M

Marcos

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Frontend Developer
Guatemala
Contact Marcos regarding: 
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Full-time jobs
Starting at USD30k/year

Timeline

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Résumé

Jobs verified_user 0% verified
  • E
    Engineering Lead / Senior Full Stack Developer
    Exiqtive
    Jan 2024 - Current (2 years 9 months)
    • Led a multidisciplinary team of 13 people (Backend, Frontend, and QA), coordinating sprints, software architecture, and production releases.
    • Designed and built the internal mobile app using React Native and TypeScript once the web product was stable and free of pending requirements.
    • Designed the CI/CD pipeline to automate deployments and unify development, testing, and production environments.
    • Implemented the automated QA strategy by migrating the testing stack from Cypress to Playwright to secure critical platform flows.
  • U
    Senior Full Stack Consultant
    Upwork Global Inc.
    Jul 2022 - Dec 2023 (1 year 6 months)
    • Ranked in the Top 3% of global talent on the platform ("Top Rated Plus") with a 100% Job Success Rate, managing and delivering projects end-to-end.
    • Built the complete frontend of the Hirefly platform (hireflyapp.com) using Vue.js, focused on performance and responsive UI.
    • For clients in banking and insurance, developed dynamic modular applications using Vue.js injected directly into the HubSpot CMS ecosystem.
    • Translated complex web interfaces from Figma and Adobe XD designs into clean, structured, and reusable code.
  • Checkly
    Frontend Developer
    Checkly
    Feb 2021 - Jun 2022 (1 year 5 months)
    • Developed the official landing page for the "Terraform Provider" product using plain HTML, CSS, and JavaScript to optimize performance and load speed.
    • Maintained and refactored web applications built on a PHP monolith, improving client-side logic.
Projects (professional or personal) verified_user 0% verified
  • Personal
    SnapScale — Multi-Account Social Media Automation
    Personal
    Jan 2025 - Current (1 year 9 months)
    Core Stack: Vue 3, Quasar, Pinia, Node.js, Express 5, Supabase, Docker
    • Built a full-featured platform (SPA/PWA) to manage large-scale account automations.
    • The frontend (phonedashboard) includes a panel with 30+ views, role-based access control (RBAC), offline mode with Workbox, and real-time communication via Socket.IO.
    • The backend (phonehandler) is a Node.js REST API managing file upload queues, proxy rotation, and third-party integrations (GeeLark Cloud API, SMSPool, Google OAuth2/IMAP).
  • Personal
    GeeLark ADB Server — Android Cloud Orchestration Engine
    Personal
    Jan 2025
    Core Stack: Node.js, Express, BullMQ, Redis, WebdriverIO, Appium, PostgreSQL
    • Built an automation server to control Android cloud devices in parallel.
    • Implemented a distributed queue system using BullMQ and Redis to handle concurrency and run multi-stage pipelines (emulator provisioning, APK installation, and automated account warm-up).
  • Personal
    Redroid Farm — Android Emulator Farm with Detection Bypass
    Personal
    Jan 2024
    Core Stack: Android 11, ReDroid, Docker Compose, Frida, Magisk, Systemd
    • Deployed infrastructure on bare-metal servers running multiple isolated Android 11 containers using Docker Compose.
    • Configured virtual environment detection evasion by injecting unique hardware fingerprints (Samsung, Pixel, Xiaomi) via Magisk and resetprop.
    • Wrote dynamic instrumentation scripts with Frida (JS) to intercept system signatures and native auto-close calls from the Instagram app, achieving stability in automated runs.
  • Personal
    Xarvee — Anti-Detection Browser Bot Farm
    Personal
    Jan 2024
    Core Stack: Python, Playwright, CDP, Instagrapi, Docker
    • Developed a Python system to operate automated publishing and mass interaction flows on Instagram in an undetectable manner.
    • Phase 1: Authentication using Playwright and Chrome DevTools Protocol on AdsPower anti-detection browser profiles, handling automatic 2FA (TOTP) and captchas.
    • Phase 2: Background workers using instagrapi for daily task execution based on a state store, with random delays and JS-driven clicks to emulate human behavior.
  • Independent
    Commercial Management SaaS with Integrated AI Chatbot
    Independent
    Jan 2023 - Jan 2024 (1 year 1 month)
    Core Stack: Python, FastAPI, Vue.js, n8n, Meta Business API
    • Built a full web application for appointment and calendar management in barbershops and beauty salons.
    • Developed the interactive frontend with Vue.js and the backend with FastAPI in Python.
    • Orchestrated an automated chatbot connected to the official Meta API using n8n flows with 50+ nodes, structured under a router and text-classifier architecture to book appointments autonomously.
  • Personal
    Ethnicolor — Demographic Filtering Microservice with ML
    Personal
    Jan 2023
    Core Stack: Python, FastAPI, TensorFlow, Docker
    • Developed a Python API that processes social media leads and predicts gender and ethnicity from names using TensorFlow models and text classification algorithms.
  • Personal
    Distribution Logistics Mobile App
    Personal
    Jan 2023
    Core Stack: React Native, TypeScript, Node.js
    • Built the mobile app for a consumer goods distributor, enabling logistics and order management control.