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I'm Israel Ortiz Cortés, a Senior Software Engineer and Tech Lead with 15+ years of building scalable web applications and leading engineering teams. I specialize in React, Next.js, TypeScript, and modern frontend architecture, delivering high-performance SaaS platforms in fintech and enterprise environments. I place a strong emphasis on accessibility (WCAG 2.1), performance optimization, and delightful user experiences. I work as a full-stack developer with React ecosystem, Node.js, and cloud infrastructure (AWS). I thrive on cross-functional collaboration, establishing engineering standards, and implementing CI/CD pipelines. I'm passionate about translating business requirements into scalable technical solutions and mentoring teams in agile environments.…I'm Israel Ortiz Cortés, a Senior Software Engineer and Tech Lead with 15+ years of building scalable web applications and leading engineering teams. I specialize in React, Next.js, TypeScript, and modern frontend architecture, delivering high-performance SaaS platforms in fintech and enterprise environments. I place a strong emphasis on accessibility (WCAG 2.1), performance optimization, and delightful user experiences. I work as a full-stack developer with React ecosystem, Node.js, and cloud infrastructure (AWS). I thrive on cross-functional collaboration, establishing engineering standards, and implementing CI/CD pipelines. I'm passionate about translating business requirements into scalable technical solutions and mentoring teams in agile environments.

Israel Ortiz Cortés

Full Stack Developer, Front-End Developer, Back-End Developer, +2

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I'm Israel Ortiz Cortés, a Senior Software Engineer and Tech Lead with 15+ years of building scalable web applications and leading engineering teams. I specialize in React, Next.js, TypeScript, and modern frontend architecture, delivering high-performance SaaS platforms in fintech and enterprise environments. I place a strong emphasis on accessibility (WCAG 2.1), performance optimization, and delightful user experiences. I work as a full-stack developer with React ecosystem, Node.js, and cloud infrastructure (AWS). I thrive on cross-functional collaboration, establishing engineering standards, and implementing CI/CD pipelines. I'm passionate about translating business requirements into scalable technical solutions and mentoring teams in agile environments.…I'm Israel Ortiz Cortés, a Senior Software Engineer and Tech Lead with 15+ years of building scalable web applications and leading engineering teams. I specialize in React, Next.js, TypeScript, and modern frontend architecture, delivering high-performance SaaS platforms in fintech and enterprise environments. I place a strong emphasis on accessibility (WCAG 2.1), performance optimization, and delightful user experiences. I work as a full-stack developer with React ecosystem, Node.js, and cloud infrastructure (AWS). I thrive on cross-functional collaboration, establishing engineering standards, and implementing CI/CD pipelines. I'm passionate about translating business requirements into scalable technical solutions and mentoring teams in agile environments.

Available to hire

I’m Israel Ortiz Cortés, a Senior Software Engineer and Tech Lead with 15+ years of building scalable web applications and leading engineering teams. I specialize in React, Next.js, TypeScript, and modern frontend architecture, delivering high-performance SaaS platforms in fintech and enterprise environments. I place a strong emphasis on accessibility (WCAG 2.1), performance optimization, and delightful user experiences.
I work as a full-stack developer with React ecosystem, Node.js, and cloud infrastructure (AWS). I thrive on cross-functional collaboration, establishing engineering standards, and implementing CI/CD pipelines. I’m passionate about translating business requirements into scalable technical solutions and mentoring teams in agile environments.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Work Experience

Tech Lead at AllSign

February 1, 2025 - November 6, 2025

Lead technology strategy and product development for a SaaS platform delivering digital signatures and document automation. Architect frontend using SvelteKit and Next.js with TypeScript, drive component-driven design, state management, and responsive systems. Manage a 5+ member engineering team, set engineering standards, and ensure NOM-151 compliance for digital signatures. Implement a comprehensive testing strategy (Jest, Cypress, Pytest) and achieve high code quality. Architect backend with FastAPI microservices, Redis caching, multi-cloud storage (AWS S3, GCP Storage), a PDF processing pipeline (PyMuPDF, PyPDF2), and observability with Logfire. Build Computer Vision/OCR pipelines using Google Vision API, Document AI, YOLO, and OpenCV for intelligent data extraction.

Software Development Engineer at Altruist

March 1, 2025 - March 1, 2025

Led frontend development for a fintech platform serving 10,000+ financial advisors, using React 18+, TypeScript, Next.js, and TanStack Query across multiple product teams. Delivered 15+ features including custom roles/permissions, co-branding UI, and multi-tenant onboarding flows. Implemented Docusign/Hellosign signatures, robust onboarding, and accessible UI (WCAG 2.1). Established testing (Jest, React Testing Library, Playwright) and CI/CD via GitLab; improved performance and reliability with Datadog and Sentry; built a reusable component library to accelerate product velocity.

Senior Software Engineer Technical Lead at Techmake Electronics

March 1, 2021 - March 1, 2021

Led a 3-week bootcamp for 15+ developers; designed AWS infrastructure including Cognito, S3, AppSync, Lambda, and IoT Core; established Git/GitHub workflows, code reviews, and agile project management; introduced testing practices (unit/integration, TDD) to improve quality.

Full-Stack Software Engineer at Handypass.mx

June 1, 2020 - June 1, 2020

Developed SaaS event management platform for 50+ organizations; built interactive UIs with React, modern state management, and component-driven architecture; implemented two platform iterations: AWS serverless stack (Lambda, AppSync GraphQL, Amplify, Cognito) and Firebase (Cloud Functions, Firestore, Auth, Hosting); designed REST APIs with Express.js and secure auth.

Senior Software Engineer at CeroUno

December 1, 2019 - December 1, 2019

Led a 3-week bootcamp, mentoring 15 developers; delivered training in Angular, Firebase integration; established DevOps and code review practices; improved velocity and code quality.

Software Engineer & Team Lead at Colectivo Hygge

August 1, 2018 - August 1, 2018

Co-founded a software consultancy delivering 20+ web applications for fintech, e-commerce, and SaaS sectors. Architected full-stack React/Node apps; implemented Docker-based DevOps and CI/CD pipelines, reducing deployment time by 60% and improving reliability.

Software Engineer at ITerabit

February 1, 2015 - February 1, 2015

Led a development team of 4 engineers across enterprise projects; built a pixel-perfect, responsive UI and integrated with backend APIs. Worked across PHP, MODX, and Node.js to deliver scalable applications for 15+ clients.

Technical Speaker & Community Leader at Javascript Monterrey (Volunteer)

January 1, 2017 - November 6, 2025

Volunteer speaker and community organizer; delivered talks on Docker, DevOps, and CI/CD; led live coding demonstrations and fostered local developer community engagement.