Jobs / United States / Keros Therapeutics INC

Keros Therapeutics INC

Upstream Process Development Co-Op

Lexington, Massachusetts, United States Posted 1 month ago

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Sponsorship verdict

Sponsorship possible

One solid signal, not two. Worth applying, and worth asking about sponsorship early.

  • Employer is on a government sponsor recordUSCIS Data Hub records 1 H-1B approvals for this employer in FY2023 — older 2023 data; no recent Department of Labor filings (Oct 2025 – Jun 2026) were found for it.
  • 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.
  • Confirmed live todayWhen a source last listed this job as open.
Details and sources
Employer is on a government sponsor record
USCIS Data Hub records 1 H-1B approvals for this employer in FY2023 — older 2023 data; no recent Department of Labor filings (Oct 2025 – Jun 2026) were found for it. Source: US Department of Labor visa filings (LCA) (US Department of Labor (OFLC), plus USCIS H-1B Employer Data Hub).
No salary bar for this route
H-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.

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).

A verdict summarises public evidence. It is not legal advice and never a guarantee: the employer and the immigration authority decide. Sign in to factor in where you can already work.

About the role

At Keros, our mission is to deliver significant clinical benefit to a wide range of patients with disorders that are linked to dysfunctional signaling of the transforming growth factor-beta (TGF-ß) family of proteins. With a focus on developing differentiated product candidates that are designed to alter TGF-β signaling, we aim to target the pathways critical for the growth, repair and maintenance of blood cells and a number of tissues, including bone, skeletal muscle, adipose and heart tissue. We believe our product candidates have the potential to unlock the full therapeutic benefits of modulating the TGF-β superfamily and provide disease-modifying benefit to patients. Job Summary This role is responsible for media and feed preparation, execution of experiments for upstream biologics process development, routine daily maintenance of upstream equipment, and experiment data management and analysis. Organizational skills, communication skills, and recordkeeping are also critical to this role. Primary Responsibilities: • CHO mammalian cell cultures in shaker flasks, WAVE bioreactors, and benchtop bioreactors • Media and feed formulation as needed for experiments • Data management and analysis including metabolite, gas, cell count, and titer data • Media and feed studies to support process development on early phase programs • Scale-down modeling and range finding to support development and program technology transfers • Depth filtration filter loading studies to develop cell culture harvest strategies • Routine maintenance on upstream equipment to maintain daily functionality Core Competencies (Required Skills) • Familiar with aseptic technique methods • Familiar with experiment design • Familiar with Microsoft Office, especially Microsoft Excel • Technical and scientific writing and presentation skills Preferred Skills • Mammalian cell culture • Media and buffer preparation • Understanding of basic engineering and biology concepts Education Requirements • Currently enrolled in a chemical engineering, bioengineering, molecular biology or related program to earn a Bachelor of Science degree or equivalent This pay range represents the base hourly rate or base annual full-time salary for all positions in the job grade within which this position falls. The actual base salary offer will depend on a variety of factors including experience, education, and other relevant factors. Potential base pay range $28 — $32 USD Our Diversity, Equity & Inclusion Mission Statement: Keros is an inclusive company. We believe that diversity drives innovation. We continue to build an inclusive culture that encourages, supports, and celebrates the diverse voices of our employees. As such, Keros takes a holistic approach in mentoring, coaching, and developing all of our Keros team members. Keros Therapeutics is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex including sexual orientation and gender identity, national origin, disability, protected veteran status, or any other characteristic protected by applicable federal, state, or local law. Recruitment & Staffing Agencies: Keros Therapeutics does not accept unsolicited resumes from any source other than the candidate directly. Any unsolicited submission by an agency to Keros is prohibited. Any resume submitted by an agency without a signed contract or expressed consent by a member of the Keros Therapeutics Human Resources Department, will be considered property of Keros Therapeutics, and no fee shall be owed with respect thereto.

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