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I'm Jorge Beltrán Pastor, a frontend and full-stack engineer with 15+ years of experience, currently leading frontend initiatives and mentoring others. I have a strong foundation in JavaScript/TypeScript, Node/Bun, React, and APIs, and I'm passionate about clean, efficient software development with TDD, KISS, and SOLID. My approach is meticulous and self-driven, shaped by a passion for continuous learning and improvement. I stay on the cutting edge of web technologies, contribute to resources like MDN, and keep up-to-date with the latest ECMAScript specs and TS proposals. I value detail-oriented, user-centric solutions and bring a measured, creative flair to design and interactions. Colleagues recognize my attention to detail and commitment to delivering high-quality results.…I'm Jorge Beltrán Pastor, a frontend and full-stack engineer with 15+ years of experience, currently leading frontend initiatives and mentoring others. I have a strong foundation in JavaScript/TypeScript, Node/Bun, React, and APIs, and I'm passionate about clean, efficient software development with TDD, KISS, and SOLID. My approach is meticulous and self-driven, shaped by a passion for continuous learning and improvement. I stay on the cutting edge of web technologies, contribute to resources like MDN, and keep up-to-date with the latest ECMAScript specs and TS proposals. I value detail-oriented, user-centric solutions and bring a measured, creative flair to design and interactions. Colleagues recognize my attention to detail and commitment to delivering high-quality results.

Jorge Beltran

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

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I'm Jorge Beltrán Pastor, a frontend and full-stack engineer with 15+ years of experience, currently leading frontend initiatives and mentoring others. I have a strong foundation in JavaScript/TypeScript, Node/Bun, React, and APIs, and I'm passionate about clean, efficient software development with TDD, KISS, and SOLID. My approach is meticulous and self-driven, shaped by a passion for continuous learning and improvement. I stay on the cutting edge of web technologies, contribute to resources like MDN, and keep up-to-date with the latest ECMAScript specs and TS proposals. I value detail-oriented, user-centric solutions and bring a measured, creative flair to design and interactions. Colleagues recognize my attention to detail and commitment to delivering high-quality results.…I'm Jorge Beltrán Pastor, a frontend and full-stack engineer with 15+ years of experience, currently leading frontend initiatives and mentoring others. I have a strong foundation in JavaScript/TypeScript, Node/Bun, React, and APIs, and I'm passionate about clean, efficient software development with TDD, KISS, and SOLID. My approach is meticulous and self-driven, shaped by a passion for continuous learning and improvement. I stay on the cutting edge of web technologies, contribute to resources like MDN, and keep up-to-date with the latest ECMAScript specs and TS proposals. I value detail-oriented, user-centric solutions and bring a measured, creative flair to design and interactions. Colleagues recognize my attention to detail and commitment to delivering high-quality results.

Available to hire

I’m Jorge Beltrán Pastor, a frontend and full-stack engineer with 15+ years of experience, currently leading frontend initiatives and mentoring others. I have a strong foundation in JavaScript/TypeScript, Node/Bun, React, and APIs, and I’m passionate about clean, efficient software development with TDD, KISS, and SOLID. My approach is meticulous and self-driven, shaped by a passion for continuous learning and improvement.

I stay on the cutting edge of web technologies, contribute to resources like MDN, and keep up-to-date with the latest ECMAScript specs and TS proposals. I value detail-oriented, user-centric solutions and bring a measured, creative flair to design and interactions. Colleagues recognize my attention to detail and commitment to delivering high-quality results.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Spanish; Castilian

Fluent

Work Experience

Senior Frontend Developer at Contractor

January 1, 2023 - December 31, 2024

Starting the development of various applications for third-party clients using advanced React frameworks like Next.js and Gatsby, integrating Web3.js for blockchain functionalities. Role involved strategic use of Node.js with Express for REST APIs to create robust, scalable applications. Also contributing to QA by improving Playwright integration tests and Vitest unit tests.

Senior Frontend Engineer at Sphinx

January 1, 2024 - December 31, 2025

Currently leading the frontend implementation of the exchange application using React, Zustand and TanStack libraries, integrating Cosmos blockchain and interacting with Keplr wallet through @cosmjs and @keplr-wallet. Role includes using gRPC, websockets and APIs with Go to build the company stack, and extending blockchain functionality with Cosmos SDK.

Senior Frontend Developer at Contractor

January 1, 2020 - December 31, 2021

Developed and integrated advanced frameworks such as Pixi.js for WebGL rendering and GSAP for dynamic animations. Implemented robust testing with Jest, and set up new projects using Parcel, Babel, and TypeScript.

Tech Lead Frontend at The Workshop

January 1, 2017 - December 31, 2020

Coordinated UI tasks and ensured code quality across the team, developing web applications with Angular 2, RxJS, Mobx.js, and ngrx/store in TypeScript. Extended internal framework with reusable web components, defining and implementing testing protocols to maintain high standards.

Frontend Developer at William Hill

January 1, 2014 - December 31, 2017

Frontend development for sports book applications with Node.js REST APIs, and extensive work with AngularJS, Express, and related technologies to enhance frontend functionalities.

Frontend Developer at Video Stream Network

January 1, 2012 - December 31, 2014

Developed and refined a proprietary JavaScript framework, designing user interfaces, and creating custom jQuery UI widgets to enhance interactivity and user experience.

Frontend Developer at Nemertes

January 1, 2010 - December 31, 2011

Engaged in full-stack web development, crafting responsive designs with HTML, CSS, JavaScript, and .NET, and managing data interactions using MySQL and Google Maps API to deliver comprehensive user-centric solutions.