Summary
Overview
Work History
Education
Skills
References
Timeline
Generic
THERESIAMBEYU ERNEST ISAKA

THERESIAMBEYU ERNEST ISAKA

Data Analyst
Dar es Salaam

Summary

Motivated Data Scientist with a background in Mathematics and Statistics. I have practical experience in insurance, business, weather, and national statistics. I use machine learning, data analysis, and actuarial methods to solve real problems. I am good at explaining complex ideas in a simple way and enjoy working with teams to create useful solutions.

Overview

4
4
years of professional experience
2
2
Languages

Work History

Intern, Data Science & Risk Analysis

Actuarial & Risk Consulting Limited (ARC)
06.2025 - Current
  • Assisted in actuarial valuations, solvency reviews, and premium evaluations to support fair and sustainable insurance pricing.
  • Contributed to risk management and compliance, including stress testing, reinsurance analysis, and assisting in the development of insurance and risk policies and policy frameworks.
  • Assisted in developing and modifying predictive models for pensions and pricing, to strengthen long-term financial and pricing strategies.
  • Prepared technical reports, dashboards, and presentations for insurers, regulators, and clients, and collaborated with senior consultants to deliver data-driven recommendations.

Data Analytics Officer

Xfrey Ltd
09.2022 - 12.2023
  • Supervised data collection and made sure the data was secure and correct.
  • Analyzed data using Excel, Google Sheets, and Tableau to find useful insights.
  • Prepared reports that helped managers make better decisions.

Enumerator

National Bureau of Statistics (NBS)
07.2022 - 09.2022
  • Visited households to collect demographic data and check the accuracy of answers.
  • Entered and coded data into databases for national statistics use.

Data Officer

Tanzania Meteorology Authority (TMA)
08.2021 - 10.2021
  • Collected and processed weather data for aviation and forecasting.
  • Coded and sent weather messages to ensure people got correct information on time.

Education

MSc - Data Science

University of Dar Es Salaam
09-2026

BSc - Mathematics and Statistics

University of Dodoma
01.2022

Skills

Programming & Tools: Python, R, SQL, Excel, Tableau, Google Sheets, Stata, SPSS

References

Dr. Sarah Emerald, Osima, Manager of MI at TMA, sarah.osima@gmail.com, +255-755787878, TMA, Dar es Salaam


Mr. Erick Justin Mbogoro, Lecturer at UDOM, mbogoroerick40@gmail.com, +255-754740452, Dar es Salaam


Mr. Expery M. Massawe, Assistant Lecturer at UDOM, massawe94expery@gmail.com, +255-757903044, Dodoma

Timeline

Intern, Data Science & Risk Analysis

Actuarial & Risk Consulting Limited (ARC)
06.2025 - Current

Data Analytics Officer

Xfrey Ltd
09.2022 - 12.2023

Enumerator

National Bureau of Statistics (NBS)
07.2022 - 09.2022

Data Officer

Tanzania Meteorology Authority (TMA)
08.2021 - 10.2021

BSc - Mathematics and Statistics

University of Dodoma

MSc - Data Science

University of Dar Es Salaam
THERESIAMBEYU ERNEST ISAKAData Analyst