I will fix node js backend bugs and API issues

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donlexicon
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Lexicon
fix node js backend bugs and API issues
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fix node js backend bugs and API issues
Full Screen
Full Screen
fix node js backend bugs and API issuesfix node js backend bugs and API issuesfix node js backend bugs and API issues

About this gig

Having issues with your Node.js backend or API?

I will help you debug, fix, and optimize backend issues in your Node.js application. Whether you are dealing with API errors, authentication problems, database issues, payment integration bugs, or server-side failures, I can help identify and resolve the problem quickly.

I specialize in backend systems built with Node.js, Express.js, MongoDB, and REST APIs.

Services I can help with:

Fix Node.js backend bugs

Debug REST API issues

Resolve authentication/JWT problems

Fix MongoDB database errors

Payment integration troubleshooting

Webhook and API debugging

Server-side performance fixes

Backend code optimization

Why work with me?

Fast debugging and issue resolution

Clean and maintainable fixes

Real-world backend development experience

Strong communication and support

Tech Stack:

Node.js, Express.js, MongoDB, REST APIs, Payment APIs, JavaScript.

Please contact me before placing an order so we can review the issue properly.

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Performance
    • Security
    • Operating systems

  • Programming language

    • JavaScript

  • Frontend framework

    • Next.js
    • React.js
    • Tailwind CSS

  • Backend framework

    • Express.js
    • NestJS
    • Node.js

Get to know Lexicon

Lexicon

Software Engineer

  • FromNigeria
  • Member sinceMay 2021
  • Avg. response time1 hour

  • Languages

    English
I am a Full-Stack Software Engineer and Technical Founder with over half a decade of experience designing and building scalable applications, cloud-native infrastructures, and secure fintech solutions. I specialize in developing robust backends, intuitive frontends, and blockchain-integrated payment systems that solve real-world problems at scale. My expertise spans modern technologies, including React, Node.js/Express, Go, AWS, Docker, and blockchain platforms such as Lisk. I’m passionate about building systems that are high-performing, user-friendly, resilient, secure, and future-proof.

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