Natural Processing Engineer

Vallum Associates; City Of London; Remote; GBP 40,000 - 60,000; Full time

Job summary

A leading consulting firm is looking for an experienced AI/NLP specialist for a 3-month remote contract in the UK. The successful candidate will manage a small team focusing on applying AI and natural language processing for Quality Assurance. This role requires strong skills in Python and SQL, as well as hands-on experience in LLM prompt engineering. Join us to make a significant impact in a real-world business context.

Qualifications

• Proven experience in AI/NLP projects in production.
• Strong logic design for transcript summarisation and automated QA validation.
• Experience building evaluation frameworks for AI/NLP solutions.

Responsibilities

• Shape the approach to prompt design and optimisation using LLMs.
• Define and implement logic to summarise call transcripts.
• Work with internal experts to accelerate delivery.

Skills

Python

SQL

dbt

Airflow

LLM prompt engineering

Snowflake Cortex

AWS Bedrock

Job description

Job description

Contract:3 months (extendable)

Location:Remote (UK-based candidates )

IR35:Outside IR35

We are seeking an experienced AI/NLP specialist to join on a 3-month extendable contract. The successful candidate will manage a small, capable team tasked with applying AI and natural processing to perform Quality Assurance. We want someone who can bring practical experience and a track record of delivering AI/NLP projects in production. You’ll know what works, what doesn’t, and how to avoid common pitfalls. This is an opportunity to make a significant impact by helping an existing team move faster and smarter with applied AI/NLP in a real-world business context.

Responsibilities:

• Shape the approach to prompt design, evaluation, and optimisation using LLMs.
• Define and implement logic to summarise call transcripts and validate against QA checklists.
• Build an evaluation framework to test and measure model performance.
• Assess trade-offs between platforms and models (e.g. Snowflake Cortex vs AWS Bedrock) for cost, performance, and suitability.
• Work with existing internal experts to accelerate delivery and inject proven experience into the project.

Primary Skills

• Strong background in Python, SQL, dbt, Airflow.
• Hands-on experience with LLM prompt engineering (framing prompts, evaluating outputs, managing prompts with LangChain).
• Familiarity with Snowflake Cortex and AWS Bedrock.
• Ability to compare model performance/costs, including fine-tuning and optimising smaller models.
• Experience building logic for transcript summarisation and automated QA validation.
• Design and implementation of evaluation frameworks for AI/NLP solutions.

Nice to Have (Engineering Skills)

• Integrating LLM APIs to process text at scale via Snowflake Cortex or AWS Bedrock.
• Building APIs on AWS to connect systems (e.g. Slack, Excel, CRM platforms).
• Knowledge of data security and governance practices when working with PII data.

If this sounds like an opportunity you are interested in, apply now for an immediate review