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Yeferson Gamboa
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Neiva, Huila, Colombia
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Senior Software EngineerACRELECJun 2023 - Jun 2025 (2 years 1 month)• Rebuilt checkout flows using React 18, Next.js, and Tailwind CSS, boosting Core Web Vitals from the 70s to 92–98 and increasing add-to-cart conversions by 12%. • Developed an inventory management tool in React with Context API and React Query that connects to Express APIs on MongoDB, reducing manual reporting errors by 85%. • Integrated Socket.io in Node.js to push live stock alerts to React clients and Slack via slash commands, keeping stock-outs ~2% across 1.8k SKUs. • Built a reusable React component library in Storybook to standardize UI across multiple apps, cutting feature development time by 25%.- SSoftware EngineerSofttech Innovations LabJun 2021 - May 2023 (2 years)• Broke a 300k-line Flask monolith into four Node.js/Express microservices and two React front ends, cutting API p95 latency by 40% and doubling throughput. • Built a React dashboard with Hooks and Redux to visualize payment metrics in real time, reducing issue detection time by 50%. • Created RESTful APIs in Express backed by MongoDB with Mongoose, handling 2k requests/sec with
- ISoftware EngineerInnovaTech SolutionsJun 2020 - May 2021 (1 year)• Built an asynchronous purchase-order service in Express with Mongoose, shrinking reconciliation time from three days to same-day and eliminating 85% of manual entries. • Built Express endpoints to process ERP webhooks, converting JSON to MongoDB and automating supplier data ingestion. • Delivered livestock-alerting using Socket.io and Slack slash commands in React, reducing manual checks by 90%. • Deployed a multi-stage Docker + Trivy CI pipeline with GitHub Actions to build and push Docker images to AWS ECR automatically, enabling.
- NJunior Software EngineerNexusSoft SolutionsAug 2018 - Jun 2020 (1 year 11 months)• Refactored an Express checkout API into a combined Node.js/Django setup with Redis caching, cutting average transaction time by 15%. • Built a React admin interface to visualize nightly sales ETL results from MongoDB, saving the team several hours of manual work each week. • Implemented responsive layouts with Flexbox and CSS Grid, ensuring consistent UX across desktop and mobile browsers.
Education
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- Bachelor of ScienceUniversidad Nacional de Colombia