About me
I am a Senior Data Engineer with deep expertise in data governance, analytics engineering, and large-scale data platforms. My work focuses on turning high-volume, complex transactional data into trusted, decision-ready datasets used by Finance, Risk, Compliance, and Operations teams.
Across telecom and fintech domains, I have architected and owned end-to-end data pipelines—from ingestion and transformation to analytics, reporting, and monitoring. I bring strong hands-on experience in Python, SQL, and cloud platforms like AWS,GCP and Azure, with a proven ability to design scalable lakehouse and warehouse models.
Beyond building systems, I care deeply about data quality, governance, and reliability. I’ve implemented observability frameworks, standardized KPIs, reduced fraud exposure, and improved stakeholder trust by embedding quality controls throughout the data lifecycle.
Data Engineer & Python Developer.
Just a summary of what may be of importance to understand my brief story and appreciate what will follow when you fall to it!.
- Birthday: February 1997
- Location: NairobI, Kenya
- Email: peteropere3@gmail.com
- Freelance: Available
My path into tech was not accidental. It was shaped by curiosity, structured learning, and the influential mentorship of my undergraduate project supervisor; Dr. Ian Kaniu. His guidance introduced me to problem-solving through technology and set the foundation for my career in data engineering and analytics.
Today, I build systems that transform raw data into meaningful insights, always guided by the same curiosity that started it all.
Facts
During my short period of serving my good customers/clents with quality web dev services and data and database assistance, all I can say is am proud of the work and my clients. Many more happy days as I serve you!.
Happy Clients For the job well done
Projects For the good clients
Hours Of Support For serving you
Skills
My skills and experience with development programing languages and their respective frameworks and libraries are quiet exceptional, which ranges from CSS, Python and JavaScript. My knowledge of database management is also a plus in my analytics work.
SQL
CSS
JAVASCRIPT
REACT
BOOTSTRAP
PYTHON
GIT
DATABASE
Resume
Senior Data Engineer with 6 years of experience designing, building, and operating scalable batch and streaming data platforms across telecom and fintech environments. Proven track record of delivering robust, observable, and cost‑optimised data pipelines that power analytics, fraud detection, and executive decision‑making. Strong expertise in Python, SQL, Spark, dbt-style modeling, Airflow, Kafka, and cloud data platforms (Azure, Databricks). Recognized for mentoring junior engineers, enforcing data governance, and translating complex business requirements into trusted, production‑grade data solutions.
Sumary
Technical Skill
- Data Engineering & Pipelines: ETL/ELT design, batch & streaming pipelines, Apache Airflow, dbt, Synatic
- Databases & Warehousing: Oracle (PL/SQL), Azure Synapse Analytics, SQL Managed Instance, Databricks
- Programming: Python, SQL, Bash, JavaScript
- Data Analytics, Modeling & Governance: Data modeling, data quality frameworks, data governance standards
- Visualization & Reporting: Power BI, Metabase
- Cloud & Platforms: Microsoft Azure, AWS, Google Cloud Platform (GCP)
- Streaming & Integration: Apache Kafka, Spark Streaming
- DevOps & Automation: Git, CI/CD pipelines, Terraform, workflow automation
Education
Bachelor of Science (Physics)
2016 – 2020
University of Nairobi, Kenya
Graduated with Second Class Honors (Upper Division). The program developed a strong analytical and scientific foundation, emphasizing problem-solving, research, and quantitative analysis—skills that underpin my work in data engineering and analytics.
Certifications
- Certified Apprentice of Revenue Assurance - 2024 - GRAPA
- AWS Solutions Architect - 2023 - Amazon Web Services (AWS)
- Azure for the Data Engineer - 2022 - Microsoft
- Data Engineering with Python - 2022 - DataCamp
Professional Experience
Snr. Data Engineer / Revenue Assurance & Fraud Analytics Lead
Telkom Kenya Ltd, Nairobi (Nov 2023 - Present)
- Architected and owned high-volume data pipelines ingesting transactional data from OCS, CRM, mediation, roaming, and mobile money systems.
- Designed scalable lakehouse (silver/gold) data models supporting fraud monitoring, revenue assurance, regulatory reporting, and near real-time analytics.
- Implemented data quality and observability frameworks (completeness, accuracy, timeliness, consistency), reducing manual validation by 40%.
- Built and optimized Spark and SQL transformations, improving query performance and dashboard load times by 35%.
- Delivered executive Power BI dashboards used by Finance, Risk, and Operations, cutting incident triage and decision cycles by 50%.
- Led post-incident root cause analysis and engineered preventive controls, contributing to a 30%+ reduction in fraud exposure and revenue leakage.
Data Engineer & Python Developer
Nakala Analytics Ltd, Nairobi (Jan 2021 - Oct 2023)
- Designed and implemented data quality standards and validation rules across integrated payment gateways and transactional systems.
- Built automated data reconciliation and exception management workflows, significantly reducing manual review effort.
- Developed and maintained analytical datasets and data marts, ensuring consistency across reporting and downstream models.
- Partnered with compliance and analytics teams to automate regulatory and management reporting.
- Embedded data quality checks across the full data lifecycle, improving trust and audit readiness.
- Enforced production-readiness standards including documentation, version control, and monitoring.
Services
When it comes to serving my clients, am only limited to offering and delivering quality services. My skills and experience enables me to offer the best for my clients with the range of website development, designs, databases management and data analytics
Front-End Web Development
Develops websites that are very interactive, load at lightning speed and can be viewed on any device
Website Design
Design & develop stunning responsive websites that will give your business a strong online presence
Database Management
Website Management
Data Analytics
Academic Writings
Testimonials
CLIENTS
Happy withCustomers & Clients
If you need any industrial or personal solution I am available for you. Get the best and your happiness will guarenteed thereafter.
Omwanda O.
Founder P-WEB DigitalsWithout doubt one of the most talented developers out there. I always go back to Peter when I'm out of my depth and he's never failed to deliver what I ask for. Smart, trustworthy and professional. You won't be disappointed.
Omwanda O.
Founder P-WEB DigitalsWithout doubt one of the most talented developers out there. I always go back to Peter when I'm out of my depth and he's never failed to deliver what I ask for. Smart, trustworthy and professional. You won't be disappointed.
Omwanda O.
Founder P-WEB DigitalsWithout doubt one of the most talented developers out there. I always go back to Peter when I'm out of my depth and he's never failed to deliver what I ask for. Smart, trustworthy and professional. You won't be disappointed.
Omwanda O.
Founder P-WEB DigitalsWithout doubt one of the most talented developers out there. I always go back to Peter when I'm out of my depth and he's never failed to deliver what I ask for. Smart, trustworthy and professional. You won't be disappointed.
Omwanda O.
Founder P-WEB DigitalsWithout doubt one of the most talented developers out there. I always go back to Peter when I'm out of my depth and he's never failed to deliver what I ask for. Smart, trustworthy and professional. You won't be disappointed.
Contact
I am available and focused on helping companies and individuals grow and develop their goals by ensurering their quality online reach. Reach out for these services: Web design, content writing, training and data analytics.