# Arnold Blandon Palacios

**Senior Backend Engineer** — Bogota, Colombia

> Senior backend engineer with 9+ years building distributed systems and financial platforms in Python, now combining payments expertise with production AI engineering.

Career Archetype: **Beacon Artisan** (RE-MX) — One of the first Beacon Artisans on Saywise

## Experience

### Squad Lead / Senior Python Developer, Tangelo Latam (2020-11 – present)
Bogota, Colombia · Lead backend engineering for payment and credit-line systems, owning payment processing, disbursements, reconciliation and credit lifecycle flows. Design resilient, high-volume financial services around idempotency, consistency, observability and failure recovery while leading architecture decisions.

### Software Developer, Mesfix (2017-09 – 2020-11)
Bogota, Colombia · Automated payment operations and manual financial workflows using Python, Selenium and web scraping, while developing backend services and internal tools for financial operations.

## Education

### Machine Learning Specialization, UNIR (2024-01 – present)

### Systems Engineer, Universidad Cooperativa de Colombia (2010-09 – 2015-06)

## Projects

### Agentic Conversational Platform
AI-driven conversational platform backend · Built backend capabilities using agents, reusable skills and tools for complex multi-step workflows. Combined deterministic business logic with probabilistic LLM reasoning, structured outputs and conversational context for reliable production interactions.

### Multiple Sclerosis Day by Day
iPhone companion for MS patients · Treatment calendar, heat alerts from local weather, and moderated community. Features QR reader that extracts restaurant menus from HTML, PDFs and images without AI and falls back to reading the page on the phone itself.

### Survive Trading
Survival roguelike teaching trading discipline · One-month, $1,000 run that punishes leverage, built as an offline PWA replaying real market episodes (COVID, GameStop, LUNA) with deterministic 1v1 bot duels.

## Skills

Python, FastAPI, Payment Systems, Credit Systems, Distributed Systems, AI Agents, LLM Orchestration, MCP / Tool Use, AWS, Azure, SQL, MongoDB, AI Engineering, Agentic Workflows, Structured Outputs, Context Management, Deterministic Guardrails, Selenium, Web Scraping, Backend Development, Financial Services, System Design

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Source: https://saywise.com/member9096 (last modified 2026-10-07T01:04:36.035Z)