david vargas
david vargas

Software Engineer

Open to offers · Member since 9 Nov 2026
Location
Bogotá, Colombia
Desired salary
Confidential
Work preference
Remote Only / Full Time
Experience level
Lead

About

Professional summary

I am a Software Engineer with five years of experience building fintech payments, lending, and web platforms. I lead engineering teams and deliver reliable systems for cross-border payments, custodial wallets, virtual accounts, deposits, withdrawals, checkout, and risk evaluation.

I work hands-on across TypeScript, Node.js, NestJS, React, PostgreSQL, GraphQL, REST APIs, and cloud-native infrastructure. I enjoy designing scalable backend services, provider integrations, retry-safe money flows, and event-driven architectures.

I have led engineering standards around pull-request reviews, INVEST-based planning, automated testing, code quality, and incident-ready operations. I have helped teams strengthen security through idempotency controls, SSRF protection, API-key lifecycle management, and encrypted secret storage.

I have practical cloud and DevOps experience with Azure, AWS, Terraform, Docker, GitHub Actions, OIDC, CI/CD pipelines, ephemeral environments, and observability tools such as Datadog and PagerDuty. I have led infrastructure migrations while maintaining production reliability and preventing data loss.

I also bring founder experience from taking a mobile product from MVP to production with a distributed team. I am motivated by solving complex product and platform challenges, mentoring engineers, and building dependable software that supports business growth.

Notice period: Immediately

Skills

38 capabilities

Tech stack & tools

Working toolkit

Experience

Career history

Tech Lead Loopay

I lead a team of five engineers building a multi-tenant cross-border treasury and payments platform for fintech companies. The platform supports custodial wallets, virtual accounts, deposits, withdrawals, and integrations with custody, payout, virtual-account, and KYC providers using NestJS, PostgreSQL, GraphQL, REST, and React.

I established engineering standards including mandatory pull-request reviews, an INVEST-based backlog, Playwright end-to-end testing, and code audits. I closed 12 security-audit findings involving idempotent money operations, SSRF protection, API-key lifecycle management, and encryption of stored secrets. I also co-led an AWS-to-Azure migration using Terraform and built GitHub Actions CI/CD with OIDC, ephemeral pull-request environments, version-tag releases, and over 6,000 automated tests.

Co-founder and Software Engineer Trebet

I co-founded and developed a digital-intercom mobile application, taking it from MVP to production in approximately one month. I worked with a remote team of seven people across Colombia, Mexico, and Venezuela and supported a pilot with a test community.

I built the product using React Native, Laravel, WebRTC with a TURN server, and WebSockets. I operated the infrastructure and later migrated the application from AWS to DigitalOcean when funding ended, moving the database before DNS cutover with no data loss.

Software Engineer Galgo

I worked on the Checkout and Risk teams, developing backend services and user-facing interfaces for critical financial workflows. My work included NestJS services, a backend-for-frontend layer, and Next.js applications deployed on AWS.

I maintained systems on the checkout and risk-evaluation critical path. I used Datadog for monitoring and participated in incident handling through PagerDuty to support operational reliability.

JavaScript Developer Loopay

I developed frontend and backend features for a RedwoodJS application. I worked with GraphQL, Prisma, Node.js, and React to deliver product functionality across the stack.

I optimized database queries and improved interface responsiveness. This role strengthened my experience building full-stack JavaScript applications and working with data-driven web products.

JavaScript Developer Tribuu

I built a single-page application for a freelancer marketplace using Angular, Express, and MongoDB. I contributed across frontend and backend development to support marketplace workflows.

I redesigned the backend toward a microservices architecture and integrated Algolia search and video-conferencing APIs. The work involved improving platform capabilities and integrating external services into the product.

Web Developer Independent

I began my professional development career as a self-taught web developer in Bogotá. I built and launched e-commerce stores for clients using WooCommerce and PrestaShop.

I also created static websites using HTML, CSS, and JavaScript. This experience established my foundation in web development, client delivery, and digital commerce.

Education

Learning history

Universidad Manuela Beltrán

Software Engineering, Software Engineering

Software Engineering program in progress in Bogotá.

Universidad Autónoma de Bucaramanga (UNAB)

Professional Technician in Programming, Programming

Professional technical education in programming.

This professional hasn’t added portfolio projects yet.

This professional hasn’t listed any services yet.

Jobs Talent AI Tools Salaries
Menu