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Senior Full-Stack Developer (Angular/ExpressJS)

Worldly

$135,000 - $160,000
Sep 9, 2025
Concord, CA, US
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Worldly is seeking an experienced Senior Full-Stack Developer to design, develop, and maintain a large-scale Angular front-end application and build/integrate back-end systems using ExpressJS and various database technologies to provide impact intelligence to businesses.

Requirements

  • Proven experience in designing, developing, and maintaining large-scale Angular applications (version 8 or later).
  • Strong proficiency in TypeScript, HTML5, CSS3, and modern JavaScript (ES6+).
  • Experience with NGRX for state management and RxJS for reactive programming.
  • Familiarity with building reusable and testable Angular components, services, and modules.
  • Experience with ExpressJS and Node.js for building RESTful APIs and microservices.
  • Proficient in working with relational databases (e.g., PostgreSQL, MySQL) and document-based databases (e.g., MongoDB).
  • Knowledge of web networking protocols (HTTP, HTTPS, WebSockets) and security best practices (authentication, authorization, encryption).

Responsibilities

  • Design and develop complex, scalable, and high-performance Angular applications using the latest version of Angular and related technologies.
  • Build and maintain RESTful APIs and microservices using ExpressJS and Node.js.
  • Integrate the front-end with back-end systems, ensuring seamless data flow and communication.
  • Design and develop database schemas for relational (e.g., PostgreSQL, MySQL) and document-based (e.g., MongoDB) databases.
  • Implement best practices for code structure, maintainability, performance optimization, and security.
  • Utilize NGRX for state management and RxJS for reactive programming within the Angular application.
  • Ensure cross-browser compatibility and responsive design for optimal user experience on various devices.

Other

  • 8 or more years of related experience
  • Strong problem-solving and debugging skills.
  • Excellent communication and teamwork abilities.
  • Familiarity with agile methodologies and project management tools.
  • Familiarity with UI/UX design principles and accessibility standards.