Senior Data Engineer – Biomedical Knowledge Graphs
- Hiring from
- Romania
- Work type
- Hybrid
- Posted
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Overview
At QIAGEN, we are driven by a simple but powerful vision: making improvements in life possible.
We’re dedicated to revolutionizing science and healthcare for the better. From our entrepreneurial roots to our current global presence, we've grown into a force for positive change. With thousands of employees across six continents, collaboration is our greatest strength. We’re always striving to identify talented individuals to join our exceptional teams.
We have played a pivotal role in shaping modern science and healthcare, and we're just getting started. If you're someone who thrives on new challenges, values diversity and wants to make a tangible difference in people's lives, then QIAGEN is the place for you.
At QIAGEN, every day is an opportunity to make a real-life impact.
Join us, grow with us, and together, let's shape the future of biological discovery.
About the opportunity
Join QIAGEN Digital Insights in Cluj-Napoca and help transform complex biomedical data into actionable scientific knowledge. Our solutions, including OmicSoft, Discovery Knowledge Base, Ingenuity Pathway Analysis (IPA) and QCI, enable pharmaceutical, biotech, academic and government researchers to interpret molecular and genomic data.
As a Senior Data Scientist – Biomedical Knowledge Graphs, you will own the development, validation and release of biomedical knowledge base products supporting scientists and AI-enabled applications. Working with curated RDF content, knowledge graphs and analytical databases, you will build robust pipelines that transform biological knowledge into graph, analytical and tabular formats. Combining data science, knowledge graph technologies and software engineering, you will also work with AI-extracted relationships and LLM-enabled tools, collaborating with content specialists, bioinformaticians, DevOps and data platform engineers.
Your tasks include
- Owning the end-to-end build and release cycle for biomedical knowledge base products, from transferring curated content to the cloud and running pipelines through to ingestion, deployment and production release.
- Investigating and validating complex biomedical datasets using SPARQL and RDF, Neo4j and Cypher, and SQL, analysing release-to-release changes and identifying significant shifts, inconsistencies or quality issues.
- Developing and maintaining production pipelines that transform curated RDF content into graph databases, analytical datasets and tabular exports, ensuring they remain reliable as schemas and source data evolve.
- Integrating AI-extracted biomedical relationships with curated knowledge and supporting MCP servers and client libraries that enable users and LLM-based applications to interact with the knowledge base.
- Diagnosing and resolving data and pipeline issues, tracing problems to their source and collaborating with content specialists to determine whether changes should be addressed in the source knowledge base or within the build.
- Building and improving well-tested Python and/or Java solutions, automated quality checks, build scripts and CI/CD pipelines using test-driven development, code review and modern software engineering practices.
- Collaborating with bioinformatics, content, DevOps and data platform teams while continuously automating manual processes and improving the reliability, quality and efficiency of knowledge base releases. Triaging failing content tests to decide whether a release can safely proceed will also be part of your role.
Your profile
- MSc or PhD in Data Science, Computer Science, Bioinformatics, Computational Biology or a related discipline, or equivalent relevant professional experience, combined with 5+ years of experience developing production data pipelines, scientific data products or knowledge-based applications.
- Strong programming skills in Python and/or Java, together with solid SQL capabilities and experience writing maintainable, well-tested production code.
- Hands-on experience with knowledge graphs or graph data technologies, particularly RDF and SPARQL and/or Neo4j and Cypher, with an interest in expanding your expertise across these technologies.
- Practical experience with AWS, CI/CD and build automation, using technologies such as Jenkins, Gradle, GitHub Actions or Maven, alongside Git-based source control and code review workflows.
- A methodical approach to data validation, quality assurance and reproducible production processes, with the ability to investigate complex datasets, identify anomalies and improve multi-step workflows.
- Strong communication and collaboration skills, with an interest in working across data science, software engineering and scientific disciplines in an international environment.
- Experience in one or more of the following would be advantageous: biomedical or biological data, genes and pathways, biomedical ontologies, knowledge graphs, NLP or LLM-based applications, MCP servers, R, Python or R package development, Docker, or infrastructure as code using AWS CDK.
What we offer
Bonus/Commission
Local benefits
Referral Program
Volunteer Day
Internal Academy (QIALearn)
Employee Assistance Program
Hybrid work (conditional to your role)
Our people are the heartbeat of everything we do. Passion drives us as we push boundaries to innovate and evolve. We inspire with our leadership and make an impact with our actions. We cultivate a collaborative, supportive environment where each individual and team can flourish. We champion accountability and encourage entrepreneurial thinking.
QIAGEN is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, sex, age, national origin, religion, sexual orientation, gender identity, status as a veteran, or disability.
About QIAGEN
At QIAGEN, our vision is clear: Making improvements in life possible.
This is reflected in our daily actions to help scientists, clinicians and professionals tackle some of the world’s greatest challenges – unlocking insights that advance science, improve healthcare and enhance lives.
To achieve this, we stay focused on one mission: to offer Sample to Insight solutions.
Our products and services turn complex biological samples into valuable answers. Whether it’s enabling a breakthrough discovery or improving patient outcomes, we help our customers move from data to insight, faster and with greater confidence.
Beware of job scams
Please be cautious of unsolicited job offers and requests for personal or financial information. QIAGEN will never ask candidates to make a payment as part of the recruitment process. If you are unsure whether a communication or job opportunity is legitimate, please verify it through your personal contact or hiring partner.
Your path to QIAGEN
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