Fractional Lead Graph Engineer

Salary: £49,000 - 89,000 per year

Requirements:

• Significant commercial experience designing and scaling enterprise graph databases, distributed data systems or high-volume event-driven backends
• Strong production experience with Neo4j and graph query languages such as Cypher or Gremlin
• Deep understanding of graph modelling, distributed systems, data architecture and performance optimisation
• Experience with streaming technologies such as Apache Kafka and Flink
• Able to work hands-on while providing senior architectural guidance within an early-stage environment
• Experience within fintech, accounting, payments, banking or another data-intensive regulated sector would be advantageous

Responsibilities:

• Design and develop a scalable graph database architecture using Neo4j Enterprise
• Create graph schemas that represent financial structures, tax rules, organisational hierarchies and operational relationships
• Build streaming data pipelines that ingest and connect structured transactional data with unstructured business information
• Optimise graph queries, clustering, sharding and sub-graph extraction for high-throughput, low-latency use cases
• Ensure graph data can be supplied efficiently and reliably to machine learning and inference services
• Establish appropriate engineering standards for data integrity, resilience, observability and documentation
• Work collaboratively with backend, AI and infrastructure specialists, transferring knowledge into the wider engineering team

Technologies:

• AI
• Backend
• Flink
• Graph Database
• Kafka
• Machine Learning
• Neo4J

More:

Our client is an early-stage technology business developing an innovative financial intelligence platform. Our product will connect complex operational and financial information through a sophisticated knowledge graph, supporting real-time analysis, financial integrity and the detection of risk and anomalies. We are building the technical foundations of the platform and are looking for an experienced graph and distributed systems specialist who can provide senior-level expertise on a fractional basis. This is a fractional role in London, offering competitive remuneration for a 12-day-per-week commitment, flexible working arrangements, and the opportunity to shape a technically ambitious platform at an early stage while working alongside experienced technical and financial specialists.

last updated 38 week of 2026