XM Logo

XM

Senior Data Scientist – Graph Machine Learning

Reposted One Month 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

3 Days Ago
Remote
Senior level
Senior level
Artificial Intelligence • Productivity • Software • Automation
Create motion design across product explainers, websites, paid social, events, campaigns, and product launches. Develop Zapier’s motion language, branded animation systems, motion guidelines, component libraries, and reusable templates. Collaborate with brand, product, marketing, web, social, agencies, and external partners. Produce storyboards, UI-based animations, scalable video formats, and experiment with AI and motion tools to help teams create on-brand assets independently.
Top Skills: Ai Video ToolsFigmaFigma MotionJitter
3 Days Ago
Remote or Hybrid
Entry level
Entry level
Cloud • Healthtech • Social Impact • Software • Biotech
Drive new business and revenue growth across the Nordic territory by generating pipeline, managing complex SaaS sales cycles, forecasting accurately, presenting solutions, negotiating with technical and executive stakeholders, and closing strategic accounts. The role also involves account relationship management, collaboration with marketing, product, customer success, and channel teams, Salesforce data integrity, and use of structured sales methodologies such as MEDDICC.
Top Skills: Artificial IntelligenceMeddiccSaaSSalesforce
3 Days Ago
Remote or Hybrid
Senior level
Senior level
Big Data • Food • Hardware • Machine Learning • Retail • Automation • Manufacturing
Lead program-level change strategy, readiness framework, and QA for change deliverables. Standardize key user learning journeys, manage the integrated change plan, oversee risks and issues, direct Functional Change Leads, represent change at leadership forums, and build lasting organizational change capability.
Top Skills: ConfluenceJIRAMicrosoft TeamsMs ProjectO9OracleSalesforceSAPSharepointSmartsheet

What you need to know about the Boston Tech Scene

Boston is a powerhouse for technology innovation thanks to world-class research universities like MIT and Harvard and a robust pipeline of venture capital investment. Host to the first telephone call and one of the first general-purpose computers ever put into use, Boston is now a hub for biotechnology, robotics and artificial intelligence — though it’s also home to several B2B software giants. So it’s no surprise that the city consistently ranks among the greatest startup ecosystems in the world.

Key Facts About Boston Tech

  • Number of Tech Workers: 269,000; 9.4% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Thermo Fisher Scientific, Toast, Klaviyo, HubSpot, DraftKings
  • Key Industries: Artificial intelligence, biotechnology, robotics, software, aerospace
  • Funding Landscape: $15.7 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Summit Partners, Volition Capital, Bain Capital Ventures, MassVentures, Highland Capital Partners
  • Research Centers and Universities: MIT, Harvard University, Boston College, Tufts University, Boston University, Northeastern University, Smithsonian Astrophysical Observatory, National Bureau of Economic Research, Broad Institute, Lowell Center for Space Science & Technology, National Emerging Infectious Diseases Laboratories

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account