Sfoglia categorie
Esplora
Fiverr Pro
Italiano
$
USD
I will fix backend bugs and optimize node js nestjs apis
Micheal
5,0
5,0
Informazioni su questo servizio
Are you stuck with a crashing backend or slow API? Ill quickly identify and fix bugs in your Node.js or NestJS backend and optimize your APIs for speed and reliability.
What I offer:
- Fix backend bugs and crashes in Node.js or NestJS.
- Optimize API response time and database queries.
- Clean up messy code and add clear documentation.
- Review your backend module and suggest improvements for scalability.
Why choose me?
- Backendfocused: I write clean, maintainable code using best practices.
- Fast: I prioritize fast investigation and clear communication.
- Transparent: Every fix includes comments and documentation so you understand what changed.
Please message me before ordering so we can agree on scope and make sure your code will be safe and stable.
Scopri di più su Micheal
Micheal
Backend Developer APIs Databases Security Deployment
- DaNigeria
- Membro daset 2024
- Tempo di risposta medio1 ora
- Ultima consegna1 mese
Lingue
Inglese
Hi, I'm Micheal. I am a Backend Engineer specializing in building secure, high-performance distributed systems and payment infrastructures. With over 3 years of experience, I help businesses design fault-tolerant APIs, integrate complex payment gateways (like Paystack and Stripe), and ensure 99.9% uptime for critical applications.Whether you need a robust NestJS backend from scratch, a secure webhook verification pipeline, or database optimization, I deliver clean, scalable, and production-ready code. Let's build a backend that scales with your business. Message me to discuss your project!
Altri servizi della categoria Sviluppo di software offerti da me
FAQ
Can you really fix any Node.js or NestJS bug?
I focus on API bugs, crashes, auth issues, and performance problems. Very legacy or low‑level system code may need extra analysis. Message me your case first.
Do you need my codebase?
Yes. I need access to your code (GitHub, zip, or repo) to reproduce and fix the bug or optimize the API.
What if I need new features, not just fixes?
This gig is mainly for bug fixes and optimization. I can add small features depending on scope; for bigger features, we can discuss a custom offer.
How fast can you deliver?
Basic bug fixes in 1–2 days. Optimization and full‑module review may take 3–6 days depending on complexity.
Recensioni
2 recensioni per questo servizio
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Valutazione dettagliata
- Livello di comunicazione del venditore
- Qualità della consegna
- Valore della consegna
Ordina per
Più rilevante
Q 
quatumsparktech
Pakistan
He did an Absolutely exceptional work. They didn't just write code; they optimized the entire logic of our backend. The integration was seamless, the documentation was clear, and they handled complex edge cases I hadn't even considered. Professional, communicative, and highly skilled. Will definitely be a long-term partner for our scaling needs!
Fino a 50 USD
$
3 giorni
Tempo
E 
Risposta del venditore
Utile?A 
adrelinapaul
Germania
Great experience working with this seller. Delivered the Node.js backend on time, followed all requirements, and maintained clear communication throughout. Will definitely order again.
Fino a 50 USD
$
2 giorni
Tempo
Utile?
Recensioni
2 recensioni per questo servizio
| (2) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Valutazione dettagliata
- Livello di comunicazione del venditore
- Qualità della consegna
- Valore della consegna
Ordina per
Più rilevante
Q quatumsparktech
Pakistan
He did an Absolutely exceptional work. They didn't just write code; they optimized the entire logic of our backend. The integration was seamless, the documentation was clear, and they handled complex edge cases I hadn't even considered. Professional, communicative, and highly skilled. Will definitely be a long-term partner for our scaling needs!
Fino a 50 USD
$
3 giorni
Tempo
E Risposta del venditore
Utile?A adrelinapaul
Germania
Great experience working with this seller. Delivered the Node.js backend on time, followed all requirements, and maintained clear communication throughout. Will definitely order again.
Fino a 50 USD
$
2 giorni
Tempo
Utile?
