Meletta Liza Mathew
Meletta Liza Mathew

Data Analyst | SQL Developer | Python

Open to offers · Member since 21 Oct 2026
Location
Warsaw, Poland
Desired salary
Confidential
Work preference
Remote Only
Experience level
Junior

About

Professional summary

I am a Data Analyst and SQL Developer with 1.5 years of software development experience, specializing in SQL, Python automation, database analysis, and data quality improvement.

I have experience designing scalable database schemas and optimizing complex SQL queries, indexes, normalization, and partitioning strategies to improve database performance and maintainability.

I build and maintain ETL and data pipelines using Python and Apache Airflow, helping automate data ingestion and processing while improving reliability and reducing manual work.

I have also developed backend features and integrations using SQL, Java, and HTML. I write unit and integration tests and troubleshoot production issues to support reliable deployments.

I work effectively with business analysts, QA teams, and project managers to translate business requirements into technical solutions, reports, documentation, and process improvements.

I hold a Master's degree in Computer Engineering with a focus on Applied Data Science and AI, and I am based in Warsaw, Poland.

Skills

23 capabilities

Tech stack & tools

Working toolkit

Data Stores

Experience

Career history

Analyst Programmer Ramco Systems

Designed scalable SQL database schemas to support anticipated data growth, using normalization, indexing, and partitioning strategies to improve performance and maintainability. Optimized complex SQL queries and database indexes to enhance query performance and system stability.

Built and maintained ETL and data pipelines using Apache Airflow and Python to automate data ingestion and processing, improve reliability, and reduce manual effort. Developed backend features and integrations using SQL, Java, and HTML, while creating unit and integration tests for production reliability.

Collaborated with business analysts, QA professionals, and project managers to translate requirements into technical designs, documentation, and deployment support. Investigated and resolved production issues to minimize user impact and provide ongoing system support.

Project Trainee Ramco Systems

Supported the software development lifecycle for enterprise projects by assisting with coding, debugging, and requirements analysis. Implemented and tested components under senior guidance.

Created test cases and technical documentation to improve maintainability and team handoffs. Assisted project managers with scheduling, progress tracking, and project documentation to support timely delivery.

Education

Learning history

Vistula University

Master of Science in Computer Engineering, Applied Data Science & AI

Mar Ephraem College of Engineering & Technology

Bachelor of Engineering, Computer Science & Engineering

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