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Fiverr Pro
Português
$
USD
I will develop custom API integrations, gateways and or automations
John K
5,0
5,0
Sobre este Serviço
PLEASE CONTACT ME FIRST
Need a seasoned developer to seamlessly integrate APIs or fix broken scripts across any language or platform?
Im a full-stack developer with 15+ years of experience in software, systems, and networking. I specialize in backend API integrations and script corrections using Node.js, PHP, Python, and JavaScript and support nearly all major frameworks.
What I Offer:
API Integration Secure, scalable connections to:
Payment: Stripe, PayPal, Square
Marketplaces: Amazon, eBay
Social: Facebook, Instagram, TikTok
Mapping: Google Maps
Analytics: Google Analytics
Shipping: UPS, FedEx
VoIP: 3CX and more
Script Debugging & Optimization
Clean, correct, and optimize PHP/Python/JS scripts for speed, security, and reliability.
Cross-Platform Expertise
Whether Linux, Windows, shared hosting, or custom cloud Ive done it all.
Multi-language & Global Support
Translation APIs, multi-currency, internationalization no problem.
Languages & Tools:
Node.js · PHP · Python · MySQL
Why Choose Me?
I deliver working, production-ready integrations not just code snippets. Every project is handled with professionalism, clarity, and precision.
Conheça mais sobre John K
John K
Full Stack, Systems and Software Engineering
- A partir deEstados Unidos
- Membro desdeabr. de 2015
- Responde em aprox.:14 dias
- Última entrega7 meses
Idiomas
Inglês
I'm a full-stack developer and IT systems engineer with 15+ years of experience in software, hardware, networking, and business technology. I build production-ready web apps, backend systems, databases, automations, and integrations.
My skills include JavaScript, HTML, CSS, Node.js, Java, C/C++, PHP, Python, VB, MySQL, APIs, Linux, Windows Server, Active Directory, networking, and troubleshooting.
I understand the full stack from UI and backend to databases, servers, operating systems, networks, and business workflows. I build maintainable solutions for real business environments.
Outros serviços de Desenvolvimento de Software que eu ofereço
Perguntas frequentes
What types of APIs can you integrate?
I can integrate a wide range of APIs, including but not limited to payment processors, social media platforms, e-commerce platforms, and communication tools.
How long does API integration typically take?
How long does API integration typically take? The time required for API integration varies depending on the complexity of the integration and the availability of documentation. However, I strive to complete integrations efficiently and usually deliver within the specified timeline.
Can you fix scripts written by other developers?
Absolutely! I have experience debugging and correcting scripts written by other developers. Whether it's a small syntax error or a more complex issue, I can help identify and rectify it.
What if I encounter issues after the project is completed?
I provide post-project support to address any issues or questions you may have after the completion of the project. Simply reach out to me, and I'll be happy to assist you.
Can you provide ongoing maintenance for API integrations?
Yes, I offer ongoing maintenance services for API integrations to ensure they continue to function smoothly. Feel free to discuss your maintenance needs, and we can tailor a plan to suit your requirements.
How do I know if my project is a good fit for your services?
If your project involves API integration or script corrections using PHP, Python, or JavaScript, then it's likely a good fit for my services. Feel free to contact me with the details of your project, and I can provide further guidance.
Avaliações
21 avaliações deste Serviço
| (21) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Classificação detalhada
- Nível de comunicação do freelancer
- Qualidade da entrega
- Valor da entrega
Ordenar por
Mais relevante
A axrmarketing
Cliente recorrente
Estados Unidos
John K truly stands out in the Software Development field with his PROFESSIONALISM and CODE EXPERTISE. Exceptionally proactive in communication and remarkably polite, he effortlessly integrates into the team like a natural. BUG-FREE work and seamless cooperation make his service EXCEPTIONAL every time! 🙌
US$ 50-US$ 100
Preço
6 dias
Tempo
Útil?A axrmarketing
Cliente recorrente
Estados Unidos
Responsiveness is unparalleled. John worked with me step by step. Professional to the max!
Até US$ 50
Preço
7 dias
Tempo
Útil?A axrmarketing
Cliente recorrente
Estados Unidos
John is great, very responsive and insightful. Quick worker, and great at troubleshooting! He fixed an issue for me that two others were not able to get done and did so in a fraction of the time!
US$ 50-US$ 100
Preço
4 dias
Tempo
Útil?H harleycarterhkc
Cliente recorrente
Estados Unidos
Thanks for the clarification and for reviewing everything.
Até US$ 50
Preço
1 dia
Tempo
Útil?P plywr1
Cliente recorrente
Estados Unidos
Continues to do great work. He anticipates the possible variables a user may experience and creates a straightforward UX. Always goes above and beyond.
US$ 100-US$ 200
Preço
2 semanas
Tempo
Útil?
Avaliações
21 avaliações deste Serviço
| (21) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Classificação detalhada
- Nível de comunicação do freelancer
- Qualidade da entrega
- Valor da entrega
Ordenar por
Mais relevante
A axrmarketing
Cliente recorrente
Estados Unidos
John K truly stands out in the Software Development field with his PROFESSIONALISM and CODE EXPERTISE. Exceptionally proactive in communication and remarkably polite, he effortlessly integrates into the team like a natural. BUG-FREE work and seamless cooperation make his service EXCEPTIONAL every time! 🙌
US$ 50-US$ 100
Preço
6 dias
Tempo
Útil?A axrmarketing
Cliente recorrente
Estados Unidos
Responsiveness is unparalleled. John worked with me step by step. Professional to the max!
Até US$ 50
Preço
7 dias
Tempo
Útil?A axrmarketing
Cliente recorrente
Estados Unidos
John is great, very responsive and insightful. Quick worker, and great at troubleshooting! He fixed an issue for me that two others were not able to get done and did so in a fraction of the time!
US$ 50-US$ 100
Preço
4 dias
Tempo
Útil?H harleycarterhkc
Cliente recorrente
Estados Unidos
Thanks for the clarification and for reviewing everything.
Até US$ 50
Preço
1 dia
Tempo
Útil?P plywr1
Cliente recorrente
Estados Unidos
Continues to do great work. He anticipates the possible variables a user may experience and creates a straightforward UX. Always goes above and beyond.
US$ 100-US$ 200
Preço
2 semanas
Tempo
Útil?
