Juan Barba

Deliver end-to-end SaaS products for clients using NestJS, Angular, and Cloudflare, handling architecture, development, and deployment. Leverage AI-powered development tools including Claude (skills and subagents), Speckit, and OpenSpec to accelerate delivery and maintain high code quality. Implement UI workflows using Google Stitch, streamlining front-end development and prototyping for client pr

Deliver end-to-end SaaS projects handling architecture, development, and deployment. Used NestJS, Angular, and Cloudflare, along with AI-powered development workflows and front-end prototyping tools.

Founded JB Dev as my own software studio — a one-person operation built around a simple idea: businesses deserve a technical partner who owns the full product cycle, not just a contractor who closes tickets.

JB Dev is where I take on projects directly, from architecture to deployment, under my own brand and with full accountability for results.

What I build under JB Dev:
◆ Web applications and M

Sole developer responsible for the entire technical lifecycle of a complex multi-tenant SaaS platform, from architecture and development to deployment and infrastructure. Build and iterate rapidly on features using TypeScript, React, Angular, NestJS (Express), and PostgreSQL, adapting to evolving product requirements in a fast-paced startup environment. Own and manage the full AWS cloud infrastruc

Led full-stack technical development from early product discovery through scalable architecture. Implemented a structured NestJS/Angular ecosystem, drove a SolidJS-to-Angular migration, and established architecture-first standards to improve testability and AI-assisted delivery.

Led full-stack technical development from inceptionon a product built under high uncertainty — translatng ambiguous business requirements into scalable, mantainable architectures.

◆ Designed and implementeda structured NestJS / Angular ecosystem that enabledconsistent, predictable growth and accelerated delivry cycles.
◆ Drove a strategic migration from SolidJ to Angular, reducing technical frict

Led development of multisite, multilingual web platforms serving high-traffic international audiences using PHP, React, and TypeScript. Architected and maintained CI/CD pipelines with Bitbucket and Docker, streamlining deployments and reducing release cycles. Managed AWS cloud infrastructure ensuring scalability, security, and reliable content delivery across multiple regions. Mentored junior deve

Embedded full-stack developer for a Canadian softwae consultancy, delivering web products for their clients over nearly four years.

◆ Built ad maintained complex web applications across multipl client projects, owning frontend architecture and ky backend integrations.
◆ Contributed to the migratin of Sony's TV channels platform from Drupal 7 to Drpal 9 — a large-scale multisite, multilingual syst

Freelance full-stack developer for a blockchain gamng company, building the technical infrastructure connecting games with crypto-basedservices.

◆ Built PHP middleware backend integratin multiple games with Ethereum-based services for in-ame item ownership.
◆ Developed Unity3D UI/UX layer andling communication with external blockchain servies.
◆ Maintained and upgraded core systems across mutiple

Freelance developer contracted to build an interactve training application for LG, designed to teach technicians how to servicea specific industrial air conditioning unit.

◆ Built an interctive app guiding technicians through maintenance procedures for a specific LG indutrial AC unit.
◆ Delivered a self-contained, client-ready produc within a 2-month engagement.

Front-end engineer on large-scale site migration prjects for US-based clients, working across React andDrupal stacks.

◆ Led frontend migration from a legay Django site, rebuilding styles and behaviours acros all viewports and devices.
◆ Migrated a Drupal 7 ste to Drupal 8, implementing new style guides and Rect components alongside the backend team.
◆ Integratd multiple search engines (Solr, Elas

Architected back-end services with Symfony and integrated Elasticsearch for advanced search with facets and autocomplete. Built interactive React components with TypeScript, delivering a fast, dynamic user experience for the content platform. Designed scalable API architectures connecting Drupal CMS with modern front-end frameworks for high-content environments.

Core frontend engineer on the full redesign and relunch of foreignaffairs.com, one of the most recognised political publications inthe world. The new Drupal 8 site launched on March 2, 2020.

◆ Led a significant portion of frontend devlopment, including custom CSS/JS, responsive design,and React components built alongside the Drupal 8 bakend team.
◆ Integrated multiple search engines (Sol, Elastic

Full-stack developer at a Panamanian custom softwar agency for over seven years, delivering web product for a wide range of clients across multiple industres.

◆ Built complete web applications using Angular, Vue, React and Drupal (6,7 and 8) across dozens of client projects spanning fntech, media, and e-commerce.
◆ Developed a complex ulti-step research request form for Pfizer, used by niversitie

Developed a queue management MVP using Laravel (API), React, and React Native, leading the project from concept to deployment. Built a nationwide data collection platform for Panama using Angular, RxJS, and Symfony, serving the entire population. Delivered 10+ web applications across diverse industries using PHP, JavaScript, MySQL, and modern frameworks. Progressively advanced from junior develope

►I gave some contributions to the Fedora Project in the Fedora Design team, helping local ambassadors to bring up art assets for marketing. I also helped to create some mockups for the art workflow of Fedora 16's official wallpaper
►I create an RPM package for a Python library and gave it to community so everybody can install it
►I gave a workshop about Open Source art design software like Inkscap

Learned about Software development, information technologies, operative systems, finance, Software engineering, database management and programming, Software project management.¯