David Julián Jaramillo | Full-Stack & AI Engineer

STEP 01 · REAL-WORLD DATA & WEB

Robust Web Platforms,
Mission-Critical Data

High-performance web architecture designed for real-time operations. From financial management dashboards to high-volume logistics and clinical systems, engineered for near-zero latency and continuous uptime.

High Availability100+ Production Routes

Latency Target< 150ms P95

Scroll down to mutate the visual stream

STEP 02 · AUTONOMOUS CODING AGENTS & MEMORY

Agentic Workflows,
CLI & Memory Engines

Moving far beyond simple chat interfaces. I architect autonomous agent workflows using Gemini CLI & MCP servers, anchored to a structured Obsidian Knowledge Base for persistent memory, deterministic guardrails, and surgical code execution.

Agent RuntimeGemini CLI & MCP Protocols

Persistent MemoryObsidian Knowledge Graph

STEP 03 · PRODUCTION APIS & RELIABILITY

Battle-Tested APIs,
Enterprise Automation

Code that runs reliably outside my local machine. I build robust backend APIs (FastAPI, NestJS) and mission-critical automation pipelines across healthcare dispatching, automotive ERP billing, and bulk logistics—fully containerized with Docker and engineered for continuous 24/7 uptime.

Download CV (PDF)Explore Projects ↓

FLAGSHIP ARCHITECTURE · PRODUCTION WEB

Featured Product:
Constelación FinTech

Ultra-low latency multi-region financial platform with over 100+ Edge-rendered routes, real-time yield engines, and automated daily SEO indexing.

Constelación FinTech

Personal Flagship · Colombia and Ecuador

Enter Live Platform

System Pipeline Architecture

1. Market Ingestion

Automated scrapers pull real-time rates from SuperFinanciera, BanRep, and BVQ.

2. Edge Compiler

Next.js Edge matrix compiling 105 localized routes across Colombia and Ecuador.

3. Client Simulator

Reactive financial simulator executing client-side with near-zero latency.

CLIENT-SIDE MATH ENGINE · ZERO SERVER OVERHEAD

Deterministic Yield & Tax Engine

Financial calculations run 100% in client memory, eliminating recurring cloud computation costs and guaranteeing sub-millisecond (<1ms) simulation feedback.

Colombia: Statutory 4% withholding tax deduction (Estatuto Tributario Art. 395).

Ecuador: 0% withholding exemption on fixed-term deposits over 180 days (Banco Central).

View Pure TypeScript Algorithm

src/lib/fintech_yield_engine.ts

export function calculateEffectiveYield(capital: number, rateEA: number, termDays: number, region: 'CO' | 'EC') {
  const periodRate = Math.pow(1 + rateEA, termDays / 365) - 1;
  const grossYield = capital * periodRate;
  const withholdingTax = (region === 'EC' && termDays >= 180) ? 0.00 : 0.04;
  return {
    netEarnings: grossYield * (1 - withholdingTax),
    taxRetention: grossYield * withholdingTax,
    effectiveMonthly: (grossYield / (termDays / 30))
  };
}

LIVE SIMULATOR (IN-BROWSER)

< 1ms Latency

Region

Term (Days)

Deposit Capital

Rate E.A. (%)

Gross Yield:$554,821

Withholding Tax:-$22,192 (4%)

Net Earnings:$532,629

Ultra-low latency multi-region analytics platform with 105 Edge-rendered routes.

A multi-region financial platform helping everyday users compare fixed-term deposits (CDTs/DPFs), calculate inflation loss, and simulate stock dividends across Colombia and Ecuador with instant client-side performance.

Key Engineering Highlights:

•Dynamic currency parity engine syncing USD and COP TRM metrics in real time.
•Isolated editorial routing preventing keyword cannibalization between regions.
•Integrated structured schema and dynamic FAQ entities for high search visibility.

Next.js 15TypeScriptTailwind CSSDocker

CLIENT SYSTEMS · MISSION-CRITICAL APIS

Enterprise Systems &
Industrial Automation

Production software built for business clients across healthcare dispatching, automotive ERP billing, and bulk logistics.

Healthcare InfrastructureNestJS · PostgreSQL · Next.js

Rocita Clinical System

Domain: Clinical Operations & IPS

Agenda Triage→

PostgreSQL Guard→

WhatsApp Dispatch

Engineered a decoupled clinical dispatch engine synchronizing relational database states with automated messaging channels, eliminating manual scheduling bottlenecks and clinician double-booking.

Key Outcomes:

•ACID-compliant clinical transactions on containerized database clusters.
•Synchronized agenda validation preventing clinician double-booking.
•Automated appointment confirmation via secure SMS & WhatsApp dispatch.

Decoupled LayerPostgreSQL ACIDEvent LoopBaileys Bridge

NestJS, PostgreSQL, Next.jsProduction Cleared

Microservices & Distributed APIsFastAPI · Next.js · Docker

Enterprise ERP Integration Hub

Domain: ERP Sync & Transactional Pipelines

Next.js Portal→

FastAPI Workers→

PostgreSQL Hub

Architected high-throughput REST microservices in FastAPI with asynchronous background worker queues and Next.js management dashboards, enabling automated data exchange with core ERP databases.

Key Outcomes:

•Automated third-party record sync directly into ERP databases.
•Zero-downtime containerized deployments orchestrated with Docker CI/CD.
•Asynchronous attachment processing with sub-second API latency.

Async EndpointsNext.js ShellDocker ContainersCI/CD Pipelines

FastAPI, Python 3.11, Next.jsProduction Cleared

Transactional RoboticsPython · Rocketbot · Fiori

SAP S/4HANA & Colmédica RPA

Domain: Enterprise Banking & Healthcare

Virtual DOM Scanner→

Encrypted Vault→

SOAP CDATA

Developed fault-tolerant RPA workflows with active cursor navigation over virtualized SAP Fiori tables and clean CDATA XML packaging, completely clearing official corporate security audits.

Key Outcomes:

•100% security approval in official corporate code audits.
•Zero encoding failures across thousands of transactional claims.
•Reliable execution on 30+ item orders in virtualized SAP tables.

DOM Cursor TraversalCDATA PackagingVault InjectionUNC Escaping

Rocketbot RPA, Python, SOAP XMLProduction Cleared

ENGINEERING PROTOCOL · SECOND BRAIN

How I Build with
Autonomous Coding Agents

How I orchestrate stateful AI systems using Obsidian as a persistent memory vault, code graph navigation, and deterministic sandbox validation.

ENGINEERING PROTOCOLStateful AI + Senior Review

Obsidian Second Brain · AST Validated

STAGE 01Memory Hub

Obsidian Knowledge Vault

Persistent contextual memory, technical specs, and architectural guardrails stored in an atomic Obsidian vault. Prevents agent amnesia across sessions.

Obsidian MemorySprint Specs

STAGE 02AST & Context

Code Graph & MCP Tools

Automated AST exploration, call graphs, and blast-radius analysis via Model Context Protocol (MCP). Derives insights before modifying files.

CodegraphContext-Mode

STAGE 03Disciplined Code

Surgical Execution

Autonomous agents write targeted patches. Reuse first, favor standard libraries, clean orphan imports, and maintain strict contract boundaries.

Autonomous AgentsTargeted Diffs

STAGE 04Verification

Sandbox Tests & Deploy

Isolated unit tests, static type verification, and automated containerized delivery with zero-downtime health checks.

Docker CI/CDZero-Downtime

>_Obsidian Brain + Code Graph + Surgical Agentic Diffs

Quality Target: 100% Deterministic & Auditable

VERIFIED EXPERTISE · TRACK RECORD

Verified Competence &
Technical Badges

Official Google Cloud credentials, agent orchestration certifications, and verified production benchmarks.

Google Cloud

Develop GenAI Apps with Gemini and Streamlit

Function calling, interactive LLM application design, Docker and Cloud Run deployments.

BadgeCredly Profile →

Google Cloud

Build Agents with Agent Development Kit (ADK)

Autonomous tool orchestration, deterministic agent runtime logic, and external API invocation.

VerifiedComplete

Google Cloud

Introduction to AI Agents

Multi-agent cognitive architectures, memory state persistence, and guardrail constraints.

VerifiedComplete

Google Cloud

MLOps for Generative AI

Production model evaluation, prompt governance, token rate limiting, and observability.

VerifiedComplete

Robust Web Platforms, Mission-Critical Data

Agentic Workflows, CLI & Memory Engines

Battle-Tested APIs, Enterprise Automation

Featured Product: Constelación FinTech

Constelación FinTech

Deterministic Yield & Tax Engine

Enterprise Systems & Industrial Automation

Rocita Clinical System

Enterprise ERP Integration Hub

SAP S/4HANA & Colmédica RPA

How I Build with Autonomous Coding Agents

Obsidian Knowledge Vault

Code Graph & MCP Tools

Surgical Execution

Sandbox Tests & Deploy

Verified Competence & Technical Badges

Develop GenAI Apps with Gemini and Streamlit

Build Agents with Agent Development Kit (ADK)

Introduction to AI Agents

MLOps for Generative AI

Robust Web Platforms,
Mission-Critical Data

Agentic Workflows,
CLI & Memory Engines

Battle-Tested APIs,
Enterprise Automation

Featured Product:
Constelación FinTech

Enterprise Systems &
Industrial Automation

How I Build with
Autonomous Coding Agents

Verified Competence &
Technical Badges