
Centessa Pharmaceuticals, a wholly owned subsidiary of Eli Lilly and Company, is a clinical-stage company developing orexin receptor 2 (OX2R) agonists as a new class of medicines for the treatment of narcolepsy and potentially other sleep-wake disorders. Centessa’s lead investigational candidate – cleminorexton (formerly ORX750) – is being developed for narcolepsy type 1, narcolepsy type 2, and idiopathic hypersomnia. Centessa's OX2R agonist portfolio includes additional clinical and preclinical-stage assets with potential utility across a broader range of neurological, neurodegenerative, and neuropsychiatric conditions.
Headquartered in Boston, Massachusetts, Centessa was recognized as a Great Place to Work® in 2026.
The (contract-to-hire) Sr. Clinical Trial Specialist perform tasks to support the planning and execution of clinical studies across one or more clinical trials. This role is a temporary position with the potential to convert to a permanent role, working closely with the Clinical Trial Manager (CTM) to ensure site start-up through close-out activities are conducted in accordance with Standard Operating Procedures (SOPs), GCP and regulatory guidelines.
The hourly range for this position is $65.00 to $85.00 per hour. Individual compensation within this range will be determined based on a variety of factors, including qualifications, skills, relevant experience, and job knowledge.
Contractors engaged through Centessa are employed through a third-party agency that serves as the employer of record and provides access to a comprehensive benefits package. Eligible contractors may enroll in medical plans, including PPO and EPO options, as well as dental and vision coverage after 30 days. Additional perks, such as a 401(k), wellness programs, and other discounts, may also be available to eligible contractors.
The Senior Clinical Specialist role is based in the US, with occasional travel.
POSITION: Temporary, non-exempt
EEOC Statement: Centessa Pharmaceuticals, a wholly owned subdisary of Eli Lilly and Company believes in a diverse environment and is committed to equal employment opportunity for all its employees and qualified applicants. We do not discriminate in recruitment, hiring, training, promotion, or any other employment practices for reasons of race, color, religion, gender, national origin, age, sexual orientation, marital or veteran status, disability, or any other legally protected status. We will make reasonable accommodations for qualified individuals with known disabilities, in accordance with applicable law.
Please note: We will not assign referral rights for any unsolicited resumes from recruitment agencies.

Centessa Pharmaceuticals plc is a clinical-stage pharmaceutical company with a Research & Development innovation engine that aims to discover, develop and ultimately deliver impactful medicines to patients. Our programs span discovery-stage to late-stage development and cover a range of high-value indications in rare diseases and immuno-oncology. We are led by a management team with extensive R&D experience, providing direct guidance to our program teams to rapidly advance our candidates from research through all stages of development. We are headquartered in Boston, Massachusetts.