Senior System Engineer

Work Schedule

Standard (Mon-Fri)

Environmental Conditions

Office

Job Description

Thermo Fisher Scientific is a world-class company with a global presence, dedicated to enabling our customers to make the world healthier, cleaner, and safer. As a leading life sciences company, we are driven by our values of Integrity, Intensity, Innovation, and Involvement. With over 100,000 colleagues, we work together as one team to accelerate research, solve complex scientific challenges, drive technological innovation, and support patients in need. At Thermo Fisher Scientific, we value diverse experiences, backgrounds, and perspectives, fostering an inclusive environment where everyone's contributions are respected and celebrated.

Discover Impactful Work

This position is based on our site in Uppsala, where Thermo Fisher develops, manufactures, and markets complete blood test systems to support the clinical diagnosis and monitoring of allergies, asthma, and autoimmune diseases. With 1,900 employees worldwide working with these products, and 1,000 in Sweden, we are the global leader in in-vitro allergy testing and the European leader in autoimmunity diagnostics.

The job

Do you want to shape the next generation of diagnostic systems for allergy and autoimmune diseases? We are looking for a Senior System Engineer to lead the development of innovative system solutions—from early concept to final verification—working at the intersection of hardware, software, and clinical needs. 

As a Senior System Engineer, you will have overall technical responsibility for the development and evolution of complex analysis systems, with a focus on system functionality and performance. You will ensure system designs meet customer needs as well as regulatory and quality requirements. The role includes leading system definition, concept development, and architecture across the full product lifecycle. You will coordinate requirements across disciplines and drive alignment between hardware, software, and workflows to support successful system development and delivery. 

What will you do?

• Lead system design and define product requirements based on customer and stakeholder needs, translating them into robust concepts and architectures

• Own and maintain requirements, ensuring alignment with regulatory standards, traceability, and product quality

• Drive the full system lifecycle—from concept and architecture through integration, verification, and customer feedback

• Provide technical leadership across cross-functional teams, ensuring alignment between hardware, software, and workflows

• Lead risk management activities, including identification, assessment, and mitigation

• Establish and govern system engineering processes, methods, and best practices

• Support product launches and continuous improvement initiatives

• Serve as a subject matter expert in system engineering, supporting technical direction and decision-making 

How will you get there?

• Bachelor’s or Master’s degree in Engineering, Systems Engineering, or a related field

• 5+ years of experience in system engineering, product development, or similar roles involving complex systems

• Strong experience in requirements engineering, architecture, and integration across multiple domains

• Experience working in regulated environments (e.g., medical devices or diagnostics) is highly valued

• Proven ability to lead technical initiatives and coordinate cross-functional teams to deliver complex projects

• Strong analytical and problem-solving skills with a structured approach to development

• Effective communicator with the ability to collaborate across disciplines

• Proactive and comfortable taking ownership in a team environment

• Fluency in English and Swedish, both written and spoken

Who We Are?

We are a cross-functional team of 12 system engineers and UX designers working closely together to develop complex diagnostic systems. As a team, we are responsible for system design, architecture, and process ownership throughout the product lifecycle, with a strong focus on regulatory compliance, traceability, and user experience.

We collaborate across hardware, software, and user workflows, combining deep technical expertise with a strong focus on usability and customer value.

We are a collaborative and solution-oriented team with a positive, supportive atmosphere. We value open communication, knowledge sharing, and creating an environment where people enjoy working together.

Please apply as soon as possible, the position will be filled as soon as suitable candidate is found.