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At Thermo Fisher Scientific, you’ll discover meaningful work that makes a positive impact on a global scale. We provide our teams with the resources needed to achieve individual career goals while taking science a step beyond through research, development and delivery of life-changing therapies. Consider becoming part of our game-changing and inclusive team, where your contributions impact our Mission to enable our customers to make the world healthier, cleaner and safer.

Your determination to deliver quality and accuracy will improve health outcomes that people and communities depend on – now and in the future.

Clinical Trials Careers


Our team of colleagues in clinical research services are at the forefront of getting cures to market. We bring a high caliber of scientific and clinical expertise to the development of drugs that address the world’s most challenging health concerns.
Clinical Operations
Join our expert team to support clinical programs and ensure high-quality, cost-efficient studies.
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Site Payments
Our specialized team manages payment processing throughout the life of a study.
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Medical Communications
We improve patient health with high-quality information services, managing inquiries and supporting product launches.
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Pharmacovigilance
Join our global team to ensure accurate safety information for investigational and commercial products.
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Project Delivery
Our Project Managers support companies developing new medicines while ensuring patient safety and well-being.
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Project Support Services
Our team ensures study success with efficient, consistent processes, leveraging global time zones.
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Regulatory Affairs
We provide strategy, guidance, submission delivery and support to project teams and other departments, ensuring they are well-informed and compliant with regulatory requirements. 
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Functional Service Partnerships
Our colleagues serve as an extension of our customers, supporting key functions and providing flexible, cost-effective options to support our customer’s evolving needs.
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Over the past seventeen years I have continuously grown in my career on three major levels - Clinical Research Associate (CRA), Clinical Team Manager (CTM) and Project Manager (PM) and always had the feeling of being at the right place and at the right time. Joining Thermo Fisher Scientific is an excellent opportunity to become part of a global company with high ethical values, having a strong presence in Bulgaria where one of the biggest and multi-functional global company offices is located.

Learn more about Angel's journey
Angel, Associate Director Project Management, Project Delivery

By being a part of Clinical Operations Team in Thermo Fisher Scientific, I can contribute to improving the lives of many people by ensuring the successful execution of clinical trials and the timely delivery of safe and effective drugs to the market. Working in Clinical Operations allows me to be at the forefront of technological advancements and developments in the pharmaceutical sphere.

I feel that my passion for helping others, my interest in technology and development can make a significant impact in this industry.
Vironika, CRA (Level I), Clinical Operations
Personally, it has always been the people I have had the privilege of working with, the team. I work with amazing, highly motivated professionals who strive every day to do the best for their teams and clients. I feel that Thermo Fisher Scientific offers opportunity for personal growth for everyone who is willing to take on new tasks and responsibilities.  

The rewarding part has always been happy clients and happy colleagues and seeing people I am responsible for grow and develop.
Martin, Associate Director Operations, Medical Communications
As a Medical Information Specialist, I interact with healthcare professionals and patients and provide responses to their enquiries associated with medicinal products. I consider myself lucky to work in a field, where I am directly able to see my contribution to patient care. Through providing accurate and well-researched responses to doctors and patients I help supply the needed information with the aim of facilitating well-informed treatment decisions that may ultimately improve patient wellbeing.
Yoanna, Medical Information Specialist II
My background in Medical Information always involved working in close relation with Pharmacovigilance, which ended up fostering a heavy respect for their responsibility and function in the pharmaceutical industry, making me beyond glad to join its ranks when I finally had the chance. I have grown rather fond of the structure as it lets me utilize my communication fluency, detail orientation and problem-solving aptitude on a daily basis; and those skills only get stronger the more you use them!
Yavor, Senior Coordinator, Pharmacovigilance
The Country Approval Specialist role has given me the opportunity to put all my faculties to use serving a great purpose - to help people and science. Organizing clinical trials with the highest of quality is my daily mission and I am nothing but proud to have been sharing it with my company for 11 years now.
Iva, Principal Country Approval Specialist, Cinical Operations
During my career journey at Thermo Fisher Scientific it has sometimes been challenging for me to find the perfect work-life balance, or to get outside of my comfort zone to obtain new tasks and responsibilities, but I know that if we stay within our comfort zone, there will be no progress in terms of career development, new knowledge and valuable experience. Therefore, I have embraced these opportunities, and I think that the most challenging moments in my career have been the most rewarding, as they have helped me polish my organizational skills and broaden my tasks range and enrich my work experience. 

Everyone wants a job that brings personal satisfaction and leaves a recognizable trace in human lives. A lot of medicines and cures are being invented every single day, a lot of patients’ lives and the lives of their families get much easier because of the innovative medicines in clinical trials that are being conducted at Thermo Fisher Scientific.
Petya, Senior Project Support Coordinator, Project Support Services

Corporate Careers


Colleagues in Corporate strive for excellence in every task, at every moment. We are game changers seeking improvements to processes and more efficient ways of working or adapting to changing financial and industry environments.
Finance
Our Finance team excels in financial management, planning, and innovation, improving efficiency for customers.
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Human Resources
Our Bulgarian HR teams provide comprehensive support and innovative solutions for global business operations.
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Legal
The Legal and Privacy teams provide critical support and safeguard data, ensuring compliance and success.
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Information Technology
Our IT department in Sofia excels in delivering innovative solutions and managing major projects.
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Quality & Enterprise Learning
We help the organization lead in quality through strategic partnership and continuous improvement.
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I love the culture we have in the company. I see so many opportunities everywhere and feel I am in the right place. It feels like one big family, and everyone offers support when you need it.
Sara, Assoc Manager Operations Finance 

Our efforts contribute to the effective and efficient financial and operational management of the clinical trial projects, which is necessary to ensure customer satisfaction, increased business opportunities, and overall successful conduct of a trial which could potentially bring a life-saving drug/therapy to market. Our contributions throughout the years have always been acknowledged and the experience of making a difference has been greatly rewarding. 
Valentin, Sr Manager Operations Finance 

We make a difference because our involvement in contract modifications is connected to the clinical trials we are conducting and updating the financial structure of a contract leads to a better financed and more successful clinical trial, which helps a medicine to reach the market and cure patients faster.
Viktoriya, Associate Manager Commercial Development 
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