HR Business Partner at ReflectionAI | San Francisco

Our VisionAt ReflectionAI, we aim to create open superintelligence and ensure its availability to everyone. Our team, comprised of leading AI researchers and industry innovators from renowned organizations like DeepMind, OpenAI, Google Brain, Meta, and Character.AI, is on a mission to develop open-weight models that cater to individuals, agents, enterprises,…

Our VisionAt ReflectionAI, we are on a mission to develop open superintelligence and ensure its accessibility for everyone.We are creating open weight models tailored for individuals, agents, enterprises, and even nation-states. Our dedicated team comprises AI researchers and innovators from renowned organizations like DeepMind, OpenAI, Google Brain, Meta, Character.AI, Anthropic, and beyond.We are always eager to connect with exceptional individuals. If you resonate with our mission but do not find a suitable position listed, we encourage you to reach out to us.What We Provide:We believe that building truly open superintelligence requires a strong foundation. Joining ReflectionAI means being part of a small, highly skilled team where you will shape the future of the company and the landscape of open foundational models.We want you to engage in the most impactful work of your career, knowing that you and your loved ones are well-supported.Competitive Compensation: Attractive salary and equity designed to retain top talent globally.Comprehensive Health & Wellness: Extensive medical, dental, vision, life, and disability insurance.Family Support: Fully paid parental leave for all new parents, including those on adoptive and surrogate journeys. Financial assistance for family planning.Work-Life Balance: Generous paid time off when needed, relocation assistance, and various perks to enhance your time.Team Engagement Opportunities: Daily lunches and dinners provided, along with regular team off-sites and celebrations.

As an HR Business Partner at Adyen, you will play a pivotal role in shaping our talent strategy and driving employee engagement. We are looking for a dynamic individual with a strong background in human resources who can effectively partner with various teams to support organizational goals. You will develop and implement HR initiatives that foster a positive workplace culture and enhance employee performance.Your responsibilities will include advising leadership on HR matters, managing employee relations, and ensuring compliance with labor laws. You will also be involved in talent acquisition, performance management, and employee development programs.

Join our dynamic team at SquareTrade as an HR Business Partner, where you will play a crucial role in aligning our human resources initiatives with our business objectives. Your expertise will help foster a collaborative work environment, drive employee engagement, and support our growth strategies.In this role, you will partner with leadership to develop and execute HR strategies that enhance organizational effectiveness. You will provide guidance on talent management, employee relations, and performance management, ensuring that our people are our most valuable asset.

Join Our Team at Resolve AIAs the pioneering HR Business Partner at Resolve AI, you will be intimately involved with our Sales and Engineering teams, collaborating closely with our leadership and founders. Your role will be essential in crafting our organizational culture, designing structures, and refining people systems as we continue to grow and innovate.Your Role and ResponsibilitiesWork in tandem with Sales and Engineering leaders to align HR strategies with business objectives.Deliver comprehensive HRBP support across key departments, assisting managers and teams through phases of growth and transformation.Serve as a trusted advisor to team leaders, guiding them in performance management, feedback mechanisms, career progression, and effective leadership in a rapidly scaling environment.Lead initiatives focused on organizational health, including design, workforce planning, role clarity, and team effectiveness.Oversee vital HR programs for Sales and Engineering such as onboarding processes, performance evaluations, engagement surveys, and career development frameworks.Collaborate cross-departmentally with Recruiting, HR Operations, Finance, Legal, and IT to ensure a seamless and positive employee experience.Utilize data analytics to identify trends, highlight potential risks, and provide strategic recommendations to leadership.

At Thinking Machines Lab, our mission is to empower humanity by advancing collaborative general intelligence. We envision a future where everyone has access to the knowledge and tools necessary to leverage AI for their unique goals.Our team consists of scientists, engineers, and builders who have developed some of the most utilized AI products, such as ChatGPT and Character.ai, alongside open-weight models like Mistral and popular open-source projects including PyTorch, OpenAI Gym, Fairseq, and Segment Anything.HR Business PartnerThe HR Business Partner role is essential in empowering our team to thrive as we scale. You will be pivotal in coaching our leaders and designing people systems that align with our mission.As the HR Business Partner, you will facilitate leadership coaching and the design of performance management systems that foster growth and collaboration. You will support managers in enhancing team dynamics and personal development while building a scalable people infrastructure that includes performance feedback systems, compensation structures, and career frameworks.What You’ll DoProvide coaching to managers by observing their leadership styles, identifying strengths and areas for growth, and promoting continuous improvement.Advise leadership on organizational strategies, including team structure, succession planning, and strategic people decisions that influence our operational effectiveness.Develop compensation frameworks that attract top-tier machine learning talent while ensuring alignment with our core values and principles.Create career progression frameworks tailored for a research environment where growth often transcends traditional management roles and where contributions such as mentorship and expertise are valued.Establish feedback and evaluation mechanisms that prioritize personal improvement over mere assessment.

Our VisionAt ReflectionAI, we strive to create open superintelligence and ensure its accessibility for everyone.Our team is dedicated to developing open weight models for individuals, organizations, and even nations. Our collective expertise comes from leading AI institutions such as DeepMind, OpenAI, Google Brain, Meta, Character.AI, Anthropic, and more.Role OverviewConduct research and develop solutions focusing on algorithms, scaling laws, data processing, optimizers, and model architecture.Design and execute scientific experiments to enhance our understanding of scaling large language models and improving data efficiency.Apply cutting-edge techniques from the deep learning literature to our projects.Independently lead small research initiatives while collaborating on larger projects.Enhance our training infrastructure for optimal scaling efficiency.Contribute across the entire technology stack, from low-level optimizations to high-level model design.Your ProfilePossess a graduate degree (MS or PhD) in Computer Science, Machine Learning, or a related field.Demonstrate strong software engineering skills with experience in large-scale systems development.Have prior experience with large-scale ETL processes and preparing training data.Possess a deep understanding of large-scale machine learning, specifically regarding language models, distributed training, and scaling.Be proficient in Python and familiar with deep learning frameworks, preferably PyTorch.Effectively navigate the trade-offs between research goals and practical engineering challenges.Excel in a fast-paced, high-agency startup culture with a proactive approach.Exhibit strong communication skills and a collaborative mindset.Show a passion for pushing the boundaries of intelligence.What We Provide:We believe that building truly open superintelligence starts with a solid foundation. Joining ReflectionAI means being part of a tightly-knit, highly talented team, where you will help shape our future and redefine the landscape of open foundational models.

At Lever, we foster a culture of curiosity, innovation, and the freedom to explore. While we take our work seriously, we embrace a light-hearted approach to our environment and our interactions. Our passion, meticulous attention to detail, and commitment to the well-being of our team members cultivate a vibrant and generous workplace. This bold perspective is what distinguishes us.Our Human Resources teams are dedicated to nurturing talent, both at our corporate headquarters and remote locations. We genuinely believe that our employees are our greatest asset. Every day, we strive to equip our team with the knowledge and tools necessary not only to perform their jobs effectively but also to feel inspired and empowered in their work.

About Sprinter HealthAt Sprinter Health, we are dedicated to transforming healthcare access by enhancing the patient journey through innovative at-home services powered by cutting-edge technology.We are in search of a dynamic and proactive People Generalist who will play a crucial role in supporting our corporate team. This position promises immediate impact and offers unlimited potential for personal growth, influence, and professional development.We are constructing a comprehensive technology and clinical services framework to ensure that preventive and connected healthcare is accessible to everyone across the United States. Our hybrid care model (combining in-home and virtual services) leverages data products to reach over 60% of the US population across more than 15 states. With over 1 million patients served and a Net Promoter Score exceeding 92, we are rapidly expanding our impact. Our talented team of technologists, clinicians, and operational experts is supported by renowned investors such as a16z, General Catalyst, GV, and Accel, who have previously backed successful companies like Devoted Health, Livongo, and Airbnb.About the RoleWe are eager to welcome an experienced and resourceful People Generalist to aid in scaling and supporting our ever-growing corporate team. This high-impact position offers extensive involvement throughout the employee lifecycle, including onboarding, employee relations, offboarding, and more. You will act as a trusted advisor to leadership and collaborate closely with product, engineering, and operations teams to support essential initiatives that foster engagement, enhance performance, and drive business success. This is a pivotal role for someone who excels at the intersection of culture and strategy and is eager to enhance the employee experience across diverse cross-functional teams.What You'll DoBusiness Partnering: Serve as a strategic advisor to senior leaders across all corporate functions; guide managers on organizational design, team dynamics, performance management, and employee relations.Employee Experience: Take ownership of and continually enhance the employee lifecycle, from onboarding to offboarding, ensuring an inclusive and smooth experience.Performance & Development: Facilitate goal-setting cycles, performance evaluations, and career development initiatives; collaborate with leadership to cultivate high-performing and motivated teams.People Programs: Drive the implementation of various people programs that promote a positive workplace culture and enhance employee engagement.

At Hover, we empower individuals to design, enhance, and safeguard their cherished properties. Utilizing proprietary AI technology built on over a decade of real property data, we address fundamental questions such as “What will it look like?” and “What will it cost?” Our platform provides homeowners, contractors, and insurance professionals with precise, fully measured, and interactive 3D models of any property — all achievable through a smartphone scan in just minutes.Driven by curiosity, purpose, and a collective commitment to our customers, communities, and each other, we firmly believe that the most innovative ideas emerge from diverse perspectives. We take pride in fostering an inclusive, high-performance culture that promotes growth, accountability, and excellence. Supported by esteemed investors such as Google Ventures and Menlo Ventures, and trusted by industry leaders like Travelers, State Farm, and Nationwide, we are revolutionizing the way individuals comprehend and engage with their spaces.Why Hover Wants YouWe are looking for a Senior People Business Partner to act as a strategic advisor to leaders across Design, Operations, Product, and Engineering. This pivotal role is essential for evolving our people strategy in tandem with our business as we scale. You will work closely with senior leaders to shape organizational design, enhance leadership effectiveness, and integrate robust performance and change practices across teams — holding significant influence and a consistent seat at the decision-making table.Your ContributionsAs a strategic advisor to senior leaders across various departments, you will help navigate complexities, facilitate high-quality people decisions, and cultivate healthy, high-performing teams. Your role will involve diagnosing root causes, resolving ambiguous issues, and clarifying areas where expectations, roles, or workflows are not perfectly aligned. You will enhance leadership capabilities, improve decision-making processes, and anticipate the people implications of changes before they arise. This includes coaching managers, addressing performance challenges with precision, and guiding teams through transitional phases. Ultimately, your goal will be to assist leaders in creating sustainable systems rather than temporary fixes.In practice, your responsibilities will include:Collaborating with executives on organizational design, leadership effectiveness, and strategic people decisionsDiagnosing team and organizational challenges, and recommending actionable, systems-level solutionsCoaching leaders and managers through performance, development, and difficult conversationsLeading change management initiatives for organizational, strategy, and operating model transitionsEnhancing cross-functional alignment across Design, Operations, Product, and Engineering

At HoneyBook, we are at the forefront of revolutionizing business management for service-based professionals through our innovative AI-driven platform. Our tools are meticulously designed to empower independent entrepreneurs, enabling them to attract new clients, efficiently manage projects, and streamline payment processes, all while focusing on their craft. Since our inception in 2013, we have facilitated over 25 million client interactions and handled transactions exceeding $12 billion, helping businesses thrive with agility and intelligence.Our workplace culture is deeply rooted in five core values—collaboration, feedback, ownership, growth mindset, and putting people first. We believe that experience can take many forms and welcome diverse backgrounds. If you excel in a dynamic, intellectually stimulating environment and possess relevant experience, we encourage you to apply.About the Position:We are seeking a strategic Senior HR Business Partner to support our teams in the U.S. and play a crucial role in shaping HoneyBook’s culture and executing our people strategies. You will report directly to the Director of HRBP based in Tel Aviv.Your role will involve partnering with senior leadership to implement impactful initiatives that empower teams, drive growth, and embody our core values. At HoneyBook, our commitment to People First is not merely an HR philosophy—it's a foundational principle that guides our leadership and growth. This is an exceptional opportunity to join a mission-driven organization where people and culture are central to our success.This role requires a hybrid work arrangement, with three days per week in our San Francisco office.Responsibilities:Strategic Partnership: Collaborate with senior leaders to align business objectives with effective people strategies that enhance team health and performance.Organizational Change Leadership: Guide teams through organizational design, change management, and cultural transformation, ensuring clarity and smooth transitions.Employee Relations Advisory: Serve as a trusted advisor for employee concerns, supporting managers in navigating complex personnel matters with empathy and professionalism.

About the Role Statkraft is hiring an HR Advisor/HR Business Partner for a 12-month fixed-term contract based in San Francisco. This role works closely with leadership to support HR strategy and strengthen organizational effectiveness. The position focuses on building employee engagement and supporting Statkraft’s mission in sustainability and innovation.

Scale AI builds dependable AI systems to help people make important decisions. The Generative AI Operations team powers leading LLMs and generative models, focusing on Reinforcement Learning with Human Feedback (RLHF), human data generation, model evaluation, safety, and alignment. The team’s work shapes how society interacts with AI. Role Overview The HR Business Partner, Operations, will work closely with the Generative AI Operations team in San Francisco, CA or New York, NY. This role supports leaders and team members as the business grows. The position involves hands-on partnership with HR Operations, Recruiting, Finance, Legal, and IT to help the Operations team perform at its best. What You Will Do Advise and support the Generative AI Operations team on workforce matters as the organization scales Partner with leaders to address team needs and business objectives Collaborate with cross-functional groups such as HR Operations, Recruiting, Finance, Legal, and IT Help optimize team performance and contribute to a strong workplace culture About Scale AI Scale AI’s Generative AI Data Engine supports the development and safety of advanced AI models. The company’s mission centers on building reliable AI that benefits society.

Our MissionAt ReflectionAI, we are dedicated to creating open superintelligence and ensuring its accessibility for everyone.Our innovative open weight models cater to individuals, enterprises, agents, and nations. Our team includes AI experts and visionaries from renowned organizations like DeepMind, OpenAI, Google Brain, Meta, Character.AI, and Anthropic.About the RoleWe are seeking a dynamic Compensation Manager to oversee and enhance our compensation and benefits programs. You will ensure that our compensation practices are competitive, fair, and aligned with our business strategies while establishing scalable total rewards frameworks that support growth. This role involves implementing, refining, and maintaining Reflection’s Total Rewards philosophies. As you grow in this position, you will become a trusted advisor to executive stakeholders, shaping our approach to pay, equity, incentives, and market competitiveness.You will thrive in a fast-paced environment that values both speed and precision, skillfully balancing thorough risk assessment with pragmatic decision-making that keeps our business advancing.ResponsibilitiesCompensation OwnershipManage compensation bands, benchmarking, and pay governanceCollaborate on offer approvals and workforce planningMonitor internal equity and market competitivenessPerformance & Pay CyclesLead annual and off-cycle compensation review processesTranslate performance evaluations into merit and promotion decisionsProvide insightful compensation analytics to leadershipBenefits AdministrationOversee benefits programs in collaboration with our PEOEvaluate and recommend enhancements as we scaleAssist with future planning for a standalone benefits structureTotal Rewards IntegrationWork cross-functionally on equity and total rewards designMaintain a comprehensive view of cash and equity competitiveness

About CartesiaAt Cartesia, our vision is to revolutionize the landscape of artificial intelligence by creating interactive intelligence that is omnipresent and adaptable. We aim to overcome current limitations in processing vast streams of audio, video, and text data with our pioneering model architectures.Founded by PhD alumni from the Stanford AI Lab, we developed State Space Models (SSMs) as a breakthrough in training large-scale foundational models. Our dedicated team excels in model innovation, systems engineering, and product design, ensuring the delivery of advanced models and user experiences.Supported by top-tier investors such as Index Ventures and Lightspeed Venture Partners, alongside numerous industry experts and advisors, we are poised for significant growth and impact in the AI sector.About the RoleWe are seeking a dynamic HR Business Partner to lay the groundwork for our employee programs as Cartesia expands. This role provides an exceptional opportunity to influence the employee experience at a rapidly growing Series A AI startup. You will work closely with leadership to define and implement outstanding people operations practices.In this capacity, you will manage various aspects of human resources, including employee relations, organizational design, talent development, and learning initiatives. You'll have the freedom to create scalable systems and processes while fostering a culture that upholds Cartesia's core values.Your ImpactAct as a trusted advisor to leadership regarding organizational wellness, team dynamics, and strategic people initiatives.Provide confidential support to employees throughout their entire lifecycle, from onboarding to career development and offboarding.Collaborate with the recruiting team to ensure talent strategies align with long-term business objectives.Establish performance management systems and development programs that facilitate employee growth.Oversee compensation planning and strategy, including benchmarking, equity, and promotion cycles.Create and implement initiatives aimed at enhancing our internal company culture.

As an Executive Business Partner at Lyft, you will play a pivotal role in driving strategic initiatives and supporting executive leaders to ensure alignment with company goals. Your expertise will be instrumental in enhancing operational efficiency and fostering collaboration across departments.

About FaireFaire is a revolutionary online wholesale marketplace that champions local commerce. We believe in empowering independent retailers worldwide, enabling them to generate more revenue than industry giants like Walmart and Amazon combined. Our mission is to harness technology, data, and machine learning to connect a vibrant community of entrepreneurs globally. Imagine your favorite local boutique; we provide them with the best products from around the globe to enhance their offerings. By equipping small businesses with cutting-edge tools and insights, we aim to level the playing field against large corporations.In supporting the growth of independent businesses, Faire drives positive economic change in local communities worldwide. If you are smart, resourceful, and passionate about fostering community, we invite you to join our movement.About this RoleWe are seeking an outstanding HR Business Partner to join our People team and support our Technical Teams. In this pivotal role, you will collaborate closely with individual contributors, managers, and senior leaders on various people-related topics, encompassing employee relations, performance management, and engagement strategies. You will focus on organizational health, key metrics, and organizational design, providing support to both individual contributors and managers. The ideal candidate will possess a robust HR background, demonstrating exceptional organizational skills, critical thinking, and high emotional intelligence.

Role overview The Administrative Business Partner at Asana in San Francisco plays a key role in supporting daily team operations. This position manages calendars, organizes meetings, and assists with project management activities. Keeping schedules on track and ensuring timely coordination are central to the role. Strong organizational skills are essential. The Administrative Business Partner takes initiative to anticipate needs and helps maintain a collaborative workflow across the team. What you will do Maintain and organize team calendars Coordinate meetings and manage logistics Support project management tasks as needed Encourage smooth collaboration among team members Requirements Strong organizational abilities Proactive mindset Experience supporting teams or managing schedules

As a People Partner at Plaid, you will play an essential role in fostering a vibrant and inclusive workplace culture. You will work closely with various teams to align HR strategies with business goals, ensuring our employees are supported and engaged. Your expertise in employee relations, talent management, and organizational development will be pivotal in driving our mission to empower innovators and create a financial system that works for everyone.

At Thinking Machines Lab, we are on a mission to enhance humanity through the advancement of collaborative general intelligence. Our vision is to create a future where everyone has the opportunity to leverage AI tailored to their individual needs and aspirations.Our team comprises scientists, engineers, and innovators who have developed some of the most renowned AI products in the industry, such as ChatGPT, Character.ai, as well as open-weight models like Mistral and popular open-source projects including PyTorch, OpenAI Gym, Fairseq, and Segment Anything.About the RoleWe are seeking an Executive Business Partner to provide vital support to several technical leaders from our San Francisco office. Your role will be crucial in ensuring our team remains focused and organized by managing personal logistics and handling tasks that may otherwise be overlooked.This position is unique, requiring creativity and flexibility to adapt to various work styles and the dynamic challenges of a fast-paced startup environment. You will enjoy significant autonomy in decision-making without extensive supervision.What You’ll DoManage calendars, schedule meetings, and coordinate travel for 3-4 technical leaders.Act as the primary liaison between your supported leaders and other departments within the company.Assist with recruiting coordination efforts.Monitor projects and commitments to ensure nothing is overlooked.