Systems I've Shipped

Real-world launches across payments, legal tech, public sector, and e-commerce—full-stack builds with measurable impact, clean architecture, and thoughtful UX.
2023
Cefriel Digital Ecosystem - E015 & Ferrari
Contributions to Cefriel's white-label digital ecosystem platform (Ecosystem in a Box), extending it for E015 and Ferrari with security, auditing and data ingestion capabilities.
Digital EcosystemsAPI EconomyData SharingB2B PlatformsPlatform Engineering
2023
Cefriel - SIRAC Authentication Platform for Comune di Genova
Authentication orchestration platform for Comune di Genova, integrating Italian digital identity systems (SPID, CIE, eIDAS) via SAML and OIDC, with a React/NestJS admin console and automated config deployment.
Digital IdentityAuthenticationSSOSPIDCIE
2023
dLocal Project Financial Management Platform
Internal financial management platform that transformed dLocal's project cost tracking from scattered Excel reports into a centralized, role-based dashboard.
FintechFinancial ManagementProject AccountingProduct StrategyWorkflow Automation
2024
Contracts - Conversational Assistant for Contract Management
RAG-based conversational assistant that lets a professional sports organization query and analyze player, staff and sponsor contracts in natural language.
RAGLLMsLegal TechContract AnalysisKnowledge Management
2024
Coomecipar - Conversational Assistant for Document and Knowledge Management
Private, enterprise-grade conversational assistant for Coomecipar that runs on internal SSO, Anthropic models and a curated knowledge base, avoiding data exposure to public LLMs.
FintechPrivate LLMsConversational InterfacesKnowledge ManagementSecurity and Compliance
2021
Lokafy - Platform Rebuild and Developer Enablement
Led the rebuild of Lokafy's core platform from a multi-framework Django monolith into a Nuxt.js + Django/Postgres stack, while mentoring junior developers and managing cloud infrastructure on App Engine.
Platform RebuildFull-Stack ArchitectureNuxt.jsDjangoPostgres
2022
Tripple - Open Innovation Challenge Platform
Co-founded Tripple, an open innovation platform where organizations publish internal and public challenges and communities co-create solutions, with a highly themable design system.
Open InnovationProduct Co-FounderSaaS PlatformsMulti-Tenant ArchitectureDesign Systems
2024
AVM Generator Platform for Hepic
AI-powered AVM generator built with Pro and Delfos to turn Hepic's audience-value model from a slow Excel workflow into an automated, LLM-driven platform.
AILLMsOpenAIContent StrategyAudience Segmentation
2023
Digital Henka / Zzzleepandgo - Automated Cabin Management System
Event-driven firmware and management platform to remotely control airport sleep cabins at scale, replacing a fragile MVP and manual configuration workflows.
IoT SystemsDevice ManagementEvent-Driven ArchitectureOperational AutomationInternal Tools
2023
dLocal Payins - Local Payment Method Integrations
Payins integra'ions work at dLocal, connecting global merchants to multiple local payment methods across emerging markets through unified APIs.
FintechPaymentsPayinsAlternative Payment MethodsPayment Integrations
2023
Digital Henka - Hughes & Hughes - SharePoint / Office 365 Document Management Flows
SharePoint and Office 365-based document management flows for Hughes & Hughes, replacing legacy Worldox plugins with an Office Web Add-in that enforces metadata, confidentiality and a single source of truth.
Legal TechDocument ManagementSharePointOffice 365Office Web Add-ins
2019
Gases del Caribe – BRILLA Points Management Platform (React + Rails)
Internal full-stack platform for store operators to verify, approve and manage BRILLA credit operations and points, plus a data migration for an allied company adopting the program.
Utility FinanceCredit ProgramsLoyalty & PointsStore OperationsReact
2024
dLocal / Soljud - Judicial Request Processing System (RAG)
Python and LLM-powered backend that automates the processing of Soljud judicial requests for dLocal, classifying actions and generating Jira issues under a 24-hour legal SLA.
FintechLegal AutomationRAGLLMsPython
2024
Loi / Astroselling - Order Audit and Reconciliation ETL
ETL and audit platform orchestrated with Apache Airflow to reconcile orders between Mercado Livre, SAP B1 and internal sources for Loi, with BI-style reporting in Streamlit.
Data EngineeringETLApache AirflowE-commerceMarketplace Integrations
2023
MxBrackets - Sistema interno de embudo WhatsApp y BI
WhatsApp-based sales funnel and BI system that connects paid campaigns, leads and appointments for MxBrackets, reducing friction and improving media decisions.
Marketing AutomationWhatsApp BotsLead FunnelsData IntegrationBI Dashboards
2018
Fundación Liborio Mejía – Litivo Platform for Insolvency & Conciliation
Web platform that digitizes Colombia’s insolvency and conciliation process end to end, generating all required documents and records as defined by law.
Legal TechInsolvency & ConciliationCase ManagementDocument AutomationUI/UX Design
2023
Conversion Landing Systems for D24 & Tupay
Dual-brand landing initiative that aligned fintech storytelling, UX, and front-end architecture so D24 and Tupay could launch their rebrands on time.
FintechPaymentsB2B SaaSProduct StorytellingRebranding
2023
CIER - Website and PWA
New WordPress-based website and mobile PWA for CIER, replacing a SharePoint site, preserving SEO and enabling non-technical content management with an AD-secured mobile experience.
RebrandingCMS ArchitectureWordPressPWASEO
Crafted by Juan Felipe Arellano • © 2025