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Josue Montecinos

@josuemontecinos

Full-stack engineer at Ofbox who co-led GS1 El Salvador’s management platform, from its Quarkus and Camel backend to its React frontend.

El Salvador

Message

At Ofbox S.A. de C.V., I work on production systems for clients in banking, energy, retail, agro-industry, standards, and the public sector. For GS1 El Salvador’s management platform, I co-led development of the Quarkus and Apache Camel backend and React frontend.

I built REST APIs and a Python ETL to migrate the legacy Oracle database to SQL Server. I also built an AI-agent-driven end-to-end QA framework and owned the deployment configuration.

At DELSUR, I led the migration of the grid incident-detection messaging platform from Java 6 and JBoss 5 to Java 17 and JBoss EAP 7.4. I modernized its ActiveMQ queues and batch processing services, and maintain Axis2/SOAP and JMS integrations with EFACEC OMS.

Outside client work, I architected and built Biyu, a Flutter point-of-sale app, and Socrates, an open-source AI tutor. I also designed and shipped Strata, a full-stack agentic pipeline canvas, and built a Python security detection and remediation pipeline.

Experience

Work history, roles, and key accomplishments

Current

Co-lead Developer

Current

GS1 El Salvador

Dec 2024 - Present (1 year 10 months)

Co-lead developer and initiator of backend and frontend repositories for the management platform. Designed and built a Java 17/Quarkus 3.27 + Apache Camel backend and React 19 frontend, with AI-driven E2E QA and Oracle to SQL Server migration.

Java 17 Quarkus Apache Camel Panache (Hibernate)SQL Server JUnit5 Mockito React 19 TypeScript Vite Ant Design Zod Vitest Playwright Docker Compose Python ETL

Current

Software Developer (Full-Stack)

Current

Ofbox S.A. de C.V.

May 2021 - Present (5 years 5 months)

Consulting for banking, energy, retail, agro-industry, standards and public-sector clients. Co-lead developer of GS1 El Salvador's management platform and led legacy modernizations.

Java 17 Quarkus Apache Camel React TypeScript Panache (Hibernate)SQL Server JUnit5 Mockito Vitest Playwright Docker OpenShift Tekton Python ETL

Lead Frontend Developer

SAI Ingenio

Oct 2024 - Oct 2026 (2 years)

Lead frontend developer of the budget and work-ticket control application, initiating the repository. Contributed to the Java 17/Quarkus 3 + Camel backend and refactored deployment scripts and Azure Pipelines CI/CD.

React 18+TypeScript Vite Ant Design Java 17 Quarkus Apache Camel SQL Server Azure Pipelines

Lead Migration Engineer

DELSUR

Dec 2021 - Sep 2026 (4 years 9 months)

Led migration of grid incident-detection messaging platform from Java 6/JBoss 5 to Java 17/JBoss EAP 7.4, modernizing ActiveMQ queues and batch services. Maintains Axis2/SOAP + JMS integration services with EFACEC OMS and supports production debugging.

Java 17 Red Hat JBoss EAP ActiveMQ JMS Apache Axis2 SOAP Oracle Batch Processing

Core Engineer

BFA

May 2021 - Jul 2026 (5 years 2 months)

Core engineer on BFA's internal banking platform serving 500,000+ users, building account-administration and client product-approval modules. Contributed to online banking frontend and security hardening across 30 Apache Camel microservices.

React TypeScript Vite Ant Design Apache Camel Red Hat Fuse Security

Team Lead

Consejo Nacional de Salud

Jun 2025 - Oct 2025 (4 months)

Led the team that built a legal-document and case-workflow system for El Salvador's National Health Council, formally recognized by the full Council. Also led migration of a .NET sensor-paired stress-research application to Electron.

Team Leadership Legal Document Management Workflow Management .NET Electron

Migration Lead

GBM El Salvador

Feb 2024 - Aug 2025 (1 year 6 months)

Led migration of an enterprise application from JavaServer Faces to a modern React single-page application.

React Java Server Faces Migration

Software Developer

El Palacio de Hierro

Apr 2023 - Jul 2024 (1 year 3 months)

Built Camel Quarkus initial-load microservices over Oracle and an authorizer service. Owned and tuned the Tekton CI/CD pipeline on Red Hat OpenShift cluster.

Camel Quarkus Oracle Tekton OpenShift CI CD