Senior Fullstack Developer - Freelancer

Senior Fullstack Developer - Freelancer

SKILLS: Node.js | Angular | Auth0 |

B2B: PLN 140 - 160 / Hour 💰

LOCATION: REMOTE (POLAND)

START DATE: 01.12.2025

DURATION: 1 month

Key Duties and Requirements: A Roadmap to Your Professional Success 🚀

Scope of responsibilities:

• Design, build, and maintain scalable backend services using Node.js

• Develop APIs and microservices to support frontend and mobile applications

• Ensure high performance and responsiveness of backend systems

• Design and Implement Frontend features using Angular and ensure high performance, responsiveness, and a great user experience.

• Auth0: Hands-on experience integrating and configuring identity and access management (IdM) in Node.js / Angular applications.

• Implement and manage API key security mechanisms for third-party service integration and internal service-to-service communication.

• Collaborate with product owners and other developers to define, design, and ship new features.

• Conduct code reviews to maintain high standards of code quality, performance, and security across the stack.

• Maintain high standards for documentation, security, and deployment processes

Here’s a set of skills we require:

• 5+ years of professional development experience, with a strong focus on Fullstack roles.

• Expert proficiency in Node.js for building scalable backend services (RESTful APIs).

• Proficiency in Angular for complex, single-page application development.

• Mandatory hands-on experience with Auth0 for implementing secure authentication and authorization

• Architecture: Ability to work with existing codebases, suggest improvements, and maintain clean code standards