Data Wrangler (Contract)

£600-£700 per day | Inside IR35 Initial contract until June with strong extension potential

Harnham are supporting a large-scale transformation programme within a global transport and logistics group, as they continue to scale their data and AI capabilities across multiple operational functions.

This role sits within a high-impact transformation team focused on building analytical products and optimisation solutions to improve complex operational processes and supply chain performance.

The team is delivering data-driven solutions across operational domains, with the long-term goal of scaling these products across other business units.

This position bridges data engineering and analytics, focusing on preparing, analysing, and validating data before it feeds into a cloud-based analytics platform.

You will transform complex operational datasets into actionable insights and dashboards, supporting rapid decision-making.

The environment is highly collaborative, with analysts and engineers problem-solving together to tackle complex operational challenges and deliver high-value prototypes.

• Analyse and prepare datasets prior to ETL ingestion

• Work with SQL, Python, and Snowflake to explore, clean, and validate operational data

• Build prototypes and MVP dashboards to demonstrate value quickly

• Collaborate with analytics and optimisation teams on modelling initiatives

• Deliver clear visualisations and insights for operational stakeholders

• Identify data issues and ensure trustworthiness

• Support optimisation of resource planning, logistics, and operations

Required:

• Strong SQL and Python skills

• Experience with Snowflake or modern cloud data platforms

• Experience preparing and analysing data pre-ETL

• Experience building dashboards or visualisations (Power BI, Tableau, Looker, or similar)

• Strong analytical mindset with the ability to translate data into business value

Preferred:

• Experience with AWS environments

• Familiarity with modern ETL frameworks

• Experience collaborating with data science or optimisation teams

The ideal candidate will be:

• Highly analytical and proactive

• Comfortable in fast-moving, ambiguous environments

• Able to turn imperfect data into usable insights

• Confident communicating with stakeholders across multiple functions

• Work on a major operational transformation programme

• Build analytics products that directly influence high-value decisions

• Collaborate with cross-functional analytics, engineering, and operations teams

• Opportunity for long-term contract extensions and future projects

Interested?

Apply via Harnham or contact us directly for a confidential discussion about this opportunity.