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English
$
USD
I will fix node js api bugs or build rest api fast
Oliver
Level 2
4.9
4.9
About this gig
Are you facing issues with your Node.js API or need a backend built fast?
I can fix bugs, debug errors, or build a clean and scalable REST API for your application.
As a full-stack web developer, I have experience building RESTful APIs for e-commerce platforms and various web applications using Node.js, Express, and databases like MongoDB, MySQL, and PostgreSQL.
If you need a custom REST API for your application, I'm here to help you get it done efficiently and professionally.
What services I will provide,
- Develop Restful API with a specific number of endpoints.
- Design the database with MongoDB, Firebase, MySQL, or any other databases.
- Secure APIs with JWT authentication and proper authorization
- Fix bugs and debug existing backend issues
- Provide API documentation for you.
Tools I will use,
- Node.js
- Express.js
- Nest.js
- MongoDB
- MySQL
- Firebase
- PostgreSQL
- MVC architecture
Why me?
- Clean and well-structured code
- Fast delivery and clear communication
- Focused on solving your problem efficiently
- 100% satisfaction guarantee
NOTE: Please contact me before placing an order so I can understand your requirements and provide the best solution.
Get to know Oliver
Oliver
Full Stack Web Developer
Level 2
- FromSri Lanka
- Member sinceJul 2022
- Avg. response time1 hour
- Last delivery1 month
Languages
Sinhala, English
If you're looking for an experienced full-stack developer, you're in the right place. With 5+ years of experience, I specialize in building scalable web applications and SaaS platforms. I am an expert in Node.js, Next.js, and React, and I build serverless backends using AWS Lambda. I also develop AI-powered features and chatbots using LangChain and LLMs. Proficient in TypeScript, Angular, MongoDB, MySQL, Firebase, and PostgreSQL. I deliver clean, maintainable, production-ready code on time. Let's build something great!
My Portfolio
FAQ
Can you fix bugs in an existing API?
Yes! I can identify and fix issues in your existing Node.js API, including backend errors, database problems, and authentication issues.
Which databases do you work with?
I work with MongoDB, MySQL, PostgreSQL, Firebase, Supabase, or any database of your choice.
How long will it take to complete my API?
Delivery time depends on your requirements and the number of endpoints. Small projects can be done within 1–3 days, while larger projects may take longer. Contact me to discuss your timeline.
Will my API be secure?
Absolutely! I use JWT authentication and proper authorization to secure your endpoints, ensuring your backend is safe and reliable.
Do you provide documentation?
Yes, I provide clear API documentation so you can easily integrate it with your frontend or share it with your team.
Can you integrate third-party services like payment or Firebase?
Yes! I can integrate services like Stripe, PayPal, Firebase, or other APIs based on your project needs.
Do you offer support after delivery?
Yes, I provide support to ensure your API runs smoothly and can assist with minor adjustments or bug fixes after delivery.
Reviews
75 reviews for this Gig
| (71) | ||
| (4) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
N 
nig_nigel
United Kingdom
Oliver did a great job working on our platform (MeterQube). HE quickly understood the requirements, fixed key issues around Stripe payment flow and location handling, and communicated clearly throughout the process. What I appreciate most was that he didn't overcomplicate things, he focused on getting...
$100-$200
Price
7 days
Duration
Helpful?T 
tommytox
Repeat Client
Netherlands
Very smart ans polite guy to work with
Up to $50
Price
1 day
Duration
Helpful?T tommytox
Repeat Client
Netherlands
Very happy to work with Oliver again!
Up to $50
Price
1 day
Duration
Helpful?T tommytox
Repeat Client
Netherlands
Very happy to work with Olivier again!
$100-$200
Price
10 days
Duration
Helpful?G gleap_hk
Repeat Client
Hong Kong
Great value really collaborative experience good language competence
$100-$200
Price
3 days
Duration
Helpful?
Reviews
75 reviews for this Gig
| (71) | ||
| (4) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
N nig_nigel
United Kingdom
Oliver did a great job working on our platform (MeterQube). HE quickly understood the requirements, fixed key issues around Stripe payment flow and location handling, and communicated clearly throughout the process. What I appreciate most was that he didn't overcomplicate things, he focused on getting...
$100-$200
Price
7 days
Duration
Helpful?T tommytox
Repeat Client
Netherlands
Very smart ans polite guy to work with
Up to $50
Price
1 day
Duration
Helpful?T tommytox
Repeat Client
Netherlands
Very happy to work with Oliver again!
Up to $50
Price
1 day
Duration
Helpful?T tommytox
Repeat Client
Netherlands
Very happy to work with Olivier again!
$100-$200
Price
10 days
Duration
Helpful?G gleap_hk
Repeat Client
Hong Kong
Great value really collaborative experience good language competence
$100-$200
Price
3 days
Duration
Helpful?
