized for both performance and scalability across multiple regions and product areas Build and deploy high-impact robust ML pipelines, including data extraction, feature development, model training, testing, and deployment Continuously monitor, evaluate, and optimize the performance of deployed models, ensuring they meet business goals and provide high-quality user experiences. Work closely with Product, Engineering, and Data Science teams to align on product requirements, set expectations, and deliver machine learning-driven solutions that improve user engagement Your Background: 8+ years of industry experience building production Machine Learning systems MSc or Ph.D. in Computer Science, Machine Learning, Statistics, Mathematics, or a related field Experience with deep learning technologies for recommendation systems, including TensorFlow, PyTorch, or similar frameworks Proficiency in building and deploying full-stack machine le

Here at Appian, our values of Intensity and Excellence define who we are. We set high standards and live up to them, ensuring that everything we do is done with care and quality. We approach every challenge with ambition and commitment, holding ourselves and each other accountable to achieve the best results. When you join Appian, you’ll be part of a passionate team dedicated to accomplishing hard things, together. Principal Consultant Location: Chennai, India | Work Model: In Office Our Customer Success team in Chennai serves as elite technical advisors for global enterprise teams. We bridge deep software architecture with business strategy, building scalable platform environments that leverage AI-Powered Process Automation to solve mission-critical operational challenges. As a Principal Technical Consultant , you will assume architectural leadership for multi-application platform design, execution, and performance optimization. Top engineering talent joins Appian in this role to move beyond basic application maintenance and ensure applications are resilient, scalable, and built to power mission-critical operations at enterprise scale . What You’ll Do Architect Platform Scalability: Build and maintain standards and tools to ensure high performance and resilience with a focus on reusability, schema optimization, data modeling , system performance, and responsive UX/UI . Engineered Integrations: Perform hands-on design, development, and code reviews using SQL views , stored procedures , and high-concurrency REST/SOAP web services/APIs . System-Level Troubleshooting: Rapidly isolate performance bottlenecks, memory leaks, resource contention, and latency spikes across the entire web application stack. Performance Analysis & Profiling: Analyze database execution plans, JVM/memory utilization, and Locust load test outputs to resolve root-cause architectural bottlenecks. Technical Communication & Enablement: Translate complex system diagnostics in

Managing Principal – Banking Transformation & Team Leadership (Chennai) Role Overview As a Managing Principal at Capco, you will be a senior leader responsible for driving client growth, leading complex transformation programmes, and shaping strategic direction across Tier 1 banking clients. You will combine deep domain expertise, delivery leadership, and commercial acumen to deliver measurable business outcomes. This role will play a critical leadership role in expanding Capco's footprint in India, working closely with APAC leadership to deliver large-scale banking transformation programmes and build sustainable, high-performing teams. Experience in workforce transformation and operating model optimisation would be advantageous. Key Responsibilities Client Leadership & Growth Build and manage C-level relationships across banking clients (WRB, Corporate, Operations, Technology). Support origination and closing large transformation deals (primarily in Operations & Technology). Define and lead account growth strategy, including pipeline development and GTM propositions. Act as a trusted advisor on banking transformation, operational excellence, and workforce strategy. Programme & Delivery Leadership Lead complex, multi-year transformation programmes across operations & technology. Drive design and implementation of target operating models, including process, technology, and workforce. Ensure delivery excellence through strong governance, risk management, and KPI tracking. Mobilise cross-functional teams (onshore/offshore) to deliver outcomes at scale. People & Practice Leadership Build and scale high-performing consulting teams in Chennai and broader India. Own capability development and workforce planning and support hiring aligned to growth ambitions. Mentor team and lead capability build across key areas (programme delivery, workforce management, operations). Commercial & Business Management Drive revenue growth, utilisation, and margin

About the Team Our Cyber team builds AI systems and products that help trusted defenders understand and respond to cyber threats while improving the safety and reliability of frontier models in security-sensitive settings. The team works across product engineering, model training, evaluations, safeguards, and deployment to make advanced cyber capabilities useful to defenders and responsibly managed. We collaborate closely with Safety/Preparedness, Research, Security, Legal, Communications, GTM, and external partners across OpenAI’s broader cyber work. About the Role We’re looking for research and software engineers to join Codex Cyber. You’ll help define and ship security products, work with trusted defenders and customers, shape model training and access patterns, and build research and evaluation systems for assessing cyber capabilities, validating safeguards, and improving training data. This role is hands-on and cross-functional, connecting product launches, model development, safety work, and real-world security use cases. In this role, you will: Help define and execute the technical roadmap for Codex Cyber’s security products, including evaluations, safeguards, trusted-defender workflows, and deployment decisions. Work with trusted defenders, customers, and partner teams to understand cyber use cases, evaluate risk, and turn feedback into product and research priorities. Shape cyber-specific model training and access patterns, including data, evaluations, validation, and deployment criteria. Build and validate systems for measuring cyber capabilities, monitoring misuse risk, and proving safeguards work in practice. Collaborate with Safety/Preparedness, Research, Security, Legal, Communications, Go-to-Market, and external partners on company-wide cyber priorities. Translate frontier cyber research into launch-ready tools, operational playbooks, and durable infrastructure for Codex and security products. You might thrive in this role if you: Enjoy 0 -> 1 envi

About the Team OpenAI's research training infrastructure powers how our frontier models are trained and evaluated. The Simulation team sits at the intersection between the agentic harness that powers OpenAI's products and the research infrastructure where GPT-next is trained, ensuring that our model's training environment is as realistic as possible. This team owns the integration layer that connects our production harness capabilities into the training stack. The work is highly cross-functional and high leverage: researchers depend on it to run experiments and evaluations reliably as well as to develop the next generation of harness capabilities. Failures in this surface can materially affect training velocity and correctness. About the Role We're looking for a Principal Software Engineer to lead the architecture and evolution of the Simulation Platform. You'll own a critical interface between research and engineering, building the systems, APIs, and operational patterns that let researchers use agentic coding infrastructure safely and effectively in training environments. This role is ideal for a senior backend or infrastructure engineer with strong technical judgment, product sense for highly technical users, and the ability to drive execution across multiple teams. The highest-leverage work is building robust infrastructure that supports and accelerates research without compromising engineering quality. In this role, you will Design, build, and evolve the integration between the Codex harness that powers OpenAI's products and research training infrastructure used for training GPT-next Build a platform for our LLMs to train and be evaluated in simulated environments that mimic their deployment setting as closely as possible, on every axis: agentic harness, compute substrate, timing, tools, data sources, humans in the loop, and more Own major integration surfaces end-to-end, from architecture and API design through rollout, operations, and long-term maintenance Bu

Here at Appian, our values of Intensity and Excellence define who we are. We set high standards and live up to them, ensuring that everything we do is done with care and quality. We approach every challenge with ambition and commitment, holding ourselves and each other accountable to achieve the best results. When you join Appian, you’ll be part of a passionate team dedicated to accomplishing hard things, together. Principal Solutions Consultant Redefine what it means to be a technical advisor by architecting mission-critical cloud solutions that power our nation's most vital public sector agencies. Location: McLean, Virginia, USA | Work Model: Onsite at Appian Headquarters Note: In accordance with Appian's McLean headquarters policy for this search profile, this position is full-time on-site. About the Team The Solutions Consulting organization at Appian sits at the vital center of our global commercial engine, bridging the gap between sophisticated enterprise business needs and cutting-edge platform capabilities to secure the technical win. Our mission is to prove the undeniable value of Appian’s platform within the AI-Powered Process Automation market, driving customer acquisition and fueling corporate growth. Under our SC 2.0 operating model, our consultants don't just demo features—they tell compelling stories, co-create solutions with customers, and help shape strategy with technical credibility and business insight. The Opportunity Ready to take your career to the next level alongside the smartest, most creative people in the tech industry? As a Principal Solutions Consultant, you will step into a highly visible, strategic role serving as the trusted advisor for federal agencies, partners, sales leadership, and product teams. This is a game-changing opportunity to own account strategy and technical orchestration for strategic opportunities, translating intricate agency requirements directly into groundbreaking technical solutions that fue

We are hiring senior engineers to work on the CUDA driver, a core component of our platform for accelerating general purpose computation on the GPU. Our team delivers features and improvements to better realize the potential of NVIDIA hardware for a growing range of computational workloads, ranging from deep learning, scientific computation, and self-driving cars to video games and virtual reality! CUDA defines a unified programming model across a range of system configurations and hardware capabilities. To accomplish this, the CUDA driver interacts with GPU hardware, kernel mode drivers, switches and the operating system. What you'll be doing: As a member of our team, you will use your design abilities, coding expertise, and creativity to deliver the best Compute platform in the world. You will craft elegant solutions to exciting problems and craft the future direction of CUDA as you collaborate with your peers across NVIDIA. You will evangelize, architect, and implement new CUDA features You'll oversee and drive development efforts across multiple teams Collaborate with members of hardware architecture teams Help define forward-looking improvements to the CUDA APIs and programming model Design and maintain performance and precision modeling Write effective, maintainable, and well-tested code Develop code for multiple operating systems What we need to see: Bachelor of Science or Master of Science degree in Computer Science, Electrical Engineering, or related field (or equivalent experience) 15&#43; years of relevant systems software development experience Strong C programming skills </

Here at Appian, our values of Intensity and Excellence define who we are. We set high standards and live up to them, ensuring that everything we do is done with care and quality. We approach every challenge with ambition and commitment, holding ourselves and each other accountable to achieve the best results. When you join Appian, you’ll be part of a passionate team dedicated to accomplishing hard things, together. Bring your passion for enterprise technology and strategic leadership to a team dedicated to accomplishing hard things. Shape the future of corporate modernization. Location: Mexico City, MX | Work Model: Hybrid About the Team Appian Customer Success is obsessed with delivering exceptional customer outcomes and driving mission-critical business impact. Grounded in our core values of Respect, Work to Impact, Ambition, and Constructive Dissent & Resolution, we act as elite technical advisors to our commercial clients. By joining this high-performance team, you will champion a culture of candid communication and excellence while accelerating global adoption of our AI-Powered Process Automation platform. The Opportunity As a Principal Technical Consultant, you will occupy a premier leadership position at the intersection of enterprise business strategy and complex technical delivery. This role is vital right now because you won’t just execute projects—you will define how they are delivered. You will partner directly with Appian Architects and Technical Delivery Managers, lead large-scale consulting initiatives, and serve as a vital mentor to the next generation of engineers, ensuring our clients achieve world-class Enterprise-Grade Orchestration . What You’ll Do Lead Enterprise Delivery: Command the entire software development lifecycle ( SDLC ) to define, design, and implement custom automation solutions using the Appian platform for major commercial clients. Direct High-Performing Teams: Lead and mentor consultants through fast-paced software imp

Leite die Transformation im Core Banking, indem Du Zielbilder definierst, die Umsetzung gestaltest und Senior-Stakeholder aufeinander abstimmst. Deine Rolle Als Principal Consultant – Business Analyst im Bereich Core Banking übernimmst Du die Leitung von Anforderungsanalyse und Prozessdesign in komplexen Transformationsprogrammen führender Finanzinstitute. Du verbindest tiefgehende Core-Banking-Expertise mit ausgeprägter Beratungskompetenz, um Zielarchitekturen zu definieren, Umsetzungsentscheidungen zu steuern und Führungskräfte auf Kundenseite durch umfassende Veränderungsprozesse zu begleiten. Diese Rolle erfordert sowohl strategisches Denken als auch hohe Umsetzungskompetenz. Deine Aufgaben Leitung der Business-Analyse in komplexen Initiativen rund um Core-Banking-Transformation, Produktmodernisierung und Operating-Model-Neugestaltung Definition von Vorgehensweisen für Anforderungen, Zielprozessen und funktionalem Umfang über mehrere Business- und Technologie-Streams hinweg Moderation von Workshops mit Senior-Stakeholdern zur Abstimmung von Designentscheidungen, Priorisierung und Umsetzungsplanung Führung und Qualitätssicherung von BA-Teams zur Sicherstellung konsistenter Dokumentation, Nachverfolgbarkeit und Umsetzungsreife Beitrag zu Beratungsprojekten durch Lösungsentwicklung, Kundenbeziehungsmanagement und Weiterentwicklung von Angeboten Dein Profil Langjährige Erfahrung in Business Analyse, Beratung oder Transformation im Bankenumfeld mit starkem Fokus auf Core Banking Tiefgehendes Verständnis von Core-Banking-Produkten, Prozessen und Plattformkonzepten (Einlagen, Kreditgeschäft, Kundenservice, Produktkonfiguration) Erfahrung in der Zusammenarbeit mit internationalen und funktionsübergreifenden Teams in einem globalen Umfeld Hohe Eigeninitiative sowie eine selbstständige und proaktive Arbeitsweise Erfahrung in der Leitung von Analyse-Workstreams in großen Transformationsprogrammen (z. B. Softwareauswahl, Plattformimplementierung oder Migration) Fähig

Leite strategische Transformationen im Kreditgeschäft, indem Du Anforderungen, Zielprozesse und Stakeholder-Abstimmung auf höchstem Niveau gestaltest. Deine Rolle Als Principal Consultant – Business Analyst im Bereich Credit & Capital Management übernimmst Du die Leitung des Analyse-Workstreams in großen Transformationsprogrammen für internationale Bankkunden. Du verbindest fundierte fachliche Expertise mit Beratungsstärke, um Lösungsansätze zu definieren, bestehende Prozesse kritisch zu hinterfragen und Konsens auf Senior-Stakeholder-Ebene herzustellen. Diese Rolle eignet sich für erfahrene Fachkräfte, die sowohl strategisch als auch in der Umsetzung agieren. Deine Aufgaben Leitung der Business-Analyse in komplexen Initiativen rund um Kreditprozess-Transformation, Kapitaloptimierung und Operating Model Veränderungen Verantwortung für Anforderungsstrategie, Zielprozessdesign und Nachverfolgbarkeit über Business-, Risiko-, Operations-, Daten- und Technologieteams hinweg Moderation von Workshops mit Senior-Stakeholdern zur Priorisierung, Klärung von Anforderungen und Abstimmung von Umsetzungsentscheidungen Sicherstellung von Qualitätsstandards sowie Coaching von Business-Analysten zur Gewährleistung konsistenter Ergebnisse und Deliverables Beitrag zur Gesamtprojektumsetzung durch Lösungsdesign, Stakeholder-Management und fachliche Impulse im Bereich Kredittransformation Dein Profil Langjährige Erfahrung in Business Analyse, Beratung oder Transformationsrollen im Finanzdienstleistungsumfeld mit starkem Fokus auf Kredit- und Kapitalmanagement Tiefgehendes Verständnis von Kreditprozessen (Origination, Underwriting, Genehmigung, Betreuung, Problemkreditmanagement und regulatorisches Reporting) Fundierte Kenntnisse in Kapitalmanagement und regulatorischen Themen wie Basel, RWA, Risikovorsorge oder Stresstests Nachgewiesene Erfahrung in der Leitung von Analyse-Workstreams in groß angelegten Transformationsprogrammen sowie in der Zusammenarbeit mit Senior-Stakehol

At Vanta, our mission is to help businesses earn and prove trust. We believe that security should be monitored and verified continuously, and we empower companies to practice better security and prove it with ease. Vanta has a kind and talented team, and while some have prior security experience, many have been successful at Vanta without it. Vanta's Governance and Compliance platform is the operating layer enterprises trust to run their security programs. We are hiring an engineer who will own the architectural foundation that makes it work for their most complex organizational structures. Program Structure and Trust is a newly chartered group at Vanta with a focused mission: build the enterprise org model that lets customers bring their compliance and security structure — product lines, business units, isolated data environments, cross-cutting audits, scoped approvals, and data residency requirements — natively into the platform. The problems this team solves determine whether Vanta can serve the enterprise customers it's increasingly winning. This is the defining technical role of the group. The Principal Engineer owns the design, phased delivery, and long-term technical direction of Vanta's enterprise org model — a multi-quarter initiative that cuts across the platform and establishes the foundation for how enterprise customers structure, segment, and operate inside Vanta. Visit our Vanta Engineering Blog to learn more about what our team is working on! What you’ll do as a Principal Engineer at Vanta: Own the design and multi-quarter delivery of Vanta's enterprise org model, including hierarchical product lines and business units, isolated data access and ownership, cross-cutting audit workflows, scoped approvals, and EU and GovCloud data residency support Define and evolve the core abstractions that let the platform absorb structurally diverse, often conflicting enterprise requirements — solving for the general case rather than one-off customer accommodations R

At Vanta, our mission is to help businesses earn and prove trust. We believe that security should be monitored and verified continuously, and we empower companies to practice better security and prove it with ease. Vanta has a kind and talented team, and while some have prior security experience, many have been successful at Vanta without it. Vanta's Governance and Compliance platform is the operating layer enterprises trust to run their security programs. We are hiring an engineer who will own the architectural foundation that makes it work for their most complex organizational structures. Program Structure and Trust is a newly chartered group at Vanta with a focused mission: build the enterprise org model that lets customers bring their compliance and security structure — product lines, business units, isolated data environments, cross-cutting audits, scoped approvals, and data residency requirements — natively into the platform. The problems this team solves determine whether Vanta can serve the enterprise customers it's increasingly winning. This is the defining technical role of the group. The Principal Engineer owns the design, phased delivery, and long-term technical direction of Vanta's enterprise org model — a multi-quarter initiative that cuts across the platform and establishes the foundation for how enterprise customers structure, segment, and operate inside Vanta. Visit our Vanta Engineering Blog to learn more about what our team is working on! What you’ll do as a Principal Engineer at Vanta: Own the design and multi-quarter delivery of Vanta's enterprise org model, including hierarchical product lines and business units, isolated data access and ownership, cross-cutting audit workflows, scoped approvals, and EU and GovCloud data residency support Define and evolve the core abstractions that let the platform absorb structurally diverse, often conflicting enterprise requirements — solving for the general case rather than one-off customer accommodations R

Become a part of our caring community Every large organization is making critical decisions today about how it will leverage AI over the next decade. Few have leaders who can both define that vision and demonstrate its viability through hands-on engineering. This role requires both. We build the platform that transforms millions of clinical documents into trusted, actionable data. Our systems use large language models (LLMs) to read medical records, extract structured facts, answer complex questions with citations to source documents, and route difficult cases to human experts. These capabilities support decisions that impact real healthcare outcomes for members. As a Principal AI Applied Engineer, you will define the technical strategy, architectural standards, and long-term vision for AI-enabled products across the organization. You will influence enterprise-wide decisions regarding AI platforms, model strategies, engineering standards, and technology investments while remaining deeply hands-on in prototyping, experimentation, architecture, and software development. This is the highest-level individual contributor role within the AI Applied Engineering organization. Success requires exceptional technical depth, organizational influence, strategic thinking, and the ability to translate emerging AI capabilities into scalable, reliable, and responsible production systems. Why Join Us Shape the long-term AI architecture and engineering direction for a large enterprise healthcare organization. Influence how AI-enabled products are designed, built, evaluated, deployed, and governed across multiple teams. Drive strategic decisions involving models, vendors, platforms, infrastructure, and shared capabilities. Prototype and validate emerging technologies before the organization invests at scale.</

At ClickUp, we're building the future of work: the first truly converged AI workspace unifying tasks, docs, chat, calendar, and enterprise search, all supercharged by context-driven AI. We are an AI-native company. Every team member is expected to leverage AI daily, and we evaluate AI fluency as part of our hiring process. Join us and help redefine what's possible. 🚀 We’re hiring a highly influential product analytics leader who can turn ambiguous questions into sharp insight, scalable measurement, and recommendations that directly shape what we build. This person will partner closely with Product, Engineering, Design, and Growth to raise the bar on decision quality and establish a more AI-native analytics operating model. Mission Drive the product insight agenda by helping ClickUp make faster, smarter product decisions through rigorous analysis, strong product judgment, and AI-enabled analytics workflows. What You'll Do Own the product analytics agenda across product usage, activation, feature adoption, retention, and expansion, and translate open-ended business questions into structured analyses and clear recommendations Partner with Product, Engineering, and Design to define success metrics early, improve instrumentation quality, and ensure important product surfaces are measurable from launch Build reusable analysis frameworks, semantic layers, metric definitions, and self-serve resources that help product teams answer routine questions faster and more consistently Apply AI-first methods across the analytics workflow, using large language models, coding agents, and automation for tasks like query drafting, QA, validation, documentation, and first-pass synthesis while keeping human judgment at the center of final recommendations Design and interpret experiments, observational analyses, and trend investigations, including situations where data is incomplete or traditional experimentation is not feasible Surface meaningful patterns in behavioral, subscription, and