Software Engineer · Quito, Ecuador

Building reliable backend systems for real-world products.

I’m Jonathan Franco, a software engineer focused on fintech, payments, and cloud-native systems. I currently work on the Deuna digital wallet platform.

Explore experience Download résumé (EN)

jonas150397@gmail.com LinkedIn ↗GitHub ↗

Current focus

Fintech · Backend · Cloud

Profile

Engineering focused on impact

Experienced in building and maintaining backend services, payment integrations, cloud-native applications, and distributed systems across fintech and technology consulting. I combine product development, production support, and automation to deliver reliable, scalable software.

Fintech & paymentsEvent-driven systemsCloud-nativeAI modernization

Career

Professional experience

01/Nov 2025 – Present

Software Engineer

Deuna · Associated with Devsu

Develop and maintain backend services for payment operations on an Ecuadorian digital wallet platform, supporting critical transaction workflows and production reliability. Currently assigned to the Visa Accept team after working on Payments.

TypeScriptNode.jsNestJSKafkaRedisPostgreSQLAWS

02/Jan 2025 – Nov 2025

AI Innovation Hub

Devsu · AI R&D

Contributed to VelX (formerly AppScanner), a discovery and assessment tool based on the 7Rs modernization framework. It analyzes technical and functional application structures to help teams understand systems before planning modernization.

TypeScriptDenoLangChainGCPSupabaseNeo4j

03/Sep 2023 – Jan 2025

Marketing Data & Automation Engineer

Devsu

Led technical initiatives supporting marketing and sales: optimized reporting with SQL, built a FastAPI integration for HubSpot and SendGrid, maintained the corporate website and technical SEO, and designed campaign workflows and data normalization using Airflow and Airbyte.

PythonFastAPIBigQueryMySQLAirflowAirbyteGCPNext.jsPrismic

04/May 2023 – Aug 2023

Profiles Devsu

Devsu

Improved monitoring with GCP, implemented SRE service-level objectives and alerts, added contract tests, improved pipelines, and deployed new features.

GCPSRESLOsContract testingCI/CDTypeScript

05/Jan 2023 – Aug 2023

Process Automation

Devsu

Automated internal processes by setting up development and production environments for Firebase Functions and a Next.js application, creating Bitbucket Pipelines, integrating Prismic CMS, and implementing frontend features.

Next.jsTypeScriptFirebase FunctionsNetlifyPrismicBitbucket Pipelines

06/Feb 2022 – Sep 2022

Kushki

Devsu · Kushki

Developed microfrontend applications and backend services for fintech products and payment integrations, contributing to products in Kushki’s Final tribe.

ReactNext.jsNode.jsGoAWSMaterial UI

07/Jan 2022 – Feb 2022

EatCute

Devsu

Built a web application for Buffalo Chicken Lovers, using mutual matches to send sandwich promotions.

ReactTailwind CSS

08/Apr 2021 – Jan 2022

Devsu Digital

Devsu

Developed and maintained the corporate digital experience, contributing to web performance and frontend improvements.

Next.jsReactTailwind CSSPrismic

09/Apr 2019 – Oct 2020

Salud ESPE

Universidad de las Fuerzas Armadas ESPE

Contributed to a clinical records web application for the university, built with AngularJS and Spring Boot.

AngularJSSpring BootPostgreSQL

Toolbox

Technologies & expertise

Hands-on experience across different layers of systems and products.

Languages

TypeScriptJavaScriptPythonGoJavaSQL

Backend & APIs

Node.jsNestJSFastAPISpring BootREST APIsMicroservices

Architecture & Messaging

Event-driven architectureKafkaDistributed systemsRedis

Cloud & DevOps

AWSGCPDockerCI/CDServerlessCloud Run

Databases & Data

PostgreSQLMySQLBigQuerySupabaseNeo4j

AI & Modernization

LangChainAI-assisted solutionsLegacy assessment7Rs framework

Selected work

Projects

Product work, professional projects, and freelance collaborations, including payments and data initiatives.

Deuna

Visa Accept

Current project assignment within Deuna’s Visa Accept team.

Deuna

Payments

Worked on payment services and critical transaction workflows for Ecuador’s Deuna digital wallet.

TypeScriptNestJSAWSKafkaRedis

AI Innovation Hub · Devsu

VelX

AI-powered discovery and assessment for application modernization using the 7Rs framework.

TypeScriptDenoGCPSupabaseNeo4j

Marketing Data & Automation · Devsu

Marketing Data Normalization

Built data normalization workflows with Airbyte and Apache Airflow to integrate, orchestrate, and prepare marketing data for reporting.

Apache AirflowAirbyteSQLBigQuery

Marketing Data & Automation · Devsu

Marketing Callbacks API

Built a FastAPI service on GCP to integrate marketing platforms including HubSpot and SendGrid, with CI/CD pipelines managed through Bitbucket.

PythonFastAPIGCPHubSpotSendGrid

Profiles Devsu

Improved GCP monitoring, SRE objectives and alerts, contract tests, CI/CD pipelines, and feature deployments.

GCPSRESLOsContract testingCI/CD

Process Automation · Devsu

Process Automation

Created development and production environments for Firebase Functions and a Next.js application, built Bitbucket Pipelines, connected Prismic CMS, and implemented frontend features.

Next.jsFirebase FunctionsNetlifyBitbucket PipelinesPrismic