Career

Work experience

Four stages, one direction: from building interfaces from scratch to modernizing enterprise systems that can't stop running.

  1. Stage 01 · Foundations

    Servicio Geológico Colombiano

    Frontend Developer

    Learning to build frontend products from scratch.

    • Built the public earthquake and volcano viewers from scratch, with interactive maps and detail views.
    • Made large volumes of geoscientific data navigable through search, filters, sorting, charts and tables.
    • Developed a historical catalog and contributed to modules of the institutional portal.

    Key technologies

    • React
    • JavaScript
    • Redux
    • Sass
    • Interactive maps
    • Data visualization
    • REST APIs
    See featured project Company site ↗
  2. Stage 02 · Technical depth

    LinkedAI

    Frontend Developer

    From displaying information to building specialized graphic tools.

    • Built interactive annotation, segmentation and object editing tools on HTML Canvas for computer vision datasets.
    • Handled complex state across projects, datasets, images and review flows at scale.
    • Contributed to AI-assisted labeling features and to the platform's testing culture.

    Key technologies

    • React
    • Redux
    • HTML Canvas
    • GraphQL
    • Jest
    • React Testing Library
    • AWS
    • Computer vision
    See featured project
  3. Stage 03 · Adaptability + AI

    57Blocks

    Frontend Developer Presidium Residential · IndyCar Series

    Learning to enter unfamiliar domains and turn ideas into solutions.

    • Worked across several products for international clients: web, mobile and conversion-oriented experiences for massive-scale events.
    • Entered unfamiliar domains with little prior context, and learned Flutter to contribute to mobile applications.
    • Took part in technical and architecture decisions under hexagonal architecture principles, and carried an internal AI initiative from demo to MVP.

    Key technologies

    • React
    • TypeScript
    • Next.js
    • Flutter
    • LLMs
    • RAG
    • Dify
    • n8n
    See featured project Company site ↗
  4. Stage 04 · Enterprise complexity

    Cafeto Software / Apptega

    Senior Frontend Developer

    Evolving a platform that thousands of customers use every day, without stopping it.

    • Progressive modernization of a cybersecurity and compliance SaaS platform, with Angular legacy and new React modules.
    • Worked inside a multi-repository, dockerized ecosystem with shared packages and independent services.
    • Contributed to design systems, testing, estimations and technical decisions alongside international teams.

    Key technologies

    • React
    • TypeScript
    • Docker
    • Testing
    • Design Systems
    • Multi-repo
    • Bounded Contexts
    • Claude
    See featured project Cafeto Software ↗ Apptega ↗

New opportunities

Available for the next challenge

I'm looking for remote opportunities where I can contribute through frontend engineering, product thinking and applied AI, while taking ownership of complex digital products.

Frontend Developer · Frontend Engineer · Product Engineering

Download CV

a.santiago.salas.b@gmail.com · Colombia · Remote

Let's talk

I'm looking for remote opportunities where I can contribute through frontend engineering, product thinking and applied AI, while taking ownership of complex digital products.

Frontend Developer · Frontend Engineer · Product Engineering

Email Download CV