About Me

I’m an automation consultant and engineer focused on AI-driven automation, cloud-native security, and data analytics. I design and deliver reliable systems and scripts with defined scope, transparent pricing, and documented handover. With training in Computer Science and Environmental Engineering, I build rigorous, sustainable solutions. I work mainly with Python, JavaScript, and R, using GIS when needed. Berlin-based and multilingual (EN/ES/DE), I turn complex requirements into practical, maintainable outcomes-shipped with reproducible code and clear documentation.

If you need an automation engineer to plan and ship practical automation or a small implementation, start here.

Remote: Worldwide
Timezone: WAT (UTC+1) · CET/CEST
Availability: Accepting new projects
Response: Within 1 business day
Compliance: NDA/DPA on request

What I do

Predictive Analytics & ML

Design classification/forecasting workflows in Python-clean data, train/evaluate models, and deliver clear notebooks & reports your team can reuse.

Custom Script Development

Design dependable automations and utilities in Python or Bash-file and media workflows, backups, data cleanup, scheduled jobs, and one-command updates; includes code reviews and fixes when needed.

Security Hardening and Reliability

Improve the safety and uptime of your systems-sensible defaults, access control, patching, tested backups and restores, lightweight monitoring, and a concise runbook for ongoing care.

Custom Self-Hosted Systems

Build practical, self-hosted solutions and small automations that simplify daily computing: Raspberry Pi servers, Docker, private clouds, home media, secure remote access, etc.

WordPress Engineering

Build and improve WordPress sites and shops: PHP/JS features, WooCommerce/Shopify pricing/filtering, SEO basics, and streamlined booking/checkout flows.

AI Chatbots & Workflows

Integrate an AI assistant into your website or support flow-capture questions, route to the right channel, and measure impact; handover with docs.

How I Work

1. intake

2. proposal in 2 business days

3. build

4. handover (docs/video)

5. 14-days support

Tools I Work With

Languages & Scripting

Bash · Python · PHP · JavaScript

Systems & Devices

Debian/Ubuntu · Raspberry Pi OS · macOS · Windows · Raspberry Pi · mini-PC · VPS

Containers & Ops

Docker · Docker Compose · Portainer

Networking & Remote Access

SSH · WireGuard · OpenVPN · DNS/DHCP

Storage & Sharing

SMB/Samba · NFS · SFTP · exFAT

Self-Hosted Apps

Nextcloud · FileBrowser · Paperless-NGX · Transmission/OpenVPN · Aria2

Media Servers

Plex · Jellyfin (incl. metadata hygiene, secure remote access)

Docs & Workflow

Git/GitHub · Markdown runbooks · VS Code · Obsidian

Oswaldo Reategui Resume 2025

You will find here my experience, education, and skills.

Experience

Sep 2023 - Present

Digital Systems and Operations Coordinator (Part-time)

Termales Don Grimaldo, Peru

I maintain and optimize the business’s digital stack-WordPress site and automated reservations-while implementing analytics-based reconciliation for financial transparency and integrating support tools that streamline operations and reduce response times.

Jul 2024 - Present

Founder and Sustainability Advocate (Part-time)

Tucuna Angler, Peru

Lead the Tucuna Angler initiative in Sauce, Peru-building its digital presence, organizing sustainable fishing tournaments, advancing responsible angling and aquatic-ecosystem conservation, and managing the e-commerce channel for gear to deliver a seamless customer experience.

May 2022 - Aug 2023

Water Quality and Digital Systems Specialist

Termales Don Grimaldo, Peru

Coordinated a water-quality assessment of 150+ samples; spearheaded a WordPress/JavaScript/PHP site launch; integrated online reservations; and deployed an AI-powered chatbot.

Aug 2021 - Mar 2022

Surface and Groundwater Resources Lecturer

Universidad Nacional de San Martín, Perú

Designed and delivered a curriculum on sustainable groundwater management incorporating machine-learning methods for aquifer-behavior prediction, and directed hands-on hydroinformatics workshops.

Sep 2020 - Dec 2020

Developer of Catalogue on Groundwater Management and Governance

International Groundwater Resources Assessment Centre (IGRAC), Netherlands

Developed an interactive web catalogue of global hydrogeological resources using data-visualization and web-GIS, and compiled 150+ scientific references to support policy and academic work.

Aug 2017 - Sep 2018

Technical Environmental Secretary and Project Coordinator

Ecology and Tourism Association of Sauce (ADETURSA), Peru

Coordinated 18+ stakeholders to launch three ecological projects; implemented a sewage-management system reducing environmental impact by 40%; built ADETURSA’s website with online donations, increasing fundraising by 50%.

Jan 2016 - Mar 2016

Environmental Intern

Regional Board of Transportation and Communication of San Martin, Peru

Coordinated remediation at three petroleum-contaminated sites using geospatial analysis; led bioremediation achieving a 90% reduction in soil contamination; prepared and presented detailed reports to senior engineers.

Education

Jun 2023 - Oct 2025

MSc. Computer Science

University of London, UK

Graduate study in algorithms, systems, security, and machine learning; thesis: ML-driven cloud-native intrusion detection (in progress).

Nov 2023 - Oct 2024

Intensive German Language Course

Volkshochschule Pankow, Germany

Intensive German for everyday use-grammar and conversation.

Sep 2019 - Sep 2020

MSc. Hydrogeology and Water Management

Newcastle University, UK