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I will fix bugs and optimise react nodejs or typescript code
Emmanuel A.
About this gig
Is your web app throwing console errors, failing build pipelines, or running slow? A single broken function or unhandled promise can ruin user experience and cost you customers.
As a FullStack Engineer with 5+ years of experience, I specialise in rapid troubleshooting, root-cause analysis, and clean refactoring across the JavaScript & TypeScript ecosystems.
What I Fix & Optimise:
- Frontend: React re-rendering bugs, state management glitches (Redux/Zustand), CSS/Tailwind layouts, and Next.js hydration errors.
- Backend & APIs: Express/NestJS crash errors, unhandled async exceptions, broken REST/GraphQL endpoints, and CORS issues.
- Database & Speed: Slow PostgreSQL/MongoDB queries, memory leaks, and server performance bottlenecks.
- Builds & Dependencies: Node module conflicts, TypeScript errors, Webpack/Vite configs, and broken CI/CD builds.
Why Choose Me?
- Clean Solutions: I fix the root cause, not just the symptom, so bugs don't return.
- Safe Delivery: Branching techniques to ensure zero disruption to live users.
- Clear Updates: Detailed breakdowns of what caused the issue and how it was fixed.
Send me a message with your error details, or place an order to get it fixed today!
Get to know Emmanuel A.
Emmanuel A.
Fullstack Software and AI Engineer with over 5 years experience
- FromNigeria
- Member sinceApr 2022
- Last delivery8 months
Languages
English, French, Spanish
Hi! I’m a Fullstack JavaScript, AI Agents & Generative AI Engineer with 5+ years of experience building fast, scalable apps and smart AI solutions for businesses.
Whether you need full-stack web applications, custom AI Agents, GenAI/LLM workflows, REST APIs, or bug fixes, I write clean, maintainable TypeScript & JavaScript code built for high performance.
💻 Core Skills:
✔️AI & ML: AI Agents, GenAI, LLM Integrations, Python
✔️Frontend: React, Next.js, Vue.js, Tailwind CSS
✔️Backend: Node.js, NestJS, REST APIs, Microservices
✔️DB & Payments: PostgreSQL, MongoDB, Stripe, Paystack
🚀 Let’s build!
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FAQ
How quickly can you get started on fixing my bug?
I can usually begin working on urgent bug fixes immediately once codebase access and reproduction steps are provided.
What details do you need to start debugging?
I will need repository access, steps to reproduce the issue, and any relevant error logs or screenshot/video recordings of the bug in action.
What happens if a bug turns out to be more complex than expected?
I will conduct an initial review before touching your code. If the issue is deeper than the package selected, I will explain the root cause and provide a transparent custom offer.
Will fixing my issue break other parts of my application?
No. I isolate all work in dedicated Git branches and thoroughly test surrounding dependencies to ensure full regression safety before merging.
