Senior AI/Data Engineer — Build Reliable LLM Data Pipelines

present of AI; Greater London; Hybrid; GBP 65,000 - 90,000; Full time

Job summary

Codat is hiring to build the data and reasoning systems behind an AI assistant that helps bankers answer business client questions. The role requires owning pipelines, data definitions and tests end-to-end, with strong backend coding in C# or Python and depth in at least one data tool.

The candidate will gain hands-on experience with a side model, tool servers, and evals that ensure trustworthy outputs on real small business financial data, aligning with Codat's advisory platform for commercial

Qualifications

• Candidates should have built production systems from scratch.
• Experience serving data to language models.
• Strong backend coding in C# or Python required.
• Proficiency with SQL, Spark or dbt as part of data tooling.
• Familiarity with CI/CD and cloud observability practices.

Responsibilities

• Build data and reasoning systems behind an AI assistant used by bankers.
• Own pipelines, definitions and tests end-to-end.
• Collaborate to provide reliable ground truth for model reasoning.

Skills

Production systems

LLM data serving

C# or Python

SQL

Spark

dbt

CI/CD

Cloud observability

Tools

dbt

Spark

Job description

Codat is hiring to build the data and reasoning systems behind an AI assistant that helps bankers answer business client questions. The role requires owning pipelines, data definitions and tests end-to-end, with strong backend coding in C# or Python and depth in at least one data tool.

The candidate will gain hands-on experience with a side model, tool servers, and evals that ensure trustworthy outputs on real small business financial data, aligning with Codat's advisory platform for commercial