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aquinas_josiah

Josiah

@aquinas_josiah

Data Engineer

Kenya
English
About me
I’m a Data Analyst and Data Engineer with 3+ years of experience helping businesses transform raw data into clean, reliable, and actionable information. I work with SQL, Python, PostgreSQL, Pandas, Excel, Tableau, APIs, and ETL. I can help with data cleaning and analysis, SQL queries, dashboards and visualization, database management, API data extraction, and ETL pipelines. My focus is simple: accurate work, reliable solutions, clear communication, and delivering data that helps clients make better decisions.... Read more

Skills

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aquinas_josiah
Josiah
Offline • 
Average response time: 1 hour

See my services

Data Analytics Consultation
I will clean and analyze your data using excel, sql and python
From$15 / projectMore details
Database Development
I will write sql queries and manage your postgresql database
From$15 / projectMore details

Portfolio

Work experience

Freelancing_Career

Data analyst & Data Engineer

Freelancing Career • Full-time

Feb 2023 - Present • 3 yrs 7 mos

Analyze, clean, and transform business data using SQL, Python, Pandas, Excel, and PostgreSQL. Perform exploratory data analysis, identify trends, develop reports and Tableau visualizations, and prepare reliable datasets for business decision-making. Develop and maintain ETL workflows for extracting, transforming, validating, and loading data from multiple sources. Work with APIs, relational databases, data modelling, data-quality checks, and pipeline automation to deliver accurate, analysis-ready data.