{"id":1163658,"url":"https://alion.io/job/gilead-sciences-scientist-protein-therapeutics","title":"Scientist, Protein Therapeutics","company":{"id":8130,"name":"Gilead Sciences","domain":"gilead.com","url":"https://alion.io/company/gilead","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":88,"open_postings":14,"ghost_share":0,"stale_share":0.429,"repost_share":0.071,"time_to_fill_p50_days":41,"computed_at":"2026-10-21T05:46:15Z"}},"role":"Science & Research","role_family":"Science & Research","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Foster City, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":146540,"max":189640,"currency":"USD","period":"year","gross":null,"usd_annual":189640},"salary_estimate":null,"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"closed","first_seen_at":"2026-09-23T00:00:00Z","employer_posted_date":"2026-09-23","last_verified_at":"2026-09-28T12:52:14Z","board_verified":false,"closed_at":"2026-09-28T12:52:14Z","days_open":5,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":5},"description":"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.\nEvery 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.\nWe 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.\nJob Description\nGilead Sciences' Protein Therapeutics Department has an exciting opportunity for a highly motivated Scientist to join the Protein Science group. In this role, the successful candidate will support multidisciplinary research teams through the generation, purification, bioconjugation, and analytical characterization of biologic molecules. The ideal candidate will possess hands-on expertise and a strong scientific foundation in antibody purification, bioconjugation, and protein analytics. Working collaboratively with project teams, this individual will help advance therapeutic discovery programs by generating and characterizing candidate molecules and surrogate research tools. They will contribute to the evaluation and selection of lead candidates across a broad range of modalities, including bispecific antibodies, immunocytokines, antibody-drug conjugates (ADCs), and other novel and complex biologics. Through scientific problem-solving, technical innovation, and data-driven decision making, the candidate will help accelerate the progression of large-molecule therapeutics from discovery to development.\nResponsibilities:\nDesign and execute protein purification, bioconjugation, and analytical characterization workflows to support therapeutic protein discovery and development programs.\nDevelop, optimize, and troubleshoot purification and characterization methods for complex biologics.\nAnalyze and interpret experimental data, draw scientifically sound conclusions, and recommend next steps to advance project objectives.\nIdentify, evaluate, and implement new technologies and workflows to improve efficiency, throughput, and technical capabilities within the Protein Science group.\nCollaborate closely with therapeutic area biologists and cross-functional project teams to generate proteins and address project-specific scientific questions.\nServe as a technical resource within multidisciplinary teams, providing expertise in protein purification, bioconjugation, and protein analytics.\nPresent data and scientific findings to project teams and contribute to technical reports, invention disclosures, publications, presentations, and other scientific documentation.\nProvide technical training and mentorship to colleagues and support the development of departmental best practices.\nSkills\nStrong scientific foundation in protein sciences\nHands-on experience operating and programming ÄKTA Avant/Pure and/or Bio Rad NGC chromatography systems.\nExtensive experience in purification of biologic molecules using affinity chromatography (Protein A/G/L, CaptureSelect, Ni-NTA, etc.), ion exchange chromatography, size exclusion chromatography, hydrophobic interaction chromatography, and mixed-mode chromatography.\nExperience performing, analyzing, and interpreting quality and characterization assays for antibody-drug conjugates (ADCs).\nProficiency in bioconjugation methods for protein and antibody-based therapeutics.\nExpertise in protein analytical techniques including HPLC/UHPLC, SDS-PAGE, CE SDS, endotoxin testing (e.g., Endosafe), and SEC-MALS.\nWorking knowledge of construct design and molecular engineering for therapeutic proteins and surrogate tool molecules.\nStrong analytical, problem-solving, organizational, and communication skills, with the ability to interpret complex datasets and effectively communicate scientific findings.\nBasic Qualifications:\nBachelor's Degree and 6 Years’ Experience\nOR\nMasters' Degree and 4 Years’ Experience\nPreferred Qualifications:\nExperience with automated liquid handling and high-throughput protein purification platforms (e.g., Tecan).\nExperience with LC-MS characterization of biologics, including ADCs.\nExperience supporting the discovery and characterization of complex biologic modalities, such as bispecific antibodies, immunocytokines, and ADCs.\nThe salary range for this position is: $146,540.00 - $189,640.00. Gilead considers a variety of factors when determining base compensation, including experience, qualifications, and geographic location. These considerations mean actual compensation will vary. This position may also be eligible for a discretionary annual bonus, discretionary stock-based long-term incentives (eligibility may vary based on role), paid time off, and a benefits package. Benefits include company-sponsored medical, dental, vision, and life insurance plans*.For additional benefits information, visit:\nhttps://www.gilead.com/careers/compensation-benefits-and-wellbeing\n* Eligible employees may participate in benefit plans, subject to the terms and conditions of the applicable plans.\nFor jobs in the United States:\nGilead Sciences Inc. is committed to providing equal employment opportunities to all employees and applicants for employment, and is dedicated to fostering an inclusive work environment comprised of diverse perspectives, backgrounds, and experiences. Employment decisions regarding recruitment and selection will be made without discrimination based on race, color, religion, national origin, sex, age, sexual orientation, physical or mental disability, geneticinformation or characteristic, gender identity and expression, veteran status, or other non-job related characteristics or other prohibited grounds specified in applicable federal, state and local laws. In order to ensure reasonable accommodation for individuals protected by Section 503 of the Rehabilitation Act of 1973, the Vietnam Era Veterans' Readjustment Act of 1974, and Title I of the Americans with Disabilities Act of 1990, applicants who require accommodation in the job application process may contact  for assistance.\nFor more information about equal employment opportunity protections, please view the 'Know Your Rights' poster.\nNOTICE: EMPLOYEE POLYGRAPH PROTECTION ACT\nYOUR RIGHTS UNDER THE FAMILY AND MEDICAL LEAVE ACT\nGilead Sciences will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, (c) consistent with the legal duty to furnish information; or (d) otherwise protected by law.\nOur environment respects individual differences and recognizes each employee as an integral member of our company. Our workforce reflects these values and celebrates the individuals who make up our growing team.\nGilead provides a work environment free of harassment and prohibited conduct. We promote and support individual differences and diversity of thoughts and opinion.\nFor Current Gilead Employees and Contractors:\nPlease apply via the Internal Career Opportunities portal in Workday.","description_format":"text","description_chars":8287,"description_truncated":false,"requirements":{"experience_years_min":6,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Life insurance"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Prescription Drugs","Oncology Therapeutics","Infectious Disease Therapeutics"],"lifecycle":[{"event":"open","at":"2026-09-24T01:10:34Z"},{"event":"close","at":"2026-09-28T12:52:14Z"}],"visa":[],"liveness":null,"pay":{"stated_usd_annual":189640,"is_top_pay":true},"html_url":"https://alion.io/job/gilead-sciences-scientist-protein-therapeutics","json_url":"https://alion.io/job/gilead-sciences-scientist-protein-therapeutics.json","meta":{"generated_at":"2026-10-21T21:42:31Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":30912,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-22T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":8130},"rest":"https://alion.io/mcp/rest/get_company?id=8130"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fgilead-sciences-scientist-protein-therapeutics"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fgilead-sciences-scientist-protein-therapeutics"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fgilead-sciences-scientist-protein-therapeutics"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/gilead-sciences-scientist-protein-therapeutics\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fgilead-sciences-scientist-protein-therapeutics"}]}