Top Front End Developer Jobs in Leon

Develop and maintain Angular frontend applications for big data analytics, AI-driven data modeling, spatial mapping, and reporting projects. Collaborate with experienced developers in a fully remote environment using AWS and enterprise application design principles. The role requires fluent English, flexible availability, and at least three years of hands-on Angular development experience.

Build and launch a Merchant Portal MVP using an existing design system. Responsibilities include implementing authentication and session flows, developing application status, document upload, and notification features, integrating REST APIs, maintaining frontend test automation, performing functional and end-to-end testing, resolving defects, and collaborating with backend, platform, and QA teams.

Leads the design and development of scalable web UI components and micro frontends using React, Node.js, and related technologies. Provides technical leadership, establishes development standards, optimizes application performance, manages Azure deployments and GitHub Actions CI/CD pipelines, and enforces code quality and security. Supports solution design and planning, engages clients and stakeholders, mentors developers, coordinates delivery activities, and evaluates emerging technologies.

Leads the design, development, and delivery of scalable web applications and micro frontends using React, Node.js, JavaScript, and modern UI technologies. Provides hands-on technical leadership, drives architecture, performance, accessibility, security, code quality, and CI/CD practices. Collaborates with cross-functional teams and clients, mentors developers, coordinates delivery, manages technical standards, and supports solution planning, estimation, and innovation initiatives.

Lead a cross-functional team of frontend and backend engineers building scalable consumer experiences across mobile and client platforms. Own end-to-end UX delivery, partner with Product and Design, uphold engineering standards, improve usability and performance, mentor engineers, and strengthen agile delivery using metrics such as DORA and cycle time.

Design, develop, test, maintain, and optimize enterprise web applications using TypeScript and modern frontend frameworks. Build responsive reusable UI components, integrate RESTful APIs, troubleshoot issues, and improve software quality. Collaborate with backend engineers, product owners, designers, customers, QA, DevOps, and cross-functional teams throughout the software development lifecycle.

Design, build, and maintain consumer-facing features across web (React) and mobile (React Native). Own product lifecycle from discovery through release, monitoring, experimentation, and iteration. Drive A/B testing and feature-flag strategies, make architectural decisions, ensure accessibility/performance/testability, mentor engineers, and collaborate with Product, Design, Data, and Platform teams.

Build and maintain responsive, accessible web interfaces for a consumer health platform using React and TypeScript. Translate designs into performant UI, create reusable components, integrate REST/GraphQL APIs, collaborate with product/design/backend teams, participate in code reviews, and optimize frontend performance across devices and browsers.

The Frontend Developer will replace components, optimize UI workflows, collaborate with backend teams, and improve development processes.

Develops and maintains frontend web pages, portals, templates, trackers, presentations, and web-based programs for agent, employee, and customer websites. Translates Figma and Photoshop designs into HTML and CSS, uses C#, CMS platforms, Visual Studio, GitHub, and CI/CD practices, performs unit testing, optimizes user experiences, collaborates cross-functionally, and coordinates with vendors.

The Software Engineer will design and maintain payment processing systems, mentor other engineers, and ensure security in client transactions within the crypto ecosystem.

Senior UI developer responsible for designing and building responsive React-based UIs and dashboards for cybersecurity analytics. Develop backend services and APIs in Python, integrate security data sources, optimize SQL Server/PostgreSQL reporting, collaborate with stakeholders, influence architecture, and mentor junior developers.

Design and implement developer-facing UI from Figma to production using Hotwire (Turbo + Stimulus) and ViewComponents. Own the dashboard, API playgrounds, docs, marketing site, and data visualization. Optimize performance and bundle size, maintain a coherent component system, and ship polished, production-ready front-end with tests and CI/CD.

Design, develop, and maintain large-scale Angular applications using NGRX and RxJS. Implement best practices for performance, responsiveness, and cross-browser support. Integrate with backend RESTful APIs, participate in code reviews, mentor junior developers, and write clean, testable code.

Build and launch conversion-focused landing pages, advertorials, and funnels for DTC brands. Run rapid experiments and A/B tests, implement analytics/tracking (GA4, GTM, Hotjar), optimize mobile performance and page speed, collaborate with paid media and creative teams, assist with direct-response copy, and create scalable processes for faster launches.