Jobs in United States

Senior Scientist in California

54 active opportunities · Updated October 2026

Explore current senior scientist jobs in California. Filter by work mode, employment type, experience, department, date posted and distance.

G
📍 California, United States
✓ High-confidence listingCompany trend +190.5%

$157.6K – $203.9K/yr

Quick readStrong listing-quality and freshness signals

At Gilead, we’re creating a healthier world for all people. For more than 35 years, we’ve tackled diseases such as HIV, viral hepatitis, COVID-19 and cancer – working relentlessly to develop therapies that help improve lives and to ensure access to these therapies across the globe. We continue to fight against the world’s biggest health challenges, and our mission requires collaboration, determination and a relentless drive to make a difference. Every member of Gilead’s team plays a critical role in the discovery and development of life-changing scientific innovations. Our employees are our greatest asset as we work to achieve our bold ambitions, and we’re looking for the next wave of passionate and ambitious people ready to make a direct impact. We believe every employee deserves a great leader. People Leaders are the cornerstone to the employee experience at Gilead and Kite. As a people leader now or in the future, you are the key driver in evolving our culture and creating an environment where every employee feels included, developed and empowered to fulfil their aspirations. Join Gilead and help create possible, together. Job Description As a Senior Manager, Supplier Strategy and Management, Devices at Gilead you will own the business relationships with assigned suppliers of devices and device related components used with any Gilead branded product. This includes ownership of the strategy, selection, risk, and performance management of suppliers providing devices and device related components for development or commercial products. This role is responsible for both the strategic and tactical business management of these supplier relationships. You will have responsibility for indirectly leading and influencing others, bidding, selecting and managing multiple devices and device related components. This position is based at the

Project ManagementFinanceSupply ChainRecruitment
G
📍 California, United States
✓ High-confidence listingCompany trend +190.5%

$157.6K – $203.9K/yr

Quick readStrong listing-quality and freshness signals

At Gilead, we’re creating a healthier world for all people. For more than 35 years, we’ve tackled diseases such as HIV, viral hepatitis, COVID-19 and cancer – working relentlessly to develop therapies that help improve lives and to ensure access to these therapies across the globe. We continue to fight against the world’s biggest health challenges, and our mission requires collaboration, determination and a relentless drive to make a difference. Every member of Gilead’s team plays a critical role in the discovery and development of life-changing scientific innovations. Our employees are our greatest asset as we work to achieve our bold ambitions, and we’re looking for the next wave of passionate and ambitious people ready to make a direct impact. We believe every employee deserves a great leader. People Leaders are the cornerstone to the employee experience at Gilead and Kite. As a people leader now or in the future, you are the key driver in evolving our culture and creating an environment where every employee feels included, developed and empowered to fulfil their aspirations. Join Gilead and help create possible, together. Job Description This Data Platform Engineer will have the unique opportunity to apply cutting-edge data and analytics technologies to one of the most meaningful challenges in healthcare: ensuring the quality of medicines that improve and save lives. As a pivotal member of R&D Quality, this role will help transform how quality insights are generated, scaled, and acted upon across Gilead's drug development and clinical research programs. Through the development of robust data pipelines and advanced analytics platforms, the successful candidate will enable more proactive quality oversight, smarter decision-making, and continuous improvement, ultimately supporting Gilead's mission to deliver life-changing t

TypeScriptPythonSQLAWS
G
📍 California, United States
✓ High-confidence listingCompany trend +190.5%

$243.1K – $314.6K/yr

Quick readStrong listing-quality and freshness signals

At Gilead, we’re creating a healthier world for all people. For more than 35 years, we’ve tackled diseases such as HIV, viral hepatitis, COVID-19 and cancer – working relentlessly to develop therapies that help improve lives and to ensure access to these therapies across the globe. We continue to fight against the world’s biggest health challenges, and our mission requires collaboration, determination and a relentless drive to make a difference. Every member of Gilead’s team plays a critical role in the discovery and development of life-changing scientific innovations. Our employees are our greatest asset as we work to achieve our bold ambitions, and we’re looking for the next wave of passionate and ambitious people ready to make a direct impact. We believe every employee deserves a great leader. People Leaders are the cornerstone to the employee experience at Gilead and Kite. As a people leader now or in the future, you are the key driver in evolving our culture and creating an environment where every employee feels included, developed and empowered to fulfil their aspirations. Join Gilead and help create possible, together. Job Description At Gilead our pursuit of a healthier world for all people has yielded a cure for hepatitis C, revolutionary improvements in HIV treatment and prevention as well as advancements in therapies for viral and inflammatory diseases and certain cancers. We set and achieve bold ambitions in our fight against the world's most devastating diseases, united in our commitment to confronting the largest public health challenges of our day and improving the lives of patients for generations to come. As a Senior Director , Global Strategic Marketing Lead HIV Treatment at Gilead is a pivotal global commercial leadership role shaping the launch and long-term success of HIV Tre

ExcelRecruitment
G
📍 California, United States
✓ High-confidence listingCompany trend +190.5%

$117.9K – $152.6K/yr

Quick readStrong listing-quality and freshness signals

At Gilead, we’re creating a healthier world for all people. For more than 35 years, we’ve tackled diseases such as HIV, viral hepatitis, COVID-19 and cancer – working relentlessly to develop therapies that help improve lives and to ensure access to these therapies across the globe. We continue to fight against the world’s biggest health challenges, and our mission requires collaboration, determination and a relentless drive to make a difference. Every member of Gilead’s team plays a critical role in the discovery and development of life-changing scientific innovations. Our employees are our greatest asset as we work to achieve our bold ambitions, and we’re looking for the next wave of passionate and ambitious people ready to make a direct impact. We believe every employee deserves a great leader. People Leaders are the cornerstone to the employee experience at Gilead and Kite. As a people leader now or in the future, you are the key driver in evolving our culture and creating an environment where every employee feels included, developed and empowered to fulfil their aspirations. Join Gilead and help create possible, together. Job Description Senior Associate, Global External Manufacturing, (Oral Solid Dosage) works to ensure uninterrupted supply of Gilead’s clinical and commercial products through execution of manufacturing campaigns within our global external contract manufacturing network, while ensuring compliance with cGMP, regulatory requirements, and environmental, health, and safety legislations. This position is part of the Manufacturing Operations group within the larger Pharmaceutical Development and Manufacturing organization (PDM). This role requires collaboration with the Development, Quality, Regulatory, Analytical, Supply Chain, and Product & Portfolio Strategy organizations within PDM to ensure su

Supply ChainRecruitment
G
📍 California, United States
✓ Quality checkedCompany trend +190.5%

At Gilead, we’re creating a healthier world for all people. For more than 35 years, we’ve tackled diseases such as HIV, viral hepatitis, COVID-19 and cancer – working relentlessly to develop therapies that help improve lives and to ensure access to these therapies across the globe. We continue to fight against the world’s biggest health challenges, and our mission requires collaboration, determination and a relentless drive to make a difference. Every member of Gilead’s team plays a critical role in the discovery and development of life-changing scientific innovations. Our employees are our greatest asset as we work to achieve our bold ambitions, and we’re looking for the next wave of passionate and ambitious people ready to make a direct impact. We believe every employee deserves a great leader. People Leaders are the cornerstone to the employee experience at Gilead and Kite. As a people leader now or in the future, you are the key driver in evolving our culture and creating an environment where every employee feels included, developed and empowered to fulfil their aspirations. Join Gilead and help create possible, together. Job Description The Real-World Evidence (RWE) function at Gilead is part of the Clinical Data Sciences (CDS) group within the Clinical Development organization and aims to unlock the power of Real-World Data (RWD) to help transform innovations to life-changing medicines for patients. We are seeking a Senior Director, RWE Inflammation Product Lead who will be accountable for the development and execution of the RWE strategy in support of one or more Inflammation products under development. The incumbent will serve as the key RWE subject matter expert within Gilead's lifecycle management teams for the product(s) and all its indications across the development lifecycle and serve as a strategic

Recruitment
P
📍 California, United States· Remote
✓ High-confidence listingCompany trend +671.4%

$108.6K – $250.7K/yr

Quick readStrong listing-quality and freshness signals

Role Summary Pfizer Commercial Oncology is introducing the world to the next era of cancer care. With a growing portfolio of novel therapies, industry-leading R&D, and a goal of delivering eight breakthroughs by 2030 across major cancer types, we're translating cutting-edge science into market-shaping impact. Here, you'll partner with exceptional colleagues across scientific, medical, and manufacturing teams, backed by advanced digital and AI-enabled infrastructure and the authority to accelerate medicines from discovery to delivery. Guided by our values of courage, excellence, equity, and joy, you'll have the opportunity to stretch your skills and build a career that evolves with you—across teams, roles, and the Pfizer enterprise. Join us to make history — for patients, for their families, for the future. The Senior Oncology Account Specialist (SOAS) will have a variety of responsibilities, ranging from promoting Pfizer’s product portfolio to health care providers and specialists, to educating members of the healthcare community regarding the appropriate use of Pfizer products, to calling on accounts and organized customers to help improve patients’ experience with Pfizer products, as well as the overall quality of patient care delivered. The SOAS plays a critical role in increasing Pfizer’s brand with high-value target customers by linking an insightful assessment of the account and/or business landscape with a strong understanding of Pfizer’s products and resources. BASIC QUALIFICATIONS BA/BS Degree from an accredited institution BA/BS Degree from an accredited institution OR an associate’s degree with 8+ years of experience; OR a high school diploma (or equivalent) with 10+ years of relevant experience. Ability to travel domestically and stay overnight as necessary Valid US driver’s license and drivin

AIRecruitment
P
📍 California, United States
✓ High-confidence listingCompany trend +671.4%

$176.6K – $294.3K/yr

Quick readStrong listing-quality and freshness signals

ROLE SUMMARY As an AI-enabled strategic scientific leader, you will partner with Oncology Research Leadership to integrate AI-driven strategies that will drive data-informed decision-making across our Oncology Research pipeline. As the AI Portfolio Lead, you will bridge cutting-edge AI/advanced analytics with deep Oncology R&D expertise to guide our portfolio strategy. Working as an individual contributor reporting into the Head, Portfolio Strategy and Program Management, you will analyze and continuously assess Oncology Research projects using AI-driven insights (predictive models, scenario simulations, competitive intelligence) and propose actionable strategies to Oncology Research Leadership. This role is science-focused and spans across discovery and preclinical stage programs, ensuring that our project teams pursue the most promising scientific approaches and mechanisms of action. Your work will directly inform pipeline prioritization and resource allocation decisions, enhancing the quality and objectivity of governance deliberations with robust data. ROLE RESPONSIBILITIES Portfolio Analysis and Insights: Continuously analyze the oncology Research portfolio (ESD through Preclinical) using advanced AI/ML tools and analytics to evaluate each program’s scientific strength, probability of success, and strategic portfolio fit per disease area strategies. Strategy Recommendation: Develop and propose data-driven portfolio strategies (at both project and portfolio levels) to senior leaders and Research governance committee. Use scenario analysis and predictive modeling to highlight optimal project prioritization, pipeline balance, and resource allocation scenarios. AI-Enabled Decision Support: Integrate AI-derived insights (e.g. machine learning predictions, knowl

Machine LearningAIRecruitment
G
📍 California, United States
✓ High-confidence listingCompany trend +190.5%

$115.3K – $149.2K/yr

Quick readStrong listing-quality and freshness signals

We’re here for one reason and one reason only – to cure cancer. Every moment is dedicated to developing treatments and every action moves us one step closer to our goal. We’ve made incredible scientific breakthroughs and our pioneering personalized CAR T-cell therapies have changed the paradigm. But we're not finished yet. Join Kite, as we make even bigger advances in cancer therapies, and help shape where our business and medical science goes next. We believe every employee deserves a great leader. People Leaders are the cornerstone to the employee experience at Gilead and Kite. As a people leader now or in the future, you are the key driver in evolving our culture and creating an environment where every employee feels included, developed and empowered to fulfil their aspirations. Join Kite and help create more tomorrows. Job Description Position Summary The Senior IT Quality Engineering Specialist serves as the technical lead for the Kite Laboratory Information Management System (KLIMS) within North America West Coast (El Segundo). This role is responsible for the operational stability, compliance, maintenance, enhancement, and technical governance of the LabVantage platform and associated integrations. The position partners closely with Quality Control, Manufacturing, Validation, Infrastructure, and Kite Business stakeholders to ensure reliable and compliant laboratory operations. Key Responsibilities System Administration & Operational Support • Provide day-to-day administration and technical support for KLIMS and related

JavaSQLRecruitment
G
📍 California, United States
✓ Quality checkedCompany trend +190.5%

At Gilead, we’re creating a healthier world for all people. For more than 35 years, we’ve tackled diseases such as HIV, viral hepatitis, COVID-19 and cancer – working relentlessly to develop therapies that help improve lives and to ensure access to these therapies across the globe. We continue to fight against the world’s biggest health challenges, and our mission requires collaboration, determination and a relentless drive to make a difference. Every member of Gilead’s team plays a critical role in the discovery and development of life-changing scientific innovations. Our employees are our greatest asset as we work to achieve our bold ambitions, and we’re looking for the next wave of passionate and ambitious people ready to make a direct impact. We believe every employee deserves a great leader. People Leaders are the cornerstone to the employee experience at Gilead and Kite. As a people leader now or in the future, you are the key driver in evolving our culture and creating an environment where every employee feels included, developed and empowered to fulfil their aspirations. Join Gilead and help create possible, together. Job Description As the primary Public Affairs liaison to the R&D organization, the V ice P resident will develop and execute an integrated internal and external communications strategy that advances enterprise priorities, strengthens trust in our science, and enables business readiness for key pipeline and regulatory events. This leader will provide senior counsel to R&D and enterprise leaders on reputation and risk, set the operating model and governance for R&D communications globally, and build a high-performing team with deep scientific, regulatory, and issues-management expert

FinanceRecruitment
G
📍 California, United States
✓ High-confidence listingCompany trend +190.5%

$210.4K – $272.3K/yr

Quick readStrong listing-quality and freshness signals

At Gilead, we’re creating a healthier world for all people. For more than 35 years, we’ve tackled diseases such as HIV, viral hepatitis, COVID-19 and cancer – working relentlessly to develop therapies that help improve lives and to ensure access to these therapies across the globe. We continue to fight against the world’s biggest health challenges, and our mission requires collaboration, determination and a relentless drive to make a difference. Every member of Gilead’s team plays a critical role in the discovery and development of life-changing scientific innovations. Our employees are our greatest asset as we work to achieve our bold ambitions, and we’re looking for the next wave of passionate and ambitious people ready to make a direct impact. We believe every employee deserves a great leader. People Leaders are the cornerstone to the employee experience at Gilead and Kite. As a people leader now or in the future, you are the key driver in evolving our culture and creating an environment where every employee feels included, developed and empowered to fulfil their aspirations. Join Gilead and help create possible, together. Job Description At Gilead our pursuit of a healthier world for all people has yielded a cure for hepatitis C, revolutionary improvements in HIV treatment and prevention as well as advancements in therapies for viral and inflammatory diseases and certain cancers. We set and achieve bold ambitions in our fight against the world’s most devastating diseases, united in our commitment to confronting the largest public health challenges of our day and improving the lives of patients for generations to come. The Director, Quality Assurance – GMP Operations provides senior Quality leadership and direct quality oversight of Manufacturing and

Supply ChainWarehouseRecruitment
G
📍 California, United States
✓ High-confidence listingCompany trend +190.5%

$243.1K – $314.6K/yr

Quick readStrong listing-quality and freshness signals

At Gilead, we’re creating a healthier world for all people. For more than 35 years, we’ve tackled diseases such as HIV, viral hepatitis, COVID-19 and cancer – working relentlessly to develop therapies that help improve lives and to ensure access to these therapies across the globe. We continue to fight against the world’s biggest health challenges, and our mission requires collaboration, determination and a relentless drive to make a difference. Every member of Gilead’s team plays a critical role in the discovery and development of life-changing scientific innovations. Our employees are our greatest asset as we work to achieve our bold ambitions, and we’re looking for the next wave of passionate and ambitious people ready to make a direct impact. We believe every employee deserves a great leader. People Leaders are the cornerstone to the employee experience at Gilead and Kite. As a people leader now or in the future, you are the key driver in evolving our culture and creating an environment where every employee feels included, developed and empowered to fulfil their aspirations. Join Gilead and help create possible, together. Job Description The Oncology Business, Strategy, and Operations Lead will play a pivotal role in supporting the SVP of Oncology Clinical Development in building and executing the strategic vision for the Oncology Therapeutic Area (TA). As Gilead Oncology enters an exciting phase of growth and investment, this position offers the unique opportunity to collaborate directly with senior leadership to advance a world-class clinical development team, build the portfolio, and elevate oncology as a key focus area for Gilead. RESPONSIBILITIES As a member of the Oncology Leadership Team help to design and facilitate

RecruitmentHR
G
📍 California, United States
✓ High-confidence listingCompany trend +190.5%

$195.7K – $253.2K/yr

Quick readStrong listing-quality and freshness signals

At Gilead, we’re creating a healthier world for all people. For more than 35 years, we’ve tackled diseases such as HIV, viral hepatitis, COVID-19 and cancer – working relentlessly to develop therapies that help improve lives and to ensure access to these therapies across the globe. We continue to fight against the world’s biggest health challenges, and our mission requires collaboration, determination and a relentless drive to make a difference. Every member of Gilead’s team plays a critical role in the discovery and development of life-changing scientific innovations. Our employees are our greatest asset as we work to achieve our bold ambitions, and we’re looking for the next wave of passionate and ambitious people ready to make a direct impact. We believe every employee deserves a great leader. People Leaders are the cornerstone to the employee experience at Gilead and Kite. As a people leader now or in the future, you are the key driver in evolving our culture and creating an environment where every employee feels included, developed and empowered to fulfil their aspirations. Join Gilead and help create possible, together. Job Description As an Associate Director, Global Commercial Project Management at Gilead you will report to the Senior Director, Global Commercial Project Management and will serve as the project manager of early Commercialization and Commercialization Teams (eCTs / CTs). This role will lead strategic execution and support governance while coordinating cross-functional teams and initiatives to ensure successful delivery and operational execution of their teams’ priorities. This role will primarily support Gilead’s programs in Liver and Inflammation with the opportunity to support other therapeutic areas as needed. The successful candidate will be dynamic, with excellent project management capabi

AIProject ManagementPmpRecruitment
G
📍 California, United States
✓ High-confidence listingCompany trend +190.5%

$281K – $363.7K/yr

Quick readStrong listing-quality and freshness signals

At Gilead, we’re creating a healthier world for all people. For more than 35 years, we’ve tackled diseases such as HIV, viral hepatitis, COVID-19 and cancer – working relentlessly to develop therapies that help improve lives and to ensure access to these therapies across the globe. We continue to fight against the world’s biggest health challenges, and our mission requires collaboration, determination and a relentless drive to make a difference. Every member of Gilead’s team plays a critical role in the discovery and development of life-changing scientific innovations. Our employees are our greatest asset as we work to achieve our bold ambitions, and we’re looking for the next wave of passionate and ambitious people ready to make a direct impact. We believe every employee deserves a great leader. People Leaders are the cornerstone to the employee experience at Gilead and Kite. As a people leader now or in the future, you are the key driver in evolving our culture and creating an environment where every employee feels included, developed and empowered to fulfil their aspirations. Join Gilead and help create possible, together. Job Description At Gilead our pursuit of a healthier world for all people has yielded a cure for hepatitis C, revolutionary improvements in HIV treatment and prevention as well as advancements in therapies for viral and inflammatory diseases and certain cancers. We set and achieve bold ambitions in our fight against the world's most devastating diseases, united in our commitment to confronting the largest public health challenges of our day and improving the lives of patients for generations to come. As a Executive Director, HIV Treatment Integrated Insights , at Gilead you will serve as the senior strategic insights leader supporting the HIV Treatment Business Unit. Reporting to

Artificial IntelligenceAIFinanceRecruitment
G
📍 California, United States
✓ Quality checkedCompany trend +190.5%

$94.9K – $122.9K/yr

At Gilead, we’re creating a healthier world for all people. For more than 35 years, we’ve tackled diseases such as HIV, viral hepatitis, COVID-19 and cancer – working relentlessly to develop therapies that help improve lives and to ensure access to these therapies across the globe. We continue to fight against the world’s biggest health challenges, and our mission requires collaboration, determination and a relentless drive to make a difference. Every member of Gilead’s team plays a critical role in the discovery and development of life-changing scientific innovations. Our employees are our greatest asset as we work to achieve our bold ambitions, and we’re looking for the next wave of passionate and ambitious people ready to make a direct impact. We believe every employee deserves a great leader. People Leaders are the cornerstone to the employee experience at Gilead and Kite. As a people leader now or in the future, you are the key driver in evolving our culture and creating an environment where every employee feels included, developed and empowered to fulfil their aspirations. Join Gilead and help create possible, together. Job Description We are seeking a highly motivated, attentive, and self-driven candidate to join our team, Biologics Pivotal Formulation and Process Development, as a Senior Research Associate. Once onboarded, the successful candidate will contribute in developing formulation and drug product processes for innovative molecules in pivotal clinical and commercial stages. The candidate will have tremendous opportunities for career growth in a fast-paced and resource-rich environment through training and professional relationships. The ideal candidate is expected to be action oriented with high expectations of themselves and others. They should have good verbal and written communication interpersonal skills. <

ExcelRecruitment
G
📍 California, United States
✓ Quality checkedCompany trend +190.5%

$126.8K – $164.1K/yr

At Gilead, we’re creating a healthier world for all people. For more than 35 years, we’ve tackled diseases such as HIV, viral hepatitis, COVID-19 and cancer – working relentlessly to develop therapies that help improve lives and to ensure access to these therapies across the globe. We continue to fight against the world’s biggest health challenges, and our mission requires collaboration, determination and a relentless drive to make a difference. Every member of Gilead’s team plays a critical role in the discovery and development of life-changing scientific innovations. Our employees are our greatest asset as we work to achieve our bold ambitions, and we’re looking for the next wave of passionate and ambitious people ready to make a direct impact. We believe every employee deserves a great leader. People Leaders are the cornerstone to the employee experience at Gilead and Kite. As a people leader now or in the future, you are the key driver in evolving our culture and creating an environment where every employee feels included, developed and empowered to fulfil their aspirations. Join Gilead and help create possible, together. Job Description Specific Responsibilities and skills: Extensive knowledge and application of event planning principles, concepts, practices and industry standards. Ability to use a combination of logic, analysis and relevant experience to assess a situation and accurately define the problem and scope of the primary issue Analytical efficiency with ability to multi-task and meet timeliness and accuracy standards by anticipating resources necessary to complete the work Demonstrate influence with communicating persuasively with excellent verbal, written and interpersonal skills with ability to influence senior management and to establish effective working relationships with a

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