Data Scientist Engineer
Resume:
Data Scientist & Data Engineer(AWS)
Mobile LinkedIn: linkedin.com/in/christopher-wachira-7bb9b11b1
Emai GitHub: github.com/chriswachir/
Location: Nairobi, Kenya Portifolio:portfolio
into scalable data warehouses. Possessing a strong foundation in data engineering principles, I excel in delivering data-driven solutions that drive business value.
Skills and Technologies
series Pandas Matplotlib PySpark Tensorflow Numpy S3 Scikit Learn Gitlab Lambda Computer Vision Experience
Role: Cloud Engineer(AWS):
Cellulant, Nairobi, Kenya Nov 2022 - Current
-Developed ETL workflows using Airflow to automate data ingestion, transformation, and loading into AWS Redshift, reducing manual intervention by 60% from production databases, as well as monitoring scripts.
- Monitored data lakes, reducing replication lag to under 10 minutes and ensuring 100% no duplicated data.
- Pioneered new data technologies, boosting analysis capabilities by 25%.
- Developed cost cloud intelligence dashboards for AWS on QuickSight, leading to a 30% cost reduction.
- Collaborated with data scientists and analysts to design and implement data models for market analysis and prediction, optimizing query performance by 40%.
- Authored comprehensive documentation, streamlining onboarding by 70%.
- Leveraged AWS S3 for cost-effective and scalable data storage, implementing data governance policies to ensure data quality and security.
- Managed Datalakes and facilitated user onboarding and platform adoption, promoting data-driven decision-making by 30%.
- Implemented data residency protocols across different countries, mitigating data breach risks by 90%. Role: Data Scientist: Freelance (Remote) Sep 2021 - Current
- Executed data mining, extraction, and cleaning, streamlining preparation processes, analysis, visualization and reporting.
- Engineered and deployed ML models for diverse applications.
- Performed hyperparameter tuning to refine model parameters, shortening training durations.
- Designed and conducted A/B tests, evaluating model impacts on key business metrics. Role: Data (Internship): Cellulant, Nairobi, Kenya March 2022 - Nov 2022
- Developed an onboarding FAQs chatbot, reducing support queries by 70%.
- Conducted remittance data processing, reducing debugging and downtime reaction time by 30%. Education and Professional Qualification
- Bachelor of Science in Statistics, Mount Kenya University (2022)
- Applied Data Science, Zalego Academy (2021)
- Certificate in Data Engineering in AWS, Coursera (2023) Projects
Role: Data Engineer
Technologies: Python, AWS (S3, DMS, Redshift)
Project Overview: Built a robust data pipeline to ingest, process, and store remittance data from multiple production databases to a aws data lake. Implemented data quality checks and transformations to ensure data accuracy. Created a data warehouse in Redshift for efficient querying and analysis. Collaborated with analysts to develop dashboards and reports to provide insights into sales trends, customer behavior, and product performance.
: ***************@*****.***
Joshua Mumo Kyalo
Copywriting and content refinement Video captioning and script editing SQL Redshift Microsoft Excel Machine Learning AWS Adv Experienced Copywriter with over 5 years of expertise in refining and reviewing content for various media platforms. Proven ability to leverage big data technologies and cloud-native services to extract, transform, and load large datasets Professional Summary
& Copywriting and content refinement Video captioning and script editing. Professional Summary
Experienced copywriter with over 5 years of expertise in refining and reviewing content for various media platforms. Skilled in Key Skills
1. Copywriting and content refinement
2. Video captioning and script editing
3. Familiarity with annotation platforms
4. Attention to detail and contextual accuracy
5. Expertise in tailoring content for different audiences and platforms Professional Experience
Copywriting Specialist
Freelance / Agency Projects 2018 – Present]
Refined and reviewed captions and scripts for over 500 video projects, ensuring clarity, cultural relevance, and audience enga Collaborated with creative teams to create high-quality content for marketing, film reviews, and online educational platforms. Used various tools and platforms to edit and enhance auto-generated content for optimal readability and impact. Content Reviewer
Cloudworkers [ 2016 – 2021]
Reviewed and optimized client-provided content for grammar, syntax, and tone consistency. Improved caption quality for training AI models by ensuring captions represented video content accurately. Contributed to the development of training materials for new team members in content refinement. Education
Bachelor’s Degree in English Language and Literature
[Oxford University], [Graduation Year -2012]
Languages
English: Fluent
[Other Languages, French, Swahili, Spanish ]
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