Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Hi, I’m Sherif Ejiwunmi, a data- and process-driven professional with 8+ years’ experience in end-to-end process mapping, data migration design, and ETL pipeline development. I excel at turning complex data into actionable insights and measurable business value, primarily in SQL Server environments, with a proven record of automating workflows and reducing operational bottlenecks. I’m currently expanding my technical toolkit with Python to transition into data engineering, while continuing to deliver impact through rigorous requirements gathering, process analysis, and data quality improvements. I enjoy collaborating across business and technical teams to drive meaningful change and scalable solutions.…Hi, I’m Sherif Ejiwunmi, a data- and process-driven professional with 8+ years’ experience in end-to-end process mapping, data migration design, and ETL pipeline development. I excel at turning complex data into actionable insights and measurable business value, primarily in SQL Server environments, with a proven record of automating workflows and reducing operational bottlenecks. I’m currently expanding my technical toolkit with Python to transition into data engineering, while continuing to deliver impact through rigorous requirements gathering, process analysis, and data quality improvements. I enjoy collaborating across business and technical teams to drive meaningful change and scalable solutions.

Sherif Ejiwunmi

Data Analyst, Data Scientist, Data Visualizer, +2





Hi, I’m Sherif Ejiwunmi, a data- and process-driven professional with 8+ years’ experience in end-to-end process mapping, data migration design, and ETL pipeline development. I excel at turning complex data into actionable insights and measurable business value, primarily in SQL Server environments, with a proven record of automating workflows and reducing operational bottlenecks. I’m currently expanding my technical toolkit with Python to transition into data engineering, while continuing to deliver impact through rigorous requirements gathering, process analysis, and data quality improvements. I enjoy collaborating across business and technical teams to drive meaningful change and scalable solutions.…Hi, I’m Sherif Ejiwunmi, a data- and process-driven professional with 8+ years’ experience in end-to-end process mapping, data migration design, and ETL pipeline development. I excel at turning complex data into actionable insights and measurable business value, primarily in SQL Server environments, with a proven record of automating workflows and reducing operational bottlenecks. I’m currently expanding my technical toolkit with Python to transition into data engineering, while continuing to deliver impact through rigorous requirements gathering, process analysis, and data quality improvements. I enjoy collaborating across business and technical teams to drive meaningful change and scalable solutions.

Available to hire

Hi, I’m Sherif Ejiwunmi, a data- and process-driven professional with 8+ years’ experience in end-to-end process mapping, data migration design, and ETL pipeline development. I excel at turning complex data into actionable insights and measurable business value, primarily in SQL Server environments, with a proven record of automating workflows and reducing operational bottlenecks.

I’m currently expanding my technical toolkit with Python to transition into data engineering, while continuing to deliver impact through rigorous requirements gathering, process analysis, and data quality improvements. I enjoy collaborating across business and technical teams to drive meaningful change and scalable solutions.

Skills

Experience Level

Expert

Expert

Expert

Intermediate

Intermediate

Work Experience

Senior Business Data Analyst at Bury Council

August 31, 2022 - August 31, 2022

Designed and implemented a children’s services data warehouse centralising data from Microsoft Access and Excel into a centralised SQL Server. Collaborated with senior management to prioritise business requirements and identify opportunities for process and data improvements. Conducted workshops to understand data within each service, mapped data flows, and defined ETL processes using SSIS. Trained Analysts on Power BI and SSMS. Built automated ETL pipelines that reduced the COVID-19 reporting production effort by 80%.

Business Analyst at Kaluza

August 1, 2022 - November 5, 2025

Led end-to-end business requirements gathering for digital transformation initiatives, delivering detailed documentation with full traceability. Mapped and optimised business processes using modelling techniques to drive efficiency and reduce bottlenecks. Developed business cases and evaluated current vs. future states to inform solution design. Collaborated with data and engineering teams to deliver functional improvements with measurable business value. Key achievements included reducing tariff-change processing time from minutes to seconds and scaling capacity to 2,000+ monthly requests; cutting contract amendment time to seconds/minutes and enabling a one-click solution that reduced client tickets by 70%; informing launch of new propositions by evaluating customer journeys and providing actionable insights.

Business Analyst at CHEP

January 31, 2021 - January 31, 2021

Delivered system changes for the Account Management team to drive performance, leading requirements gathering, design, build, test, and phased implementation of the Account Management application using SCRUM; led a logistics project using a waterfall approach; facilitated UAT planning and analysis. Acted as a business partner for Logistics to create metrics and KPIs to drive sales growth. Managed ongoing master data validation, maintenance, and data extracts; trained Performance Officers and Reporting Analysts on Power BI and SMSS.

Insights Analyst at CHEP

October 31, 2018 - October 31, 2018

Generated insights and recommendations from raw data to influence strategic decisions. Built reports and dashboards in Power BI and automated bespoke reports. Delivered technical training on reporting tools and collaborated with international teams to drive standardisation.

Business Analyst at Sopra Steria

October 31, 2017 - October 31, 2017

Initiated monthly brainstorming sessions with stakeholders to gather improvement ideas. Created a rich picture diagram to understand the organisation’s current problems and outline data-focused improvements; contributed to data standardisation efforts.

Data Analyst at Nordoff Robbins

March 31, 2017 - March 31, 2017

Elicited requirements to design the department, created an Entity Relationship Diagram (ERD) to outline database structure, and developed SQL queries. Communicated requirements to wider teams to ensure alignment and data quality.