Martin Wanjiru

Martin Wanjiru

Data Engineer

Meta

Biography

Martin is a Data Engineer who defines data as the new oil. He appreciates the crucial role data plays in aiding product teams to make data-driven decisions. For this reason, he take pride in being among the team that builds and maintains data artifacts that are used by data scientists and analysts to draw insights and make informed recommendations to product teams. He strives to learn and incorporate new and more effective ways to build and maintain data infrastructure. When he wants to take a breather, he plays table tennis, badminton, squash, or FIFA on play station!

Interests

  • Data Engineer
  • Data Visualization
  • Machine Learning

Education

  • Bachelor of Science in Mathematics, 2018

    Jomo Kenyatta University of Agriculture and Technology

Skills

R

90%

SQL

90%

Python

80%

Experience

 
 
 
 
 

Data Engineer

Meta Platforms, Inc.

May 2022 – Present London, United Kingdon

Responsibilities include:

  • Partner with leadership, engineers, program managers and data scientists to understand data needs
  • Apply proven expertise and build high-performance scalable data warehouses
  • Design, build and launch efficient & reliable data pipelines to move and transform data (both large and small amounts)
  • Securely source external data from numerous partners
  • Intelligently design data models for optimal storage and retrieval
  • Deploy inclusive data quality checks to ensure high quality of data
  • Optimize existing pipelines and maintain of all domain-related data pipelines
  • Ownership of the end-to-end data engineering component of the solution
  • Support on-call shift as needed to support the team
  • Design and develop new systems in partnership with software engineers to enable quick and easy consumption of data
 
 
 
 
 

Data Analyst

Apollo Agriculture

Nov 2020 – Mar 2022 Nairobi, Kenya

Responsibilities include:

  • Use Stitch Data Loader to integrate various data sources to the BI Warehouse (EL part of ELT process)
  • Use DBT to do data transformation (T part of the ELT process)in the warehouse and Gitlab CI for continuous integrations.
  • Create ad-hoc queries and dashboards on Redash
  • Create dashboards for different business processes on Tableau
  • Create API’s in Flask (python) to enable users access desired data from the BI warehouse
 
 
 
 
 

Data Analyst

Branch International

Jan 2020 – May 2020 Nairobi, Kenya

Responsibilities include:

  • Produce daily, weekly and monthly strategic and useful reports and insights that can be used directly to improve collections across all delinquency buckets
  • Continuously support the servicing and collection manager in monitoring and evaluating the outsourced agencies performance
  • Using SQL, derive borrower data
  • Analyze collection and repayment trends, produce solid reports that can be used for decision making with strategic and useful insights.
  • Support the rest of the day to day activities for the servicing and collections team
  • Identify gaps and areas for efficiency improvement in servicing and collections
  • Analyze the effectiveness of our servicing and collection efforts and suggest improvements
  • Work with departmental managers to outline the specific data needs for each business function
  • Proactively identify analytical and reporting gaps and propose new or make improvements to existing reports
  • Interpret data, analyze results using statistical techniques and provide ongoing reports
 
 
 
 
 

Business Intelligence Analyst

Kenya Revenue Authority

Jul 2019 – Dec 2019 Nairobi, Kenya

Responsibilities include:

  • Collaborative efforts with colleagues to manage BI solutions
  • Creating visualizations from business data using OBIEE
  • Creating dashboards required for internal use.
  • Data Analysis and presentations at department executive level.
  • Trend and behavioral analysis on taxpayers
  • Using SQL to service data requests from different departments
 
 
 
 
 

Data Analyst

Strategic Synergy Consultants Limited

Jul 2019 – Dec 2019 Nairobi, Kenya

Responsibilities include:

  • Preparing online survey tools to be used for data collection
  • Data Cleaning and preparation for analysis
  • Data Analysis and presentation of results and findings to clients
  • Presentation Data Analysis Findings

Recent Posts

Password Strength Meter in R

Introdution Passwords. Keys to our riches, or our personal info. Equivalent to the keys to a safe box if this was 1967. But its 2020, so you’ve put most of your stuff online.

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