Gustavo Pacheco

Tech Lead & Sr Software Engineer

Typing solid code with good practices, with knowledge in BackEnd & FrontEnd. I love DevOps culture.

About me

Graduate Senior Software Engineer from the University of Cartagena , COL, I bring over 12 years of experience working with cutting-edge technologies for diverse clients, both local and foreign.

I'm a solution-driven Full-Stack developer, deploying my knowledge in the different components of a top-notch and reliable software product. My portfolio includes projects with renowned industry leaders like Bancolombia , where I contributed to the development of pivotal app features that consolidate clients.

I pride myself on my effective team leadership, mentorship abilities, and drive to always dive deep into new technological paradigms.

Work Experience

Nullplatform

  • Software Engineer
    jan. 2026 - present

    At nullplatform, I have contributed to the development of data products focused on expanding customer access to the company's lakehouse capabilities through scalable and reliable backend services.

    I participated in the creation of a service that enables nullplatform clients to securely access lake data, supporting a more efficient and productized way to expose analytical information.

    I am also working on an AI agent service that accelerates dashboard and metrics creation by generating JSON schemas, UI schemas, and SQL queries, enabling users to surface relevant lake insights with less manual effort.

  • Node.js
  • JavaScript
  • Fastify
  • ClickHouse
  • PostgreSQL
  • Claude

Jüsto

  • Tech Lead & Senior Software Engineer
    sep. 2023 - dec. 2025

    As Inbound Team Lead within Jüsto's Operations tribe, I oversee critical operational processes including replenishment, warehousing, inventory management, purchase order receiving, inter-warehouse transfers, reverse logistics, cycle counting, and shrinkage control.

    I led the redesign and migration of a monolithic service to a microservices architecture, reducing production incidents by around 90% and increasing replenishment efficiency by 40%. Today, my team supports the vast majority of warehouse operational needs, continuously driving process optimization and scalable solutions.

  • Node.js
  • Nest.js
  • Express.js
  • TypeScript
  • JavaScript
  • Yarn
  • PostgreSQL
  • AWS
  • Docker
  • Kubernetes

TravelX Inc.

  • Senior Software Engineer
    apr. 2022 - sep. 2023

    At TravelX, I contributed to the design and development of the flight product infrastructure, defining core architectures used across different stages of the product development lifecycle.

    I collaborated on the process of importing airline tickets into the NFTickets technology, integrating aviation industry standards with blockchain-based solutions.

    I implemented connectors to external airline APIs such as Flybondi, Viva Air, among others, ensuring robust, scalable integrations capable of handling high transactional volumes.

    I designed and developed an architecture for detecting itinerary changes, passenger modifications, and other ticket lifecycle events, complemented by an analytics platform capable of identifying NFTicket offers, special fares, high-demand destinations, and key patterns that drive the operation and dynamics of the secondary flight market.

  • Kotlin
  • Ktor
  • Spring Boot
  • Gradle
  • MongoDB
  • Redis
  • AWS
  • JUnit
  • Mockk
  • Docker

Projects

  • Noah BabyShower Invitation Card

    Invitation card for Noah's baby shower, a cute little baby who is coming to this world soon, or... has he already arrived?

    It was developed using React.js and Tailwind CSS, and it features a responsive design so it can be viewed on mobile, tablet, and desktop screens.

    Screenshots of invitation card for Noah's baby shower