Senior Specialist, Proposals & Client Service- (US)

Who we are

We’re a global, midsize CRO that pushes boundaries, innovates and invents because the path to a cure for the world’s most persistent diseases is not paved by those who play it safe. It is built by those who take pioneering, creative approaches and implement them with quality and excellence.

We are Worldwide Clinical Trials, and we are a global team of over 3,500+ experts, bright thinkers, dreamers and doers and, together, we are changing the way the world experiences CROs – in the best possible way.

Our mission is to work with passion and purpose every day to improve lives and we are looking for others who value this same pursuit.

Why Worldwide

We believe everyone plays an important role in making a world of difference for patients and their caregivers. From our hands-on, accessible leaders, to our cohesive and supportive teams, we are committed to enabling professionals from all backgrounds and experiences to succeed. We prioritize cultivating a diverse and inclusive environment that continues to promote collaboration and creativity. We are proud to be a workplace where people thrive by being themselves and are inspired to do their best work every day. Join us!

Make an Impact as a Senior Specialist, Proposals and Client Services at Worldwide

As a Senior Specialist, Proposals and Client Services, you'll play a key role in supporting the successful pursuit of new business opportunities across clinical research programs. Your expertise in proposal development, budgeting, and client service will help deliver high-quality, competitive responses that meet client needs and support study success.

In this highly collaborative role, you'll work across multiple functions to coordinate complex proposals, RFIs, and pricing activities while ensuring accuracy, efficiency, and strong attention to detail. You'll also contribute to process improvement initiatives, training efforts, and operational excellence within the proposals team.

Where You'll Work

This is a REMOTE role open to candidates based in US. You will collaborate with global teams across multiple time zones.

What You'll Do

• Lead the coordination, preparation, and delivery of proposals, RFIs, and related client service activities.
• Develop and review budgets and pricing analyses to support competitive and accurate client proposals.
• Manage the completion of RFI questionnaires and contribute to the maintenance of RFI response databases.
• Collaborate with cross-functional stakeholders to gather information and ensure comprehensive, high-quality proposal submissions.
• Provide training, mentoring, quality review, and specialized budget tool support for proposal associates and specialists.
• Track and analyze key performance indicators (KPIs) to support operational effectiveness and continuous improvement.
• Recommend and implement process enhancements that improve efficiency, quality, and consistency.
• Support proposal management activities and other business-critical initiatives as assigned.

What You'll Bring

• Bachelor's degree required, preferably in Life Sciences or Business, with 3-5 years of experience preparing proposals and budgets within the clinical trial industry, ideally in a CRO environment.
• Demonstrated expertise in developing Strategic, Full Service, and Preferred Provider RFP responses.
• Strong knowledge of early-phase clinical study designs, including healthy volunteer, patient, and multi-site studies.
• Advanced ability to create customized budgets and compile complex proposal documentation and responses.
• Strong analytical, mathematical, organizational, negotiation, and problem-solving skills.
• Ability to influence and collaborate effectively with stakeholders at all levels, including management, while handling competing priorities and deadlines.
• Advanced proficiency in Microsoft Office applications, particularly Word and Excel.
• Proficiency in English.

At Worldwide Clinical Trials, we are committed to fostering an inclusive and equitable workplace by providing transparent compensation.

The salary range for this position is annually (For hourly paid positions, the stated salary range reflects hourly rates):
United States of America - $65,000.00 - $129,000.00

The salary range provided is intended to give candidates an understanding of potential earnings. Compensation will fall within the provided range, and it not a guarantee of exact salary. The final salary will be determined based on relevant experience, performance, education, and internal equity. In addition to base salary, we offer a competitive benefits package depending on location. We ensure pay equity and transparency and comply with all applicable labor laws. Salary information will be discussed during the interview process, and we encourage candidates to inquire about compensation at any stage.

We love knowing that someone is going to have a better life because of the work we do.

To view our other roles, check out our careers page at Discover a world of difference at Worldwide ! For more information on Worldwide, visit or connect with us on LinkedIn.