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Skills

  • API Development
  • C#
  • Data Management
  • Data Visualization
  • Google Sheets
  • Microsoft Excel
  • Python
  • Research
  • Spreadsheets
  • VLOOKUP

Services

  • Excel Automation, Data Cleanup & QA

    $35/hr Starting at $50 Ongoing

    Dedicated Resource

    I build reliable Excel and Google Sheets workbooks, clean and validate business datasets, and automate repetitive research and reporting tasks. Deliverables can include formula-driven trackers, projections,...

    API DevelopmentC#Data ManagementData VisualizationGoogle Sheets

About

Fast, accurate automation and data systems for real business work.

I’m a systems-focused developer and technical problem solver based in Madrid. I help businesses turn repetitive, error-prone work into reliable workflows: Excel and Google Sheets models, data cleanup and validation, web research, API integrations, and lightweight automation in Python and C#/.NET. My work emphasizes accuracy, clear documentation, maintainable solutions, and fast communication. Through Kalytera Systems, I also work across web platforms, deployment, video systems, and operational tooling. For clearly scoped projects, I can often start immediately and deliver within 24–72 hours.

Work Terms

Available Monday–Friday, with limited weekend availability for urgent milestones. Fixed-price work is broken into clear deliverables and funded through Guru SafePay before work begins. Hourly work is tracked transparently. Communication stays in Guru messages, with progress updates at agreed checkpoints. One reasonable revision is included for fixed-price deliverables unless the scope changes. Source files and concise handover notes are included. I do not require off-platform payment.