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# Backend Software Engineer (Python)

- **Company:** The Emerald Group
- **Location:** Greater London, UK
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Unit Testing, C Sharp (Programming Language), Software as a Service, Cloud Computing, Continuous Integration, Data Files, Python (Programming Language), Object-Oriented Software Development, Software Engineering, Data Ingestion, Parallel Computation, Backend, Azure Service Fabric
- **Published:** August 26, 2026
- **Apply:** https://www.collegerecruiter.com/job/2815160219-backend-software-engineer-python

## About the Role

* Large Dataset Management: A track record of handling GB-scale data (4GB+) and addressing performance via vectorisation, parallelism, or memory optimisation.
 * Advanced Python Logic: Writing modular, production-quality code using classes/functions and addressing bottlenecks via chunking or asynchronous processing.
 * Analytical Pipelines: Building end-to-end pipelines that handle data ingestion, transformation, and modelling.
 * C# literacy: Ability to read and understand C# - not necessary to write, but understanding of cohesion between Python & C# is desirable.

## Description

Join a team developing a SaaS platform used to assess over £200bn of non-life insurance business. This is a mid-level software engineering role focused on production-grade Python development rather than research or one-off analysis. Hybrid role based in London (2 days per week in office)

You will work in a team of 15, collaborating with C# developers and actuarial data scientists to deliver scalable features.

The role

 * Technical Challenge: Take ownership of performance bottlenecks involving 4GB+ datasets.
 * Cloud Infrastructure: Utilize Azure PaaS tools including Functions, Batch, Blob/Table Storage, and CosmosDB.
 * Integration: Work on the integration and restructuring of Python and C# codebases to improve cohesion.
 * Standards: Apply software engineering best practices including OOP, unit testing, and CI/CD.

To be successful in this role, you must demonstrate specific experience in:

 * Large Dataset Management: A track record of handling GB-scale data (4GB+) and addressing performance via vectorisation, parallelism, or memory optimisation.
 * Advanced Python Logic: Writing modular, production-quality code using classes/functions and addressing bottlenecks via chunking or asynchronous processing.
 * Analytical Pipelines: Building end-to-end pipelines that handle data ingestion, transformation, and modelling.
 * C# literacy: Ability to read and understand C# - not necessary to write, but understanding of cohesion between Python & C# is desirable.


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