JavierSánchezSoftware Developer Engineer
844 127 7044Phonecontact@javiersanchez.devEmailgithub.com/xtrs84zkGitHublinkedin.com/in/xtrs84zkLinkedIn
Education
Computer Systems Engineering
specialty on Internet of Things
Instituto Tecnológico de Saltillo
2015 - 2021
Skills
Programming Languages
  • JavaScript
  • TypeScript
  • SQL
Frameworks and Tools
  • React JS
  • React Native
  • Redux-Saga
  • Socket.io
  • Docker
  • Electron
  • Node JS
  • Git
  • GCP
  • AWS
Languages
  • Spanish (Native)
  • English (C1)
Profile
Full-stack developer with experience delivering innovative software products and designing scalable solutions that leverage cutting-edge frameworks such as React JS, React Native, and Electron. Proven ability to collaborate effectively with diverse teams in fast-paced Agile environments while maintaining a high level of quality and attention to detail.
Experience
Nagarro | 2024 - Present
Senior Engineer

Digital Retail Platform | React, TypeScript, Node.js, AWS Cloudfront, EBS, Lambda, Gateway, Route 53, EC2, S3, DynamoDB, MongoDB, Redux, Socket.io, Docker, Bun, MCP, Webpack, Jest, Playwright, Storybook, Testcafe, NewRelic, Styled Components, GH Actions / Workflows
A web-based retailing solution that guides customers through personalized deal structuring.
  • Led end-to-end feature development for multiple product initiatives, driving alignment between Engineering, Product, and Design teams. Responsibilities included deriving user stories, technical spikes, and ensuring comprehensive documentation.
  • Modernized critical infrastructure by upgrading core dependencies (Node, TypeScript, React, Webpack), significantly improving security, developer efficiency, and application performance.
  • Designed and implemented AI Agent experiences for internal software repositories. Defined the strategic instruction sets and foundational prompts required to automate workflows and accelerate development cycles.
ProcessWay Technologies | 2020 - 2023
Software Developer Engineer

Convos | React Native, TypeScript, Node.js, AWS Lambda, EC2, S3, Amplify, MySQL, Redis, Redux-Saga, Socket.io, Docker.
A cross-platform mobile app for secure, geofence-based communication without exchanging personal info.
  • Engineered cross-platform UIs and real-time data flows using WebSockets, Redis, and Redux-Saga for seamless messaging across Android and iOS.
  • Implemented a targeted push notification system using FCM and APNs to drive user engagement for individual and group messages.
  • Managed complex React Native upgrades and dependency migrations to ensure compliance with Play Store target SDK requirements.
  • Optimized app performance by introducing a splash screen and reducing installation size by 60% through custom camera module implementation.
Creative Fabrica | AWS Lambda, AWS DynamoDB, Node.js, TypeScript, MySQL, Docker.
An online digital asset library featuring a high-performance search engine for a vast product catalog.
  • Architected the initial code structure and API endpoints, setting the foundation for scalable development and selecting key dependencies.
  • Designed a robust data pipeline to migrate and transform data from MySQL to DynamoDB, enabling efficient querying of large datasets.
  • Built a reusable, server-side rendered (SSR) component for displaying product listings with optimal performance and SEO benefits.
BScout | React, TypeScript, Electron, SQLite, AWS Lambda, Node.js, Video.js, FFMPEG.
A desktop video analysis tool for sports footage, featuring video editing and annotation capabilities.
  • Architected application state management using React Context API for a responsive user experience across complex workflows.
  • Developed video clipping and annotation features by integrating Video.js and FFMPEG within an Electron environment, allowing precise media manipulation.
  • Implemented IPC bridges to seamlessly connect native SQLite queries with the React frontend, ensuring fast data retrieval.
Lykas Life | Next.js, Redux-Saga.
A financial wellness dashboard providing personalized insights and long-term projections.
  • Refined UI components to match evolving requirements, ensuring a consistent and intuitive user experience.
  • Enhanced state management reliability by leveraging Redux-Saga for robust side-effect handling and accurate loading state reflection.
AAA House Manager | React, Gatsby, Node.js, MySQL, Contentful CMS, GCP.
A platform connecting homeowners with service providers for maintenance tasks.
  • Delivered a responsive landing page redesign driven by dynamic content from Contentful CMS.
  • Developed a scalable API to manage and retrieve customer benefit data.
  • Modernized the physical checkout tool codebase to integrate seamlessly with updated backend APIs.
Hello Sidecar | React, TypeScript, PostgreSQL.
A digital onboarding platform for employee fund investments.
  • Engineered a dynamic form engine to render Django-backed questionnaires into interactive UI components.
  • Created a visual dashboard to provide users with clear, real-time insights into their investment portfolios.
Gig Car Share | Preact, TypeScript, Express.js
A locator service for finding free charging stations for car share customers.
  • Built an interactive, swipe-enabled charging station locator to enhance the mobile user experience.