I will build secure API or graphql backend in node js and c sharp

B
briantheedev
B
briantheedev
Thee Dev
build secure API or graphql backend in node js and c sharp
Full Screen
build secure API or graphql backend in node js and c sharp
Full Screen
build secure API or graphql backend in node js and c sharpbuild secure API or graphql backend in node js and c sharp

About this gig

Hello, I specialize in building, securing, and integrating structured REST and GraphQL APIs linked to scalable backend database models using Node.js (Express/NestJS) and C# (.NET Core).

I securely integrate third-party web APIs to stream live updates and metrics, implement rigorous user authentication (JWT/OAuth) to protect transaction states, and perform system integrations with external setups to drive efficiency and save on costs.


What I offer:

- Custom REST API & GraphQL development (NodeJS/Express/NestJS/ASP.NET Core)

- Secure third-party API integrations & real-time Webhooks

- Bulletproof Authentication & Authorization systems

- Relational database schema integration (PostgreSQL, MSSQL, MongoDB, Redis)


Send me a message with your project brief so we can confirm the scope before you order!

  • Expertise

    • Algorithms & Data structures
    • Security
    • Design
    • Databases
    • Testing procedures

  • Programming language

    • C#

  • Frontend framework

    • Angular
    • Next.js
    • React.js

  • Backend framework

    • Express.js
    • NestJS
    • Node.js

Get to know Thee Dev

Thee Dev

Full Stack Developer, API Integration, QA Automation Specialist

  • FromKenya
  • Member sinceJun 2026

  • Languages

    English
I am a professional Full-Stack Developer, Data Modeler, and QA Automation Engineer dedicated to building robust, highly secure, and optimized web applications. With a strong background in software engineering and agile practices, I specialize in creating responsive frontend interfaces using React and Next.js, coupled with high-performance backends in Node.js, C# (.NET Core), and Nest JS.

Other Software Development Services I Offer

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