XM Logo

XM

Senior Data Scientist – Graph Machine Learning

Reposted 8 Days Ago
Be an Early Applicant
Remote or Hybrid
Hiring Remotely in Athens
Senior level
Remote or Hybrid
Hiring Remotely in Athens
Senior level
Design, develop, and deploy production Graph Neural Network solutions. Transform large datasets into graphs, apply graph algorithms and analytics, ensure data and model quality, lead a team of data scientists, and collaborate with engineers and stakeholders to deliver scalable Graph AI solutions.
The summary above was generated by AI
The Role: 

We are looking for a Senior Data Scientist specializing in Graph AI to join our growing Data Science team. In this role, you will design and deploy production-grade graph machine learning solutions, working with Graph Neural Networks (GNNs), graph databases, and large-scale datasets to solve complex real-world problems.  

You will play a key role in shaping the company's Graph AI capabilities, collaborating with cross-functional teams and mentoring other data scientists while delivering innovative, business-impacting solutions.

The main responsibilities of the position include:

    • Design, develop, and deploy Graph Neural Networks (GNNs) and graph-based machine learning solutions  

    • Transform large, complex datasets into graph representations and extract actionable insights using advanced analytics, graph algorithms, and statistical techniques.  

    • Drive the adoption of Graph AI across the organisation by identifying new use cases and contributing to the evolution of the company's data science strategy. 

    • Communicate complex technical concepts and model outcomes clearly to both technical and business audiences. 

    • Ensure high standards in data preparation, feature engineering, model evaluation, documentation, and code quality.  

    • Leverage technologies such as Python, Graph Neural Networks, graph databases, modern ML frameworks, and cloud-based data platforms to build innovative data solutions 

    • Ensure adherence to best practices in data quality, model monitoring, version control, and reproducible analytics   

    • Lead and supervise a team of data scientists working on graph-related tasks 

    • Partner closely with Data Engineers, Software Engineers, Product Managers, and business stakeholders to translate business challenges into scalable Graph AI solutions.  

     

Main requirements:

    • University degree in Mathematics, Physics, Computer Science, Engineering, Data Science, or a related quantitative field  

    • At least 6 years of experience in data science, machine learning and AI, including hands-on experience in designing, training and optimising Graph Neural Networks (GNNs) for production applications. 

    • Experience working with relational and non-relational databases 

    • Solid experience working with graph databases (e.g., Neo4j, Neptune) and proficiency in graph query languages (e.g., Cypher or Gremlin). 

    • Experience with data visualization tools such as Matplotlib, Seaborn, or Plotly 

    • Strong programming skills in Python and experience with Pandas, NumPy, and similar data analysis libraries  

    • Strong analytical thinking, problem-solving ability, and attention to detail. 

    • Excellent communication skills and the ability to work collaboratively in a team environment 

    • Fluent in English 

Benefit from:

    • Attractive remuneration package plus performance related reward 

    • Private health insurance 

    • Corporate pension fund 

    • Intellectually stimulating work environment 

    • Continuous personal development and international training opportunities 

The Hiring Experience: What Awaits You

    • Let’s Connect – Intro Chat with Talent Acquisition 

    • Deep Dive – First Interview with Your Future Team 

    • Bring It to Life – Role-Specific Take-Home Task 

    • Final Connection – Final Interview 

All applications will be treated with strict confidentiality!

Similar Jobs

2 Days Ago
Remote or Hybrid
4K-4K Annually
Senior level
4K-4K Annually
Senior level
Big Data • Food • Hardware • Machine Learning • Retail • Automation • Manufacturing
Manages strategic, transformational, and cross-functional projects from planning through go-live. Responsibilities include coordinating teams and vendors, managing budgets, timelines, quality, testing, resources, risks, reporting, governance, and operational readiness. The role also mentors project managers, leads stakeholder meetings, and drives consistent project delivery across multiple regions.
Top Skills: MS Office
3 Days Ago
Remote or Hybrid
Mid level
Mid level
Artificial Intelligence • Healthtech • Machine Learning • Natural Language Processing • Biotech • Pharmaceutical
Lead quality assurance for medical devices and combination products across development and sustaining lifecycles. Provide risk-based design control and quality system oversight, review complaint investigations, support post‑market activities, partner with cross‑functional teams, and drive process improvements to ensure regulatory compliance and patient safety.
Top Skills: 21 Cfr 82021 Cfr Part 4GmpIso 13485Iso 14971
4 Days Ago
Remote
USA
163K-272K Annually
Expert/Leader
163K-272K Annually
Expert/Leader
Artificial Intelligence • Healthtech • Machine Learning • Natural Language Processing • Biotech • Pharmaceutical
Lead design, delivery and maintenance of GMP/GDP audit strategy for biologics, aseptic, small molecule and medical device areas. Plan and execute complex audits, coach auditors, analyze regulatory intelligence, drive corrective actions, support inspection readiness, and partner with PGS/PharmSci and site stakeholders to ensure compliance and continuous improvement.
Top Skills: Aseptic ManufacturingDigital HealthEu DirectiveFdaGdpGmpIchIsoMedical Device RegulationsPic/SQuality Management SystemSoftware As A Medical Device (Samd)Tga

What you need to know about the NYC Tech Scene

As the undisputed financial capital of the world, New York City is an epicenter of startup funding activity. The city has a thriving fintech scene and is a major player in verticals ranging from AI to biotech, cybersecurity and digital media. It also has universities like NYU, Columbia and Cornell Tech attracting students and researchers from across the globe, providing the ecosystem with a constant influx of world-class talent. And its East Coast location and three international airports make it a perfect spot for European companies establishing a foothold in the United States.

Key Facts About NYC Tech

  • Number of Tech Workers: 549,200; 6% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Capgemini, Bloomberg, IBM, Spotify
  • Key Industries: Artificial intelligence, Fintech
  • Funding Landscape: $25.5 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Greycroft, Thrive Capital, Union Square Ventures, FirstMark Capital, Tiger Global Management, Tribeca Venture Partners, Insight Partners, Two Sigma Ventures
  • Research Centers and Universities: Columbia University, New York University, Fordham University, CUNY, AI Now Institute, Flatiron Institute, C.N. Yang Institute for Theoretical Physics, NASA Space Radiation Laboratory

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account