You will get a fix for your Node.js / Express API error, crash, or backend issue


Project details
I will fix your Node.js / Express backend issue quickly and reliably.
Whether your API is crashing, returning errors, failing authentication, or behaving unexpectedly, I’ll investigate the root cause and deliver a clean, stable fix.
I have real industry experience building production‑ready backend systems, including authentication flows, routing, SQL queries, controllers, and deployment pipelines.
What’s included:
Full bug investigation
Error fixing
Improved stability
Updated documentation
Clean, maintainable code
If you need a dependable backend engineer to fix your Node.js / Express issue, I’m ready to help.
Whether your API is crashing, returning errors, failing authentication, or behaving unexpectedly, I’ll investigate the root cause and deliver a clean, stable fix.
I have real industry experience building production‑ready backend systems, including authentication flows, routing, SQL queries, controllers, and deployment pipelines.
What’s included:
Full bug investigation
Error fixing
Improved stability
Updated documentation
Clean, maintainable code
If you need a dependable backend engineer to fix your Node.js / Express issue, I’m ready to help.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included $40
These options are included with the project scope.
$40
- Delivery Time 2 days
- Number of Revisions 1
- Bug Investigation
- Fix Documentation
- Detailed Code Comments
About Jerry
Backend & Full Stack Engineer FastAPI, Node.js, React Native
Manchester, United Kingdom - 9:25 am local time
I specialise in building fast, reliable, and scalable systems using Node.js, Express, Python, FastAPI, Ruby on Rails, React Native, Vue.js, and Docker.
I’ve built everything from full‑stack social platforms to cryptographic image‑verification systems, mobile apps, and multithreaded Java applications. My work spans backend architecture, API development, authentication, mobile features, and deployment pipelines — giving me the versatility to support both early‑stage startups and established engineering teams.
You can view examples of my work and projects at jarthur.dev
What I can help you with:
Backend development (FastAPI, Python, Node.js, REST APIs)
Full‑stack web apps (Vue.js, JavaScript, Bootstrap, SQLite)
Mobile development (React Native + Expo)
API design, integration, and optimisation
Authentication, tokens, and secure data flow
Debugging, refactoring, and performance improvements
Docker, Linux, CI/CD pipelines
Java socket programming, concurrency, and server‑client systems
Why clients work with me:
Real engineering experience
Strong communication — clear, fast, and reliable
Clean, maintainable code following best practices
Ability to quickly understand existing codebases
Comfortable working independently or within Agile teams
Fast turnaround on small tasks and consistent delivery on larger projects
If you need a dependable engineer who can build features, fix issues, improve performance, or take ownership of backend and full‑stack development, I’d be happy to help. Let’s build something great.
Steps for completing your project
After purchasing the project, send requirements so Jerry can start the project.
Delivery time starts when Jerry receives requirements from you.
Jerry works on your project following the steps below.
Revisions may occur after the delivery date.
Investigate the issue
I review the affected route, controller, logs, and reproduction steps to identify the exact cause of the Node.js / Express backend issue.
