Professional Work / Backend Engineering

Webbie

Backend API Development and Authentication Integration

Backend Developer · CVSpan

July–December 2024

Webbie is a professional software project I contributed to during my time as a Backend Developer at CVSpan.

My work focused on developing backend services using Node.js and TypeScript, working with REST APIs, integrating authentication functionality, and supporting database operations through Prisma.

The experience strengthened my understanding of backend architecture, application security, API design, and testing within a professional development environment.

  • Node.js
  • TypeScript
  • Prisma
  • Chai
  • REST APIs
  • OAuth

At a glance

Engineering focus

  • Backend Development

    Node.js and TypeScript application services.

  • API Engineering

    REST endpoints, request handling, and integration.

  • Authentication

    OAuth-related authentication integration.

  • Data Access and Testing

    Prisma data operations and backend validation work.

01 / Context

Project overview

During my time at CVSpan, I worked on backend development for Webbie, contributing to the services that supported the application's functionality.

My responsibilities involved working with Node.js and TypeScript to develop and maintain backend features, including API endpoints, authentication integrations, and database-related operations.

The project provided practical experience building application services that need to communicate clearly with other parts of a software system. It also strengthened my understanding of maintaining backend code within an existing product development environment.

Project objectives

My objective was to contribute reliable, maintainable backend functionality that supported the broader application's requirements. My technical focus included:

  • Developing and maintaining backend services.
  • Supporting REST API functionality.
  • Integrating authentication mechanisms.
  • Working with database access and persistence through Prisma.
  • Improving the clarity and maintainability of backend code.
  • Testing API behaviour and investigating integration issues.
  • Supporting dependable communication between application components.

02 / Ownership

My Role and Contributions

As a Backend Developer at CVSpan, I contributed to Webbie's backend implementation within an existing product and development team.

  • Worked with Node.js and TypeScript.
  • Developed and maintained REST API endpoints.
  • Implemented or integrated OAuth-related authentication functionality.
  • Worked with Prisma for database operations.
  • Investigated backend issues and debugged API behaviour.
  • Tested relevant functionality with the available development tools.
  • Supported integration between backend services and other application components.
  • Maintained readable and organized backend code.

This role helped me strengthen my ability to translate application requirements into backend functionality while working within an established development process.

03 / Technical approach

Architecture and technical approach

My development work focused on Webbie's backend application layer. I worked with Node.js and TypeScript to develop application services and REST API functionality.

Prisma provided an abstraction for database operations I worked on, while authentication integrations required attention to how identity and authorization information moved through the system.

I approached my responsibilities by keeping API behaviour, data handling, and integration concerns organized so individual features could be developed, tested, and maintained more effectively. I do not make claims about specific database engines, service boundaries, or authentication providers.

  • Node.js and TypeScript

    Backend application logic and strongly typed development.

  • REST APIs

    Endpoint implementation and communication with application consumers.

  • OAuth Integration

    Authentication-related functionality and external identity integration.

  • Prisma

    Database access and application data operations.

04 / Engineering judgment

Implementation decisions

One important consideration in my backend work was maintaining a clear separation between request handling, application logic, and data access. This helped me think carefully about backend maintainability and how changes in one part of a system can affect other components.

I also worked with TypeScript to improve the clarity of application contracts and reduce avoidable type-related issues.

For authentication-related functionality, I considered how external identity integrations interacted with backend behaviour. These experiences strengthened my understanding of API design, maintainable backend structure, and reliable application integration.

05 / Problem solving

Engineering challenges and solutions

  1. Integrating Authentication Functionality

    Challenge

    Authentication integration introduced the need to coordinate external identity mechanisms with application-level backend behaviour.

    My contribution

    I worked on OAuth-related functionality and investigated how authentication data interacted with relevant backend workflows. This helped me improve my understanding of identity integration and the importance of handling authentication responses carefully.

  2. Maintaining Clear API Behaviour

    Challenge

    Backend APIs need predictable request and response behaviour so that other application components can use them reliably.

    My contribution

    I worked on developing and refining REST API functionality while paying attention to how requests were handled and how relevant data was returned. This reinforced the importance of consistent API contracts and clear backend implementation.

  3. Debugging and Testing Backend Functionality

    Challenge

    Developing backend features involved identifying implementation issues and validating whether functionality behaved as expected.

    My contribution

    I used debugging and API testing to investigate problems, check responses, and improve the reliability of the code I contributed. This helped me build stronger habits around validating functionality rather than relying only on successful manual execution.

06 / Quality

Testing and validation

Testing was an important part of my backend development responsibilities. I worked on validating API behaviour, investigating backend errors, and checking authentication-related functionality.

The project technology list includes Chai as a testing tool. I do not have evidence to describe its exact role, test coverage, or specific test outcomes, so I avoid making those claims.

Working with the available development and testing tools helped me understand how to identify integration issues and verify that backend changes behaved as expected. The experience reinforced the value of clear API contracts, repeatable tests, and systematic debugging.

  • REST API behaviour checks
  • Request and response verification
  • Authentication integration checks
  • Database-operation validation where applicable
  • Backend debugging
  • Repeatable testing with available tools

07 / Impact

Engineering outcomes

My work on Webbie provided valuable professional experience developing backend services using Node.js and TypeScript.

Through the project, I strengthened my experience with REST APIs, authentication integrations, data-access tooling, and backend testing. It also improved my ability to work within an existing codebase and contribute application functionality that other parts of a product depend on.

This experience has continued to inform how I approach backend architecture, integration boundaries, and maintainable code in later projects.

  • Professional Node.js and TypeScript development
  • REST API implementation
  • OAuth authentication integration experience
  • Prisma data-access work
  • Backend testing and debugging
  • Contributing to an established software product

08 / Reflection

Lessons learned

Working on Webbie strengthened my understanding of professional backend development.

I learned the importance of clear API contracts, consistent data handling, and carefully managing authentication-related integration points. Working with TypeScript and Prisma also helped me understand how development tools can support maintainable backend functionality.

Testing and debugging reinforced the importance of checking application behaviour systematically. Most importantly, the experience helped me become more confident contributing to existing codebases and implementing backend features within a professional development environment.