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Achievements

Achievement: Pair ExtraordinaireAchievement: Pull Sharkx2Achievement: YOLO

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matidesalegn/README.md

Hi, I'm Matiwos Desalegn 👋

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🚀 关于 Me

Senior Data Engineer & AI/ML Engineer at Kifiya Financial Technology PLC in Addis Ababa, Ethiopia 🇪🇹

5+ years building with data and software (since 2021), including production data engineering at scale since 2024.

I architect and operate production data platforms for financial technology serving African markets - the full data lifecycle, from real-time CDC ingestion and lakehouse modeling to governed, BI-ready serving for multiple institutional partners.

Data Engineering

  • 🔭 Currently working on: Apache Iceberg medallion lakehouse, real-time CDC (Debezium/OLake), ClickHouse OLAP, lakehouse governance (OpenLineage, OpenMetadata, Ranger)
  • 🌱 Currently learning: Apache Flink stream processing, Snowflake
  • 🤖 AI/ML Focus: LLM orchestration with LangChain, LangGraph, CrewAI & RAG systems; Feast feature store
  • 🔬 Research: Amharic SLM quantization (paper in progress, EMNLP 2026 MRL target); Ethiopian-language RAG & OCR
  • 🌍 Specialization: Multilingual AI for Ethiopian languages (Amharic, Afan Oromo)
  • 💼 Open to: Senior Data Engineer, Data Platform & AI/ML opportunities
  • 💬 Ask me about: Iceberg, Trino, CDC, ClickHouse, AWS data services, or LLM deployment

🏆 Key Achievements

📊 Data Engineering

  • ~60% reduction in pipeline failures (Mage AI to Airflow migration)
  • 146/146 automated data-quality assertions passing in production
  • ~39M rows/day ingested across 34 tables x 5 institutional partners
  • 300+ tables cataloged for SQL analytics in the first company lakehouse

⚙️ Platform & Reliability

  • <200ms p95 credit-decision API on Kubernetes (EKS)
  • 95%+ CPU crisis resolved via 39 staggered pg_cron materialized views
  • 30+ production Airflow DAGs with retries, DQ checks & alerting
  • CI/CD standardization via GitLab & GitHub 操作

🛠️ Technical Stack

Data Engineering & Big Data

Apache Iceberg Trino Apache Spark Apache Kafka Apache Airflow dbt Debezium OLake Airbyte Redpanda Feast Mage AI

Data Governance & Quality

OpenLineage Marquez OpenMetadata Apache Ranger

AWS Cloud Services

AWS Amazon S3 AWS Glue Amazon EMR AWS DMS Amazon Athena

Databases & Warehouses

PostgreSQL Amazon Redshift ClickHouse MySQL MongoDB Neo4j Firebase

AI/ML & LLM Engineering

LangChain Python HuggingFace Ollama

DevOps, MLOps & Observability

Docker Kubernetes GitLab CI GitHub 操作 Prometheus Grafana Terraform

🔒 Where the production work lives

My day-to-day engineering (Iceberg medallion lakehouse, CDC replication at 200+ table scale, ClickHouse analytics, dbt on Trino/Redshift, lakehouse governance) lives in private employer repositories. The public repos below are earlier ML/analytics projects and independent research; for production war stories, see my Medium and LinkedIn.

📊 GitHub Stats

GitHub Streak

🌐 组织

Building multilingual AI solutions for Ethiopian languages, including Amharic and Afan Oromo.

📚 Writing

🤝 Let's Connect

Email LinkedIn Portfolio Medium

"Turning data into decisions and algorithms into impact."

🇪🇹 Building Africa's Data Future from Addis Ababa

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