BI Report Developer at Tech4 Ltd, Heybridge, £350 to £400 per Day

BI Report Developer - Sage / SQL / Power BI - is required by highly successful and well established manufacturing organisation.

12 month day rate contract, OUTSIDE IR35.

Role Overview

This new BI Report Developer position will be a key part of the organisation's technology transformation programme. The role will drive the evolution of data analysis and reporting capabilities, supporting business growth and digital transformation across manufacturing, supply chain, and customer engagement.

Key Responsibilities

• Lead on-site discovery workshops to accurately capture reporting requirements, translating them into technical specifications and success criteria.
• Design and build robust dashboards, reports, and live data extracts over Sage X3 and other databases, modelling best practices and governance using Sage Data & Analytics (ZapBI) and Power BI.
• Write performant Structured Query Language (SQL) scripts, including complex joins, window functions, and incremental loads.
• Apply advanced Microsoft Excel skills (Power Query, complex formulas, pivot tables, VBA/macros) to support ad hoc reporting and Finance’s live data needs.
• Implement data validation, reconciliation, and variance analysis to build trust in reported figures.
• Create and maintain a calculation/measure dictionary with business definitions, DAX expressions, filters, and caveats.
• Optimise dataset performance (column cardinality, aggregations, incremental refresh, composite models).
• Build intuitive, role-based dashboards with strong UX; apply row and object-level security as needed.
• Collaborate with Finance, Operations, and Sales on data readiness (staging, transformations, ETL).
• Provide ongoing support: answer stakeholder questions about metrics, explain calculations and data lineage, and triage issues.
• Document data sources, refresh schedules, dependencies, and change history; contribute to BI standards and governance.
• Ensure data quality, Row-Level Security (RLS), performance, documentation, and stakeholder communication.

Preferred/Ideal Experience & Skills

• Hands-on experience with Data Warehouses and Business Intelligence tooling.
• Fluency in Sage X3 within manufacturing and distribution organisations.
• Proficiency in Sage SEI or ZapBI (Sage Data & Analytics) and Power BI.
• Strong SQL skills, including advanced scripting and optimisation.
• Advanced Microsoft Excel capabilities, including Power Query, pivot tables, and VBA/macros.
• Experience in developing robust semantic models and authoring well-documented DAX calculations.
• Ability to implement and manage data validation, reconciliation, and variance analysis processes.
• Track record of building intuitive, secure, and role-based dashboards.
• Excellent communication skills for stakeholder engagement, requirements gathering, and ongoing support.
• Experience in documenting BI processes, data sources, and governance standards.
• Commitment to data quality, security, and continuous improvement.

Work Arrangement

• Initially based 2 - 3 days on-site for discovery and stakeholder relationship building, transitioning to a hybrid model for remote development, delivery, and support.

Based Maldon, Essex

12 month contract

£350-400 per day

OUTSIDE IR35