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 relationship modeling and pipeline optimization. Focus on implementing TigerGraph algorithms to detect anomalies and developing an AI layer to explain fraud patterns.

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

Company

A global digital solutions company providing data consulting and engineering services across various industries including healthcare, finance, and retail.

What you will do

• Develop and support a fraud investigation tool using graph and network analysis.
• Model complex relationships between entities such as devices and IPs to identify fraud signals.
• Implement and optimize graph-based data pipelines and analytics solutions.
• Utilize TigerGraph algorithms to detect clusters and hidden connections.
• Collaborate with analysts and stakeholders to refine fraud detection processes.
• Integrate an AI layer to provide actionable explanations for detected fraud patterns.

Requirements

• 5+ years of experience in designing and building scalable data pipelines.
• Proficiency with Graph Databases and understanding of graph structures 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 level or higher.
• Location: Must be based in Bulgaria, Poland, or Romania.

Nice to have

• Hands-on experience with TigerGraph or Neo4j.
• Experience in supply chain or complex relationship modeling.

Culture & Benefits

• Dedicated career plans for all roles to support professional growth.
• Full access to Udemy learning courses for continuous upskilling.
• Company-covered professional certifications.
• Opportunity to share knowledge within the internal hirify.global Data Community.
• Collaborative environment working with world-leading companies and experts.