Sergio Esteban Torres
Senior frontend engineer. 8+ years building fast, reliable web products. These days: React and TypeScript.
Colombia · UTC−05 · Remote · ES / EN
Experience
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–now
Senior Frontend Engineer · PartsBase contract
PartsBase is a B2B marketplace for aviation parts. I look after six production single-page apps, S3-hosted, with a running focus on performance, security remediation, and CI on Azure DevOps.
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Frontend Developer · Lifetiment
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Frontend Web Developer · Marketmov
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Freelance & personal projects
Where the 8+ years start counting.
Selected work
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lab / instrument
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lab / cdt-ladder
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building this site
The case study behind this page: every claim anchored to the repo or its git history.
Capabilities
- Core
- JavaScript · TypeScript · React · Next.js · Redux
- Platform
- Node.js · Firebase · PostgreSQL · unit testing · AWS (fundamentals)
- Practice
- Business administration before engineering, so technical decisions get weighed in commercial terms. AI-assisted workflows are part of daily practice, held to a strict verification bar: generated code is reviewed, tested, and owned like anything else that ships.
Contact
Building something that needs a senior frontend hand?
Spanish (native) · English (professional)