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Fiverr Pro
English
$
USD
I will build and integrate apis for you
Julius O
Level 2
4.0
4.0
Vetted by Fiverr Pro
Julius O was selected by the Fiverr Pro team for their expertise.
About this gig
Looking for an experienced developer to build and integrate APIs for your application? You're in the right place!
I specialize in creating high-performance, secure, and scalable APIs to power your applications and ensure seamless third-party integrations. Whether its a custom API, RESTful services, SOAP, or GraphQL, I deliver top-notch solutions tailored to your needs.
What I Offer:
- Custom API development for web and mobile applications
- Integration with third-party APIs (e.g., Stripe, Twilio, PayPal, Google APIs)
- Secure data handling with authentication (OAuth, JWT, etc.)
- API documentation for easy integration and use
- Troubleshooting and optimization of existing APIs
Exclusive Offers:
- Free consultation to discuss your project requirements in detail.
- 2-months Free Support
- Basic API documentation included free of charge for all packages.
Why Choose Me?
- 6+ years of experience in backend development and API integration
- Expertise in technologies like Node.js, Python, PHP, and Go
- Quick and clear communication for a smooth collaboration
No matter the complexity, I ensure seamless integration and robust API performance for your application.
Get to know Julius O
Julius O
Experienced Web and Mobile App Engineer
Level 2
Julius O is part of the Fiverr Pro catalog and has been hand-picked by a dedicated Fiverr Pro team for their skills and expertise.
Vetted for
Software Development
Website Development
- FromNigeria
- Member sinceJan 2024
- Avg. response time1 hour
- Last delivery3 days
Languages
English, French
I am a versatile software engineer skilled in Nodejs, PHP, Reactjs, Typescript, Nextjs, and Python. Experienced in developing scalable solutions across various domains, with expertise in both backend and frontend technologies.
My Portfolio
Other Software Development Services I Offer
FAQ
What kind of APIs can you develop?
I can create RESTful APIs, GraphQL APIs, or custom APIs and even SOAP services tailored to your specific needs.
Can you integrate multiple third-party APIs in a single project?
Yes, I can integrate multiple APIs, ensuring seamless functionality across your application.
Do you provide API documentation?
Yes, I deliver detailed documentation to make it easy for developers to use and integrate the APIs.
What technologies do you use for API development?
I use Node.js, Python (Flask/Django), PHP (Laravel), and Go for API development, depending on your project requirements.
Can you help with API-related issues in my existing application?
Absolutely! I can troubleshoot, optimize, or enhance existing APIs to improve their performance and reliability.
What type of industries have you worked with?
I’ve worked with fintech, HR-Tech, logistics, and more, tailoring APIs to meet various business needs.
Reviews
4 reviews for this Gig
| (3) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
Q 
quizandriseltd
Repeat Client
United Kingdom
Working with Julius was an exceptional experience — the expertise, problem-solving ability, and professionalism of a true senior engineer. He implemented the complete payment infrastructure for my platform: Stripe checkout, webhook handling, backend API connectivity, and Cloudflare Worker routing. He...
3 weeks
Duration
Helpful?C 
ciko1999
Italy
great good job
6 days
Duration
Helpful?G guillaumesarfat
Repeat Client
France
It was really a pleasure to work with Julius, already asked him to collaborate again ⭐️⭐️⭐️⭐️⭐️, if you search someone with great hard and soft skills for your project, he is the reliable person to hire !
3 weeks
Duration
Helpful?S sheepofwar
Germany
The application was developed to meet my requirements and was automatically approved while I was away on vacation. Not usable.
3 weeks
Duration
Helpful?
Reviews
4 reviews for this Gig
| (3) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
Q quizandriseltd
Repeat Client
United Kingdom
Working with Julius was an exceptional experience — the expertise, problem-solving ability, and professionalism of a true senior engineer. He implemented the complete payment infrastructure for my platform: Stripe checkout, webhook handling, backend API connectivity, and Cloudflare Worker routing. He...
3 weeks
Duration
Helpful?C ciko1999
Italy
great good job
6 days
Duration
Helpful?G guillaumesarfat
Repeat Client
France
It was really a pleasure to work with Julius, already asked him to collaborate again ⭐️⭐️⭐️⭐️⭐️, if you search someone with great hard and soft skills for your project, he is the reliable person to hire !
3 weeks
Duration
Helpful?S sheepofwar
Germany
The application was developed to meet my requirements and was automatically approved while I was away on vacation. Not usable.
3 weeks
Duration
Helpful?
