C# Time-Series Engineer at djr, Watford, 4 Months, to £550 per day Outside IR35

Senior Time-Series Engineer (Python or .NET) - Contract
£550/day
Hybrid (Watford)
4 Months
Outside IR35

We're supporting a technology-led organisation building high-throughput, event-driven systems operating at scale.
They are looking for a Senior C# Engineer with proven time-series database experience to join a critical platform project.
This is not a general Back End role. Time-series experience is essential and will be tested in depth.

What You'll Be Doing

• Building high-performance Back End services in C#/.NET
• Working directly with time-series databases (Azure Data Explorer/Kusto or InfluxDB)
• Designing and optimising data ingestion pipelines for high-volume event data
• Modelling data for efficient time-based querying
• Implementing partitioning strategies, retention policies, and downsampling approaches
• Improving query performance across large datasets
• Working within event-driven systems using Azure Service Bus

• Strong C#/.NET Back End engineering experience

Proven, hands-on experience with at least one:

• one of these: Azure Data Explorer (ADX/Kusto) or InfluxDB or TimescaleDB.
• Or a comparable time-series databas

Demonstrable experience:

• Designing time-series data models
• Building ingestion pipelines
• Optimising queries at scale
• Working on production systems handling high data volumes

• C#/.NET
• Azure (Functions, AKS, Storage)
• Azure Service Bus
• ADX/Kusto or InfluxDB
• Docker/Kubernetes