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Valentin Osorio

Hey, I'm Valentín.

Software Engineer with +4 years of experience. Proven track record delivering product solutions. Building large, complex backend systems and frontend applications.

Systems and Computer Engineer - UNAL

Medellín, Colombia

Professional Experience

  1. Software Engineer - Linqia

    Link to Software Engineer - Linqia

    Responsible for designing, building and maintaining backend systems, frontend applications and data pipelines for an influencer marketing platform, powering creator discovery, qualification and campaign analytics across Instagram, TikTok and other social networks.

    • Built the end-to-end integration between Marco, Linqia's AI copilot, and Discovery, persisting its answers and applying them as frontend filters so users can turn a natural-language question into a filtered creator list.
    • Turned an unreliable, rate-limited TikTok ingestion pipeline into an explicitly budgeted one with per-endpoint quota allocation, capped concurrency and randomized-backoff requeues, keeping every creator in Discovery up to date without wasting a single API call.
    • Increased the reliability and observability of the campaign creator data pipeline by designing and building from scratch, with AI assistance, a Kubernetes-hosted interactive Instagram scraper that bypasses anti-bot detection through rotating IP proxies, using retries, caching and provider fallbacks to keep costs under control.
    • Vue.js
    • FastAPI
    • JavaScript
    • TypeScript
    • Python
    • AWS
    • Systems Design
    • Kubernetes
    • Playwright
    • Java
    • Cost Estimation
    • Effort Estimation
    • Project Planning
    • Mentoring
  2. Software Developer - Apside

    Link to Software Developer - Apside

    Responsible for developing and maintaining features across multiple frontend and backend microservices for insurance quoting tools used by sales executives.

    • Optimized the identity validation flow to block quotes for users with restricted IDs and prevent executives from quoting for themselves, saving sales teams 20% of their time by discarding invalid quotes early.
    • Implemented campaign-based discounts in the quoting flow, keeping it fast through caching and efficient data structures.
    • Vue.js
    • FastAPI
    • AWS
    • AWS CodeBuild
    • AWS CodeDeploy
    • Docker
    • Python
    • TypeScript
    • Sass
    • TailwindCSS
    • Vitest
    • Cypress
  3. Frontend Developer - Unergy

    Link to Frontend Developer - Unergy

    Responsible for developing and maintaining features of a web3 crowdfunding platform for solar energy projects, turning designs and requirements into interactive, user-friendly interfaces.

    • Improved first-page load time by 30% through asynchronous loading and asset optimization.
    • Collaborated with the backend and blockchain teams to integrate new features and led the implementation of several of them.
    • Organized, using an agile approach, the development of a responsive dashboard with real-time measurement and profitability charts for institutional investors; it launched on schedule and was highly praised by key clients.
    • Vue.js
    • Nuxt.js
    • Javascript
    • TypeScript
    • HTML
    • CSS
    • Amazon EC2
    • Sass
    • Vuex
    • Pinia
    • JWT
    • OAuth2
    • npm
    • Websockets
    • TanStack Query
    • Docker

Technology Stack

Languages

  • TypeScript logo TypeScript
  • JavaScript logo JavaScript
  • Python logo Python
  • Java logo Java

Frontend

  • Vue.js logo Vue.js
  • React.js logo React.js
  • HTML logo HTML
  • CSS logo CSS
  • Sass logo Sass

Backend

  • FastAPI logo FastAPI
  • Kafka logo Kafka
  • Node.js logo Node.js

Database

  • PostgreSQL logo PostgreSQL
  • MySQL logo MySQL
  • Redis logo Redis
  • DynamoDB logo DynamoDB

DevOps & Cloud

  • Kubernetes logo Kubernetes
  • Docker logo Docker
  • AWS logo AWS
  • GCloud logo GCloud

Testing

  • Pytest logo Pytest
  • Vitest logo Vitest
  • Playwright logo Playwright

CI/CD

  • Jenkins logo Jenkins
  • GitHub logo GitHub
  • AWS CodeBuild logo AWS CodeBuild
  • AWS CodeDeploy logo AWS CodeDeploy

Tools

  • Claude Code logo Claude Code
  • Codex logo Codex
  • Git logo Git
  • VS Code logo VS Code
  • DataGrip logo DataGrip
  • DBeaver logo DBeaver
  • Postman logo Postman
  • Figma logo Figma
  • Excalidraw logo Excalidraw

Projects

  • PokeStrategy
    Link to the project PokeStrategy

    Search for any Pokémon by name to see its basic information (abilities and types) and, in one place, the types it is strong, weak or neutral against.

    • Vue.js
    • TypeScript
    • TailwindCSS
    • SQLite
    • Netlify
    • drizzle-orm
    • Tanstack Query
    • Clean Architecture
    • Design Patterns
    • Pinia
  • EstuResidencia
    Link to the project EstuResidencia

    EstuResidencia is a mobile app that connects landlords with students, making it easy to publish, centralize and find student-friendly rentals.

    • Vue.js
    • Flutter
    • AWS
    • Figma
    • Clean Architecture
    • Design Patterns
    • Django
    • PostgreSQL

About

Valentín Osorio

I am a Software Engineer with +4 years of experience delivering product solutions. My tech stack is primarily Python, TypeScript, Java, Kubernetes and AWS. I enjoy owning features end to end: from system design and effort/cost estimation to AI-assisted implementation. I also focus on observability and mentoring other engineers. I am committed to building scalable solutions that align with business goals without compromising code quality.

I hold a degree in Systems Engineering and Computer Science from the National University of Colombia, graduating with a 4.6/5.0 GPA. I am disciplined, punctual, determined and proactive, and I thrive in agile environments, both contributing and leading, where collaboration and communication are key.

Outside of work, I love playing video games, making coffee and spending time with my family and my cats.

What's next?

Feel free to reach out by email or WhatsApp.

osoriovalentin5@gmail.com

+57 313 786 5160

You can also find me on:

Curriculum Vitae

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