Senior Software Engineers, ML / UX / DevOps & Test Automation

Thermo Fisher Scientific Inc. is the world leader in serving science, with annual revenue of approximately $40 billion. Our Mission is to enable our customers to make the world healthier, cleaner and safer. For more information, please visit www.thermofisher.com.

Thermo Fisher Scientific recently announced that it has entered into an agreement to sell its microbiology business to Astorg, a leading pan-European private equity firm with deep expertise in healthcare, focused on a select set of subsectors, including pharmaceutical services and technology, medtech and related services, life science tools and diagnostics.

This decision follows a thoughtful evaluation as part of Thermo Fishers ongoing business strategy to actively manage and strengthen our portfolio.

We expect the transaction will be completed in the second half of 2026, subject to customary closing conditions and applicable regulatory approvals. Until the transaction is complete, Thermo Fisher will continue to operate the business.

If you join the microbiology business prior to the close of the transaction, your employment is expected to transition to Astorg.

For more information, please review:

Thermo Fishers press release

Astorg press release

How will you make an impact?

We are now looking for Senior Software Engineers, with focus areas in Machine Learning, User Experience, or DevOps and Test Automation to join us.

We are transferring these roles from abroad to Finland and thus we are looking for new people to join us in these versatile roles on site in Vantaa.

Joining an international team of professionals, you will contribute to software solutions for microbiology products. Our software is part of regulated in vitro diagnostic laboratory solutions, where quality, reliability, usability, and compliance are essential.

We have three open positions for engineers who will work as hands-on software developers, while also bringing deeper interest and capability in one of three focus areas: Machine Learning, User Experience, or DevOps and Test Automation. We hope you are motivated to contribute and grow as a strong software engineer while applying special expertise that helps the team build better products and improve how we work.

We mainly develop Windows desktop software today, but we value a broad software engineering mindset and interest in modern software systems, connected solutions, data-driven features, usability, automation, and continuous improvement.

What will you do?

Design and develop software solutions: Build and maintain high-quality software for microbiology products.

Contribute through your expertise area: Depending on your background and interests, contribute across teams to machine learning capabilities, user experience improvements, or automation engineering practices such as test automation, DevOps, tooling, and development workflows.

Support modernization and continuous improvement: Help improve existing software, development practices, testability, maintainability, and effective use of modern tools, including AI-based development tooling.

Work as part of a cross-functional team: Collaborate with developers, product owners, testers, architects, project managers, quality, regulatory, and other stakeholders to deliver reliable software solutions.

Follow quality-driven development practices: Work systematically according to defined development processes, including documentation, traceability, verification, validation, and cybersecurity expectations.

What will you need?

Software development experience: Experience designing, developing, testing, and maintaining software applications, preferably on Windows, using technologies such as C#/.NET, Java, or similar.

Good engineering fundamentals: Understanding of software design, debugging, source control, automated testing, and collaborative development workflows.

Quality-minded way of working: Ability to work systematically, communicate clearly, document your work, and learn domain-specific development practices.

Collaboration and communication skills: Ability to work effectively in a cross-functional team, discuss technical topics clearly, and contribute to shared team goals.

Language and education: Proficient communication skills in English. Finnish is considered advantageous. Bachelors, Masters, or equivalent experience in Computer Science, Software Engineering, or a related field.

Focus areas

We are especially interested in candidates who can contribute in one of the following areas:

Machine Learning: Experience in machine learning models, model evaluation and data pipelines. You will join projects researching, prototyping and improving current and future ML initiatives.

User Experience: Experience in usability, user-centered design, workflow understanding, UI implementation and design systems.

DevOps and Test Automation: Experience in test automation, DevOps practices and improving development workflows.

Seen as a benefit:

Experience with clinical microbiology, diagnostics, healthcare software, laboratory workflows, scientific instruments, or IVDR medical device software.

Broad software engineering experience from areas such as cloud, web, mobile, or connected software systems.

Fluency in, or strong interest in adopting modern AI-based engineering workflows.

Experience with cybersecurity.

In addition to the exciting and versatile job, we offer:

Compensation on various methods from annual bonus scheme to colleague recognition program

Variety of occupational health care services and insurance

Possibility to work remote with agile and mobile working methods

Epassi leisure benefit

Various hobby clubs with company sponsorship such as golf club, boating club, sport club etc.

Possibility to take part in our charity work

Career development and progression possibilities offered by our global network

Our comprehensive training platform and programs.

Interested?

Join our team's mission and send in your application, including a cover letter, CV and salary request in English.

Apply via Careers at Thermo Fisher Scientific | Thermo Fisher Scientific jobs. Please apply as soon as possible; the position will be filled as soon as a suitable candidate is found.

The selected candidate will go through a health check which includes a drug test.