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Juan Ignacio Portilla Kitroser
CVES

The system grows.Requirements change every week.I make it work.

I'm Juani, a backend engineer from Argentina. Open to remote backend, full-stack or product engineering roles.

Since November 2024 I've led the team behind SISOC, used by ~750 government staff.

5 years - Python / Javascript - Remote from Argentina

Selected work

Two places I build in

in production+3 field apps~750 active users1,750+ merged PRs

SISOC

Back office for a national social-policy secretariat, plus three field apps built on its API. I set up the engineering system the team works in, and I review and approve every PR and every deploy.

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in production1 businessdevelopment paused

ShineApp

Multi-tenant SaaS for automotive service businesses, built alone end to end. The King Shine runs its daily operation on it instead of paper and Excel, and its customers book through its public booking page.

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Experience

Since 2021, building systems that have to keep running

Public sector, logistics and startups, in Argentina and Europe. APIs, data integrations, infrastructure and the delivery practices around them. The common thread: systems that have to perform in production.

  1. 2024 - now

    Ministerio de Capital Humano (Argentina)

    Technical Lead, before that Full-Stack Developer

    • Lead a team of 4 developers: I set the architecture and engineering standards, and review every PR and every deploy.
    • Lead the gradual migration from a monolith to microservices, drawing the domain boundaries.
    • Design REST APIs, fine-grained permissions and integrations with external systems for social and identity data.
    • Python
    • Django
    • DRF
    • MySQL
    • React
    • TypeScript
    • Docker
    • GitHub Actions
    Read the SISOC case →
  2. 2024

    StockViz (Belgium, remote)

    Full-Stack Developer

    • Backend logic, endpoints and data models with Django.
    • ETL workflows with Apache NiFi to integrate and transform data for analysis and reporting.
    • Responsive interfaces with JavaScript, HTML and CSS.
    • Python
    • Django
    • Apache NiFi
    • JavaScript
  3. 2023 - 2024

    RapiHogar

    DevOps Developer, then consultant

    • Containerized the web apps with Docker and helped migrate them to Kubernetes on GKE.
    • Ran the development, staging and production environments on GCP, and set up Sentry to investigate incidents.
    • As a freelance consultant, supported what I had built.
    • Docker
    • Kubernetes
    • GKE
    • GCP
    • Sentry
  4. 2023

    Municipalidad de San Miguel

    Backend Developer (freelance)

    • Designed and built an API connecting two external social-services systems.
    • It searches, processes and matches people's records across both systems.
    • Python
    • FastAPI
  5. 2022 - 2023

    MailAmericas

    Developer Analyst, then DevOps

    • Supplier-portal backend with Node.js and Express.
    • Automated repetitive admin tasks with TypeScript and Selenium.
    • Moved six databases to a serverless setup on Azure and automated CI/CD and tests with GitLab.
    • Node.js
    • Express
    • TypeScript
    • Selenium
    • Azure
    • GitLab CI
  6. 2021

    Arrayan

    Frontend Developer (freelance)

    • Frontend for a human-resources app with React, wired to its API.
    • React
    • JavaScript
  7. 2021 - 2022

    Gobierno de la Ciudad de Buenos Aires

    Process Analyst, then Backend Developer

    • Mapped and documented operational processes to improve them.
    • Planned and built the Community Action Organizations System (SOAC) with Django.
    • Maintained internal systems.
    • Python
    • Django
Juan Ignacio Portilla Kitroser
Contact

Let's talk

Software engineer focused on backend: Python, Django and DRF, with React and Next.js on the frontend. I build and maintain production systems with complex business rules and many integrations, and I use AI tools every day without lowering the bar.

  • Available now - contractor or full-time
  • Fluent English
  • Full overlap with US East Coast hours (GMT-3)
jpkitro@gmail.comDownload CVGitHub ↗LinkedIn ↗