Umar HarisDATA SCIENTIST

03 / EXPERIENCE

A continuous thread.

Full experience in my CV

SEP 2023 — JAN 2026
United Kingdom

Call Assist Ltd

Data Scientist

Production GenAI, forecasting and the infrastructure behind them. Built call-analytics pipelines and deployed ML services on Azure.

22% better planning accuracy · 35% less reporting time

More about this role

Integrated a Copilot chatbot into agent workflows, served pipeline outputs through FastAPI, and tracked experiments with MLflow. Built Azure SQL and Databricks ETL pipelines and Power BI dashboards for operational KPIs.

Automated validation and reporting saved 10+ analyst hours a week at approximately 98% accuracy.

OCT 2022 — AUG 2023
London, United Kingdom

System Engineering

Junior Data Scientist · Part-time

Contributed to a purchase-probability recommendation engine while completing my MSc. Feature engineering, classical ML, imbalanced classification and A/B test analysis.

DEC 2021 — SEP 2022
India

Cognizant

Associate Analyst

Data quality pipelines, policy validation and enterprise reporting. Automated structured checks and built dashboards for governance and performance.

7,200+ monthly records · 99% accuracy

JAN 2020 — DEC 2021
Part-time

Inletware Ltd

Data Analyst

Pharmaceutical e-commerce analytics. Prepared transactional data, forecast demand and built 30+ dashboards covering sales, inventory and fulfilment.

THE TOOLKIT

From first query
to deployment.

Understand & prepare
Python, SQL, Pandas, NumPy, Databricks
Model & evaluate
scikit-learn, NLP, time series, LLM APIs, A/B testing
Ship & operate
Azure, FastAPI, MLflow, Docker, GitHub Actions
Explain & inform
Power BI, Tableau, stakeholder collaboration