Jobs in United States

Principle Human Factors Engineer in United States

562 active opportunities · Updated October 2026

Explore current principle human factors engineer jobs across United States. Filter by work mode, employment type, experience, department, date posted and distance.

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📍 San Mateo, CA, United States· Full-time
✓ High-confidence listingCompany trend -100%

From $293.8K/yr

Quick readStrong listing-quality and freshness signals

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 Enterprise Security Engineer, you will advance Roblox’s Enterprise Security strategy by shaping and evolving security architecture in alignment with business objectives. You will lead the design, deployment, and governance of security solutions that safeguard Roblox’s corporate infrastructure while enabling scalable, secure operations. Partnering cross-functionally with Corporate Engineering and Trust & Safety, you will translate organizational priorities into resilient security capabilities that balance risk, compliance, and productivity. You will join the Platform, Enterprise, and Application Security group, reporting directly to the Senior Manager of Enterprise Security Engineering. You'll partner with security professionals across the InfoSec team, and work cross-functionally with teams throughout Roblox to drive security initiatives that scale with our business. You will: Define and maintain enterprise-wide security standards and principles that guide how security is implemented across business workflows, ensuring consistency, scalability, and alignment with organizational risk posture. Lead and drive initiatives across core security domains, including Endpoint Secur

AWSGitAIGo
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📍 San Mateo, CA, United States· Full-time
✓ High-confidence listingCompany trend -100%

From $248.7K/yr

Quick readStrong listing-quality and freshness signals

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 DATA SCIENCE & ANALYTICS? The Data Science & Analytics organization's mission is to increase our speed, frequency, and acumen of our business decisions and to empower and scale product innovations. We cover a wide area of the data spectrum, including analytical data engineering, product analytics, experimentation, causal inference, statistical modeling, economics, and machine learning. Aligned and partnering with product groups, we use this vast tool belt to discover new opportunities and unmet use cases, influence and shape the product roadmap and prioritization, build data products and measure the impact / incrementality on our community of players, developers, and advertisers. WHY ADVERTISING SCIENCE? Advertising at Roblox is new, facing critical scale, effectiveness, and implementation challenges, while operating in our civility and user focused experiences. As a new strategic area, work will be innovative and impactful. Scientific rigor will be critical in success as we organize our data model, design principled measurement systems, and architect the future of incrementality measurement and actioning, to enable our communities. In this role, you will contribute to the new A

AWSGitMachine LearningAI
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📍 Massachusetts, New York, United States· Full-time
✓ High-confidence listingCompany trend -84.7%
Quick readStrong listing-quality and freshness signals

Datadog is looking for a Senior Product Manager to help lead the evolution of our fleet and lifecycle management capability, the product surface that gives customers visibility into, and control over, the observability software running across their infrastructure. This capability manages the deployment lifecycle for core observability agents and OpenTelemetry collectors running on customer hosts and containers. The Senior PM will expand the scope of fleet capability to additional Datadog software components, making it the single place customers go to see everything running in their environment, at any version, in any deployment model, and to manage it remotely and safely at scale, for both human operators and, increasingly, AI agents acting on their behalf. This is a high-visibility, cross-functional role. You'll partner with multiple engineering teams and be responsible for defining and delivering a coherent, unified fleet experience across UI, API, and MCP for customers. At Datadog, we place value in our office culture - the relationships and collaboration it builds, and the creativity it brings to the table. We operate as a hybrid workplace to ensure our Datadogs can create a work-life harmony that best fits them. What You'll Do Own and evolve the product vision and roadmap for a unified fleet and lifecycle management capability spanning multiple product lines and deployment models. Define what "managed" means for each new software component as it's brought into fleet, balancing consistency of experience with the realities of each component's operational model. Drive a phased expansion plan, sequencing new components into fleet based on customer value, technical complexity, and dependency readiness. Partner closely with engineering leads across several teams to align on shared architecture principles to support disparate software components. Represent the voice of the customer for a capability that must work equally well for human operators using a UI and for AI

KubernetesAIGoRust
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📍 San Francisco, California, United States· Full-time· Remote
✓ High-confidence listingCompany trend -80.2%
Quick readStrong listing-quality and freshness signals

About the role As a Pricing Strategist focused on GTM, you will help shape pricing strategy for B2B enterprise customers across our product portfolio. Working within Finance and partnering with GTM, Sales, and Product, you will focus on pricing analytics, price performance, and the effectiveness of credit programs while contributing to broader commercial strategy. In this role, you will Build regular pricing-performance reviews, analyze discounting and concessions, and turn findings into better pricing guidance. Develop commercial strategies and pricing programs for customer segments such as education, startups, and government. Define objectives and success measures for credit programs and promotions, and evaluate their return on investment. Translate segment goals and product pricing strategy into scalable pricing frameworks and commercial structures. Partner on strategic enterprise deals to align commercial proposals with sound deal economics and pricing strategy. You might thrive in this role if you Approach problems from first principles, identify root causes, and develop clear options for stakeholders. Work effectively through ambiguity and differing perspectives. Understand how sales organizations operate and collaborate well across GTM strategy, Finance, and Product. Bring relevant experience from consulting, strategy and operations, or pricing, particularly work involving analytical teams. Experience with pricing analytics, pricing frameworks, discounting guardrails, or new-product pricing is helpful, but a strictly pricing-specific background is not required. About OpenAI OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve our mission, we mu

Artificial IntelligenceAIFinance
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📍 United States· Full-time
✓ Quality checkedCompany trend -87.9%

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies—from the world’s largest enterprises to the most ambitious startups—use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone’s reach while doing the most important work of your career. About the team Brand Studio lays the foundations that help Stripe accelerate. We do this by creating, evolving, and maintaining Stripe's high-quality, versatile, and forward-looking brand design systems, experiences, and advertising campaigns. We sweat the details. We make it seem effortless. Motion is at the core of how we bring the brand to life—from live event stages to digital campaigns, motion design is our most expressive storytelling medium. What you’ll do Motion Designers at Stripe demonstrate a passion for the craft of movement and a deep understanding of how motion communicates brand character. You will be responsible for defining and advancing Stripe's motion language across event experiences, digital surfaces, and mainstage scenic and creative content. You work at the intersection of design systems and cinematic storytelling, creating motion frameworks that scale while still feeling intentional and human. The ideal candidate is technically fluent, conceptually strong, crisply articulates motion decisions, and collaborates seamlessly with creative directors, producers, marketers, and engineering partners. Responsibilities Execute motion design direction across Stripe's internal and external event experiences—from concept through final delivery Contribute to and maintain Stripe's motion design system: principles, timing tokens, animation guidelines, and reusable motion components Create high-quality motion graphics, title sequences, animated bran

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📍 San Francisco, California, United States· Full-time
✓ Quality checkedCompany trend -80.2%

About the Team The Personalization-Memory team, within OpenAI's broader Personal AGI organization, is focused on developing agents that can learn from prior interactions in order to become more helpful and efficient over time. We build general-purpose memory and personalization capabilities that transfer across ChatGPT and other agentic products, and we collaborate with applied engineering on the product surfaces that allow users to interact with memory. About the Role As a Research Engineer / Research Scientist on the Personalization-Memory team, you will research and develop improvements to memory usage and personalization in OpenAI's frontier models. Our team works on reinforcement learning, dataset creation, evaluations, and other post-training methods. We partner closely with research and product teams across the company to realize the vision of a truly personalized ChatGPT. We're looking for individuals who have a background in frontier model post-training, are able to iterate quickly, and who are passionate about product-driven research. This role is based in San Francisco, CA. We use a hybrid work model of 3 days in the office per week and offer relocation assistance to new employees. In this role, you will: Own and pursue a research agenda for improving memory use and personalization in frontier models. Build robust evaluations for tracking modeling improvements. Design, implement, test, and debug code across our research stack. Collaborate closely with the research and product teams to influence the shape of technical solutions in the product. You might thrive in this role if you: Are passionate about personalization and building personalized assistants. Have experience working with user signals and human data to turn feedback into reliable signals for training and evaluation. Have a deep understanding of frontier model post-training and machine learning applications. Value principled approaches and research craftsmanship. Are comfortable diving into a lar

AWSRestMachine LearningAI
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📍 San Francisco, California, United States· Full-time
✓ Quality checkedCompany trend -80.2%

About the Team The RL and Reasoning team drives the core reasoning paradigm and has created groundbreaking innovations such as o1 and o3. They focus on pushing the boundaries of reinforcement learning research, building next-generation generative models, and deploying them at scale. About the Role As a Research Engineer/Research Scientist at OpenAI, you will advance the frontier of AI alignment and capabilities through cutting-edge RL methods. Your work will sit at the heart of training intelligent, aligned, and general-purpose agents, including the systems that power various models. We’re looking for people who have a background in reinforcement learning research, are able to iterate quickly, and are proficient at coding. This role is based in San Francisco, CA. We use a hybrid work model of 3 days in the office per week and offer relocation assistance to new employees. You might thrive in this role if: You love being on the cutting edge of RL and language model research. You’re a self-starter who takes initiative and ownership of ideas, driving them to completion. You value principled approaches, simple experiments in tightly-controlled settings, and reaching trustworthy conclusions which stand the test of time. You thrive in a fast-paced, dynamic, and technically complex environment where rapid iteration is key. You’re comfortable diving into a large ML codebase to debug and improve it. You have a deep understanding of machine learning and machine learning applications. About OpenAI OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the ful

AWSRestMachine LearningAI
O
📍 San Francisco, California, United States· Full-time
✓ Quality checkedCompany trend -80.2%

About the Team Our team analyzes inference stack performance across the application, model, and fleet layers to identify bottlenecks and drive faster, cheaper inference. We combine systems profiling, benchmarking, and analysis to understand where time and cost are spent, then turn that understanding into performance optimizations and models that project performance and capacity needs for future launches. About the Role In this role, you will model inference performance across application, model, and fleet layers with higher fidelity. You will build cost-to-serve estimates from microbenchmarks and create tools that help cross-functional teams reason about latency, capacity, utilization, and cost tradeoffs. In this role, you will Build and refine performance models that translate microbenchmark results into cost-to-serve estimates. Analyze inference workloads end to end across applications, models, and fleet infrastructure. Enhance tooling to identify bottlenecks across layers for latency and throughput. Partner with other teams to turn performance insights into concrete improvements and project how future changes affect inference. You might thrive in this role if you: Enjoy reasoning from first principles about distributed systems, model inference, and hardware efficiency. Are comfortable working across abstraction layers, from application behavior to kernels, accelerators, networking, and fleet scheduling. Have deep expertise with performance profiling, benchmarking, analysis, and optimization. Enjoy collaborating with engineering and research teams to improve real production systems. About OpenAI OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve o

AWSRestAIRust
R
📍 San Mateo, CA, United States· Full-time
✓ High-confidence listingCompany trend -100%

From $295.3K/yr

Quick readStrong listing-quality and freshness signals

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. Join some of the best Graphics Engineers in the world supporting the largest immersive 3D streaming environment deployed across console, desktop, mobile, and VR. Scalability: Roblox provides a platform that guarantees to the creators that their games will always and automatically run on different devices, with cross-platform play and minimal load times. Compatibility: Roblox games and assets made in the past, are still working today. Rendering has to have an eye to the past, and an eye to the future… Community: Roblox games are made by creators of all experience levels, from professionals who earn their living on the platform to kids who are learning to program using Roblox! As a Rendering Engineer, you will solve difficult challenges, while continuing to build a high-speed, completely dynamic environments connected on all devices. Many established rendering techniques do not trivially apply to our platform - novel solutions are needed as we push Roblox towards higher targets of visual fidelity. Even the simpler visuals we support on low-power devices are enabled by some creative rendering ideas, often centered around caching, incremental computation and graceful degradation. All of this is

AWSGitRestAI
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📍 San Mateo, CA, United States· Full-time
✓ High-confidence listingCompany trend -100%

From $326.1K/yr

Quick readStrong listing-quality and freshness signals

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 Security Software Engineer, you will be reporting to the Manager of Application Security leading the Security Design and Review pod. You will play a pivotal role in shaping the growth of Information Security's (InfoSec) Application Security team, collaborating with engineering teams early in their processes to provide secure design solutions and establish security standards. Your responsibilities will include threat modeling, secure system design, automation, and penetration testing. As a key member of the team, you will drive company-wide projects across diverse tech stacks, working with engineering leaders to remediate security challenges. You will define and evolve the technical vision for scaling application security practices across the organization. You will: Lead company-wide security initiatives to address critical security challenges. Build and nurture cross-company relationships to achieve security objectives. Provide guidance on product security processes and standards. Define and expand partnerships with key engineering teams across Roblox. Apply critical thinking and analytical skills to develop security protocols and communicate effectively with stakeholders. Re

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📍 San Francisco, California, United States
✓ High-confidence listingCompany trend +66.7%
Quick readStrong listing-quality and freshness signals

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate with speed and urgency and execute with excellence. This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk. The Global Pricing Operations Team The Pricing Operations team works in a cross-functional, fast-paced, and dynamic environment with many moving pieces and evolving business needs. The team partners with Pricing Strategy Managers, Product Managers, Technology, Data & Intelligence, and various GTM teams to ensure Okta is operationally ready to bring new product pricing, buying programs, and strategic monetization initiatives to market. The Pricing Operations Principal Opportunity Okta is seeking a Pricing Operations Principal to lead initiatives that transform Okta's pricing strategy into successful go-to-market execution. A successful person in this role will be a strong collaborator, intensely curious, and supremely organized. They are known for connecting the dots, simplifying complexities, communicating clearly and proactively, and driving highly collaborative efforts to completion, even when the path forward isn't perfectly defined. In this role, you will serve as an operational leader for new pricing launches and a strategic buying-program implementation, establishing the integrated roadmap, operating cadence, decision-making framework, readiness criteria, and stakeholder communications required to bring these initiatives from concept through launch and sustained adoption. You will partner closely with senior cross-functional leaders to make complex tradeoffs, resolve dependencies, and ensure the business is ready to sell, quote,

Machine LearningArtificial IntelligenceAISalesforce
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📍 Bellevue, WA, United States· Full-time
✓ High-confidence listingCompany trend -91.7%
Quick readStrong listing-quality and freshness signals

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. Smartsheet is seeking a Principal Customer Success Manager who will focus on building high-value, strategic relationships with large, global customers. The role requires extensive experience in SaaS Customer Success, strong business acumen and exceptional communication skills. The Principal Customer Success Manager is expected to provide thought leadership and mentorship, as well as lead and/or contribute to special programs and projects (minimum of 10% per working week). For the right candidate, this is a career-defining opportunity to join the market leader in Collaborative Work Management (CWM) and help influence the future of Customer Success as a vocation. This role reports to a Sr. Manager of Sr. Customer Success and has flexibility to work remotely from the West Coast. You Will: Manage a diverse book of business at scale, with a focus and engagement, enablement and adoption. Understand your customer’s business model, go to market strategy and organizational structure. Create and execute internal territory engagement plans and/or external joint customer enablement plans that focus on tailored, customer-specific strategy, proactive risk mitigation, value realization and expansion. Use data to gain insights, provide guidance, increase customer adoption and identify opportunities for expansion. Lead or influence renewals, partnering with internal teams to form a cohesive approach to mitigate churn and support expansion. Positively impact revenue via early risk identification and mitigation strategies

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📍 Bellevue, WA, United States· Full-time
✓ High-confidence listingCompany trend -91.7%
Quick readStrong listing-quality and freshness signals

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. Smartsheet targets industries where workflow specificity is essential. As a Principal Product Marketing Manager, Vertical Industries, you will lead the strategic development of industry-specific value narratives, use case positioning, and sales-ready content for priority vertical, Manufacturing. In this role, you will own the GTM narrative, ensuring positioning is grounded in quantified, defensible value claims. This role requires deep industry curiosity, methodological discipline, and the ability to drive multiple complex workstreams in parallel to maintain Smartsheet’s competitive edge. This full-time position reports to the Sr. Director, Customer Value and can be located in our Bellevue, WA office, or you may work remotely from anywhere in the US where Smartsheet is a registered employer. What You Will Own: Value Strategy Execution — Vertical Industries Lead the team's execution of the Smartsheet Value Strategy process for priority verticals. Define positioning scope, including target segments, industry-specific buyer roles, KPIs, and competitor sets. Validate buyer value levers and map them to Smartsheet's capabilities to demonstrate differentiated, quantified benefits. Build vertical Value Impact Models and define the problem Smartsheet owns within each industry. Develop cross-functional Adoption Plans and validate position hypotheses through direct buyer sessions. ICP & CAPDB for Vertical Segments: Own ICP definition and target account prioritization for each priority vertical. Ensure each vertical ICP sp

VueAWSAIGo
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📍 Boston, Massachusetts, United States· Full-time
✓ High-confidence listing

From $143.9K/yr

Quick readStrong listing-quality and freshness signals

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. Hasbro is updating the way work is conducted across supply chain, go to market, finance, consumer products, and licensing. Our mature RPA practice on Automation Anywhere is now growing to include agentic AI. These systems interpret unstructured inputs, invoke tools, and perform complex workflows with human oversight where needed. We are looking for a Principal Automation Specialist to act as the senior technical expert in this initiative. This hands-on leadership role involves setting the architectural vision for our intelligent automation platform, building the most complex elements, and raising the team’s technical standards. Responsibilities As a Principal Automation Specialist, your responsibilities will include: Architect and build agentic automation: LLM-orchestrated workflows that combine deterministic RPA with reasoning based on data patterns, tool/API calling, and structured output. Extend our Automation Anywhere estate — migrate brittle, screen-scraped bots to API- and agent-based patterns and decide deliberately when a task should stay deterministic. Build the reliability layer that makes agents safe to run in production: evaluation harnesses, regression suites, confidence thresholds, human-in-the-loop approval gates, fallback paths, and audit logging. Own the integration surface — connect agents to ERP (SAP), data platforms, ticketing, and internal APIs via standardized tool interfaces (e.g., MCP servers, REST/GraphQL, event-driven triggers). Apply document and language intelligence to workflows that resisted cl

CI/CDRestGraphqlAI
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📍 California, United States· Full-time· Remote
✓ High-confidence listing

From $164.5K/yr

Quick readStrong listing-quality and freshness signals

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 160+ public exchanges globally and thousands of private exchanges 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 Production Engineer to join our team. This role is available as a hybrid opportunity 3 days a week in San Jose, CA or Remote reporting to Production Engineering in the Cloud Infrastructure & Operations department. Join Zscaler to be a force multiplier for the reliability of a global platform processing 200+ billion transactions daily across tens of millions of enterprise users. In this role, you will provide the technical vision and hands-on execution to drive an "automation-first" culture across the company. By maturing our observability and architectural standards, you will directly reduce our Mean Time to Mitigate (MTTM) and shape the scalability of our globally distributed, multi-cloud infrastructure. What you’ll do (Role Expectations) Design and implement highly available, scalable infrastructure across AWS, GCP, and bare-metal environments Drive an "automati

PythonAWSAzureGCP
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