{"id":1661318,"url":"https://alion.io/job/vaxcyte-associate-scientist-ii-immunoassay-development-2","title":"Associate Scientist II, Immunoassay Development","company":{"id":685268,"name":"Vaxcyte","domain":"vaxcyte.com","url":"https://alion.io/company/vaxcyte","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":92,"open_postings":35,"ghost_share":0,"stale_share":0.114,"repost_share":0,"time_to_fill_p50_days":83,"computed_at":"2026-10-20T05:45:00Z"}},"role":"Science & Research","role_family":"Science & Research","seniority":"junior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Carlos, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":105000,"max":123000,"currency":"USD","period":"year","gross":null,"usd_annual":123000},"salary_estimate":null,"experience_years_min":2,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[],"status":"live","first_seen_at":"2026-10-01T23:43:31Z","employer_posted_date":"2026-10-01","last_verified_at":"2026-10-21T01:07:28Z","board_verified":true,"closed_at":null,"days_open":19,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":18},"description":"Join our Mission to Protect Humankind!\nVaxcyte is a clinical-stage vaccine innovation company engineering high-fidelity vaccines to protect humankind from the consequences of bacterial diseases, which have serious and costly health consequences when left unchecked. Working to eradicate or treat bacterial infections such as invasive pneumococcal disease, Group A Strep, and Shigella is just the beginning. Our path to success is clear and well-defined, and Vaxcyte is set up to go the distance. \nWHAT we do is every bit as important as HOW we do it! Our work together is guided by four enduring core values:\n*RETHINK CONVENTION: We bring creative and intellectual diversity to every facet of the work we do in order to innovate and re-innovate the way vaccines are delivered.\n*AIM HIGH: We embody our collectively audacious goal to courageously make the most complex biologics ever attempted to protect humankind.\n*LEAD WITH HEART: Everyone leads at Vaxcyte with a kindness-first, inclusive approach to collaboration and vigorous debate that advances our business objectives.\n*MODEL EXCELLENCE: The magnitude of our challenge requires our shared commitment to demonstrating integrity, accountability, equality and clarity across communications and decision making.\nSummary:\nVaxcyte is seeking an accomplished Associate Scientist II, Immunoassay Development to join the CMC Immunoassay group. This role will provide scientific and strategic leadership for the development, qualification, characterization, governance, and lifecycle management of critical reagents and reference materials that support immunoassays across Vaxcyte's vaccine pipeline.\nThe Associate Scientist will work closely with scientists, senior scientists, and laboratory leaders to execute immunoassays, support fit-for-purpose method development, assist with troubleshooting studies, and contribute to high-quality laboratory documentation and data integrity.\nEssential Functions:\nPerform hands-on assay execution to support immunoassay development, optimization, platform evaluation, routine testing, method transfer support, and under direct supervision, validation readiness, and lifecycle activities.\nEngage daily in laboratory operations, including reagent preparation, sample handling, plate or bead preparation, instrument operation, assay setup, data capture, documentation, and laboratory organization.\nExecute immunoassays supporting potency, antigenicity, identity, impurity, characterization, comparability, release, stability, and development-stage analytical needs.\nSupport experiments using ELISA, MSD, bead-based assays, multiplex assays, electrochemiluminescence-based assays, or other ligand-binding assay formats.\nPrepare reagents, buffers, samples, plates, beads, assay controls, reference materials, and other materials required for immunoassay testing.\nGenerate and summarize assay data, including standard curves, sample response, dilution response, recovery, precision, assay controls, and system suitability results.\nUnder direction of a Scientist or Sr. Scientist, support troubleshooting studies by executing experiments, documenting observations, organizing data, and communicating findings to scientists and project leads.\nSupport critical reagent and reference material activities, including aliquoting, labeling, inventory tracking, reagent screening, lot comparison, stability study support, and qualification-support testing.\nMaintain accurate and timely laboratory documentation, including ELN entries, assay worksheets, reagent records, sample records, and data summaries.\nSupport laboratory readiness, including consumable tracking, instrument use coordination, sample tracking, safety compliance, and good laboratory practices.\nRequirements: \nBS. in Biochemistry, Immunology, Analytical Chemistry, Biological Sciences, or a related discipline with a minimum of 2 years of relevant biopharmaceutical industry laboratory experience; or M.S. in a related discipline with minimum 1 year of relevant biopharmaceutical industry laboratory experience.\nHands-on laboratory experience with immunoassays, ligand-binding assays, analytical testing, bioanalytical testing, or related biological assay workflows.\nExperience with assay execution, reagent preparation, sample preparation, plate-based or bead-based assay setup, instrument operation, data analysis, assay controls, and documentation.\nFamiliarity with immunoassay platforms such as ELISA, MSD, electrochemiluminescence-based assays, bead-based assays, multiplex assays, or other ligand-binding assay technologies.\nAbility to follow protocols, execute experiments carefully, document work accurately, and communicate observations clearly.\nStrong attention to detail and commitment to laboratory safety, data integrity, documentation quality, and scientific excellence.\nAbility to manage multiple laboratory tasks, samples, reagents, and timelines in a fast-paced environment.\nReports to: Director, Immunoassay Development\nLocation: San Carlos, CA\nWork Arrangement (may be adjusted based on business needs, job responsibilities, or changes to company policy): \nOnsite (minimum of 4 days per week onsite) \nCompensation:\nThe compensation package will be competitive and includes comprehensive benefits and an equity component.\nSalary Range: $105,000 - $123,000 (SF Bay Area).\nEqual Opportunity\nWe are an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status.\nRecruitment Fraud Notice\nPlease be aware of fraud or scams from individuals, organizations and/or internet sites claiming to represent Vaxcyte in recruitment activities. Vaxcyte has an established recruitment process for all positions prior to issuing an offer for employment and we will never extend unsolicited employment offers or ask candidates to provide financial or sensitive personal information as part of the application process. All legitimate communication from Vaxcyte will come from an official @vaxcyte.com email address. Qualified and interested candidates should apply to current openings at vaxcyte.com/careers.","description_format":"text","description_chars":6213,"description_truncated":false,"requirements":{"experience_years_min":2,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Diagnostic Tests & IVD","Drug Discovery","Vaccines"],"lifecycle":[{"event":"open","at":"2026-10-02T03:50:03Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 9 · green card filings: 2","filings_12m":9,"filings_prev_12m":11,"green_card_filings_12m":2,"median_offered_wage_usd":172955,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":0}],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":18,"expected_fill_days":83,"reasons":["conf:1","win:early","comp:junior"],"computed_at":"2026-10-20T05:45:00Z"},"pay":{"stated_usd_annual":123000,"is_top_pay":true},"html_url":"https://alion.io/job/vaxcyte-associate-scientist-ii-immunoassay-development-2","json_url":"https://alion.io/job/vaxcyte-associate-scientist-ii-immunoassay-development-2.json","meta":{"generated_at":"2026-10-21T03:15:57Z","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":4836,"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":685268},"rest":"https://alion.io/mcp/rest/get_company?id=685268"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fvaxcyte-associate-scientist-ii-immunoassay-development-2"},{"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%2Fvaxcyte-associate-scientist-ii-immunoassay-development-2"},{"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%2Fvaxcyte-associate-scientist-ii-immunoassay-development-2"},{"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/vaxcyte-associate-scientist-ii-immunoassay-development-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fvaxcyte-associate-scientist-ii-immunoassay-development-2"}]}