Junior Data Scientist at Pezesha

Junior Data Scientist at Pezesha | Iko Kazi

Role Overview

As a Junior Data Scientist, you will support the Data Team in turning raw data into actionable insights that inform credit, product, operations, and business decisions. You will work on real business problems involving customer behavior, lending performance, transaction data, credit risk, and operational analytics. You will also have opportunities to contribute to machine learning and credit-scoring projects under the guidance of senior members of the team. The ideal candidate is curious, analytical, comfortable working with data, and eager to learn.

Core Responsibilities

Data Analysis & Reporting

Write SQL queries to extract, clean, transform and analyze data.
Support the preparation of recurring business and portfolio reports.
Conduct exploratory data analysis to identify trends, patterns, and anomalies.
Support data requests from Credit, Product, Operations, Finance, and other teams.
Help validate reported metrics and investigate discrepancies in data.

Credit & Portfolio Analytics

Conduct analysis of loan repayment and customer behavior.
Analyze lending metrics such as repayment rates, PAR, DPD, disbursements, collections, and portfolio performance.
Perform customer segmentation analysis.
Support monitoring of credit risk indicators and model performance.
Contribute to credit scoring improvement ideas.

Insights & Reporting

Respond to data and analysis requests from cross-functional teams (Operations, Product, Finance, Credit).
Prepare weekly and monthly reports for internal stakeholders and external lenders, covering portfolio performance and borrower analytics.
Support ad-hoc data deep dives to identify performance trends, risks, or operational issues.

Model Experimentation Support

Work closely with senior data scientists to prepare datasets and conduct performance evaluations for machine learning and scorecard prototypes.
Participate in feature engineering, validation testing, and performance tracking of classification and credit scoring models.

Documentation & Best Practices

Maintain clear, up-to-date documentation for datasets, metrics definitions, SQL queries, ETL workflows, and dashboards.
Contribute to a shared knowledge base including SQL snippets, data dictionaries, and ETL logic to support collaboration and onboarding.
Follow and promote data quality, QA, and reproducibility best practices.

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