Jobs / United States / Glaxosmithkline LLC
Scientist/Sr. Scientist - Bioassay Development, Validation and Tech Transfer
Glaxosmithkline LLC · 🇺🇸 USA - Pennsylvania - Upper Providence
Sponsorship verdict
Sponsorship possible
One solid signal, not two — worth applying, and worth asking about sponsorship early.
- Employer is on a government sponsor recordThe US Department of Labor certified 39 H-1B/E-3 labor condition applications for this employer between Oct 2025 and Jun 2026 (latest Jun 2026) — the step every H-1B hire needs first. USCIS also records 15 H-1B approvals in FY2023. Source: LCA disclosure data (US Department of Labor (OFLC)).
- The posting doesn’t mention sponsorshipSilence isn’t a refusal — ask the recruiter before investing much time.
- No salary bar for this routeH-1B has no fixed salary bar: the employer must pay at least the prevailing wage for the role and area. Cap-subject employers enter a lottery weighted by wage level. Source: https://www.federalregister.gov/documents/2025/12/29/2025-23853/weighted-selection-process-for-registrants-and-petitioners-seeking-to-file-cap-subject-h-1b, rules effective 2026-02-27.
- What Glaxosmithkline LLC paid sponsored hires in similar roles8 certified filings for “Principal Scientist” (Medical Scientists, Except Epidemiologists) in PA: $98k–$110k, median $98k. Most were filed at wage level I (63%) — 1 lottery entry, ≈15% projected selection odds for cap-subject employers. Source: US Department of Labor LCA disclosure data (Oct 2025 – Jun 2026).
- Last confirmed live 3 days agoWhen a source last listed this job as open.
US H-1B: cap-subject employers enter a lottery weighted by wage level — Level I gets 1 entry, Level IV gets 4 (DHS projected selection odds ≈15% at Level I to ≈61% at Level IV). Universities and non-profit research employers are cap-exempt. The $100,000 fee for new petitions from abroad is currently blocked by a court order (appeal pending).
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Sponsor Radar — Glaxosmithkline LLC
The US Department of Labor certified 39 H-1B/E-3 labor condition applications for this employer between Oct 2025 and Jun 2026 (latest Jun 2026) — the step every H-1B hire needs first. USCIS also records 15 H-1B approvals in FY2023. Source: LCA disclosure data (US Department of Labor (OFLC)).
Past sponsorship or register membership never guarantees sponsorship for this vacancy or for you. Full Sponsor Radar for Glaxosmithkline LLC →
About the role
Scientist/Sr. Scientist – Bioassay Development, Validation and Tech Transfer At GSK, we have bold ambitions for patients, aiming to positively impact the health of 2.5 billion people by the end of the decade. Our R&D focuses on discovering and delivering vaccines and medicines, combining our understanding of the immune system with cutting-edge technology to transform people’s lives. GSK fosters a culture ambitious for patients, accountable for impact, and committed to doing the right thing, making sure that we focus our efforts on accelerating significant assets that meet patients’ needs and have the highest probability of success. We’re uniting science, technology, and talent to get ahead of disease together. Find out more: Our approach to R&D The Extended Characterization group of the Analytical Development Department within the Drug Development and Supply organization has an exciting opportunity for an enthusiastic and driven Scientist/Senior Scientist to join our Bioassay team. This lab-based position offers an exceptional opportunity to contribute to the development, automation, validation, and tech transfer of cell-based potency methods, which are vital to drug development and manufacturing processes. By joining our team, you will play a key role in delivering new medicines to patients while advancing your career in the biopharmaceutical industry. Key Responsibilities: • Develop and validate cell-based bioassays used for characterization, comparability and GMP release of stability samples analysis • Participate in early/late-phase validation and method transfer activities to commercial testing laboratories • Provide scientific input on method development with a focus on MOA (Mechanism of Action) functional mechanisms • Collaborate with biology SMEs (Subject Matter Experts) to establish cell-based methods suitable for GMP settings • Ensure laboratory compliance with regulatory standards, data integrity, safety and quality standards consistent with company policies • Identify and address compliance issues in experiments and lab protocols • Independently conduct and manage experiments with increasing complexity • Design, execute and accurately record experimental data • Identify and troubleshoot problems during experiments, proposing solutions based on data and contributing to process improvements • Collaborate with data science and automation teams • Foster and maintain good relationships both within and outside of Analytical Development department Basic Qualifications: • Ph.D. or Master’s degree in Biology, Biological Science or Molecular Biology with ≥ 2 years of experience, or Bachelor’s degree with ≥ 5 of experience in performing or developing cell-based potency methods in an academic institution, biotechnology, or pharmaceutical industry • Two or more years experience in cell biology experience with cell-based method development and troubleshooting • Two or more years of experience in cell-culture techniques, including culturing various immortalized adherent and suspension cell lines Preferred Qualifications: • Understanding and experience in GLP (Good Laboratory Practice) or GMP (Good Manufacturing Practice) • Experience with cell-based methods for Biologics, oligonucleotide and ADC (antibody-drug conjugate) therapeutics • Ability to independently conduct and manage experiments, as well as analyze and interpret data • Excellent communication and strong technical writing skills for documentation • Experience with liquid handling automation instrument for performing sample preparations and/or cell-based assays (e.g. Hamilton, Tecan, HP D300e) is a plus • Experience with cell line creation by gene transfection techniques • Experience with Flowcytometry/FACS will be a plus • Maintaining and valida