Ismael Jimenez

Senior Full-Stack Engineer — React, TypeScript, Python, AWS. Frontend architecture and distributed systems.

Summary

Senior full-stack engineer with 19 years of experience building and modernizing enterprise web platforms across cybersecurity, financial services, SaaS, and consulting environments. Specialized in React, TypeScript, Next.js, Python, FastAPI, AWS, and Terraform, with experience spanning frontend architecture, domain-driven backend services, distributed workflows, event-driven infrastructure, and cloud deployments. Experienced in leading technical initiatives, modernizing legacy applications, and delivering maintainable production systems for distributed international teams.

Technical Expertise

Frontend
React, Next.js, TypeScript, JavaScript, Tailwind CSS, Angular, Vue, GraphQL, design systems, component architecture
Backend
Python, FastAPI, Pydantic, Node.js, REST APIs, domain-driven design, microservices, asynchronous processing
Cloud & Infrastructure
AWS Lambda, API Gateway, EventBridge, EC2, S3, CloudFront, CloudWatch, Route 53, Terraform, Docker, CI/CD
Data & Practices
MySQL, PostgreSQL, SQL Server, MariaDB, distributed systems, event-driven architecture, idempotency, concurrency control, observability, legacy modernization
Earlier stack
C#, ASP.NET, WCF, SharePoint, VB6, Sybase

Experience

Senior Full-Stack Engineer

Fama Technologies Inc.
Nov 2022 – Present
  • Lead frontend development for production applications using React, Next.js, TypeScript, and Tailwind CSS, establishing reusable component patterns and implementing complex user workflows.
  • Design and maintain Python and FastAPI services within a domain-driven microservice platform, including API contracts, validation models, persistent workflows, and service integrations.
  • Develop and maintain AWS infrastructure using Terraform, including Lambda, S3, CloudWatch, and supporting event-driven integrations.
  • Diagnose concurrency, idempotency, retry, data-consistency, and performance issues across distributed workflows and high-volume processing operations.
  • Collaborate across product, design, frontend, backend, and infrastructure teams to translate business requirements into maintainable technical solutions.
  • Modernize legacy areas incrementally while preserving production stability and delivery velocity.

Senior Full-Stack Engineer

Oowlish · Contract
Nov 2021 – Nov 2022
  • Designed the frontend architecture for full-stack applications using Next.js and React, defining reusable patterns for application structure and UI development.
  • Built Python integrations with persistent data layers through AWS Lambda, API Gateway, and event-driven services.
  • Provisioned application infrastructure with Terraform to support repeatable and maintainable AWS deployments.
  • Delivered production features across frontend, backend, and cloud infrastructure in collaboration with distributed client teams.

Senior UI/UX and IoT Security Platform Developer

Digitalware, Inc. · New York, USA
Apr 2020 – Nov 2021
  • Designed and developed a reusable design system for internal dashboard applications using React, GraphQL, AWS, and Docker.
  • Modernized legacy React class components into hooks and context-based patterns, improving maintainability and consistency across the frontend codebase.
  • Implemented user-management and authorization integrations with Keycloak and on-premises services.
  • Improved the architecture of a security-focused platform while supporting existing production workflows.

Independent Software Consultant

Part-time · Selected Engagements
Apr 2018 – Present
  • Deliver web applications and reusable UI components using React, Angular, Vue, TypeScript, HTML, Sass, and related technologies.
  • Build CI/CD workflows using Git-based platforms and containerized development and deployment processes.
  • Support production deployments and cloud infrastructure across AWS and Google Cloud environments.
  • Create Docker-based workflows that coordinate frontend and backend development environments.

Frontend Developer

ExB Group · Germany
Nov 2016 – Apr 2018
  • Built web applications with Angular and supported the migration of legacy AngularJS applications to modern Angular versions.
  • Developed a shared SCSS UI toolkit to provide a consistent user experience across multiple applications.
  • Refactored legacy frontend code to improve maintainability and support continued product development.

Frontend Developer

NATEK · Credit Suisse Contractor · Poland
2015 – Oct 2016
  • Built reusable web components for internal banking applications, consuming real-time data through WebSocket streams.
  • Developed plugin-style components for AngularJS applications using HTML5, CSS, ES6, Sass, and Webpack.
  • Delivered frontend capabilities within a regulated international financial-services environment.

Web Developer

Intertec International · Wells Fargo Contractor · Costa Rica
Dec 2012 – Aug 2015
  • Developed internal SharePoint solutions for the Information Security organization at Wells Fargo.
  • Built management dashboards, data-driven forms, and collaboration tools using SharePoint, jQuery, InfoPath, lists, and document libraries.
  • Supported and maintained enterprise team environments used by internal stakeholders.

Earlier Experience · 2007–2012

Software engineering and consulting roles at Quintec, Diebold Nixdorf, Rolsoft, and Sistran Informática. Built enterprise SharePoint solutions, business-intelligence dashboards, ATM transaction applications, and Java/.NET systems using ASP.NET, WCF, SQL Server, JavaScript, HTML, CSS, Visual Basic 6, and Sybase.

Selected Public Work

GitHub Portfolio

Public software projects and experiments spanning frontend, full-stack development, and software architecture.
github.com/ismaproco

Education

Pontificia Universidad Javeriana

Master’s in Banking and Finance · In progress
Research focus: project finance, valuation, capital structure, and the financial viability of data-center infrastructure in Colombia.
In progress

OBS Business School / Universitat de Barcelona

Executive MBA, Business Administration and Management
2020 – 2021

Universidad Piloto de Colombia

Systems Engineering · Web Applications
2005 – 2011

Professional Development