Senior Big Data Software Engineer (GraphDB)

TL;DR

Senior Big Data Software Engineer (GraphDB): Building and supporting a fraud investigation tool based on graph and network analysis with an accent on scalable data pipelines and relationship modeling. Focus on implementing TigerGraph algorithms to detect anomalies and developing an AI layer to provide actionable explanations of fraud patterns.

Location: Remote or Office in Bulgaria, Poland, or Romania

Company

Global digital solutions company specializing in data consulting and engineering across various industries including healthcare, finance, and retail.

What you will do

• Build and support a fraud investigation tool utilizing graph and network analysis.
• Model complex relationships between entities (e.g., devices, IPs) to identify fraud signals and suspicious patterns.
• Implement and optimize graph-based data pipelines and analytics solutions.
• Utilize TigerGraph algorithms to detect clusters, anomalies, and hidden connections.
• Contribute to an AI layer that explains detected fraud patterns in a clear, actionable way.
• Collaborate with analysts and stakeholders to refine fraud detection and investigation processes.

Requirements

• 5+ years of hands-on experience in designing and building scalable data pipelines.
• Proficiency in Graph Databases, including understanding of graph structures, relationships, and performance.
• Strong skills in Python, PySpark, and SQL for data transformation and logic building.
• Experience with web scraping and working with diverse data sources.
• English: Upper-intermediate (B2) or higher.
• Location: Must be based in Bulgaria, Poland, or Romania.

Nice to have

• Experience with TigerGraph (preferred) or Neo4j.
• Experience in supply chain or complex relationship modeling.

Culture & Benefits

• Flexible workplace policy: work from home or any office within your country.
• Dedicated career plans and support for technical and personal growth.
• Full access to Udemy learning courses and company-covered professional certifications.
• Opportunity to work with world-leading companies and collaborate within the hirify.global Data Community.