John Donnelly - Business Analyst | ContraWork by John DonnellyJohn Donnelly
Research, analysis & Six Sigma process improvement
Structured research and decision-support work designed to turn complex or information-heavy questions into clear findings, options, risks and practical next actions. The approach combines evidence gathering, comparison, analysis and structured reporting to help clients make better-informed decisions without unnecessary complexity. Designed a structured financial-data and reconciliation workflow for an owner-managed business, linking source records, bank activity, VAT treatment, cash information, payroll inputs and management reporting. The work focused on creating a repeatable process for coding, reconciliation, control and clearer decision-ready reporting. AI-assisted document and knowledge workflow designed to organise, structure and retrieve large volumes of information. The system combines searchable archive design, repeatable research methods, document retrieval, workflow controls and structured outputs to turn information-heavy projects into clearer, decision-ready work. Six Sigma Manufacturing | DOE & Statistical Process Optimisation
Applied Six Sigma and statistical process-improvement methods to manufacturing environments, using DMAIC, Design of Experiments, Gauge R&R, process-capability analysis, regression and production-data review to identify variation, root causes and improvement opportunities.
The work focused on converting operational data into practical actions — improving process stability, measurement reliability, capability and repeatability while supporting evidence-based manufacturing decisions.