01
Engineering & Systems
I build complete systems, start to finish. I don't marry one technology: I pick whatever fits the problem in front of me. And after working in cybersecurity, I check where the data goes before anything else.
CRISTIAN
PÉREZ
Software that runs your business, and video that sells it.
I design, build and explain the systems small teams depend on. Without the jargon.
Available for contracts & consultingRemote / Bucaramanga, Colombia
[ 01 ] About
About me
02
Communication & Video
I also write, present and edit video, which built an audience of 32K+ followers. The skill that keeps a stream watchable is the same one that makes a sales pitch land.
01
Tool-Agnostic
The right stack per problem, not per habit
02
Security Mindset
Data flow auditing, input integrity
03
Content & Streaming
TikTok / Instagram / Twitch
04
GEO, SEO & AEO
Built to rank on Google and get cited by AI
[ 02 ]
Services
01 / 05
Full-Stack Web & Software Applications
- LARAVEL
- REACT
- NEXT.JS
- POSTGRESQL
- DOCKER
- PYTHON
Web platforms, custom applications and the software your operation runs on, built from scratch: the database, the logic and the screens your team uses every day. Clean code and infrastructure ready to scale with the business.
02 / 05
Workflow Automation & Integration
- N8N
- PYTHON
- WEBHOOKS
- APIS
Your tools finally talk to each other, and repetitive tasks disappear. Automated pipelines that save dozens of hours and remove the errors of copying data by hand.
03 / 05
Document AI & Data Extraction
- AZURE DOC INTELLIGENCE
- OCR
- LLMS
- PYTHON
PDFs, records and paper documents turned into structured data you can search in seconds. Secure OCR and AI do the reading, so nobody transcribes by hand.
04 / 05
Business & Technical Advisory
- SALES FUNNEL TECH
- PROCESS AUDIT
- SECURITY & DATA
An audit of your sales funnel, operations and technical security. A clear report on where revenue leaks, what slows you down and which data is at risk, with what to fix first.
05 / 05
Technical Video & Product Storytelling
- HIGH-RETENTION EDITING
- SCRIPTING
- STREAMING
Technical products turned into high-retention video people get in thirty seconds. Strategic scripts and dynamic editing built to earn trust and close sales.
[ 03 ]
Projects
01
Full-Stack + AI
PairSync — Real-Time AI Pair Programming Platform
Collaborative coding rooms with an AI tutor and grades synced to Moodle.
- Laravel 12
- Blade + JS
- Tailwind CSS
- LangGraph
- Moodle REST API
- SQLite
- Docker
- Problem
- Two people coding together lose time re-explaining where they left off, and grading happens somewhere else.
- Technical solution
- Rooms joined with a 6-character code, swappable Driver/Navigator roles, a streaming AI tutor in the chat, and one-click grade sync to Moodle.
- Impact
- Pairs pick up exactly where they stopped, and the teacher grades without leaving the app.
BrowserBlade + JS · Driver / Navigator
Polling · 2s
Laravel 12Rooms, roles, chat, grades
REST · SSE
LangGraphAI tutor · SSE stream
MoodleREST API · grade sync
SQLiteSession state & chat history
02
Cybersecurity Internship · FCV
Automated Document OCR & Security Pipeline
Ingestion, extraction and normalization pipeline for scanned institutional records.
- Python
- Azure Document Intelligence
- OCR
- PyMuPDF
- openpyxl
- Problem
- Hundreds of manual hours spent looking up physical records, with weak traceability.
- Technical solution
- Structured data extraction with Azure Document Intelligence, Python automation and data-integrity validation.
- Impact
- 746 records searchable by ID, name or site, with low-confidence reads flagged for human review instead of silently accepted.
Scanned recordsHandwritten, multi-page PDFs
one PDF per page
Azure Document IntelligenceOCR · handwriting + tables
structured fields
Python pipelineNormalize · validate · flag
reviewed rows
Searchable indexExcel + offline search tool
- python dividir_pdfs.py
- Multi-page scans split into one PDF per page
- python procesar_actas.py
- 746 records indexed by ID, name and site
- Low-confidence reads flagged for human review
- python actualizar_buscador_desde_excel.py
- Search tool in sync with the reviewed Excel
03
Digital Media & B2B Communication
Content Creation & Media Pipeline
Tostu / criscx1905
- TikTok
- Twitch
- OBS
- After Effects
- Problem
- Good products lose sales in the explanation. The buyer never sees why it matters.
- Technical solution
- I write, present and edit the whole thing myself. It built an audience of 32K+ followers.
- Impact
- The same works for clients: demos and pitch videos anyone can follow, technical or not.
- +2M Organic Impressions
- High-Retention Pacing
- Multistream Production
- End-to-End Delivery
02. Community Growth & Organic Reach (32K+ Followers, 2M+ Likes)
03. Live Broadcasting Architecture (OBS Multistream Setup)
01. High-Retention Vertical Editing (After Effects Pipeline)